Field of the invention
[0001] The present invention relates to a portable spray device for the delivery of products,
preferably cleaning products comprising a surfactant.
Background of the invention
[0002] Portable trigger spray devices are known for the purposes of domestic or industrial
cleaning, for example for cleaning hard surfaces such as windows, baths and ovens,
as well as for spot cleaning of floor coverings such as carpets. Most trigger spray
devices which are commercially available are manually activated, that is to say that
the devices comprise a trigger which is activated by hand by the consumer. Most commonly
this manual activation generates liquid pressure in a chamber by means of a positive
deplacement pump which in turn drives the liquid from the chamber usually through
a dispensing nozzle. A conical spray pattern is the most commonly used.
[0003] For performing cleaning tasks inside the house, for example cleaning of large planar
floor coverings such as carpets and the like, it is necessary that the sprayer dispenses
liquid at atmospheric pressure, or low pressure, that is to say at less than 3 bar
of pressure at the nozzle outlet.
[0004] Moreover, when treating large planar surfaces of home coverings, for example carpets,
it is often very difficult to evenly reach the total surface of the carpet with a
conical-shaped spray. Indeed, a conical spray cannot reach corners - otherwise, the
user has to partially spray product on the walls- , and reaching surfaces underneath
furniture is also difficult. DE 19651477 (D1) is a German application to Thomas, Metall
und Elektrowerke. It discloses a portable vacuum cleaner with a spraying dispenser
for spraying a cleaning composition onto surfaces in a flat fan shape.
[0005] While allowing the user to spray a liquid into a flat fan jet, at low pressure for
in house purposes, the system of D1 still shows some disadvantages. Firstly, it is
still quite tough to reach difficult areas in the house using the sprayer of D1, such
as for example, underneath the furniture, because the spray nozzle is located onto
the sprayer's main unit, and it requires that the user manipulates the whole sprayer
to reach such areas, which is clearly undesirable. Secondly, the cleaning compositions
which are used to treat large surfaces may contain some compounds, for example surfactants,
which can be irritant for the human mucous membranes. Thus, it is important that the
sprayed particles be sprayed at a maximum distance form the user.
[0006] So there is a need for a portable spraying device that is easy to carry for in-home
tasks, and which is equipped with a means for reaching surfaces which are usually
difficult to reach - e.g. under furniture - without having to bend down. There is
also a need for a sprayer with a nozzle providing a spray pattern that allows the
user to reach difficult areas such as room corners and the like, for example a spray
with a flat fan shape.
[0007] It is therefore a purpose of this invention to provide a portable spraying device,
for dispensing a liquid at low pressure, wherein the spray pattern is in the shape
of a flat fan, and which is provided with a means for allowing easy access to difficult
areas to treat, and also a means for spraying the composition far enough from the
user's body.
Summary of the Invention
[0008] The present invention related to a portable device for spraying a liquid at low pressure,
said device comprising a spray arm, and characterized in that the spray arm comprises
at least one flat fan spray nozzle. Preferably, the liquid is a cleaning composition
for treatment of carpets and other large fabric coverings, more preferably, a composition
comprising surfactants. Also preferably, the portable device is electrically driven,
and/or the spray arm is extendible and/or detachable form the device's main unit.
Brief Description of the Drawings
[0009]
- Figure 1 shows a diagrammatic representation of a device which is an alternative embodiment
of the invention.
- Figure 2 shows the liquid-applying spray arm with tubing coiled outside the telescopingly
extendible wand, said spray arm being in the extended configuration.
- Figure 3 shows the liquid-applying spray arm with tubing coiled outside the telescopingly
extendible wand, said spray arm being in the collapsed configuration.
- Figures 4 A-B-C shows the anti-dripping system with umbrella valve.
- Figures 5 A-B shows the anti-dripping system with cone and spring elements, respectively
in closed and open positions.
