BACKGROUND
[0001] US 6349560 discloses a method and apparatus for the cooling of a liquid within a container by
means of a liquid cooler.
[0002] US 2004/079106 discloses an adsorption cooling apparatus with an intermittently heated adsorbent
container containing an adsorbent.
SUMMARY
[0003] A substantially thermally sealed storage container according to the present invention
is defined by claim 1. In some embodiments, a substantially thermally sealed storage
container includes an outer assembly and an evaporative cooling assembly integral
to the container. In some embodiments, the outer assembly includes one or more sections
of ultra efficient insulation material substantially defining at least one thermally-controlled
storage region, and a single access conduit to the at least one thermally-controlled
storage region. In some embodiments, the evaporative cooling assembly integral to
the container includes: an evaporative cooling unit affixed to a surface of the at
least one thermally-controlled storage region; a desiccant unit affixed to an external
surface of the container; a vapor conduit, the vapor conduit including a first end
and a second end, the first end attached to the evaporative cooling unit, the second
end attached to the desiccant unit; and a vapor control unit attached to the vapor
conduit.
[0004] In some embodiments, a substantially thermally sealed storage container includes:
an outer wall substantially defining a substantially thermally sealed storage container,
the outer wall substantially defining a single outer wall aperture; an interior wall
substantially defining a thermally-controlled storage region, the interior wall substantially
defining a single interior wall aperture, the interior wall and the outer wall separated
by a distance and substantially defining a gas-sealed gap; at least one section of
ultra-efficient insulation material disposed within the gas-sealed gap; a connector
forming an access conduit connecting the single outer wall aperture with the single
interior wall aperture; a single access aperture to the thermally-controlled storage
region, wherein the single access aperture is defined by an end of the access conduit;
at least one inner wall, the at least one inner wall sealed to the interior wall along
at least one junction, the at least one inner wall and the interior wall separated
by a distance and substantially creating a liquid-impermeable gap; an aperture in
the at least one inner wall; a desiccant unit external to the outer wall, the desiccant
unit including an aperture; a vapor conduit positioned substantially within the access
conduit, the vapor conduit including a first end and a second end, the first end sealed
to the aperture in the at least one inner wall, the second end sealed to the aperture
of the desiccant unit; and a vapor control unit attached to the vapor conduit.
[0005] In some embodiments, a substantially thermally sealed storage container includes:
an outer wall substantially defining a substantially thermally sealed storage container,
the outer wall substantially defining a single outer wall aperture; at least one desiccant
unit external to the outer wall, the desiccant unit including at least one aperture;
an interior wall substantially defining a thermally-controlled storage area within
the container, the interior wall substantially defining a single interior wall aperture,
the interior wall and the outer wall separated by a distance and substantially defining
a gas-sealed gap; a connector forming an access conduit connecting the single outer
wall aperture with the single interior wall aperture; a single access aperture to
the thermally-controlled storage area, wherein the single access aperture is defined
by an end of the access conduit; a primary vapor conduit positioned substantially
within the access conduit, the vapor conduit including a first end and a second end,
the first end sealed to the at least one aperture in the interior wall, the second
end sealed to the at least one aperture of the desiccant unit; a primary vapor control
unit attached to the primary vapor conduit; a first inner wall and a second inner
wall each attached to the interior wall, the inner walls positioned to form a first
liquid-impermeable gap between the first and second inner walls, the first and second
inner walls forming a floor to a first storage region in the thermally-controlled
storage area; an aperture in the first inner wall; a first regional vapor conduit
including a first end and a second end, the first end sealed to the primary vapor
conduit, the second end sealed to the aperture in the first inner wall; a first regional
vapor control unit attached to the first regional vapor conduit; a third inner wall
attached to the interior wall, the third inner wall positioned to form a second liquid-impermeable
gap between the third inner wall and the interior wall, the third inner wall forming
a floor to a second storage region in the thermally-controlled storage area; an aperture
in the third inner wall; a second regional vapor conduit including a first end and
a second end, the first end sealed to the primary vapor conduit, the second end sealed
to the aperture in the third inner wall; and a second regional vapor control unit
attached to the second regional vapor conduit.
[0006] In some embodiments, a substantially thermally sealed storage container includes:
an outer wall substantially defining a substantially thermally sealed storage container,
the outer wall substantially defining a single outer wall aperture; an interior wall
substantially defining a thermally-controlled storage region, the interior wall substantially
defining a single interior wall aperture, the interior wall and the outer wall separated
by a distance and substantially defining a gas-sealed gap; at least one section of
ultra efficient insulation material disposed within the gas-sealed gap; a connector
forming an access conduit connecting the single outer wall aperture with the single
interior wall aperture; a single access aperture to the thermally-controlled storage
region, wherein the single access aperture is defined by an end of the access conduit;
at least one inner wall, the inner wall sealed to the interior wall along at least
one junction, the inner wall and the interior wall separated by a distance and substantially
defining a liquid-impermeable gap; an aperture in the at least one inner wall; a primary
vapor conduit positioned substantially within the access conduit, the primary vapor
conduit including a first end and a second end, the primary vapor conduit including
an integral vapor control unit, the first end sealed to the aperture in the at least
one inner wall; a vapor conduit junction attached to the second end of the primary
vapor conduit; at least two desiccant units external to the outer wall, each of the
desiccant storage units including at least one aperture; and at least two secondary
vapor conduits including a first end and a second end, the first end attached to the
vapor conduit junction, the second end attached to an aperture in a desiccant unit,
and each of the at least two secondary vapor conduits including an externally-operable
valve.
[0007] The foregoing summary is illustrative only and is not intended to be in any way limiting.
In addition to the illustrative aspects, embodiments, and features described above,
further aspects, embodiments, and features will become apparent by reference to the
drawings and the following detailed description.
BRIEF DESCRIPTION OF THE FIGURES
[0008]
FIG. 1 is a schematic of a substantially thermally sealed storage container from an external
view.
FIG. 2 is a schematic of a substantially thermally sealed storage container illustrated
in cross-section.
FIG. 3 illustrates aspects of a substantially thermally sealed storage container.
FIG. 4 depicts a schematic of a substantially thermally sealed storage container illustrated
in cross-section.
FIG. 5 shows a schematic of a substantially thermally sealed storage container illustrated
in cross-section.
FIG. 6 illustrates a schematic of a substantially thermally sealed storage container illustrated
in cross-section.
FIG. 7 depicts a schematic of a substantially thermally sealed storage container illustrated
in cross-section.
FIG. 8 shows a schematic of a substantially thermally sealed storage container illustrated
in cross-section.
FIG. 9 is a schematic of a substantially thermally sealed storage container from an external
view.
FIG. 10 illustrates aspects of a vapor control unit positioned between a first and second
vapor conduit.
FIG. 11A illustrates aspects of a vapor control unit positioned between a first and second
vapor conduit.
FIG. 11B illustrates aspects of a vapor control unit positioned between a first and second
vapor conduit.
DETAILED DESCRIPTION
[0009] In the following detailed description, reference is made to the accompanying drawings,
which form a part hereof. In the drawings, similar symbols typically identify similar
components, unless context dictates otherwise.
[0010] Substantially thermally sealed storage containers described herein include controlled
evaporative cooling systems, integral to the containers, which are calibrated to maintain
the interior storage regions within a predetermined temperature range over a period
of time, measured in days or weeks. In some embodiments, the evaporative cooling system
is calibrated to maintain the interior storage region in a predetermined temperature
range between 0 degrees Centigrade and 10 degrees Centigrade. In some embodiments,
the evaporative cooling system is calibrated to maintain the interior storage region
in a predetermined temperature range between 2 degrees Centigrade and 8 degrees Centigrade.
In some embodiments, the container requires no external power to operate. In some
embodiments, the container requires minimal power to operate the control of the rate
of evaporative cooling, such as a power requirement that is less than the power requirements
of a standard refrigeration unit. In some embodiments, the integral evaporative cooling
system within the container can be recharged, repaired or refreshed to allow reuse
of the container multiple times.
[0011] The illustrative embodiments described in the detailed description, drawings, and
claims are not meant to be limiting. Other embodiments may be utilized, and other
changes can be made, without departing from the spirit or scope of the subject matter
presented here. The use of the same symbols in different drawings typically indicates
similar or identical items unless context dictates otherwise.
[0012] Figure 1 shows a particular perspective of a substantially thermally sealed storage
container 100, according to an embodiment. The substantially thermally sealed storage
container 100 illustrated in Figure 1 is shown from an external viewpoint. The substantially
thermally sealed storage container 100 includes an outer wall 150. The entire container
is stabilized in an upright position by a base region 160. A single access conduit
130 is positioned at a region of the substantially thermally sealed storage container
100 that will be the uppermost region of the container during normal use. As used
herein, a "conduit" refers to a structure with a hollow interior and at least two
apertures at distal ends, such as a pipe, a tube or a duct. In some embodiments, the
interior hollow of a conduit has a substantially round cross-section. In some embodiments,
the interior hollow of a conduit has a cross-section that is substantially rectangular,
elliptical, or irregularly shaped. The conduit 130 includes an outer wall 110 that
substantially defines the exterior of the conduit 130. A seal 135 is positioned at
the terminal end of the conduit 130, the seal 135 positioned and fabricated to prevent
gas leakage into any interior region of the conduit 130 structure from the adjacent
external region.
[0013] A first vapor conduit 180 traverses the single access conduit 130 from a region interior
to the container 100 to a region exterior to the container 100. A vapor control unit
140 is connected, with a gas-impermeable seal, to the end of the first vapor conduit
180 exterior to the container 100. For example, in some embodiments the first and
second vapor conduits and the vapor control unit 140 are fabricated from a metal,
such as aluminum or stainless steel, and the vapor control unit and one or more vapor
conduits are welded together to form a gas-impermeable seal. The vapor conduit 180
includes another, interior end, which is positioned within the container and, therefore,
is not visible in the external view shown in Figure 1.
[0014] The vapor control unit 140 traverses the diameter of the adjacent end of the first
vapor conduit 180 as well as the adjacent end of the second vapor conduit 185. The
vapor control unit 140 controllably increases and decreases the interior dimensions
of a conduit internal to the vapor control unit 140, which serves to alter the rate
of vapor flow through the vapor control unit 140 and, therefore, between the first
vapor conduit 180 and the second vapor conduit 185. See: "Calculating Pipe Sizes &
Pressure Drops in Vacuum Systems," Section 9- Technical Reference, Rietschle Thomas
Company, which is incorporated by reference. The conduit internal to the vapor control
unit 140 has a first end, which is sealed to the adjacent end of the first vapor conduit
180, and a second end, which is sealed to the adjacent end of the second vapor conduit
185. The vapor control unit 140 includes at least one valve positioned to regulate
vapor and gas flow through the internal conduit of the vapor control unit 140. The
at least one valve is connected to a controller which regulates the opening and closing
of the valve, and therefore the internal diameter of the internal conduit of the vapor
control unit 140. The controller is connected to a sensor within the container 100.
See Figures 4, 5 and 6.
[0015] In some embodiments, the vapor control unit 140 includes a visible indicator of information
from the controller on the outside of the vapor control unit 140. For example, in
some embodiments the vapor control unit 140 includes on its exterior a dial connected
to the controller, the dial configured to indicate the temperature reading from the
sensor. For example, in some embodiments the vapor control unit 140 includes on its
exterior a light connected to the controller, wherein the controller turns the light
on and off in combination with sending a control signal to the valve within the vapor
control unit 140. For example, in some embodiments the vapor control unit 140 includes
on its exterior a light connected to the controller, wherein the controller turns
the light on and off in response to data from a pressure sensor attached to the controller.
For example, the controller can include circuitry that initiates the light to turn
on when information from the pressure sensor indicates that the pressure inside the
evaporative cooling system is within a preset range (
e.g. to indicate to a user that the internal gas pressure is within a preset acceptable
operating range, and therefore is operational, or to indicate to a user that the internal
gas pressure is outside of the preset acceptable operating range, and therefore requires
maintenance).
[0016] A second vapor conduit 185 is connected, with a gas-impermeable seal, to the vapor
control unit 140 at a position distal to the connection with the first vapor conduit
180. The connection with the vapor control unit 140 traverses the diameter of a first
end of the second vapor conduit 185. The second conduit 185 includes a second end,
which is connected to a desiccant unit 170 at a region surrounding an aperture in
the desiccant unit 170 with a gas-impermeable seal. For example, in some embodiments
the desiccant unit 170 and the second vapor conduit 185 are fabricated from a metal,
such as aluminum or stainless steel, and the desiccant unit 170 and the second vapor
conduit 185 are welded together to create a gas-impermeable seal. The desiccant unit
170 is attached to an exterior surface of the container 100. The desiccant unit 170
includes an outer wall encircling a hollow interior and forming an internal region
that is both gas- and liquid-impermeable.
See Figures 3, 4, 5 and 6.
[0017] In some embodiments, the desiccant unit 170 includes a power unit 190. For example,
the power unit 190 can include a plug-in to an AC or DC power source. For example,
the power unit 190 can include a solar panel positioned to collect solar energy from
a region external to the container. For example, the power unit 190 can include a
battery. In some embodiments, a battery is rechargeable. In some embodiments, a battery
can be removed and replaced.
[0018] In some embodiments, a container 100 includes one or more access ports 125, 120.
The access ports 125, 120 are configured to permit access to interior regions of the
container 100. In some embodiments, one or more access ports 125, 120 are sealed with
a gas-impermeable seal during manufacture of the container 100 and not intended for
further use. In some embodiments, the access ports 125, 120 are sealed with a gas-impermeable
seal during manufacture of the container 100 but configured for reopening during recharge,
repair or refreshment of the container 100 over time and between periods of use of
the container 100.
[0019] A substantially thermally sealed storage container 100 is fabricated from materials
with sufficient strength and durability to be transported and reused over time. The
substantially thermally sealed storage container 100 is constructed from materials
that are resistant to corrosion in the presence of the specific liquid(s) and desiccant
material(s) utilized in a specific embodiment. The substantially thermally sealed
storage container 100 is constructed from materials of sufficient durability, strength
and toughness for transport, use, and reuse in a given embodiment. For example, the
outer wall 150 of the container, the outer wall 110 of the conduit 130, the first
and second vapor conduits 180, 185 and the outer wall of the desiccant unit 170 can
be fabricated from a metal, such as stainless steel or aluminum. In some embodiments,
the container is fabricated from a diversity of materials, one or more composite,
and/or alloys. In some embodiments, the container is partially fabricated from a polycarbonate
plastic. Some embodiments include a substantially evacuated space within the container
100 structure, and in such embodiments the components of the container 100 that are
positioned adjacent to the substantially evacuated space within the container 100
are selected for sufficient durability, strength and toughness for the expected use
of the container 100 as well as for low outgassing properties into the substantially
evacuated space within the container 100. For example, in some embodiments the container
100 includes substantially evacuated space within the container 100 with a gas pressure
less than approximately 1x10
-2 torr, less than 5x10
-3 torr, less than 5x10
-4 torr, less than 5x10
-5 torr, less than 5x10
-6 torr or less than 5x10
-7 torr.
[0020] Figure 2 depicts a cross-section view of a substantially thermally sealed storage
container 100. The view illustrated in Figure 2 is a vertically bisected container
illustrating aspects of the container 100, including aspects of the interior. The
container includes an outer wall 150 and an interior wall 200. The outer wall 150
substantially defines the substantially thermally sealed storage container 100. The
outer wall 150 of the container substantially defines a single outer wall 150 aperture
at the top and center of the container 100. The interior wall 200 is a substantially
similar shape as the outer wall 150, but sized to fit within the outer wall 150. The
inner wall 150 includes an aperture positioned at a corresponding location to the
aperture in the outer wall 150.
[0021] The interior wall 200 and the outer wall 150 are separated by a distance and together
substantially define a gas-sealed gap 210 in the interior of the container 100. The
gas-sealed gap 210 can include a gas pressure significantly below atmospheric pressure.