- Figures 6 a, b, c and 7 show the vent and fluid transfer fitment to be adapted onto
the reservoir.
- Figure 8 shows a diagrammatic view of the flat fan with angles in the plan of the
fan (α) and in the plan perpendicular to the fan (β).
Detailed Description of the Invention
[0010] The present invention is directed to a packaged product. Said packaged product comprises
the combination of a product, for example a liquid composition within a reservoir,
with a portable device for delivering the product. Said portable device preferably
comprises a housing, a dispensing means such as a spraying arm, and a means for conducting
product from the reservoir to the spraying arm.
[0011] It is a preferred feature of the packaged product of the present invention that the
portable device comprises a manually or electrically driven pump. More preferably,
said portable device comprises an electrically driven pump which is used to pump product
from the reservoir through the spraying arm and out of the product dispensing opening
(or openings) located in the spraying arm to the surface to be treated. In this way,
the portable device connected to a reservoir constitutes an electrical spraying device.
The product dispensing openings are preferably nozzles which are selected so that
the sprayed product takes the form of a continuous stream or film, or of a discontinuous
stream or film of fine particles, or of a mist, or of a foam. It is most preferred
that the spray pattern is in the form of fine particles because this is the most efficient
way to cover a large surface area with a small volume of product with an even coverage.
Typically the product output is from about 20 ml/minute to about 400 ml/minute, and
preferably from about 150 ml/minute to about 250 ml/minute, the product being typically
suitable for spraying household cleaning or laundry products, or perfumes. In a preferred
embodiment, the packaged product is a cleaning solution used for the cleaning of surfaces
such as fabrics, carpets, floors, and ceilings.
[0012] It is preferred that the spray arm has one nozzle, but it may also have multiple
nozzles located along its length. The spray arm makes it easier to control where the
cleaning product is sprayed. For example, when cleaning carpets the spray arm makes
it easier to avoid spraying product onto furniture and walls, and also enables access
into corners which would otherwise be difficult to reach. Furthermore, an ergonomically
designed spray arm avoids the need for the user to have a bent back when spraying.
The portable device
[0013] The portable device comprises a means for conducting the product from the reservoir
through the spray arm, to the product dispensing opening from which said product is
dispensed. Said means for conducting the product is connected to the reservoir and
to the spray arm, for example via pipes, which can be for example flexible plastic
pipes. The means for conducting the product from the reservoir to the spray arm is
preferably contained into the housing, as well as the pipes, if any.
[0014] In a particularly preferred embodiment of the present invention, the means for conducting
the product from the reservoir through the spray arm to the product dispensing opening
comprises an electrically driven pump. The electrically driven pump may be, for example,
a gear pump, an impeller pump, a piston pump, a screw pump, a peristaltic pump, a
diaphragm pump, or any other miniature pump. In the preferred embodiment the pump
is a gear pump with a typical speed between 6000 and 12000 rpm.
[0015] The pump is preferably designed so that the pressure delivered at the nozzle outlet
is a low pressure which is defined as less than 3 bar.
[0016] The electrically driven pump must be driven by a means such as an electric motor.
The electric motor typically produces a torque between 1 and 20 mN.m. The electric
motor must, in turn be provided with a power source. The power source may be either
mains electricity (optionally via transformer), or it may be a throw-away battery,
or rechargeable battery. Most preferred are one or more AA rechargeable or disposable
batteries, the batteries being housed in the package. The voltage output of the battery
is typically between 1.5 and 12 Volts, with a preferred output between 3 and 6V.
[0017] In one optional embodiment of this invention, the pump is designed to be reversible,
so that it can dispense liquid from the reservoir, and suck liquid from a surface,
or only from the pipes of the portable device, back into the same or preferably another
reservoir. Typically, only small amounts of liquid can be sucked back from a surface,
and such a reversible pump is not intended to replace the use of a vacuum cleaner.
Several ways of inverting the rotation of the pump can be used. In one example, the
pump and motor are linked to a timer and an electronic circuit, such that after a
defined time (eg. 15 seconds) the motor is not used, it automatically starts again,
and its rotation side is reversed. As a result, the remaining product in the tubing
and the extension of the portable device is sucked back into the reservoir. As a consequence
when replacing a product by another one, it is easy to change the product without
mixing new and old products. For example, the consumer can use the portable. device
for dispensing a first type of composition, then wait for the pump to suck back said
first composition from the pipes, and then change the reservoir or its contents to
dispense a second composition without mixing of the two compositions inside the pipes.
The handling means
[0018] It is an essential feature of the device of the present invention, that it is a portable
device. Indeed, while carrying out tasks in the house, the device must be carried
in such a way that it is easy for the consumer to use both hands to manipulate the
spray arm. Portable is defined as opposed to devices which are mounted on chassis,
with or without wheels, or devices whose weight does not allow the user to carry it
during usage. The packaged product according to the present, invention preferably
comprises a holding means, which is more preferably integrated to the housing of the
portable device. The holding means may be any sort of handle which will allow the
user to pick up the packaged product and to carry it to the place where the spraying
is to be carried out. The handle can be part of the reservoir or of the housing of
the portable device. It is likely that the packaged product will be carried around
a whole room when a carpet is being cleaned. The handle may be a simple protrusion
or indentation which may be gripped by the user, or it may be a more sophisticated
design for ergonomic reasons.
[0019] In one alternative embodiment of the present invention, the housing of the portable
device comprises a means allowing the user to carry it without using hands. In a first
example, the housing comprises a clip which allows the user to hang said housing to
a belt. In another example, the housing comprises at least one shoulder strap which
allows to carry said housing on the shoulder/back. Other such means may be applied
which allow the user to use both hands for other tasks.
The reservoir
[0020] The portable device comprises at least one reservoir which can be of any type capable
of containing a product under liquid form - by liquid it is meant to include embodiments
when the product comprises a solid and a solvent for progressively dissolving said
solid. Also included are liquids comprising small particles in suspension -. Said
reservoir is preferably located into the housing of the portable device, and can be
made out of any suitable material, such as metal, alloy, glass, but is preferably
made out of plastic. It comprises at least one compartment comprising at least one
composition. Alternatively, the reservoir is a normal bottle to which the device is
connected, by screwing, plugging, bayonet fitting, or any other suitable means.
[0021] The at least one reservoir can be fixed into the housing of the portable device,
and then, preferably comprises one opening, more preferably a reclosable opening.
Alternatively, the at least one reservoir can be removable from the housing of the
portable device, so that it is replaceable when empty, or it can be refilled, for
example with tap water.
[0022] In a first embodiment, the portable device comprises one reservoir with one compartment,
comprising one or more composition(s), preferably one composition.
[0023] In a second embodiment, the portable device comprises one reservoir with at least
two different compartments, each of which can comprise different compositions, for
example non-miscible compositions or two chemically reacting solutions which react
once mixed. Such a reservoir is made for example by an extrusion blowing process.
[0024] In a third embodiment, the portable device comprises at least two separate reservoirs.
These reservoirs can have different shapes, for example they can be designed with
complementary shapes. Alternatively, different reservoirs can be plugged into the
portable device at different locations. Said reservoirs can comprise one or more compartments
comprising same, but most preferably different products.
[0025] In a forth embodiment, the portable device comprises at least one portion for connecting
a reservoir comprising a liquid such as a solvent or water, and at least one additional
portion for connecting a small cartridge of a concentrated composition, for example
under liquid, gel or granulated form. At the time the consumer uses the portable device,
the composition contained into the cartridge will be dissolved into the solvent or
water, and the resultant active liquid composition will be dispensed through the spray
nozzle. Alternatively, said cartridge is connected directly into one portion of a
reservoir. The cartridge can be for example screwed into an appropriate opening of
the housing, or of the reservoir. It comprises a seal portion, such that when fully
screwed, it sealably closes said appropriate opening.