The gas-sealed gap 210 can include substantially evacuated space. Some embodiments
include at least one section of ultra-efficient insulation material disposed within
the gas-sealed gap 210 between the interior wall 200 and the outer wall 150. The gas-sealed
gap 210 can include both ultra-efficient insulation material and a gas pressure significantly
below atmospheric pressure. For example, in some embodiments the gas-sealed gap 210
includes substantially evacuated space having a pressure less than or equal to 1x10
-2 torr. For example, in some embodiments the gas-sealed gap 210 includes substantially
evacuated space having a pressure less than or equal to 5x10
-4 torr. For example, in some embodiments the gas-sealed gap 210 includes substantially
evacuated space having a pressure less than or equal to 1x10
-2 torr in the gas-sealed gap 210. For example, in some embodiments the gas-sealed gap
210 includes substantially evacuated space having a pressure less than or equal to
5x10
-4 torr in the gas-sealed gap 210. In some embodiments, the gas-sealed gap 210 includes
substantially evacuated space having a pressure less than 1x10
-2 torr, for example, less than 5x10
-3 torr, less than 5x10
-4 torr, less than 5x10
-5 torr, 5x10
-6 torr or 5x10
-7 torr. For example, in some embodiments the gas-sealed gap 210 includes a plurality
of layers of multilayer insulation material and substantially evacuated space having
a pressure less than or equal to 1x10
-2 torr. For example, in some embodiments the gas-sealed gap 210 includes a plurality
of layers of multilayer insulation material and substantially evacuated space having
a pressure less than or equal to 5x10
-4 torr.
[0022] The term "ultra efficient insulation material," as used herein, can include one or
more type of insulation material with extremely low heat conductance and extremely
low heat radiation transfer between the surfaces of the insulation material. The ultra
efficient insulation material can include, for example, one or more layers of thermally
reflective film, high vacuum, aerogel, low thermal conductivity bead-like units, disordered
layered crystals, low density solids, or low density foam. In some embodiments, the
ultra efficient insulation material includes one or more low density solids such as
aerogels, such as those described in, for example:
Fricke and Emmerling, Aerogels- preparation, properties, applications, Structure and
Bonding 77: 37-87 (1992); and
Pekala, Organic aerogels from the polycondensation of resorcinol with formaldehyde,
Journal of Materials Science 24: 3221-3227 (1989), which are each herein incorporated by reference. As used herein, "low density"
can include materials with density from about 0.01 g/cm
3 to about 0.10 g/cm
3, and materials with density from about 0.005 g/cm
3 to about 0.05 g/cm
3. In some embodiments, the ultra efficient insulation material includes one or more
layers of disordered layered crystals, such as those described in, for example:
Chiritescu et al., Ultralow thermal conductivity in disordered, layered WSe2 crystals,
Science 315: 351-353 (2007), which is herein incorporated by reference. In some embodiments, the ultra efficient
insulation material includes at least two layers of thermal reflective film separated,
for example, by at least one of: high vacuum, low thermal conductivity spacer units,
low thermal conductivity bead like units, or low density foam. In some embodiments,
the ultra efficient insulation material can include at least two layers of thermal
reflective material and at least one spacer unit between the layers of thermal reflective
material. For example, the ultra-efficient insulation material can include at least
one multiple layer insulating composite such as described in
U.S. Patent 6,485,805 to Smith et al., titled "Multilayer insulation composite," which is herein incorporated by reference.
For example, the ultra-efficient insulation material can include at least one metallic
sheet insulation system, such as that described in
U.S. Patent 5,915,283 to Reed et al., titled "Metallic sheet insulation system," which is herein incorporated by reference.
For example, the ultra-efficient insulation material can include at least one thermal
insulation system, such as that described in
U.S. Patent 6,967,051 to Augustynowicz et al., titled "Thermal insulation systems," which is herein incorporated by reference.
For example, the ultra-efficient insulation material can include at least one rigid
multilayer material for thermal insulation, such as that described in
U.S. Patent 7,001,656 to Maignan et al., titled "Rigid multilayer material for thermal insulation," which is herein incorporated
by reference.
[0023] In some embodiments, an ultra efficient insulation material includes at least one
material described above and at least one superinsulation material. As used herein,
a "superinsulation material" can include structures wherein at least two floating
thermal radiation shields exist in an evacuated double-wall annulus, closely spaced
but thermally separated by at least one poor-conducting fiber-like material.
[0024] In some embodiments, one or more sections of the ultra efficient insulation material
includes at least two layers of thermal reflective material separated from each other
by magnetic suspension. The layers of thermal reflective material can be separated,
for example, by magnetic suspension methods including magnetic induction suspension
or ferromagnetic suspension. For more information regarding magnetic suspension systems,
see
Thompson, Eddy current magnetic levitation models and experiments, IEEE Potentials,
Feb/March 2000, 40-44, and
Post, Maglev: a new approach, Scientific American, January 2000, 82-87, which are each incorporated herein by reference. Ferromagnetic suspension can include,
for example, the use of magnets with a Halbach field distribution. For more information
regarding Halbach machine topologies and related applications, see
Zhu and Howe, Halbach permanent magnet machines and applications: a review, IEE Proc.-Electr.
Power Appl. 148: 299-308 (2001), which is herein incorporated by reference.
[0025] Also as shown in Figure 2, a connector 250 is positioned to form part of the access
conduit 130 between the outer wall aperture and the interior wall aperture. For example,
a connector can be formed as a substantially cylindrical structure corresponding to
the shape of the outer wall 110 of the access conduit 130, with a smaller diameter
than the outer wall 110 of the access conduit 130. A seal 240 attaches the external
surface of the connector 250 with the region of the interior wall 200 adjacent to
the aperture. A seal 230 attaches the external surface of the connector 250 with the
region of the outer wall 150 adjacent to the aperture. In the region of the container
100 external to the outer wall 150, the outer wall 110 of the conduit 130 is positioned
substantially parallel to the connector 250, with a gap between the outer wall 110
of the conduit 130 and the connector 250. The seal 135 is positioned to create a gas-impermeable
barrier between the outer wall 110 of the access conduit 130 and the connector 250.
The seal 135 can be formed by a material suitable for a particular embodiment, such
as a weld, a crimp and fold, or an additional component sealed to both the outer wall
110 of the conduit 130 and to the connector 250 to form the seal 135. At the end of
the conduit 130 distal to the seal 135, the end of the conduit 130 substantially defines
a single access aperture to a substantially thermally sealed storage region 220 within
the container 100. The interior 290 of the conduit 130, therefore, forms an access
region for the interior of the storage region 220 of the container 100.
[0026] In some embodiments, the access conduit 130 forms an elongated thermal pathway between
the single access aperture to the thermally-controlled storage region 220 and an exterior
region of the container 100. For example, the access conduit 130 can be of sufficient
length to minimize air passage, and therefore thermal transfer, between the thermally-controlled
storage region 220 and an exterior region of the container 100. For example, the access
conduit 130 can be configured to minimize thermal transfer between the interior wall
200, the inner wall 260 and an exterior region of the container 100. For example,
the access conduit 130 can include materials and/or structure configured to minimize
thermal transfer between the interior wall 200, the inner wall 260 and an exterior
region of the container 100. Some embodiments include a corrugated structure forming
an elongated thermal pathway between the single access aperture to the thermally-controlled
storage region 220 and an exterior region of the container 100. For example, the connector
250 of the access aperture can be formed with a pleat structure, with the folds substantially
perpendicular to the length of the access conduit 130.
[0027] The container 100 illustrated in Figure 2 includes a substantially thermally sealed
storage region 220 within the interior of the container 100. In some embodiments,
a substantially thermally sealed storage container includes a plurality of storage
regions. For example, a substantially thermally sealed storage container can include
a first storage region substantially separated with an internal divider from a second
storage region. For example, a substantially thermally sealed storage container can
include, in some embodiments, a first storage region maintained at a first temperature,
and a second storage region maintained at a second temperature. See, for example,
Figures 7 and 8 as well as their associated text. In the embodiment illustrated in
Figure 3, the substantially thermally sealed storage region is a uniform space. Some
embodiments include a substantially thermally sealed storage region that has structures
for the storage of specific materials. For example, a substantially thermally sealed
storage region within a container can be calibrated to maintain an internal temperature
between 0 degrees Centigrade and 10 degrees Centigrade, and include one or more storage
structures of a size, shape and configuration to hold medicinal vials, such as vaccine
vials. For example, a substantially thermally sealed storage region within a container
can be calibrated to maintain an internal temperature between 2 degrees Centigrade
and 8 degrees Centigrade, and include one or more storage structures of a size, shape
and configuration to hold medicinal vials, such as vaccine vials.
[0028] As described herein, a substantially thermally sealed storage container includes
a storage region 220 that is substantially thermally sealed and also temperature controlled
through the evaporative cooling system integral to the container. The combination
of the thermal properties of a specific embodiment of a container along with the characteristics
of an integral evaporative cooling system result in a substantially thermally sealed
storage region that is controlled to maintain temperatures within the substantially
thermally sealed storage region within a predetermined temperature range. For example,
in some embodiments a substantially thermally sealed storage container is fabricated
with a heat transfer of approximately 5 W between the exterior of the container and
the interior of the substantially thermally sealed storage region. In such an embodiment,
desiccant units primarily including calcium chloride (CaCl) and an evaporative liquid
primarily including water can be utilized with a vapor control system to maintain
the interior of the substantially thermally sealed storage region in a temperature
range between 0 degrees Centigrade and 10 degrees Centigrade for a period of weeks.
For example, the interior of the substantially thermally sealed storage region can
be maintained in a temperature range between 2 degrees Centigrade and 8 degrees Centigrade
for at least 30 days in such a container.
[0029] In the embodiment illustrated in Figure 2, the container 100 includes two access
ports, 120, 125. Each of the access ports 120, 125 provides access to an interior
region of the container when required, such as during fabrication or refurbishment
of the container 100. The access ports can be utilized, for example, during fabrication
of the container 100 to establish a gas pressure within the gas-sealed gap 210 that
is lower than atmospheric pressure. For example, in the illustration shown in Figure
2, an access port 120 is substantially sealed but is positioned to have been useful
for the establishment of a gas pressure within the gas-sealed gap 210 that is lower
than atmospheric pressure during fabrication of the container. The container 100 shown
in Figure 2 also includes an access port 125 connected by a conduit 225 to a region
within the interior wall 200. This access port 125 is sealed during fabrication of
the container 100, but prior to sealing the access port 125 can be utilized to provide
access to the region within the interior wall 200. For example, the access port 125
can be used to position a liquid within the liquid-impermeable gap 265 during fabrication
of the container. In some embodiments, one or more access port 120, 125 can be configured
to be opened during refreshment, repair or recharging of the container 100 between
uses.
[0030] Figure 2 also illustrates that the container 100 includes an inner wall 260. The
inner wall 260 is sealed to the interior wall 200 along a junction defined by the
seal 240 with the connector 250 of the access conduit 130. The inner wall 260 and
the interior wall 200 are positioned and fabricated so as to be separated by a liquid-impermeable
gap 265. A surface of the inner wall 260 faces the liquid-impermeable gap 265, and
the opposing surface of the inner wall 260 faces the substantially thermally sealed
storage region 220 within the container. Although not illustrated in Figure 2, in
some embodiments the liquid-impermeable gap 265 contains an evaporative liquid, which
is a liquid with evaporative properties under the expected temperatures and gas pressures
of the liquid-impermeable gap 265 during use of the container 100. For example, in
some embodiments the liquid-impermeable gap 265 includes a partial gas pressure of
approximately 5% of atmospheric pressure external to the container, and the liquid
within the liquid-impermeable gap 265 includes water. For example, in some embodiments
the liquid-impermeable gap 265 includes a partial gas pressure of approximately 10
% of atmospheric pressure external to the container, and the liquid within the liquid-impermeable
gap 265 includes methanol. For example, in some embodiments the liquid-impermeable
gap 265 includes a partial gas pressure of approximately 15 % of atmospheric pressure
external to the container, and the liquid within the liquid-impermeable gap 265 includes
ammonia.
[0031] A vapor conduit 180 is positioned substantially within the interior region 290 of
the conduit 130. The vapor conduit 180 includes a first end and a second end. In the
view illustrated in Figure 2, only the first end is visible. The first end of the
vapor conduit 180 is sealed to an aperture in the inner wall 260. The second end of
the vapor conduit 180, which is not visible in Figure 2, is sealed to the vapor control
unit, and thereby creating a controllable vapor pathway to the interior of the desiccant
unit (not shown in Figure 2;
see Figure 1). The liquid impermeable gap 265 formed between the inner wall 260 and the
interior wall 200 is directly connected to the interior region 285 of the vapor conduit
180. The liquid impermeable gap 265 formed between the inner wall 260 and the interior
wall 200 is in vapor contact with the interior region 285 of the vapor conduit 180
so that vapor can freely pass from the liquid impermeable gap 265 through the vapor
conduit 180. The vapor can then pass through the vapor control unit when the attached
valve is in an open position, and to the interior of the desiccant unit (not shown
in Figure 2;
see Figure 1). The vapor conduit 180 is of a size and shape to permit free gas flow between
the interior of the desiccant unit and the liquid impermeable gap 265 when the valve
of the vapor control unit is in a fully open position. In some embodiments, the vapor
conduit 180 is a substantially round, tubular structure. In some embodiments, the
vapor conduit 180 is a substantially flattened structure. In some embodiments, the
vapor conduit 180 is a plurality of closely associated structures, e.g. a series of
substantially parallel tubular structures. The interior dimensions of the vapor conduit
180 vary depending on the size of the container 100, the liquid impermeable gap 265,
the vapor control unit, and the desiccant unit. The vapor conduit 180 is of a size
and shape to permit gas and vapor to flow freely and without substantial hindrance
between the liquid impermeable gap 265 and the desiccant unit when the valve of the
vapor control unit is in a fully open position.
[0032] Figure 3 illustrates aspects of an embodiment of a substantially thermally sealed
storage container 100 from an exterior viewpoint to the container, with a cross-section
view through a portion of the evaporative cooling unit. Figure 3 illustrates a substantially
thermally sealed storage container 100 including an access conduit 130. The outer
wall 110 of the access conduit 130 is sealed to an inner wall with a seal 135 at the
top edge of the access conduit 130. A vapor conduit 180 traverses through the access
conduit 130 from the interior of the container (not visible in Figure 3,
see, e.g. Figure 2) to a region adjacent to the outer wall 110 of the access conduit 130 and
the outer wall 150 of the container 100. Figure 3 illustrates a cross-section view
through the external portion of the first and second vapor conduits 180, 185, the
attached vapor control unit 140 and the desiccant unit 170.
[0033] As shown in Figure 3, the desiccant unit 170 includes an outer wall 320. The outer
wall 320 substantially defines the external boundaries of the desiccant unit 170.
The outer wall 320 is positioned adjacent to the outer wall 150 of the container 100.
The outer wall 320 includes an aperture, which is surrounded by the end of the second
vapor conduit 185 distal to the vapor control unit 140. The end of the second vapor
conduit 185 distal to the vapor control unit 140 is sealed to the surface of the outer
wall 320 of the desiccant unit 170 with a gas-impermeable seal. The desiccant unit
170 includes an interior space 300. The interior space 300 is contiguous with the
interior of the end of the vapor conduit 185 distal to the vapor control unit 140,
with free flow of gas between the interior space 300 of the desiccant unit 170 and
the interior of the adjacent vapor conduit 185. A plurality of units of desiccant
material 310 are positioned within the interior space 300 of the desiccant unit 170.
Although the units of desiccant material 310 are illustrated as a mass, in some embodiments
they may be arrayed in a regular pattern to promote maximum surface contact of the
desiccant material 310 with the gas within the interior space 300 of the desiccant
unit 170. In some embodiments, the units of desiccant material 310 include a structure
or a coating of a size and shape to promote gas circulation around each of the units
of desiccant material 310.
[0034] The outer wall 320 of the desiccant unit 170 can be fabricated from a variety of
materials, depending on the embodiment. The outer wall 320 can be fabricated from
a material with sufficient strength to retain its shape in the presence of an interior
space 300 gas pressure less than atmospheric pressure. For example, depending on the
embodiment, the outer wall 320 can be fabricated from stainless steel, aluminum, polycarbonate
plastic, glass, or other materials. In some embodiments, the desiccant unit 170 can
include an interior liner positioned adjacent to the outer wall 320. For example,
an interior liner can be configured to protect the material of the outer wall 320
from any possible corrosion from the desiccant material 310 utilized in a specific
embodiment.
[0035] The units of desiccant material 310 are fabricated from at least one material with
desiccant properties, or the ability to remove liquid from a liquid vapor in the surrounding
space. Units of desiccant material 310 can operate, for example, through the absorption
or adsorption of water from the water vapor in the surrounding space. One or more
units of desiccant material 310 selected will depend on the specific embodiment, particularly
the volume required of a sufficient quantity of desiccant material to absorb liquid
for the estimated time period required to operate a specific evaporative cooling unit
integral to a specific container. In some embodiments, the units of desiccant material
310 selected will be a solid material under routine operating conditions. One or more
units of desiccant material 310 can include non-desiccant materials, for example binding
materials, scaffolding materials, or support materials. One or more units of desiccant
material 310 can include desiccant materials of two or more types. The containers
described herein are intended for use with evaporative cooling for days or weeks,
and sufficient desiccant material and corresponding liquid is included for those time
periods in any given embodiment. For more information on liquid- desiccant material
pairs, see:
Saha et al., "A New Generation Cooling Device Employing CaCl2-in-silica Gel-water
System," International Journal of Heat and Mass Transfer, 52: 516-524 (2009), which is incorporated by reference. The selection of one or more desiccant materials
310 for use in a specific embodiment will also depend on the target cooling temperature
range in a specific embodiment. For example, in some embodiments the desiccant material
can include calcium carbonate. For example, in some embodiments, the desiccant material
can include lithium chloride. For example, in some embodiments, the desiccant material
can include liquid ammonia. For example, in some embodiments, the desiccant material
can include zeolite. For example, in some embodiments, the desiccant material can
include silica. More information regarding desiccant materials is available in:
Dawoud and Aristov, "Experimental Study on the Kinetics of Water Vapor Sorption on
Selective Water Sorbents, Silica Gel and Alumina Under Typical Operating Conditions
of Sorption Heat Pumps," International Journal of Heat and Mass Transfer, 46: 273-281
(2004);
Conde-Petit, "Aqueous Solutions of Litium and Calcium Chlorides: - Property Formulations
for Use in Air Conditioning Equipment Design," M. Conde Engineering, (2009); "
Zeolite/Water Refrigerators," BINE Informationsdienst, projektinfo 16/10; "
Calcium Chloride Handbook: A Guide to Properties, Forms, Storage and Handling," Dow
Chemical Company, (August, 2003); "
Calcium Chloride, A Guide to Physical Properties," Occidential Chemical Corporation,
Form No. 173-01791-0809P&M; and
Restuccia et al., "Selective Water Sorbent for Solid Sorption Chiller: Experimental
Results and Modelling," International Journal of Refrigeration 27:284-293 (2004), which are each incorporated herein by reference. In some embodiments, a desiccant
material is considered non-toxic under routine handling precautions. The selection
of a desiccant material is also dependent on any exothermic properties of the material,
in order to retain the thermal properties of the entire container desired in a specific
embodiment.
[0036] Figure 3 illustrates aspects of a vapor control unit 140 attached to the first vapor
conduit 180 adjacent to the interior of the container and the second vapor conduit
185 attached to the desiccant unit 170. In some embodiments, a vapor control unit
is integral to a vapor conduit. In some embodiments, a vapor control unit 140 includes
a power source, such as a battery, operably connected to one or more other components.
In some embodiments, a vapor control unit 140 does not include an electric power source,
for example a vapor control unit can be mechanically powered.
[0037] The vapor control unit 140 includes a valve 345. The valve 345 is configured to reversibly
impede the flow of gas, including vapor, through the vapor control unit 140, and therefore,
between the first vapor conduit 180 and the second vapor conduit 185. The valve 345
can be a plurality of valves, for example a plurality of valves in series along a
single conduit within the vapor control unit. The valve 345 can be a plurality of
valves, for example a plurality of valves each attached to a separate conduit within
the vapor control unit 140, each of the plurality of valves reversibly controllable
to open and close the attached conduit. In some embodiments, the valve 345 includes
at least one movable valve with at least a first position substantially closing the
at least one movable valve to vapor flow through the at least one movable valve, and
a second position substantially opening the at least one movable valve to vapor flow
through the at least one movable valve. Some embodiments include a movable valve with
at least a first position substantially closing vapor flow through the vapor control
unit, at least one second position substantially permitting flow of vapor through
the vapor control unit to the maximum permitted by the diameter of the vapor control
unit, and at least one third position restricting vapor flow through the vapor control
unit. In some embodiments, the valve 345 includes a mechanical valve. In some embodiments,
the valve 345 includes a gate valve. In some embodiments, the valve 345 includes rotary
valve, such as a butterfly valve. In some embodiments, the valve 345 includes a ball
valve. In some embodiments, the valve 345 includes a piston valve. In some embodiments,
the valve 345 includes a globe valve. In some embodiments, the valve 345 includes
a gate valve. In some embodiments, the valve 345 includes In some embodiments, the
valve 345 includes a plurality of valves operating in tandem with each other. In some
embodiments, the valve 345 includes an electronically-controlled valve. In some embodiments,
the valve 345 includes a mechanically-controlled valve. The selection of the valve
345 in a given embodiment depends on, for example, cost, weight, the sealing properties
of a type of valve, the estimated failure rate of a type of valve, the durability
of a type of valve under expected use conditions, and the power consumption requirements
for a type of valve. The selection of the valve 345 in a given embodiment also depends
on the level of restriction of gas flow, including vapor flow, through a particular
type of valve when the valve is in a fully open position.
[0038] Also included within the vapor control unit 140 is a controller 360. The controller
360 is operably connected to the valve 345. The valve 345 is operably connected to
the controller 360, and configured to be responsive to the controller 360. The controller
360 is configured to respond to one or more temperature sensors 350 by acting to alter
the position of the valve 345. The controller 360 is configured to respond in a specific
manner depending on the temperature detected by the temperature sensor 350. For example,
a controller 360 can be configured to respond to a temperature above a threshold temperature
by acting to cause a complete opening or closure of the valve 345. For example, a
controller 360 can be configured to respond to a temperature below a threshold temperature
by acting to cause closure of the valve 345. For example, a controller 360 can be
configured to respond to a temperature within a temperature range by acting to cause
partial opening of the valve 345. For example, a controller 360 can be configured
to respond to a temperature within a temperature range by acting to cause partial
closure of the valve 345. Although a connection is not illustrated in Figure 3 between
the controller 360 and the valve 345, an operable connection exists between the controller
360 and the valve 345. For example, in some embodiments, the operable connection includes
a connector configured to transmit physical pressure, such as a rod or cog. For example,
in some embodiments, the operable connection includes a connector configured to transmit
electronically, such as through a wire or wireless connection, such as through an
IR or short wavelength radio transmission (e.g. Bluetooth).
[0039] Different types of controllers can be utilized, depending on the embodiment. For
example, a controller 360 can be an electronic controller. In some embodiments, a
controller 360 is an electronic controller that accepts data from a plurality of temperature
sensors 350 and initiates action by the valve 345 after determination of an average
temperature from the accepted data. An electronic controller can include logic and/or
circuitry configured to create a bounded or threshold system around a particular range
of values from one or more sensors, such as a bounded system around a range of 3 degrees
Centigrade to 7 degrees Centigrade, responsive to data from one or more temperature
sensors. For example, in some embodiments a controller 360 is a "bang-bang" controller
operably attached the valve 345 and configured to be responsive to a temperature sensor
350 that includes a thermocouple. An electronic controller can include logic and/or
circuitry configured to create a feedback system around a particular range of values
from one or more sensors, such as a feedback system around a range of 2 degrees Centigrade
to 8 degrees Centigrade, responsive to data from one or more temperature sensors.
For example, in some embodiments a controller 360 is a mechanical controller. For
example, in some embodiments the controller 360 is attached to a Bourdon tube operably
connected to the valve 345, and configured to respond to changes in vapor pressure
associated with temperature differences. Embodiments including a mechanical controller
can also include a connector that forms an operable connection between the controller
and the valve that is a mechanical connector. For example, a mechanical connector
can be a connector configured to transmit physical pressure, such as through operation
of one or more rods or cogs, between the controller and the valve.
[0040] In the embodiment shown in Figure 3, a sensor 350 is positioned within the vapor
conduit 180 at a position adjacent to the end of the vapor conduit 180 within the
interior of the container 100. In some embodiments, a sensor 350 is configured to
detect the temperature of the gas present in the interior of the vapor conduit 180.
In some embodiments, a sensor 350 is configured to detect the partial pressure of
the gas present in the interior of the vapor conduit 180. The sensor 350 illustrated
in Figure 3 is positioned adjacent to the vapor control unit 140 at the side of the
vapor control unit 140 adjacent to the interior of the container 100. In some embodiments,
a sensor is positioned within the vapor conduit 180 at a region within the conduit
130. In some embodiments, a sensor is positioned within the vapor conduit 180 at a
region within the interior of the container. In some embodiments, a sensor is positioned
within a liquid-impermeable gap adjacent to the substantially thermally sealed storage
region within the container 100, and configured to detect the temperature of gas or
liquid within that gap. Some embodiments include a plurality of sensors positioned
in series or parallel. A sensor 350 can include, for example, depending on the embodiment,
an electronic temperature sensor, a chemical temperature sensor, or a mechanical temperature
sensor. A sensor 350 can include, for example, a low-energy temperature sensor, such
as a Thermodo device (Robocat, Copenhagen, Denmark). A sensor 350 can include, for
example, depending on the embodiment, an electronic gas pressure sensor, or a mechanical
gas pressure sensor. A sensor 350 for measurement of gas pressure can include a Bourdon
tube. A sensor 350 for measurement of gas pressure can include a diaphragm-based gas
pressure sensor. A sensor 350 for measurement of temperature can include, for example,
a thermocouple. A sensor 350 can include a combined sensor of gas pressure, gas composition,
and temperature. For example, a sensor 350 can include a NODE device, (Variable Technologies,
Chattanooga TN). In some embodiments, a sensor can include a power source, such as
a battery.
[0041] Some embodiments include a sensor that is a temperature sensor. A temperature sensor
can include, for example, a mechanical temperature sensor. A temperature sensor can
include, for example, an electronic temperature sensor. By way of example, some embodiments
include a sensor that is a temperature sensor including one or more of: a thermocouple,
a bimetallic temperature sensor, an infrared thermometer, a resistance thermometer,
or a silicon bandgap temperature sensor.
[0042] Some embodiments include a sensor that is a gas pressure sensor. A gas pressure sensor
can include, for example, a mechanical gas pressure sensor, such as a Bourdon tube.
A gas pressure sensor can include, for example, an electronic gas pressure sensor.
By way of example, some embodiments include a sensor that is a vacuum sensor. For
example, the interior of a vapor conduit can be substantially evacuated, or at a low
gas pressure relative to atmospheric pressure, before use of a container and then
the vacuum reduced during evaporation from the evaporative liquid. Data from a vacuum
sensor can, therefore, be indicative of the rate of evaporation, or the total level
of evaporation of the evaporative liquid within the container. In some embodiments,
a gas pressure sensor can include a piezoresistive strain gauge, a capacitive gas
pressure sensor, or an electromagnetic gas pressure sensor.
[0043] A sensor 350 can transmit data to a controller 360 that is an electronic controller
via a wire 370, as illustrated in Figure 3. However, depending on the embodiment,
different types of connections between the controller 360, a sensor 350 and a valve
345 are possible. For example, in some embodiments, a sensor includes a thermocouple
configured to put physical pressure on a mechanical controller that transmits that
physical pressure to a control element of a valve to result in the opening or closing
of the valve. For example, in some embodiments, a sensor includes an electronic temperature
sensor that sends data regarding detected temperature to an electronic controller
via a wire or wireless connection, such as through an IR or short wavelength radio
transmission (e.g. Bluetooth).
[0044] In embodiments including an electronic controller, the electronic controller receives
data from one or more sensors, and determines if the detected values are outside or
inside of a predetermined range. Depending on the determination, the electronic controller
can initiate the valve to open or close to return the temperature or pressure to the
predetermined range of values. For example, in some embodiments, if the electronic
temperature sensor sends a signal including temperature data at 9 degrees Centigrade,
the controller will determine that the received temperature data is outside of the
predetermined range of 3-7 degrees Centigrade. In response to the determination, the
controller will send a signal to a motor attached to a valve within the vapor control
unit, the signal of a type to initiate the motor to open the valve. As another example,
in some embodiments, if the electronic temperature sensor sends a signal including
temperature data at 1 degree Centigrade, the controller will determine that the received
temperature data is outside of the predetermined range of 3-7 degrees Centigrade.
In response to the determination, the controller will send a signal to a motor attached
to a valve within the vapor control unit, the signal of a type to initiate the motor
to close the valve.
[0045] An electronic temperature sensor can send data at a plurality of data points. In
some embodiments, an electronic controller can accept a plurality of temperature data
points from one or more temperature sensor, and calculate a temperature result, such
as an average temperature, or a mean temperature, from the accepted data. The electronic
controller can then determine if the temperature result is outside or inside of a
predetermined temperature range. For example, in some embodiments, a predetermined
temperature range is between 0 degrees and 10 degrees Centigrade. For example, in
some embodiments, a predetermined temperature range is between 2 degrees and 8 degrees
Centigrade. For example, in some embodiments, a predetermined temperature range is
between 0 degrees and 5 degrees Centigrade. For example, in some embodiments, a predetermined
temperature range is between 5 degrees and 15 degrees Centigrade. For example, in
some embodiments, a predetermined temperature range is between 5 degrees and -5 degrees
Centigrade. For example, in some embodiments, a predetermined temperature range is
between -15 degrees and -25 degrees Centigrade. For example, in some embodiments,
a predetermined temperature range is between -25 degrees and -35 degrees Centigrade.
[0046] In some embodiments, an electronic controller can accept a plurality of gas pressure
data points from one or more gas pressure sensors, and calculate a gas pressure result,
such as an average gas pressure, or a mean gas pressure, from the accepted data. The
electronic controller can then determine if the gas pressure result is outside or
inside of a predetermined gas pressure range for the specific container. For example,
gas pressure out of a specific, predetermined range can indicate an excess of evaporation
of the liquid, resulting in excess evaporative cooling for the specific container.
For example, gas pressure out of a specific, predetermined range can indicate a lack
of absorption or adsorption by the desiccant material, indicating that the desiccant
material needs to be refreshed or renewed. The gas pressure range is relative to the
internal dimensions of the evaporative cooling unit, the conduits, the vapor control
unit and the desiccant unit for an embodiment. The gas pressure range is also relative
to the type of evaporative liquid, the type of desiccant material, and the predetermined
temperature range for cooling in an embodiment.
See: Dawoud and Aristov, "Experimental Study on the Kinetics of Water Vapor Sorption on
Selective Water Sorbents, Silica Gel and Alumina Under Typical Operating Conditions
of Sorption Heat Pumps," International Journal of Heat and Mass Transfer, 46: 273-281
(2004);
Marquardt, "Introduction to the Principles of Vacuum Physics," CERN Accelerator School,
(1999);
Kozubal et al., "Desiccant Enhanced Evaporative Air-Conditioning (DEVap): Evaluation
of a New Concept in Ultra Efficient Air Conditioning," NREL Technical Report NREL/TP-5500-49722
(January 2011);
Conde-Petit, "Aqueous Solutions of Litium and Calcium Chlorides: - Property Formulations
for Use in Air Conditioning Equipment Design," M. Conde Engineering, (2009); "
Zeolite/Water Refrigerators," BINE Informationsdienst, projektinfo 16/10; "
Calcium Chloride Handbook: A Guide to Properties, Forms, Storage and Handling," Dow
Chemical Company, (August, 2003); "
Introduction of Zeolite Technology into Refrigeration Systems: Layman's Report," Dometic
project LIFE04 ENV/LU/000829;
Rezk and Al-Dadah, "Physical and Operating Conditions Effects on Silica Gel/Water
Adsorption Chiller Performance," Applied Energy 89: 142-149 (2012);
Saha et al., "A New Generation Cooling Device Employing CaCl2-in-silica Gel-water
System," International Journal of Heat and Mass Transfer 52: 516-524 (2009); "
An Introduction to Zeolite Molecular Sieves," UOP Company Brochure 0702 A 2.5; and "
Vacuum and Pressure Systems Handbook," Gast Manufacturing, Inc., which are each incorporated by reference. An equation to calculate the pressure
loss in vacuum lines with water vapor is available from GEA Wiegand, a copy accessed
at the company website (http://produkte.gea-wiegand.de/GEA/GEACategory/139/index_en.html)
on March 13, 2013 is incorporated herein by reference.