[0026] In all of the preceding embodiments when the portable device comprises more than
one reservoir. The proportion of product pumped can differ from one reservoir to another.
For example, this is achieved by selecting pipes of different diameters for a reservoir
and another, or by adding a flow-control means to the pipes between one reservoir
and the pump.
[0027] In another embodiment, the present invention is a kit comprising the portable device
and at least one reservoir comprising a product. Preferably, the kit comprises the
portable device and a set of several removable reservoirs, each comprising a different
product. The different products can be products for treating different areas such
as carpets, kitchen surfaces, bathroom surfaces, cars or else.
The spray arm
[0028] It is an essential feature of the portable device of the present invention that it
is connected, preferably removably connected, to a spray arm or wand. The spray arm
can have a pre-determined length. However such a spray arm can be difficult to store,
and the spray arm is preferably extendible/retractable either by means of telescopic
or foldable configuration. A telescopic configuration can be a liquid tight telescopic
mechanism, or can have a tube running inside. A preferred embodiment is hereafter
described in detail.
[0029] The extendible spray arm (220) comprises a handle (231), to which is connected a
telescopingly extendible wand (232) of the spray arm, and a dispensing tube (233)
which is movably attached to said spray arm (220). It is another essential feature
of the present invention that the spray arm (220) further comprises a flat fan spraying
nozzle (230). Flat fan is defined as a spray generally shaped like a fan, wherein
the angle α of the spray in the fan plan is comprised within the range of 30 to 120°,
and the angle β of the spray in the plan which is perpendicular to the flat fan is
less than 20°, preferably less than 15°, as shown in figure 8. Preferably, the nozzle
is designed such that the flow rate is less than 500 ml/min. Furthermore, the nozzle
and the pump means are designed such that the pressure at the outlet of the nozzle
is less than 3 bar, which is usually so-called as "atmospheric pressure" or "low-pressure".
[0030] The flat fan spraying nozzle may be achieved by any type of structure. Examples of
flat fan shaped spraying nozzles are known for example in European patent EP.0.121035
B1 to Bowles fluidics Co. which discloses a oscillating nozzle for producing flat
fan pattern of the spray. Or in US patent US.5.133.502 to Lechler GmbH, which discloses
a flat jet nozzle for atomizing liquids.
[0031] In a preferred embodiment of the present invention, the flat fan comprises a chamber
with a liquid inlet, and a liquid outlet substantially in the shape of a slot.
[0032] It has been found that a fan shaped spray provides surprisingly improved dispensing
of a composition in comparison to other spray shapes which are typically used, such
as for example conical shapes, especially in view of the spraying conditions of the
cleaning composition. Indeed, when the user wants to treat a flat surface such as
carpet with a device whose nozzle sprays in a conical manner, there are portions of
the surface where the composition is sprayed twice or more (i.e. overlaps). For different
reasons (exposed hereafter, this is clearly undesirable, especially for the treatment
of carpets). More particularly, spraying a cleaning composition with a nozzle producing
a flat fan shaped spray, provides: uniform carpet appearance after treatment (i.e.
soil level, pile density, color brightness...etc.), no overwetting - since the user
covers square portions of the carpet instead of round portions with overlaps -, no
padding damage - use of classical spray shapes results in accumulated water in the
carpet, and excessive amount of water damages the carpet pad -, no resoiling - since
an excessive concentration of product leads to higher residue level and, in turn,
to high resoiling propensity -, no carpet finish damage - since there is no overwetting,
there is no excessive amount of water which is typically known to remove carpet finishes
-, and finally, no residues build-up which typically impact on carpet softness.