[0047] An evaporatively-cooled container, such as those described herein, can be stored
for a period of time prior to use. In some embodiments, the container is configured
to be cooled with a heat sink material, such as ice, when such is available. The container
can also be used without a heat sink, such as an ice block, and cooled with the evaporative
cooling system when desired by a specific user. In some embodiments, the integral
evaporative cooling system can be left inactive for periods of time, such as during
storage of the container prior to or between uses, or when a heat sink material such
as ice is not available. During these periods of non-activity of the container, the
valve within the vapor control unit is left in a fully closed position, substantially
blocking vapor flow through the vapor conduit. When a period of evaporative cooling
is desired, a user can activate the evaporative cooling system of the container by
activating the controller and opening the valve within the vapor control unit. The
integral evaporative cooling system of the container will then begin to actively cool
the interior storage region for a period of time, the duration of which depends on
factors including the relative to the size of the container, the amount of liquid
available, the amount of desiccant material available, the target temperature range
for the storage region, and the thermal properties of the container. For example,
in an embodiment including approximately 1 liter of liquid water and 500 g of a desiccant
material including calcium chloride can maintain a temperature range between 0 and
10 degrees Centigrade for approximately 30 days in a storage region of a container
with no more than 5 W of heat leak from the storage region to the region external
to the container.
[0048] Figure 4 illustrates a cross-section view of a substantially thermally sealed storage
container 100. As shown in Figure 4, the substantially thermally sealed storage container
100 includes an outer assembly and an evaporative cooling assembly integral to the
container 100. The outer assembly includes one or more sections of ultra efficient
insulation material within the gap 210 between the outer wall 150 and the interior
wall 200 of the container, as well as between the outer wall 110 and the connector
250 of the conduit 130. In some embodiments, an ultra efficient insulation material
within the gap 210 can include, for example, multilayer insulation material (MLI)
surrounded by substantially evacuated space. In some embodiments, the gap 210 is gas-impermeable,
and includes substantially evacuated space. In some embodiments, the ultra efficient
insulation material within the gap 210 can include, for example, aerogel. The ultra
efficient insulation material substantially defines a thermally-controlled storage
region 220 and a single access conduit 130 to the thermally-controlled storage region
220. In some embodiments, the single access conduit includes a connector with a corrugated
structure forming an elongated thermal pathway. For example, in some embodiments,
the single access conduit includes a connector with a corrugated structure with a
plurality of pleat structures positioned essentially parallel to the plane formed
by the end of the conduit 130. The evaporative cooling assembly integral to the container
100 includes an evaporative cooling unit attached to a surface of the at least one
thermally controlled storage region 220, a desiccant unit 170 affixed to an external
surface of the container 100, and a first and second vapor conduit 180, 185. The first
vapor conduit 180 is attached at one end to the evaporative cooling unit, and at the
other end to the vapor control unit 140. The second vapor conduit 185 is attached
at one end to the desiccant unit, and at the other end to the vapor control unit 140.
[0049] In the embodiment illustrated in Figure 4, the evaporative cooling unit integral
to the container 100 includes a first wall formed by the interior wall 200 of the
container 100. The evaporative cooling unit integral to the container 100 also includes
a second, inner wall 260 which is sealed to the interior wall 200 of the container
100, forming a liquid-impermeable gap 265 between the walls 200, 260. In the view
illustrated, an evaporative liquid 400 is positioned within the liquid-impermeable
gap 265 between the walls 200, 260. The evaporative liquid 400 has a surface 410 that
is below the top of the liquid-impermeable gap 265, thereby providing non-liquid filled
space above the surface 410 of the evaporative liquid.
[0050] During fabrication of the container 100 in an embodiment such as illustrated in Figure
4, the liquid-impermeable gap 265 between the walls 200, 260, the interior of the
vapor conduit 285 and the interior space 300 of the desiccant unit 170 are evacuated,
for example with a vacuum pump. The vacuum pump can be attached, for example to an
access conduit 225 such as illustrated in Figure 2. After a predetermined gas pressure,
which is lower than atmospheric pressure, is achieved within the liquid-impermeable
gap 265 between the walls 200, 260, the interior of the vapor conduit 285 and the
interior space 300 of the desiccant unit 170, the combined spaces are sealed to form
a gas-impermeable combined interior space. For example, in some embodiments the combined
interior spaces are reduced to a gas pressure of no more than 20 torr. For example,
in some embodiments the combined interior spaces are reduced to a gas pressure of
no more than 10 torr. For example, in some embodiments the combined interior spaces
are reduced to a gas pressure of no more than 5 torr. For example, in some embodiments
the combined interior spaces are reduced to a gas pressure of no more than 1 torr.
The liquid-impermeable gap 265 between the walls 200, 260, the interior of the vapor
conduit 285 and the interior space 300 of the desiccant unit 170, therefore, form
an internal region of reduced gas pressure within the container 100. Due to the design
of the container and the integral evaporative cooling system, the gas that is present
within this internal region can flow freely between the liquid-impermeable gap 265,
the interior of the vapor conduit 285 and the interior space 300 of the desiccant
unit 170 when the valve 345 is in a fully open configuration.
[0051] During use of the container 100, the evaporative liquid 400 will evaporate at a rate
relative to the temperature of the evaporative liquid 400 and the vapor pressure of
the evaporative liquid 400 within the liquid-impermeable gap 265. The rate of evaporation
for any specific evaporative liquid at a specific time will occur relative to the
temperature of the evaporative liquid at the time, the partial pressure of the evaporative
liquid, as well as the physical properties of that specific liquid. For example, at
10 degrees Centigrade, the vapor pressure of water, based on its physical properties,
is approximately 9 torr. Therefore, when the temperature of the evaporative liquid
400 within the container is 10 degrees Centigrade, the liquid will tend to evaporate
as long as the vapor pressure within the adjacent liquid-impermeable gap 265 is less
than approximately 9 torr. As an additional example, the vapor pressure of water,
based on its physical properties, is approximately 6.8 torr at 5 degrees Centigrade.
Therefore, when the temperature of the evaporative liquid 400 within the container
is 5 degrees Centigrade, the liquid will tend to evaporate as long as the vapor pressure
within the adjacent liquid-impermeable gap 265 is less than approximately 6.8 torr.
For any given embodiment, the evaporation temperatures of the included evaporative
liquid at different internal vapor pressures can be calculated using standard equations
and the physical properties of the included evaporative liquid. Furthermore, as the
vapor pressure of the specific evaporative liquid utilized in an embodiment rises
within the adjacent liquid-impermeable gap 265, the evaporation rate and associated
evaporative cooling will diminish.
See, e.g. Rezk et al., "Physical and Operating Conditions Effects on Silica Gel/water Adsorption
Chiller Performance," Applied Energy 89: 142-149 (2012), which is incorporated by reference herein. This can be utilized to create an expected
lower cooling temperature boundary for a particular embodiment.
[0052] During use of the container 100, evaporation will cool the evaporative liquid 400
and the space of the liquid-impermeable gap 265 through the physical effect of evaporative
cooling.
See: Wang et al., "Study of a Novel Silica Gel-Water Adsorption Chiller. Part I. Design
and Performance Prediction," International Journal of Refrigeration 28: 1073-1083
(2005);
US Patent No. 6,584,797 "Temperature-Controlled Shipping Container and Method for Using Same," to Smith and
Roderick;
US Patent No. 6,688,132 "Cooling Device and Temperature-Controlled Shipping Container Using Same," to Smith
et al.;
US Patent No. 6,701,724 "Sorption Cooling Devices," to Smith et al.; and
US Patent No. 6,438,992 "Evacuated Sorbent Assembly and Cooling Device Incorporating Same," to Smith et al.,
which are each incorporated by reference herein.
See also: "Cool-System Presents: CoolKeg® The World's First Self-chilling Keg!" by Coolsystem
Company; Sketch of Larry D. Hall's Homemade Icyball; "Icyball is Practical Refrigerator
for Farm or Camp Use," advertisement; and the entry labeled "Steam Jet Cycle" from
www.machine-history.com, which are each incorporated by reference. When the evaporative
liquid 400 is at a lower temperature than the storage region 220, heat from the storage
region 220 will equilibrate through conduction through the inner wall 260 to the evaporative
liquid 400, thereby cooling the interior storage region 220. Since the liquid-impermeable
gap 265, the interior of the vapor conduit 285 and the interior space 300 of the desiccant
unit 170 include a contiguous, gas-sealed space when the valve 345 is in a fully open
position, the vapor phase of the evaporated liquid will disperse throughout the combined
spaces. When the vapor phase of the evaporated liquid comes into contact with the
desiccant material 310 in the desiccant unit 170, some of the liquid vapor will be
removed from the gas phase and become associated with the desiccant material 310 until
the desiccant material 310 is saturated with the evaporative liquid 400. The removal
of liquid vapor in the desiccant unit 170 will reduce the partial pressure of the
vapor phase of the evaporative liquid 400 within the entirety of the liquid-impermeable
gap 265, the interior of the vapor conduit 285 and the interior space 300 as long
as the valve 345 is in a fully open position. A reduced vapor pressure will create
further evaporative cooling within the liquid-impermeable gap 265. Control of the
movement of the vapor phase of the evaporative liquid 400 through the valve 345 controls
the amount of the vapor phase of the evaporative liquid 400 present within the interior
space 300 of the desiccant unit 170, and the associated reduction of partial pressure
of the vapor phase of the evaporative liquid within the liquid-impermeable gap 265.
By closing and opening the valve 345 in response to information from the sensor 350,
the controller 360 can act to control the rate of evaporation of the evaporative liquid
400 and the associated evaporative cooling of the storage region 220.
[0053] Different embodiments of an evaporative cooling unit integral to the container 100
include different types of evaporative liquids. In some embodiments, the liquid includes
water. In some embodiments, the liquid includes an alcohol, such as methanol or ethanol.
A specific evaporative liquid is selected based on the evaporation rate of the liquid
in the temperature ranges targeted by a specific embodiment, as well as the absorption
rate of the vapor phase of the evaporative liquid by the desiccant material utilized
in the embodiment. In any given embodiment, the evaporation rate of the evaporative
liquid is promoted by the desiccant material, which removes the liquid vapor from
the gas and promotes further evaporation of the evaporative liquid. In some embodiments,
for example, the evaporative liquid includes water, and the desiccant material includes
calcium chloride. Evaporation of the evaporative liquid induces a cooling effect on
the evaporative cooling unit affixed to the surface of the thermally controlled storage
region. The evaporation rate is controlled by action of the valve 345, as directed
by the controller 360 in response to data received from a sensor 350. In some embodiments,
the sensor 350 can provide data to the controller 360 through a wire connection 370.
For example, if the sensor 350 is a temperature sensor that provides a temperature
reading to the controller 360 that is above a predetermined level, the controller
360 can operate to affect an opening of the valve 345. For example, if the sensor
350 provides a temperature reading to the controller 360 that is below a predetermined
level, the controller 360 can operate to affect a closure of the valve 345. In some
embodiments, the controller 360 only operates to fully open or close the valve 345.
In some embodiments, the controller 360 can operate to partially open and/or partially
close the valve 345, creating intermediate control of the evaporative cooling by controllably
restricting the vapor passage through the valve 345. The ongoing detection of sensor
data combined with control of the valve, and the resulting control of the evaporation
rate of the evaporative liquid, provides control of the temperature within the storage
region 220 through thermal conduction between the storage region 220 and the adjacent
liquid-impermeable gap 265.
[0054] Figure 4 illustrates aspects of the desiccant unit 170, which is external to and
attached to the exterior of the container 100. Figure 4 depicts a plurality of units
of desiccant material 310 within the desiccant unit 170. A gas-filled space 300 provides
gas contact between the plurality of units of desiccant material 310 and the interior
of the adjacent end of the second vapor conduit 185. In some embodiments, the desiccant
unit 170 includes a vapor-sealed chamber including an interior desiccant region in
vapor contact with an interior region of the second vapor conduit 185. In some embodiments,
the desiccant unit 170 includes a vapor-impermeable region within the desiccant unit
170, the vapor-impermeable region in vapor contact with the interior of the second
vapor conduit 185.
[0055] Some embodiments also include a gas vent mechanism configured to allow gas with pressure
beyond a preset limit to vent externally from the desiccant unit 170. For example,
the wall 320 of the desiccant unit 170 can include a region configured to break when
the internal gas pressure rises above a threshold level. For example, the desiccant
unit 170 can include an additional valve connected to a region external to the desiccant
unit 170 and configured to open in response to excessive gas pressure within the gas-filled
space 300 of the desiccant unit 170. Some embodiments include a gas vent mechanism
configured to allow gas of a temperature beyond a preset limit to vent externally
from the desiccant unit 170. For example, a desiccant unit 170 can include a temperature
sensor, such as a thermocouple, within the gas-filled space 300 of the desiccant unit
170, the temperature sensor operably connected to a one-way valve configured to vent
gas from the gas-filled space 300 if the detected temperature is above a preset threshold.
[0056] The desiccant unit 170 is operably attached to the second vapor conduit 185 at one
end of the conduit. The second vapor conduit 185 is attached to the vapor control
unit 140 at the distal end of the conduit. The vapor control unit 140 is configured
to control vapor flow between the interior region 265 of the evaporative cooling unit
and the interior region 300 of the desiccant unit 170 through the first vapor conduit
180 and the second vapor conduit 185. As shown in Figure 4, in some embodiments the
first and second vapor conduits 185, 180 are configured as a tubular structure traversing
the single access conduit 130 of the container 100. The first and second vapor conduits
180, 185 are configured to allow sufficient gas, including evaporated vapor, to move
to the interior region 300 of the desiccant unit 170 in situations where maximum evaporative
cooling of the container is desired. Therefore, the size, shape and placement of the
first and second vapor conduits 180, 185 will depend on factors including the size
of the container, the temperature ranges desired for the container, and the physical
properties of the desiccant material and the evaporative liquid utilized in a particular
embodiment. For example, in some embodiments the target temperature range of the storage
region is between 0 and 10 degrees Centigrade, and the container includes approximately
1 liter of liquid water and a corresponding volume of desiccant material including
calcium chloride to absorb greater than 1 liter of water.
See "
The Calcium Chloride Handbook, A Guide to Properties, Forms, Storage and Handling,"
DOW Chemical Company, dated August 2003, which is incorporated by reference herein. Figure 4 illustrates that some embodiments
include a sensor 350 that is a temperature sensor within the interior region 265 of
the evaporative cooling unit and operably connected to the controller 360 within the
vapor control unit 140 with a wire connection 370. Some embodiments include a plurality
of sensors, including temperature sensors.
[0057] The vapor control unit 140 is connected between the first vapor conduit 180 and the
second vapor conduit 185. In the embodiment illustrated in Figure 4, the vapor control
unit 140 is integral to, and substantially internal to, the ends of the first and
second vapor conduits 180, 185. The vapor control unit 140 includes a valve 345 and
a controller 360. The controller 360 is operably connected to a sensor 350 with a
wire connection 370. The controller 360 is operably connected to the valve 345 within
the vapor control unit 140. In some embodiments, the vapor control unit 140 includes:
a thermocouple unit configured to respond to the temperature of vapor in the vapor
conduit 180; a valve 345 configured to regulate vapor flow through the vapor control
unit 140; and a controller 360 operably connected to the thermocouple unit and to
the valve 345.
[0058] Figure 5 shows aspects of an embodiment of a substantially thermally sealed storage
container 100. The view and embodiment illustrated in Figure 5 is similar to that
shown in Figure 5. In the embodiment illustrated in Figure 5, the desiccant unit 170
also includes a heating element 500 within the desiccant unit 170, the heating element
500 configured to heat an internal, liquid-impermeable chamber of the desiccant unit
170. For example, the heating element 500 can include an electrical heating coil positioned
around the interior of the desiccant unit 170 and in thermal contact with the plurality
of units of desiccant material 310. In some embodiments, the heating element is positioned
external to the desiccant unit 170, for example adjacent to the external wall 320
of the desiccant unit 170. For example, the heating element can include a heat lamp
positioned adjacent to the exterior surface of the desiccant unit 170. Some embodiments
include a power source 190 operably attached to the heating element 500. For example,
the power source 190 can include one or more of: a battery pack, an electric plug
configured to receive AC or DC power from an external source, a solar panel, or a
mechanical generator (e.g. a crank mechanism for a mechanical electricity generator).
[0059] Some embodiments include a display unit operably attached to the vapor conduit, such
as directly to a temperature sensor within the vapor conduit. A display unit can include,
for example, a light, a screen display, an e-ink display or a similar device. Some
embodiments include a display unit operably attached to the vapor control unit. The
display unit can, for example, be operably connected to the controller and configured
to receive signals from the controller indicating conditions regarding the interior
of the container. For example, in embodiments including a light as a display unit,
the controller can be configured to make a transmission to the light initiating the
light to switch on when data accepted from the sensor indicates that the interior
temperature of the container is within a preset temperature range. For example, in
embodiments including a screen display, the controller can be configured to transmit
data regarding the conditions of the container to the screen display, such as the
most recent internal temperature reading(s), the most recent gas pressure reading(s),
or the position of the valve 345. Some embodiments include a user input device, such
as a push-button, a touch sensor, or a keypad. The user input device can be operably
attached to the controller. For example, the controller may be configured to respond
to a specific user input, as transmitted by a user input device, by opening the valve
within the vapor conduit. For example, the controller may be configured to respond
to a specific user input, as transmitted by a user input device, by closing the valve
within the vapor conduit. For example, the controller may be configured to respond
to a specific user input, as transmitted by a user input device, by initiating a display
of the most recent temperature data on an attached screen display.
[0060] Figure 6 illustrates aspects of an embodiment of a substantially thermally sealed
storage container 100 in a cross-section view, similar to the views shown in Figures
4 and 5. Figure 6 depicts a substantially thermally sealed storage container 100 including
an outer wall 150 and an interior wall 200 forming a substantially gas sealed gap
210 between the walls. The walls 150, 200 are attached to an outer wall and the conduit
250 of a single access conduit 130 at the upper region of the container 100. A seal
135 creates a gas-sealed gap between the outer wall and connector 250 of the single
access conduit 130. The gap 210 can include an ultra-efficient insulation material
within the gap 210. The container 100 includes an inner wall 260, which is configured
to form a gas-sealed gap 265 between the interior wall 200 and the inner wall 260.
The gas-sealed gap 265 includes an evaporative liquid 400 with a surface region 410.
The gas-sealed gap 265 is connected to two first vapor conduits, 180 A, 180 B. Each
of the vapor conduits, 180 A, 180 B traverse the interior of the conduit 130 and wrap
around the outer surface of the conduit 130 to attach to an adjacent desiccant unit
170 A, 170 B. Each of the desiccant units 170 A, 170 B include a heating element 500
A, 500 B within the desiccant unit 170 A, 170 B and attached to the outer wall 310
A, 310 B of the respective desiccant unit 170 A, 170 B. Each of the respective heating
elements 500 A, 500 B are operably attached to a power source 190 A, 190 B. The second
vapor conduit 185 A, 185 B attached to each of the desiccant units 170 A, 170 B includes
a side conduit 600 A, 600 B. Each of the respective side conduits 600 A, 600 B terminate
with a sealing valve 610 A, 610 B configured to form a gas-impermeable seal on the
end of the side conduit 600 A, 600 B. The sealing valves 610 A, 610 B can be, for
example, one-way pressure valves configured to permit the release of gas beyond a
specific pressure from within the attached side conduit 600 A, 600 B. The sealing
valves 610 A, 610 B can be, for example, one-way pressure valves configured to permit
the release of gas beyond a specific temperature.
[0061] A control unit 140 A, 140 B is positioned adjacent to, and attached to, each of the
second vapor conduits 185 A, 185 B at and end of the second vapor conduits at a position
between the side conduit 600 A, 600 B and the interior of the container 100. The control
units 140 A, 140 B each include a valve, 345 A, 345 B configured to form a gas-impermeable
seal across the respective control units 140 A, 140 B, and therefore between the attached
first vapor conduit 180 A, 180 B and the attached second vapor conduits 185 A, 185
B. The control units 140 A, 140 B each include a controller 360 A, 360 B operably
attached to the valve, 345 A, 345 B. The controllers 360 A, 360 B are each also attached
to a sensor 350 A, 350 B attached to an inner surface of the first vapor conduit 180
A, 180 B. A connector 370 A, 370 B operably attaches the controller 360 A, 360 B and
the sensor 350 A, 350 B. Although a wire connector 370 A, 370 B is illustrated, in
some embodiments the controller 360 A, 360 B and the sensor 350 A, 350 B are connected
with a wireless connection, such as infra-red (IR) or short range radio signals (e.g.
Bluetooth).
[0062] An externally-controllable sealing unit 620 A, 620 B including a externally-controllable
valve 625 A, 625 B is positioned within the first vapor conduit 180 A, 180 B at a
position external to the container 100. In some embodiments, the externally-controllable
sealing unit 620 A, 620 B can include, for example, a magnetically-controllable valve
625 A, 625 B configured to form and detach a gas-impermeable seal within the first
vapor conduit 180 A, 180 B in response to an external magnetic field. In some embodiments,
the externally-controllable sealing unit 620 A, 620 B can include, for example, an
externally-controllable valve 625 A, 625 B with a manual control wheel positioned
externally wherein the externally-controllable valve 625 A, 625 B is of a size and
shape to form and detach a gas-impermeable seal across the internal diameter of the
first vapor conduit 180 A, 180 B in response to external turning of the manual control
wheel. For example, , an externally-controllable valve 625 A, 625 B can include a
butterfly valve within the first vapor conduit 180 A, 180 B, the butterfly valve externally-operable
by a hand crank external to the first vapor conduit.
[0063] Over the duration of use of a container such as the one illustrated in Figure 6,
a quantity of liquid 400 may be transferred from the gas-sealed gap 265 interior of
the container to the desiccant material 310 A, 310 B. In order for the container to
remain operational with control of the evaporative cooling unit within a particular,
predetermined temperature range, the desiccant material 310 A, 310 B must be periodically
recharged by removal of the associated evaporative liquid. In an embodiment such as
the one illustrated in Figure 6, an externally-controllable valve 625 A, 625 B can
be used to effectively seal the first vapor conduit 180 A, 180 B between one of the
desiccant units 170 A, 170 B and the gas-sealed gap 265 and the liquid surface 410
during recharging of a desiccant unit 170 A, 170 B while the remaining desiccant unit
170 A, 170 B remains operational. In some embodiments, the user can choose to use
either the A or the B side of the desiccant units 170 A, 170 B, or both sides, at
a given time. Some embodiments include a controller that automatically utilizes either
the A or the B side of the desiccant units 170 A, 170 B, or both sides, at a given
time. The desiccant unit 170 A, 170 B sealed from the gas-sealed gap at a particular
time can be heated with the attached heating unit 500 A, 500 B, resulting in vaporization
of the evaporative liquid associated with the desiccant material 310 A, 310B. This
vaporized evaporative liquid is removed from the system via the sealing valve 610
A, 610 B. After refreshment, the sealing valve 610 A, 610 B is closed, and the externally-controllable
valve 625 A, 625 B can be opened when desired for evaporative cooling of the container
and further absorption of vapor by the desiccant material.
[0064] Alternatively, in some embodiments the vapor conduit 180 A, 180 B includes a detachment
mechanism configured to permit the removal of a desiccant unit 170 A, 170 B from the
container for recharging and/or refreshment. For example, a desiccant unit 170 A,
170 B can be configured to be removable, wherein the desiccant material can be refreshed
or replaced, then the desiccant unit can be reattached to the container for continued
use.
[0065] Figure 7 illustrates aspects of an embodiment of a substantially thermally sealed
storage container 100. The substantially thermally sealed storage container 100 includes
an outer wall 150 substantially defining a substantially thermally sealed storage
container 100, the outer wall 150 substantially defining a single outer wall aperture.
The container 100 includes a desiccant unit 170 external to the outer wall 150, the
desiccant unit 170 including at least one aperture connected to a vapor conduit. The
container 100 also includes an interior wall 200 substantially defining a thermally-controlled
storage area 220 within the container 100, the interior wall 200 substantially defining
a single interior wall aperture. The interior wall 200 and the outer wall 150 are
separated by a distance and substantially define a gas-sealed gap 210. The container
100 includes a connector 250 forming the internal wall of a single access conduit
130 connecting the single outer wall aperture with the single interior wall aperture.
The connector 250 is sealed 230 to the single outer wall aperture and sealed 240 to
the single interior wall aperture. The container 100 includes a single access aperture
to the thermally-controlled storage area 220, wherein the single access aperture is
defined by an end of the access conduit 130. The container 100 also includes a primary
vapor conduit 180 positioned substantially within the access conduit 130, the primary
vapor conduit 180 including a first end and a second end, the first end traversing
the at least one aperture in the interior wall, the second end sealed to a primary
vapor control unit 140. The primary vapor control unit 140 is also sealed to the vapor
conduit attached to the desiccant unit 170. The primary vapor control unit 140 includes
a valve configured to create a gas-impermeable seal across the interior of the primary
vapor control unit 140. A gas-impermeable seal across the interior of the primary
vapor control unit 140 also blocks vapor flow through the length of the interior 285
of the primary vapor conduit 180. The primary vapor control unit 140 includes a controller
operably attached to the valve, and a sensor operably attached to the controller.
[0066] The container 100 includes a first inner wall 710 and a second inner wall 720 each
attached to the interior wall 200, the inner walls 710, 720 positioned to form a first
liquid-impermeable gap 730 between the first 710 and second 720 inner walls, the first
710 and second 720 inner walls together forming a floor to a first storage region
220 A in the thermally-controlled storage area 220. The container 100 includes an
aperture 715 in the first inner wall 710. A first regional vapor conduit 700 is attached
to the primary vapor conduit 180, the first regional vapor conduit 700 including a
first end and a second end, the first end sealed to the primary vapor conduit 180,
the second end sealed to the aperture 715 in the first inner wall 710. A first regional
vapor control unit 705 is attached to the first regional vapor conduit 700. The container
100 includes a third inner wall 795 attached to the interior wall 200, the third inner
wall 795 positioned to form a second liquid-impermeable gap 797 between the third
inner wall 795 and the interior wall 200, the third inner wall 795 forming a floor
to a second storage region 220 B in the thermally-controlled storage area. There is
an aperture 790 in the third inner wall 795. The container 100 includes a second regional
vapor conduit 780 attached to the end of the primary vapor conduit 180. The second
regional vapor conduit 780 includes a first end and a second end, the first end sealed
to the primary vapor conduit 180, the second end sealed to the aperture 790 in the
third inner wall 795. The container 100 includes a second regional vapor control unit
785 attached to the second regional vapor conduit 780. A concavity 735 in the first
710 and second 720 inner walls creates an inner aperture to permit access to the second
storage region 220 B. The concavity is sealed with a liquid-impermeable seal 737.
[0067] In an embodiment such as the one illustrated in Figure 7, each of the first and second
regional vapor control units 705, 785 are configured to independently regulate the
gas transfer from, and therefore the evaporation of, evaporative liquid in each of
the first liquid-impermeable gap 730 and the second liquid-impermeable gap 797, respectively.
In some embodiments, each of the first liquid-impermeable gap 730 and the second liquid-impermeable
gap 797 include the same evaporative liquid. For example, each of the first liquid-impermeable
gap 730 and the second liquid-impermeable gap 797 can include an evaporative liquid
that is water. In some embodiments, the first liquid-impermeable gap 730 and the second
liquid-impermeable gap 797 include different evaporative liquids, both of which are
absorbed by the desiccant material within the desiccant unit 170. For example, in
some embodiments the first liquid-impermeable gap 730 can include an evaporative liquid
that is water while the second liquid-impermeable gap 797 can include an evaporative
liquid that is methanol, while the desiccant material includes calcium chloride. Each
of the regional vapor control units 705, 785 includes a regional controller, and a
valve operably attached to the controller, the valve configured to reversibly create
a gas-impermeable seal across the attached regional vapor conduit 700, 780, and a
temperature sensor operably attached to the controller. Each of the regional vapor
control units 705, 785 can be preset to operate the attached valve in a preset temperature
range, creating a first storage region 220 A and a second storage region 220 B retained
at different temperatures during use. For example, a container 100 can include a first
storage region 220 A with a regional vapor control unit 705 configured to retain the
first storage region in a temperature range between 2 degrees and 8 degrees Centigrade.
Also by way of example, the container 100 can also include a second storage region
220 B with a regional vapor control unit 785 configured to retain the second storage
region 220 B in a temperature range between -5 degrees and +5 degrees Centigrade.
Some embodiments include: a primary vapor control unit 140 including a thermocouple
unit configured to respond to the temperature of vapor in the primary vapor conduit
285, a valve configured to regulate vapor flow through the primary vapor conduit 180,
and a primary controller operably connected to the thermocouple unit and to the valve;
a first regional vapor control unit 705 including a thermocouple unit configured to
respond to the temperature of vapor in the first regional vapor conduit 700, a valve
configured to regulate vapor flow through the first regional vapor conduit 700, and
a connection to the primary controller; and a second regional vapor control unit 785
including a thermocouple unit configured to respond to the temperature of vapor in
the second regional vapor conduit 780, a valve configured to regulate vapor flow through
the second regional vapor conduit 780, and a connection to the primary controller.
[0068] Figure 8 illustrates aspects of an embodiment of a substantially thermally sealed
storage container 100. The container 100 includes an outer wall 150 substantially
defining the substantially thermally sealed storage container 100, the outer wall
150 substantially defining a single outer wall aperture. The container 100 includes
an interior wall 200 substantially defining a thermally-controlled storage region
220, the interior wall 200 substantially defining a single interior wall aperture.
The interior wall 200 and the outer wall 150 of the container 100 are separated by
a distance and substantially define a gas-sealed gap 210. The container 100 includes
at least one section of ultra efficient insulation material disposed within the gas-sealed
gap 210. The container 100 includes a connector 250 forming an access conduit 130
connecting the single outer wall aperture with the single interior wall aperture.
A seal 230 creates a gas-impermeable junction between the exterior 110 of the conduit
130 and the outer wall 150. A seal 240 creates a gas-impermeable junction between
the interior region 290 of the access conduit 130 and the interior wall 200. The container
100 includes a single access aperture to the thermally-controlled storage region 220,
wherein the single access aperture is defined by an end of the access conduit 130.
The container includes a primary vapor conduit 180 positioned substantially within
the access conduit 130, the primary vapor conduit 180 including a first end and a
second end, the first end traversing the at least one aperture in the interior wall
200, the second end sealed to the at least one aperture of the desiccant unit 170.
[0069] The container 100 includes first inner wall 710 and a second inner wall 720 each
attached to the interior wall 200, the inner walls 710, 720 positioned to form a first
liquid-impermeable gap 730 between the first 710 and second 720 inner walls, the first
710 and second 720 inner walls forming a floor to a first storage region 220 A in
the thermally-controlled storage area 220. The first 710 and second 720 inner walls
are positioned substantially parallel to each other, and substantially horizontally
when the container 100 is positioned for its normal use, as shown in Figure 8. The
container 100 includes an aperture 715 in the first inner wall 710. A first regional
vapor conduit 700 is attached to the primary vapor conduit 180, the first regional
vapor conduit 700 including a first end and a second end, the first end sealed to
the primary vapor conduit 180, the second end sealed to the aperture 715 in the first
inner wall 710. A first regional vapor control unit 705 is attached to the first regional
vapor conduit 700. A concavity 735 in the first 710 and second 720 inner walls creates
an inner aperture to permit access to the second storage region 220 B from the first
storage region 220 A. A liquid-impermeable seal 737 is at the edge of the first 710
and second 720 inner walls around the concavity 735.