[0033] The length of the telescopingly extendible wand (232) as shown for example in figure
1, is reduced to less than 15 cm, preferably less than 10 cm, more preferably less
than 7 cm, when it is in collapsed configuration, while said telescopingly extendible
wand (232) can be extended to more than 50 cm, preferably more than 70 cm when the
spray arm (220) is in its fully extended configuration. At the same time, the external
and greatest diameter of the spray arm (220) does not exceed 5 cm, preferably not
more than 3.5 cm.
[0034] The spray arm (220) firstly comprises a handle (231), as shown in figures 1 and 2,
which is the most proximal element of said spray arm (220), i.e. the element which
is the closest from the user during use. It has an elongate shape, and can be made
out of any suitable material such as plastic, metal, alloy, cork, or a combination
of several materials, but preferably, the external surface of the handle (231) is
coated with an anti-slip, rubber-like material. In a preferred embodiment of the present
invention, the handle (231) comprises a hollow portion (234) inside which the dispensing
tube (233) is positioned. This hollow portion (234) is a cylindrical channel whose
diameter is slightly superior to the external diameter of the dispensing tube (233).
This channel is more preferably located along the great length of the handle (231).
Preferably, the handle's length is less than 20 cm, more preferably less than 15 cm.
[0035] Once the dispensing tube (233) of the spray arm (220) is connected to the source
of liquid, the spray arm (220) can be detached from said source of liquid before use,
or alternatively, it can stay attached to said source of liquid, for example, it can
be used while integrated to said source's main body. Preferably, the extendible spray
arm is removably secured to the source of liquid, such that it can be detached at
all times, for example to be arranged separately from the main body of the portable
device.
[0036] The handle (231) comprises a recess into which at least one portion (235) of the
telescopingly extendible wand (232) is located when the spray arm (220) is in its
collapsed configuration, as shown in figure 2. Preferably, the length of the telescopingly
extendible wand's portion which is protruding from the handle (231), when said telescopingly
extendible wand (232) is in full collapsed position, i.e. the portion which is
not arranged within said handle (231), is less than 50%, preferably less than 25%, of
the total length of said telescopingly extendible wand (232) in collapsed position.
In this way, while the user benefits from the complete length of the telescopingly
extendible wand (232), i.e. the substantially combined length of all segments of said
telescopingly extendible wand (232), she/he can benefit from a collapsed spray arm
(220) with a very short length.
[0037] Optionally, and while the spray arm (220) is framed such as to be as light as possible,
the handle (231) comprises a counterweight which is either a separate element which
is releasably connected, for example clipped or screwed, to said handle (231), or
which is integrated to said handle (231). Said counterweight may be useful in case
the weight of the device's distal end increases, for example when in extended position,
and/or during use when the dispensing tube (233) is filled with liquid.
[0038] The telescopingly extendible wand (232) of the spray arm (220) comprises a series
of at least two tubular members (241) movably connected one to the others. For clarity
purposes in the following description, it is defined that the spray arm (220) is oriented
and comprises a proximal end, near the handle (231), and a distal end to which the
liquid product is dispensed. The tubular members (241) can have any shape which allows
to connect them so as to build a rod-like extension which can be extended or collapsed
by sliding one member relatively to the preceding one. Any material may be used which
provide enough resistance to flexion, while being as light as possible. Such suitable
materials include for example thermoplastic resins, metals, alloys, wood fiber, carbon
fiber, or a blend of these. In a preferred embodiment of the present invention, the
tubular members (241) are made out of metal.
[0039] Each tubular member (241) is telescopingly engaged with and slideable along the adjacent
tubular members. Preferably, each tubular member (241) is shaped such as to be free
to slide inside the preceding tubular member, and such that the following tubular
member is free to slide into. However, the tubular members (241) can be "positionally
reversed" such that each tubular member slides along the outside of the preceding
tubular member. Sliding one tubular member inward or outward with respect to the adjacent
tubular members retracts or extends the telescopingly extendible wand (232) of the
spray arm (220) for storage or for cleaning and to meet particular work needs.