[0070] The embodiment illustrated in Figure 8 also includes a third inner wall 830 and a
fourth inner wall 860, each attached to the interior wall 200, the inner walls 830,
860 positioned to form a second liquid-impermeable gap 840 between the third 830 and
fourth 860 inner walls, the third 830 and fourth 860 inner walls forming a floor to
a second storage region 220 B in the thermally-controlled storage area 220. The third
830 and fourth 860 inner walls are positioned substantially parallel to each other,
and substantially horizontally when the container 100 is positioned for its normal
use. The container 100 includes an aperture 850 in the third inner wall 830. A second
regional vapor conduit 800 is attached to the primary vapor conduit 180, the second
regional vapor conduit 800 including a first end and a second end, the first end sealed
to the primary vapor conduit 180, the second end sealed to an aperture 820 in the
third inner wall 820. A second regional vapor control unit 810 is attached to the
second regional vapor conduit 800. A concavity 850 in the third 830 and fourth 860
inner walls creates an inner aperture to permit access from the second storage region
220 B to the third storage region 220 C. A liquid-impermeable seal 855 is at the edge
of the third 830 and fourth 860 inner walls around the concavity 850. The container
100 also includes fifth inner wall 795 attached to the interior wall 200, the fifth
inner wall 795 positioned to form a third liquid-impermeable gap 797 between the fifth
inner wall 795 and the interior wall 200, the fifth inner wall 795 forming a floor
to a third storage region 220 C in the thermally-controlled storage area 220. There
is an aperture 790 in the fifth inner wall 795. The container 100 includes a third
regional vapor conduit 780 attached to the end of the primary vapor conduit 180. The
third regional vapor conduit 780 includes a first end and a second end, the first
end sealed to the primary vapor conduit 180, the second end sealed to the aperture
790 in the fifth inner wall 795. The container 100 includes a third regional vapor
control unit 785 attached to the third regional vapor conduit 780.
[0071] In an embodiment such as the one illustrated in Figure 8, each of the regional vapor
control units 705, 810, 785 are configured to independently regulate the gas transfer
from, and therefore the evaporation of, liquid in each of the first liquid-impermeable
gap 730 and the second liquid-impermeable gap 840 and the third liquid-impermeable
gap 797, respectively. In some embodiments, each of the liquid-impermeable gaps 730,
840, 797 include the same evaporative liquid. For example, each of the liquid-impermeable
gaps 730, 840, 797 can include an evaporative liquid that is water. In some embodiments,
each of the first liquid-impermeable gap 730 and the second liquid-impermeable gap
840 and the third liquid-impermeable gap 797 include different evaporative liquids,
each of which are absorbed by the desiccant material within the desiccant unit 170.
For example, the first liquid-impermeable gap 730 can include an evaporative liquid
that is water, the second liquid-impermeable gap 840 can include an evaporative liquid
that is ethanol, and the third liquid-impermeable gap can include an evaporative liquid
that is ammonia, while the desiccant material in the desiccant unit 170 includes lithium
chloride. Each of the regional vapor control units 705, 810, 785 includes a regional
controller, a valve operably attached to the controller, the valve configured to reversibly
create a gas-impermeable seal across the attached regional vapor conduit 700, 800,
780, and a temperature sensor operably attached to the controller.
[0072] Each of the regional vapor control units 705, 810, 785 can be preset to operate the
attached valve in a preset temperature range, so that the first storage region 220
A, the second storage region 220 B and the third storage region 220 C can be retained
at different temperatures during use. For example, a container 100 can include a first
storage region 220 A with a regional vapor control unit 705 configured to retain the
first storage region in a temperature range between 2 degrees and 8 degrees Centigrade.
Also by way of example, the container 100 can also include a second storage region
220 B with a regional vapor control unit 810 configured to retain the second storage
region 220 B in a temperature range between -5 degrees and +5 degrees Centigrade.
As a further example, the container 100 can include a third storage region 220 C with
a regional vapor control unit 785 configured to retain the third storage region 220
C in a temperature range between -15 degrees and -25 degrees Centigrade. Some embodiments
include: a primary vapor control unit 140 including a thermocouple unit configured
to respond to the temperature of vapor in the primary vapor conduit 285, a valve configured
to regulate vapor flow through the primary vapor conduit 180, and a primary controller
operably connected to the thermocouple unit and to the valve; as well as each of a
first, second and third regional vapor control unit 705, 810, 785 including a thermocouple
unit configured to respond to the temperature of vapor in the attached regional vapor
conduit 700, 800, 780, a valve configured to regulate vapor flow through the attached
regional vapor conduit 700, 800, 780, and a connection to the primary controller.
[0073] Some embodiments include a substantially thermally sealed storage container including
a plurality of storage regions within the container.
See, e.g. Figures 7 and 8. In some embodiments, the outer assembly including one or more sections
of ultra efficient insulation material substantially defines a plurality of thermally
sealed storage regions. The plurality of storage regions can be, for example, of comparable
size and shape or they can be of differing sizes and shapes as appropriate to the
embodiment. Different storage regions can include, for example, various removable
inserts, at least one layer including at least one metal on the interior surface of
a storage region, or at least one layer of nontoxic material on the interior surface,
in any combination or grouping.
[0074] Figure 9 illustrates aspects of a substantially thermally sealed storage container
100. The substantially thermally sealed storage container 100 is illustrated from
an external view. The substantially thermally sealed storage container 100 includes
an outer wall 150 substantially defining the substantially thermally sealed storage
container 100, the outer wall 150 substantially defining a single outer wall aperture.
A base region 160 is attached to the lower portion of the outer wall 150. Two external
access ports 125, 120 are attached to the outer wall 150 and sealed prior to use of
the container 100. The container 100 also includes an interior wall substantially
defining a thermally-controlled storage region, the interior wall substantially defining
a single interior wall aperture, wherein the interior wall and the outer wall are
separated by a distance and substantially define a gas-sealed gap. The container 100
includes at least one section of ultra efficient insulation material disposed within
the gas-sealed gap. The container 100 includes a connector forming the interior of
an access conduit connecting the single outer wall aperture with the single interior
wall aperture, and a single access aperture to the thermally-controlled storage region,
wherein the single access aperture is defined by an end of the access conduit 130.
The access conduit includes an outer wall 110 and an inner wall, the walls of the
conduit 130 connected at the outer edge with a seal 135. The container 100 includes
at least one inner wall, the inner wall sealed to the interior wall along at least
one junction, the inner wall and the interior wall separated by a distance and substantially
defining a liquid-impermeable gap, and an aperture in the at least one inner wall.
[0075] The container 100 includes a primary vapor conduit 180 positioned substantially within
the access conduit, the primary vapor conduit 180 including a first end and a second
end, the primary vapor conduit 180 sealed to a vapor control unit 140, the first end
sealed to the aperture in the at least one inner wall. A second vapor conduit 185
is attached to the vapor control unit 140 at a position distal to the primary vapor
conduit 180. In some embodiments, the vapor control unit 140 is integral to a vapor
conduit. In some embodiments, the vapor control unit 140 is integral to a junction
between the primary vapor conduit 180 and the second vapor conduit 185. The container
100 includes a vapor conduit junction 920 attached to the second vapor conduit 185
at a position distal to the vapor control unit 140. The vapor conduit junction includes
a three-way junction in the conduit, the junction of a size and shape to not inhibit
gas flow between the vapor control unit 140 and each of the desiccant storage units
170 A, 170 B.
[0076] The container 100 includes two desiccant units 170 A, 170 B external to the outer
wall 150, each of the desiccant storage units 170 A, 170 B including at least one
aperture. The container 100 includes two secondary vapor conduits 900 A, 900 B including
a first end and a second end, the first end attached to the vapor conduit junction
920, the second end attached to an aperture in the adjacent desiccant unit 170 A,
170 B, and each of the two secondary vapor conduits 900 A, 900 B including an externally-operable
valve 910 A, 910 B. One or more of the externally-operable valves 910 A, 910 B can
be configured to substantially eliminate gas flow through the attached secondary vapor
conduit 900 A, 900 B when closed. One or more of the externally-operable valves 910
A, 910 B can be configured to allow free gas flow through the attached secondary vapor
conduit 900 A, 900 B when open. For example, one or more of the externally-operable
valves 910 A, 910 B can include a butterfly valve positioned within the secondary
vapor conduit 900 A, 900 B, the butterfly valve attached to an external wheel to open
and close the valve within the attached secondary vapor conduit 900 A, 900 B. In some
embodiments, the second end of each of the secondary vapor conduits 900 A, 900 B is
reversibly attachable to the associated desiccant unit 170 A, 170 B with a gas-impermeable,
removable fitting. For example, the desiccant units 170 A 170 B can be configured
to be removable, replaceable and rechargeable.
[0077] In the embodiment illustrated in Figure 9, each of the desiccant units 170 A, 170
B includes a power source 190 A, 190 B. The power source 190 A, 190 B can, for example,
be operably connected to a heating element within the desiccant unit 170 A, 170B.
See,
e.g. Figs. 5 and 6. Some embodiments include a gas vent mechanism configured to allow
gas with a pressure above a preset limit to vent externally from the desiccant unit
170 A, 170 B. For example, a desiccant unit 170 A, 170 B can include a one-way, pressure-sensitive
reversible valve. For example, a desiccant unit 170 A, 170 B can include a one-way,
pressure-sensitive region that breaks open when subjected to excessive pressure.
[0078] Some embodiments of a container can include one or more interlocks. As used herein,
an "interlock" includes at least one connection between storage regions, wherein the
interlock acts so that the motion or operation of one part is constrained by another.
An interlock can be in an open position, allowing the movement of stored material
from one region to another, or an interlock can be in a closed position to restrict
the movement or transfer of material. In some embodiments, an interlock can have intermediate
stages or intermediate open positions to regulate or control the movement of material.
For example, an interlock can have at least one position that restricts egress of
a discrete quantity of a material from at least one storage region. For example, an
interlock can act to restrict the egress of a stored unit of a material from a storage
region until another previously-stored unit of a material egresses from the container.
For example, an interlock can act to allow the egress of only a fixed quantity of
stored material or stored units of material from a storage region during a period
of time. At least one of the one or more interlocks can operate independently of an
electrical power source, or at least one of the one or more interlocks can be electrically
operable interlocks. An electrical power source can originate, for example, from municipal
electrical power supplies, electric batteries, or an electrical generator device.
Interlocks can be mechanically operable interlocks. For example, mechanically operable
interlocks can include at least one of: electrically actuated mechanically operable
interlocks, electromagnetically operable interlocks, magnetically operable interlocks,
mechanically actuated interlocks, ballistically actuated interlocks, dynamically actuated
interlocks, centrifugally actuated interlocks, optically actuated interlocks, orientationally
actuated interlocks, thermally actuated interlocks, or gravitationally actuated interlocks.
In some embodiments, at least one of the one or more interlocks includes at least
one magnet.
[0079] An interlock can operate to allow the transfer or movement of material from one region
to another in a unidirectional or a bidirectional manner. For example, an interlock
can operate to allow the transfer of material from a storage region within a container
to an intermediate region or a region external to the container in a unidirectional
manner, while restricting the transfer or movement of material from a region external
to the container into the container. For example, an interlock can operate to allow
the transfer of material into at least one storage region within a container, such
as for refilling or recharging a supply of material stored within the container. For
example, an interlock can operate to restrict the egress of stored material from a
storage region while allowing for the ingress of a heat sink material such as dry
ice, wet ice, liquid nitrogen, or other heat sink material. For example, an interlock
can operate to restrict the egress of stored material from a storage region while
allowing the ingress of gas or vapor, such as to equalize the gaseous pressure within
at least one region within the container with a gaseous pressure external to the container.
[0080] In some embodiments the substantially thermally sealed storage container can include
one or more heat sink units thermally connected to one or more of the at least one
storage region. In some embodiments, the substantially thermally sealed storage container
can include no heat sink units. In some embodiments, the substantially thermally sealed
storage container can include no heat sink units within the interior of the container.
The term "heat sink unit," as used herein, includes one or more units that absorb
thermal energy. See, for example,
U.S. Patent 5,390,734 to Voorhes et al., titled "Heat Sink,"
U.S. Patent 4,057,101 to Ruka et al., titled "Heat Sink,"
U.S. Patent 4,003,426 to Best et al., titled "Heat or Thermal Energy Storage Structure," and
U.S. Patent 4,976,308 to Faghri titled "Thermal Energy Storage Heat Exchanger," which are each incorporated herein
by reference. Heat sink units can include, for example: units containing frozen water
or other types of ice; units including frozen material that is generally gaseous at
ambient temperature and pressure, such as frozen carbon dioxide (CO
2); units including liquid material that is generally gaseous at ambient temperature
and pressure, such as liquid nitrogen; units including artificial gels or composites
with heat sink properties; units including phase change materials; and units including
refrigerants. See, for example:
U.S. Patent 5,261,241 to Kitahara et al., titled "Refrigerant,"
U.S. Patent 4,810,403 to Bivens et al., titled "Halocarbon Blends for Refrigerant Use,"
U.S. Patent 4,428,854 to Enjo et al., titled "Absorption Refrigerant Compositions for Use in Absorption Refrigeration
Systems," and
U.S. Patent 4,482,465 to Gray, titled "Hydrocarbon-Halocarbon Refrigerant Blends," which are each herein incorporated
by reference.
[0081] In some embodiments, a substantially thermally sealed container includes at least
one layer of nontoxic material on an interior surface of one or more of the at least
one thermally sealed storage region. Nontoxic material can include, for example, material
that does not produce residue that can be toxic to the contents of the at least one
substantially thermally sealed storage region, or material that does not produce residue
that can be toxic to the future users of contents of the at least one substantially
thermally sealed storage region. Nontoxic material can include material that maintains
the chemical structure of the contents of the at least one substantially thermally
sealed storage region, for example nontoxic material can include chemically inert
or non-reactive materials. Nontoxic material can include material that has been developed
for use in, for example, medical, pharmaceutical or food storage applications. Nontoxic
material can include material that can be cleaned or sterilized, for example material
that can be irradiated, autoclaved, or disinfected. Nontoxic material can include
material that contains one or more antibacterial, antiviral, antimicrobial, or antipathogen
agents. For example, nontoxic material can include aldehydes, hypochlorites, oxidizing
agents, phenolics, quaternary ammonium compounds, or silver. Nontoxic material can
include material that is structurally stable in the presence of one or more cleaning
or sterilizing compounds or radiation, such as plastic that retains its structural
integrity after irradiation, or metal that does not oxidize in the presence of one
or more cleaning or sterilizing compounds. Nontoxic material can include material
that consists of multiple layers, with layers removable for cleaning or sterilization,
such as for reuse of the at least one substantially thermally sealed storage region.
Nontoxic material can include, for example, material including metals, fabrics, papers
or plastics.
[0082] In some embodiments, a substantially thermally sealed container includes at least
one layer including at least one metal on an interior surface of one or more of the
at least one thermally sealed storage region. For example, the at least one metal
can include gold, aluminum, copper, or silver. The at least one metal can include
at least one metal composite or alloy, for example steel, stainless steel, metal matrix
composites, gold alloy, aluminum alloy, copper alloy, or silver alloy. In some embodiments,
the at least one metal includes metal foil, such as titanium foil, aluminum foil,
silver foil, or gold foil. A metal foil can be a component of a composite, such as,
for example, in association with polyester film, such as polyethylene terephthalate
(PET) polyester film. The at least one layer including at least one metal on the interior
surface of at least one storage region can include at least one metal that can be
sterilizable or disinfected. For example, the at least one metal can be sterilizable
or disinfected using plasmons. For example, the at least one metal can be sterilizable
or disinfected using autoclaving, thermal means, or chemical means. Depending on the
embodiment, the at least one layer including at least one metal on the interior surface
of at least one storage region can include at least one metal that has specific heat
transfer properties, such as a thermal radiative properties.
[0083] In some embodiments, a substantially thermally sealed storage container includes
one or more removable inserts within an interior of one or more of the at least one
thermally sealed storage region. The removable inserts can be made of any material
appropriate for the embodiment, including nontoxic materials, metal, alloy, composite,
or plastic. The one or more removable inserts can include inserts that can be reused
or reconditioned. The one or more removable inserts can include inserts that can be
cleaned, sterilized, or disinfected as appropriate to the embodiment.
[0084] Some embodiments can include a substantially thermally sealed storage container including
one or more temperature sensors. For example, at least one temperature sensor can
be located within one or more of the at least one substantially thermally sealed storage
region, at least one temperature sensor can be located exterior to the container,
or at least one temperature sensor can be located within the structure of the container.
In some embodiments, multiple temperature sensors can be located in multiple positions.
Temperature sensors can include temperature indicating labels, which can be reversible
or irreversible. See, for example, the Environmental Indicators sold by ShockWatch
Company, with headquarters in Dallas Texas, the Temperature Indicators sold by Cole-Palmer
Company of Vernon Hills Illinois and the Time Temperature Indicators sold by 3M Company,
with corporate headquarters in St. Paul Minnesota, the brochures for which are each
hereby incorporated by reference. Temperature sensors can include time-temperature
indicators, such as those described in
U.S. Patents 5,709,472 and
6,042,264 to Prusik et al., titled "Time-temperature indicator device and method of manufacture" and
U.S. Patent 4,057,029 to Seiter, titled "Time-temperature indicator," which are each herein incorporated by reference.
Temperature sensors can include, for example, chemically-based indicators, temperature
gauges, thermometers, bimetallic strips, or thermocouples.
[0085] In some embodiments, a substantially thermally sealed container can include one or
more sensors. In some embodiments, multiple sensors can be located in multiple positions.
In some embodiments, the one or more sensors includes at least one sensor of a gaseous
pressure within one or more of the at least one storage region, sensor of a mass within
one or more of the at least one storage region, sensor of a stored volume within one
or more of the at least one storage region, sensor of a temperature within one or
more of the at least one storage region, or sensor of an identity of an item within
one or more of the at least one storage region. In some embodiments, at least one
sensor can include a temperature sensor, such as, for example, chemical sensors, thermometers,
bimetallic strips, or thermocouples. An integrally thermally sealed container can
include one or more sensors such as a physical sensor component such as described
in
U.S. Patent 6,453,749 to Petrovic et al., titled "Physical sensor component," which is herein incorporated by reference. An
integrally thermally sealed container can include one or more sensors such as a pressure
sensor such as described in
U.S. Patent 5,900,554 to Baba et al., titled "Pressure sensor," which is herein incorporated by reference. An integrally
thermally sealed container can include one or more sensors such as a vertically integrated
sensor structure such as described in
U.S. Patent 5,600,071 to Sooriakumar et al., titled "Vertically integrated sensor structure and method," which is herein incorporated
by reference. An integrally thermally sealed container can include one or more sensors
such as a system for determining a quantity of liquid or fluid within a container,
such as described in
U.S. Patent 5,138,559 to Kuehl et al., titled "System and method for measuring liquid mass quantity,"
U.S. Patent 6.050,598 to Upton, titled "Apparatus for and method of monitoring the mass quantity and density of
a fluid in a closed container, and a vehicular air bag system incorporating such apparatus,"
and
U.S. Patent 5,245,869 to Clarke et al., titled "High accuracy mass sensor for monitoring fluid quantity in storage tanks,"
which are each herein incorporated by reference. An integrally thermally sealed container
can include one or more sensors of radio frequency identification ("RFID") tags to
identify material within the at least one substantially thermally sealed storage region.
RFID tags are well known in the art, for example in
U.S. Patent 5,444,223 to Blama, titled "Radio frequency identification tag and method," which is herein incorporated
by reference.
[0086] In some embodiments, a substantially thermally sealed container can include one or
more communications devices. The one or more communications devices, can include,
for example, one or more recording devices, one or more transmission devices, one
or more display devices, or one or more receivers. Communications devices can include,
for example, communication devices that allow a user to detect information about the
container visually, auditorily, or via signal to a remote device. Some embodiments
can include communications devices on the exterior of the container, including devices
attached to the exterior of the container, devices adjacent to the exterior of the
container, or devices located at a distance from the exterior of the container. Some
embodiments can include communications devices located within the structure of the
container. Some embodiments can include communications devices located within at least
one of the one or more substantially thermally sealed storage regions. Some embodiments
can include at least one display device located at a distance from the container,
for example a display located at a distance operably linked to at least one sensor.
Some embodiments can include more than one type of communications device, and in some
embodiments the devices can be operably linked. For example, some embodiments can
contain both a receiver and an operably linked transmission device, so that a signal
can be received by the receiver which then causes a transmission to be made from the
transmission device. Some embodiments can include more than one type of communications
device that are not operably linked. For example, some embodiments can include a transmission
device and a display device, wherein the transmission device is not linked to the
display device.
[0087] In some embodiments, a substantially thermally sealed storage container includes
at least one authentication device, wherein the at least one authentication device
can be operably connected to at least one of the one or more interlocks. In some embodiments,
a substantially thermally sealed storage container includes at least one authentication
device, wherein the at least one authentication device can be operably connected to
at least one externally-operable opening, control egress device, communications device,
or other component. For example, an authentication device can include a device which
can be authenticated with a key, or a device that can be authenticated with a code,
such as a password or a combination. For example, an authentication device can include
a device that can be authenticated using biometric parameters, such as fingerprints,
retinal scans, hand spacing, voice recognition or biofluid composition (e.g. blood,
sweat, or saliva).
[0088] In some embodiments, a substantially thermally sealed storage container includes
at least one logging device, wherein the at least one logging device is operably connected
to at least one of the one or more interlocks. In some embodiments, a substantially
thermally sealed storage container includes at least one logging device, wherein the
at least one logging device can be operably connected to at least one externally-operable
opening, control egress device, communications device, or other component. The at
least one logging device can be configured to log information desired by the user.
In some embodiments, a substantially thermally sealed container can include at least
one logging device, wherein the at least one logging device is operably connected
to at least one of the one or more outlet channels. For example, a logging device
can include a record of authentication via the authentication device, such as a record
of times of authentication, operation of authentication or individuals making the
authentication. For example, a logging device can record that an authentication device
was authenticated with a specific code which identifies a specific individual at one
or more specific times. For example, a logging device can record egress of a quantity
of a material from one or more of at least one storage region, such as recording that
some quantity or units of material egressed at a specific time. For example, a logging
device can record information from one or more sensors, one or more temperature indicators,
or one or more communications devices.
[0089] In some embodiments, a substantially thermally sealed storage container can include
at least one control ingress device, wherein the at least one control ingress device
is operably connected to at least one of the one or more interlocks. In some embodiments,
a substantially thermally sealed storage container includes at least one control ingress
device, wherein the at least one control ingress device can be operably connected
to at least one externally-operable opening, control egress device, communications
device, or other component. For example, at least one control ingress device can control
ingress into the inner assembly of the container, such as ingress of: substance or
material to be stored, heat sink material, one or more devices, electromagnetic radiation,
gas, or vapor.
[0090] In some embodiments an integrally thermally sealed container can include one or more
recording devices. The one or more recording devices can include devices that are
magnetic, electronic, chemical, or transcription based recording devices. One or more
recording device can be located within one or more of the at least one substantially
thermally sealed storage region, one or more recording device can be located exterior
to the container, or one or more recording device can be located within the structure
of the container. The one or more recording device can record, for example, the temperature
from one or more temperature sensor, the result from one or more temperature indicator,
or the gaseous pressure, mass, volume or identity of an item information from at least
one sensor within the at least one storage region. In some embodiments, the one or
more recording devices can be integrated with one or more sensor. For example, in
some embodiments there can be one or more temperature sensors which record the highest,
lowest or average temperature detected. For example, in some embodiments, there can
be one or more mass sensors which record one or more mass changes within the container
over time. For example, in some embodiments, there can be one or more gaseous pressure
sensors which record one or more gaseous pressure changes within the container over
time.
[0091] In some embodiments an integrally thermally sealed container can include one or more
transmission device. One or more transmission device can be located within at least
one substantially thermally sealed storage region, one or more transmission device
can be located exterior to the container, or one or more transmission device can be
located within the structure of the container. The one or more transmission device
can transmit any signal or information, for example, the temperature from one or more
temperature sensor, or the gaseous pressure, mass, volume or identity of an item or
information from at least one sensor within the at least one storage region. In some
embodiments, the one or more transmission device can be integrated with one or more
sensor, or one or more recording device. The one or more transmission devices can
transmit by any means known in the art, for example, but not limited to, via radio
frequency (e.g. RFID tags), magnetic field, electromagnetic radiation, electromagnetic
waves, sonic waves, or radioactivity.
[0092] In some embodiments, an integrally thermally sealed container can include one or
more receivers. For example, one or more receivers can include devices that detect
sonic waves, electromagnetic waves, radio signals, electrical signals, magnetic pulses,
or radioactivity. Depending on the embodiment, one or more receiver can be located
within one or more of the at least one substantially thermally sealed storage region.
In some embodiments, one or more receivers can be located within the structure of
the container. In some embodiments, the one or more receivers can be located on the
exterior of the container. In some embodiments, the one or more receiver can be operably
coupled to another device, such as, for example, one or more display devices, recording
devices or transmission devices. For example, a receiver can be operably coupled to
a display device on the exterior of the container so that when an appropriate signal
is received, the display device indicates data, such as time or temperature data.
For example, a receiver can be operably coupled to a transmission device so that when
an appropriate signal is received, the transmission device transmits data, such as
location, time, or positional data.
[0093] Figure 10 illustrates aspects of an embodiment of a vapor control unit 140. The vapor
control unit 140 shown in Figure 10 is positioned at the junction between a first
vapor conduit 180 and a second vapor conduit 185. Figure 10 illustrates a vapor control
unit 140 within the interior dimensions of the junction between a first vapor conduit
180 and a second vapor conduit 185. The vapor control unit 140 is sealed to each of
the first vapor conduit 180 and a second vapor conduit 185 with a gas-impermeable
seal. The vapor control unit 140 includes a valve region 1050 and a control region
1060.
[0094] The valve region 1050 of the vapor control unit 140 illustrated in Figure 10 includes
a valve 345. In the embodiment illustrated, the valve 345 is a butterfly valve, directly
physically connected to the control region 1060 of the vapor control unit 140. The
valve 345 is positioned and sized to include at least two positions, a substantially
open position and a substantially closed position within the valve region 1050. When
the valve 345 is in a substantially open position, the dimensions of the valve 345
within the valve region 1050 of the vapor control unit 140 permit free flow of gas,
including vapor, between the first vapor conduit 180 and the second vapor conduit
185 to equalize gas pressure between the first vapor conduit 180 and the second vapor
conduit 185. The valve 345 is of a size and shape to substantially block the flow
of gas between the first vapor conduit 180 and the second vapor conduit 185 when the
valve 345 is in a substantially closed position. In some embodiments, a valve 345
includes one or more intermediate positions that partially impede gas flow through
the valve 345 between the first vapor conduit 180 and the second vapor conduit 185,
but do not fully block gas flow. For example, a valve 345 can have a "half-flow" position,
or a position that reduces the flow of gas through the valve 345, and therefore between
the first vapor conduit 180 and the second vapor conduit 185, by approximately half,
relative to the fully open position. For example, a valve 345 can have a "quarter-flow"
position, or a position that reduces the flow of gas through the valve 345, and therefore
between the first vapor conduit 180 and the second vapor conduit 185 to approximately
one quarter of the gas flow relative to the fully open position.
[0095] The valve 345 illustrated in Figure 10 is directly connected to a motor 1000. For
example, in some embodiments the motor 1000 is a servomotor. For example, in some
embodiments the motor 1000 is a stepper motor. The motor 1000 is directly connected
to the valve 345 and causes the opening and closing of the valve 345 on receipt of
signals from the controller 360. The motor 1000 is directly connected to the controller
360 with a wire connector. The controller 360 is an electronic controller. For example,
in some embodiments, an electronic controller is a "bang-bang" controller. For example,
in some embodiments, an electronic controller is a bounded system controller. For
example, in some embodiments, an electronic controller is a threshold system controller.
For example, in some embodiments an electronic controller is a feedback system controller.
For example, in some embodiments an electronic controller is a PID controller. A sensor
350 is attached to the controller 360 with a wire connector 370 in the embodiment
illustrated in Figure 10.
[0096] The controller 360 can include circuitry configured to perform specific operations
and processes. For example, the controller 360 can include circuitry configured to
accept data from an attached sensor and determine if the data is within a preset range,
wherein the controller sends a signal to the motor 1000 that results in either opening
or closing the valve 345, relative to if the data is above or below the preset range.
For example, in some embodiments a controller includes circuitry that accepts data
originating with a temperature sensor, compares that data with a preset range of temperatures,
and if the data from the temperature sensor indicates a detected temperature that
is above the preset range, the controller sends a signal to the motor to initiate
the valve to open. For example, in some embodiments a controller includes circuitry
that accepts data originating with a temperature sensor, compares that data with a
preset range of temperatures, and if the data from the temperature sensor indicates
a detected temperature that is within the preset range, the controller does not send
a signal to the motor. For example, in some embodiments a controller includes circuitry
that accepts data originating with a temperature sensor, compares that data with a
preset range of temperatures, and if the data from the temperature sensor indicates
a detected temperature that is below the preset range, the controller sends a signal
to the motor to initiate the valve to close. In some embodiments, the preset temperature
range is between 2 degrees Centigrade and 8 degrees Centigrade. In some embodiments,
the preset temperature range is between 3 degrees Centigrade and 7 degrees Centigrade.
In some embodiments, the preset temperature range is between -2 degrees Centigrade
and +2 degrees Centigrade. In some embodiments, the preset temperature range is between
-3 degrees Centigrade and -7 degrees Centigrade.
[0097] In some embodiments, the controller includes circuitry that calculates an error value
between data accepted from a sensor and a predetermined target value. The calculation
can include data accepted over time,
i.e. multiple data points from a single sensor. The calculation can include data accepted
from a plurality of sensors. In response to the calculated error values, the controller
can calculate a predicted future error value. The circuitry then calculates a combined
error value. If the calculated combination of the calculated past, present and future
error values is beyond the preset setpoint, the circuitry then initiates a signal
to the motor to alter the opening of the valve. For example, a preset setpoint for
some embodiments of a vapor control unit is 5 degrees Centigrade. In such an embodiment,
if the combination of the calculated past, present and future error values was higher
than the preset setpoint (
e.g. 8 degrees Centigrade), the controller would send a signal to the motor, the signal
of a type to initiate the motor to open the attached valve. Similarly, in such an
embodiment, if the combination of the calculated past, present and future error values
was lower than the preset setpoint (
e.g. 2 degrees Centigrade), the controller would send a signal to the motor, the signal
of a type to initiate the motor to close the attached valve.
[0098] As shown in Figure 10, the control region 1060 of the vapor control unit 140 includes
a power source 1020. The power source 1020 can include, for example, a battery. The
battery can be rechargeable, for example from a AC or DC power source or a mechanical
mechanism, such as a crank. The power source can include a solar cell connected to
the external surface of the vapor control unit 140. In the embodiment illustrated
in Figure 10, the power source 1020 is connected to the controller 360 with a wire
connection. In the embodiment illustrated, the power source 1020 supplies electrical
power to the controller 360, which then further transfers electrical power to the
motor 1000. The controller 360 can, for example, transfer power to the motor when
needed to operate the motor 1000. In some embodiments, the power source 1020 supplies
electrical power to the motor 1000 directly, such as through a direct wire connection.
[0099] Figure 10 illustrates that in some embodiments the control region 1060 of the vapor
control unit 140 includes optional memory 1030. The memory 1030 can, for example,
be non-volatile memory. The memory 1030 can, for example, be integrated into the controller
360, or operably connected to the controller 360. The memory 1030 can, for example,
be random-access (RAM) memory.
[0100] Figure 10 illustrates that in some embodiments the control region 1060 of the vapor
control unit 140 includes optional transmitter unit 1040. For example, the control
region 1060 can include a transmitter unit 1040 including an antenna and circuitry
configured to send a signal from the antenna. The circuitry configured to send a signal
from the antenna can be responsive to the controller 360, for example the circuitry
configured to send a signal from the antenna can send the signal based on data received
from the controller 360 (
e.g. one or more data points based on data from the sensor, information on activity of
the motor 1000, or the result of calculations made by the controller 360). The transmitter
unit can be, for example, a Bluetooth™ unit.
[0101] Figures 11A and 11B depict aspects of a vapor control unit 140. The vapor control
unit 140 is positioned between the ends of a first vapor conduit 180 and a second
vapor conduit 185. The respective ends of the vapor control unit 140 are each sealed
to an end of the first vapor conduit 180 or the second vapor conduit 185 with a gas-impermeable
seal. The vapor control unit 140 includes a valve region 1050 and a control region
1060.
[0102] The vapor control unit 140 illustrated in Figure 11A includes a valve region 1050
including a valve 345 and a movable unit 1100. The movable unit 1100 is physically
attached to the valve 345 and configured to provide physical force against the valve
345 in response to a stimulus. For example, in some embodiments a movable unit 1100
is a crank mechanism attached to a valve 345. For example, in some embodiments a movable
unit 1100 includes a bonnet and a stem attached to a valve interior that includes
a disc and a physical seat for the disc. For example, in some embodiments a valve
345 includes a physically deformable region of a conduit, and a movable unit 1100
includes at least two physical elements that are positioned to press against opposing
exterior surfaces of the physically deformable region of the conduit in response to
a signal from the controller. For example, in some embodiments a valve region 1050
includes a valve 345 with a physically deformable region of a conduit and a movable
unit 1100 that includes a reversible clamp on the exterior of the valve, wherein the
movable unit 1100 is attached to a controller. In some embodiments, the movable unit
1100 includes a motor. In some embodiments, the movable unit 1100 is entirely internal
to the vapor control unit 140. In some embodiments, the movable unit 1100 includes
one or more elements that are external to the vapor control unit 140.
[0103] The movable unit 1100 is operably attached to the controller 360 within the control
region 1060 of the vapor control unit 140. A power source 1020 is attached to the
controller 360. The power source 1020 and the controller 360 supply power to the movable
unit 1100, for example a motor element of the movable unit 1100, as needed for operation
of the movable unit 1100. The controller 360 accepts data from an attached sensor
350 within the first vapor conduit 180. Although the sensor 350 is illustrated in
Figures 11A and 11B as adjacent to the junction between the vapor control unit 140
and the first vapor conduit 180, in some embodiments the sensor 350 is positioned
distal to the junction between the vapor control unit 140 and the first vapor conduit
180. For example, in some embodiments a sensor 350 is positioned adjacent to the substantially
thermally sealed storage region within a container.
See, e.g. Figure 5. The sensor 350 is attached to the controller 360 with a wire connector
370 in the embodiment illustrated in Figures 11A and 11B. In some embodiments, memory
1030 is connected to the controller 360. In some embodiments, memory 1030 is integrated
with the controller 360. Some embodiments include a transmitter 1040 attached to the
controller 360. In some embodiments, a transmitter 1040 is integrated with the controller
360.
[0104] In the illustration shown in Figures 11A and 11B, components of the control region
1060, including the controller 360, the power unit 1020, the memory 1030 and the transmitter
1040 are shown as filling space within the interior of the vapor control unit 140.
The components are displayed in an enlarged and distinct manner for ease of visualization.
In an actual embodiment, the components of the control region 1060 would not impede
vapor flow through the vapor control unit 140. In an actual embodiment, the components
illustrated would be smaller than shown. In an actual embodiment, the valve region
1050 of the vapor control unit 140 is the limiting factor for vapor flow between the
first vapor conduit 180 and the second vapor conduit 185 through the vapor control
unit 140.
[0105] Figure 11A illustrates an embodiment of a vapor control unit 140 with the valve 345
in a substantially open position. In the configuration shown in Figure 11A, the movable
unit 1100 attached to the valve 345 is positioned substantially flush with the exterior
surface of the vapor control unit 140. This allows for maximum vapor flow between
the first vapor conduit 180 and the second vapor conduit 185 through the vapor control
unit 140. For example, evaporated liquid from the evaporative unit will flow freely
through the vapor control unit 140 to the desiccant unit in the configuration shown
in Figure 11A.
[0106] Figure 11B illustrates the same embodiment as shown in Figure 11A, with the valve
345 in a substantially closed position. In the configuration shown in Figure 11B,
the movable unit 1100 attached to the valve 345 has moved the valve to a position
adjacent to the interior surface of the vapor control unit 140. An externally- visible
gap 1120 is formed in the vapor control unit 140 when the valve is in the illustrated
"closed" position. The position of the movable unit 1100 and the valve 345 allows
for minimal vapor flow between the first vapor conduit 180 and the second vapor conduit
185 through the vapor control unit 140. For example, the partial pressure of evaporated
liquid from the evaporative unit will increase within the first vapor conduit 140
in the configuration shown in Figure 11B as the evaporated liquid will not be able
to flow through the vapor control unit 140 to the desiccant unit. In some embodiments,
a valve 345 of a vapor control unit 140 has one or more intermediate or partially
open/partially closed configurations that partially restrict vapor flow through the
vapor control unit 140 and between the first vapor conduit 180 and the second vapor
conduit 185.
[0107] In some implementations described herein, logic and similar implementations can include
computer programs or other control structures. Electronic circuitry, for example,
can have one or more paths of electrical current constructed and arranged to implement
various functions as described herein. In some implementations, one or more media
can be configured to bear a device-detectable implementation when such media hold
or transmit device detectable instructions operable to perform as described herein.
In some variants, for example, implementations can include an update or modification
of existing software or firmware, or of gate arrays or programmable hardware, such
as by performing a reception of or a transmission of one or more instructions in relation
to one or more operations described herein. Alternatively or additionally, in some
variants, an implementation can include special-purpose hardware, software, firmware
components, and/or general-purpose components executing or otherwise invoking special-purpose
components.
[0108] The subject matter described herein can be implemented in an analog or digital fashion
or some combination thereof. In a general sense, some aspects described herein can
be implemented, individually and/or collectively, by a wide range of hardware, software,
firmware, and/or any combination thereof can be viewed as being composed of various
types of "electrical circuitry." Consequently, as used herein "electrical circuitry"
includes, but is not limited to, electrical circuitry having at least one discrete
electrical circuit, electrical circuitry having at least one integrated circuit, electrical
circuitry having at least one application specific integrated circuit, electrical
circuitry forming a general purpose computing device configured by a computer program
(e.g., a general purpose computer configured by a computer program which at least
partially carries out processes and/or devices described herein, or a microprocessor
configured by a computer program which at least partially carries out processes and/or
devices described herein), electrical circuitry forming a memory device (e.g., forms
of memory (e.g., random access, flash, read only, etc.)), and/or electrical circuitry
forming a communications device (e.g., a modem, communications switch, optical-electrical
equipment, etc.).
[0109] Alternatively or additionally, implementations can include executing a special-purpose
instruction sequence or invoking circuitry for enabling, triggering, coordinating,
requesting, or otherwise causing one or more occurrences of virtually any functional
operation described herein. In some variants, operational or other logical descriptions
herein can be expressed as source code and compiled or otherwise invoked as an executable
instruction sequence. In some contexts, for example, implementations can be provided,
in whole or in part, by source code, such as C++, or other code sequences. In other
implementations, source or other code implementation, using commercially available
and/or techniques in the art, can be compiled/ /implemented/translated/converted into
a high-level descriptor language (e.g., initially implementing described technologies
in C or C++ programming language and thereafter converting the programming language
implementation into a logic-synthesizable language implementation, a hardware description
language implementation, a hardware design simulation implementation, and/or other
such similar mode(s) of expression). For example, some or all of a logical expression
(e.g., computer programming language implementation) can be manifested as a Verilog-type
hardware description (e.g., via Hardware Description Language (HDL) and/or Very High
Speed Integrated Circuit Hardware Descriptor Language (VHDL)) or other circuitry model
which can then be used to create a physical implementation having hardware (e.g.,
an Application Specific Integrated Circuit).
[0110] In a general sense, various aspects of the embodiments described herein can be implemented,
individually and/or collectively, by various types of electro-mechanical systems having
a wide range of electrical components such as hardware, software, firmware, and/or
virtually any combination thereof, limited to patentable subject matter under 35 U.S.C.
101; and a wide range of components that can impart mechanical force or motion such
as rigid bodies, spring or torsional bodies, hydraulics, electro-magnetically actuated
devices, and/or virtually any combination thereof. Consequently, as used herein "electro-mechanical
system" includes, but is not limited to, electrical circuitry operably coupled with
a transducer (e.g., an actuator, a motor, a piezoelectric crystal, a Micro Electro
Mechanical System (MEMS), etc.), electrical circuitry having at least one discrete
electrical circuit, electrical circuitry having at least one integrated circuit, electrical
circuitry having at least one application specific integrated circuit, electrical
circuitry forming a general purpose computing device configured by a computer program
(e.g., a general purpose computer configured by a computer program which at least
partially carries out processes and/or devices described herein, or a microprocessor
configured by a computer program which at least partially carries out processes and/or
devices described herein), electrical circuitry forming a memory device (e.g., forms
of memory (e.g., random access, flash, read only, etc.)), electrical circuitry forming
a communications device (e.g., a modem, communications switch, optical-electrical
equipment, etc.), and/or any non-electrical analog thereto, such as optical or other
analogs (e.g., graphene based circuitry). Examples of electro-mechanical systems include,
but are not limited to, a variety of consumer electronics systems, medical devices,
as well as other systems such as motorized transport systems, factory automation systems,
security systems, and/or communication/computing systems.
[0111] At least a portion of the devices and/or processes described herein can be integrated
into a data processing system. A data processing system generally includes one or
more of a system unit housing, a video display device, memory such as volatile or
nonvolatile memory, processors such as microprocessors or digital signal processors,
computational entities such as operating systems, drivers, graphical user interfaces,
and applications programs, one or more interaction devices (e.g., a touch pad, a touch
screen, an antenna, etc.), and/or control systems including feedback loops and control
motors (e.g., feedback for sensing position and/or velocity; control motors for moving
and/or adjusting components and/or quantities). A data processing system can be implemented
utilizing suitable commercially available components, such as those typically found
in data computing/communication and/or network computing/communication systems.
[0112] The state of the art has progressed to the point where there is little distinction
left between hardware, software, and/or firmware implementations of aspects of systems;
the use of hardware, software, and/or firmware is generally (but not always, in that
in certain contexts the choice between hardware and software can become significant)
a design choice representing cost vs. efficiency tradeoffs. There are various vehicles
by which processes and/or systems and/or other technologies described herein can be
effected (e.g., hardware, software, and/or firmware), and the preferred vehicle will
vary with the context in which the processes and/or systems and/or other technologies
are deployed. For example, if an implementer determines that speed and accuracy are
paramount, the implementer can opt for a mainly hardware and/or firmware vehicle;
alternatively, if flexibility is paramount, the implementer can opt for a mainly software
implementation; or, yet again alternatively, the implementer can opt for some combination
of hardware, software, and/or firmware in one or more machines, compositions of matter,
and articles of manufacture, limited to patentable subject matter under 35 USC 101.
Hence, there are several possible vehicles by which the processes and/or devices and/or
other technologies described herein can be effected, none of which is inherently superior
to the other in that any vehicle to be utilized is a choice dependent upon the context
in which the vehicle will be deployed and the specific concerns (e.g., speed, flexibility,
or predictability) of the implementer, any of which may vary.
[0113] The herein described subject matter sometimes illustrates different components contained
within, or connected with, different other components. It is to be understood that
such depicted architectures are merely exemplary, and that in fact many other architectures
can be implemented which achieve the same functionality. In a conceptual sense, any
arrangement of components to achieve the same functionality is effectively "associated"
such that the desired functionality is achieved. Hence, any two components herein
combined to achieve a particular functionality can be seen as "associated with" each
other such that the desired functionality is achieved, irrespective of architectures
or intermedial components. Likewise, any two components so associated can also be
viewed as being "operably connected", or "operably coupled," to each other to achieve
the desired functionality, and any two components capable of being so associated can
also be viewed as being "operably couplable," to each other to achieve the desired
functionality. Specific examples of operably couplable include but are not limited
to physically mateable and/or physically interacting components, and/or wirelessly
interactable, and/or wirelessly interacting components, and/or logically interacting,
and/or logically interactable components. In some instances, one or more components
can be referred to herein as "configured to," "configured by," "configurable to,"
"operable/operative to," "adapted/adaptable," "able to," "conformable/conformed to,"
etc. Such terms (e.g. "configured to") generally encompass active-state components
and/or inactive-state components and/or standby-state components, unless context requires
otherwise.
[0114] The herein described components (e.g., operations), devices, objects, and the discussion
accompanying them are used as examples for the sake of conceptual clarity and that
various configuration modifications are contemplated. Consequently, as used herein,
the specific exemplars set forth and the accompanying discussion are intended to be
representative of their more general classes. In general, use of any specific exemplar
is intended to be representative of its class, and the non-inclusion of specific components
(e.g., operations), devices, and objects should not be taken limiting.
[0115] While particular aspects of the present subject matter described herein have been
shown and described, changes and modifications can be made without departing from
the subject matter described herein and its broader aspects and, therefore, the appended
claims are to encompass within their scope all such changes and modifications as are
within the true spirit and scope of the subject matter described herein. In general,
terms used herein, and especially in the appended claims (e.g., bodies of the appended
claims) are generally intended as "open" terms (e.g., the term "including" should
be interpreted as "including but not limited to," the term "having" should be interpreted
as "having at least," the term "includes" should be interpreted as "includes but is
not limited to," etc.). If a specific number of an introduced claim recitation is
intended, such an intent will be explicitly recited in the claim, and in the absence
of such recitation no such intent is present. For example, as an aid to understanding,
the following appended claims can contain usage of the introductory phrases "at least
one" and "one or more" to introduce claim recitations. However, the use of such phrases
should
not be construed to imply that the introduction of a claim recitation by the indefinite articles "a"
or "an" limits any particular claim containing such introduced claim recitation to
claims containing only one such recitation, even when the same claim includes the
introductory phrases "one or more" or "at least one" and indefinite articles such
as "a" or "an" (e.g., "a" and/or "an" should typically be interpreted to mean "at
least one" or "one or more"); the same holds true for the use of definite articles
used to introduce claim recitations. In addition, even if a specific number of an
introduced claim recitation
is explicitly recited, such recitation should typically be interpreted to mean
at least the recited number (e.g., the bare recitation of "two recitations," without other
modifiers, typically means
at least two recitations, or
two or more recitations). Furthermore, in those instances where a convention analogous to "at
least one of A, B, and C, etc." is used, in general such a construction is intended
as " a system having at least one of A, B, and C" would include but not be limited
to systems that have A alone, B alone, C alone, A and B together, A and C together,
B and C together, and/or A, B, and C together, etc. In those instances where a convention
analogous to "at least one of A, B, or C, etc." is used, in general such a construction
is intended as " a system having at least one of A, B, or C" that would include but
not be limited to systems that have A alone, B alone, C alone, A and B together, A
and C together, B and C together, and/or A, B, and C together, etc. Typically, a disjunctive
word and/or phrase presenting two or more alternative terms, whether in the description,
claims, or drawings, should be understood to contemplate the possibilities of including
one of the terms, either of the terms, or both terms unless context dictates otherwise.
For example, the phrase "A or B" will be typically understood to include the possibilities
of "A" or "B" or "A and B."
[0116] With respect to the appended claims, recited operations therein can generally be
performed in any order. Also, although various operational flows are presented in
a sequence(s), it should be understood that the various operations can be performed
in other orders than those which are illustrated, or can be performed concurrently.
Examples of such alternate orderings can include overlapping, interleaved, interrupted,
reordered, incremental, preparatory, supplemental, simultaneous, reverse, or other
variant orderings, unless context dictates otherwise. Furthermore, terms like "responsive
to," "related to," or other past-tense adjectives are generally not intended to exclude
such variants, unless context dictates otherwise.