[0040] For some tasks, the user must be able to use the spray arm (220) in intermediate
lengths. For that purpose, the number of tubular members (241) is preferably more
than three, more preferably more than five. In a first embodiment of the present invention,
the tubular member's diameter and profile are so adjusted that, while one member is
free to slide relatively to the adjacent ones, the friction coefficient between two
connected members requires a certain strength to make them slide and they are not
free to slide only with their own weight. Rather, the user must apply a certain strength
to make them slide, and once they are set in a determined length, the friction is
enough to maintain this position during use or transportation. Suitable values for
the friction coefficient and suitable profile and diameter for the tubular members
will be chosen adequately by those skilled in the art.
[0041] At last, in any of the preceding embodiments of the present invention, at least one
portion of the proximal segment of the telescopingly extendible wand (232) of the
spray arm (220) is designed to fit inside the handle (231) when the spray arm (220)
is in the collapsed configuration. Preferably, the length of the telescopingly extendible
wand's portion which is protruding from the handle (231), when said telescopingly
extendible wand (232) is in full collapsed position, i.e. the portion which is
not arranged within said handle (231), is less than 50%, preferably less than 25%, of
the total length of said telescopingly extendible wand (232) in collapsed position.
[0042] The last tubular member (243), i.e. the tubular member which is the nearest from
the distal end of the spray arm (220), has a distal end with one or more, preferably
one nozzle member (230) secured at such end, said nozzle member being constructed
as hereabove described. Optionally, the nozzle member is detachable and can be replaced
by another nozzle member for which the spray pattern is different. This allows the
user to selectively chose the spray pattern relatively to the surface to clean. In
this case, the nozzle member is secured onto the distal tubular member of the spray
arm's telescopingly extendible wand (232) by screwing, clipping or any other releasable
means.
[0043] Alternatively, the nozzle member is designed so that it can be set-up to different
spray patterns.
[0044] Optionally, the spraying nozzle (230) is mounted to the telescopingly extendible
wand's distal segment (243) by a rotary attaching means, for example a ball/socket
joint, so that said spraying nozzle (230) can be manually oriented by the user to
facilitate access to surfaces to whom the access is difficult.
[0045] In a preferred embodiment of the present invention, the spray arm (220) is provided
with an anti-dripping valve (244). In a more preferred embodiment of the present invention,
said anti-dripping valve is located adjacent to the flat fan spraying nozzle (230).
At the time the user stops feeding the dispensing tube (233) with liquid, for example
by stopping the pump of the portable device, (for example an electrical sprayer),
there is still liquid in the tube. As a result, the liquid which remains in the tube
is very likely to be spilled when the user moves the spray arm (220), or when the
user collapses the telescopingly extendible wand (232) to arrange the spray arm (220).
Such spillage is clearly undesirable, and it is prevented by the use of the anti-dripping
valve (244). Said valve is preferably located in the distal portion of the spray arm
(220), more preferably connected between the dispensing tube (233) and the nozzle
member. Several anti-dripping valve (244) constructions may be applied in the present
invention.
[0046] In a first embodiment, the anti-dripping valve (244) is an umbrella (245) valve,
as shown in figures 4 A, B and C, which is integrated into a channel and secured in
place by a portion (246) of the channel which has a restricted diameter. As shown
in figure 4 B, the central portion of the valve comprises liquid channels (247) through
which the liquid is free to flow. As shown in figure 4 C, the umbrella (245) portion
of the valve is curved and flexible, and so positioned that it normally contacts the
walls of the channel. As a result, the liquid has to deform said flexible umbrella
(245) portion to flow. Such deformation can be achieved for example by pumping the
liquid from the reservoir of the portable device (for example an electrical sprayer),
however, as soon as the pump is stopped, the liquid charge inside the dispensing tube
(233) is not sufficient to deform the umbrella (245), the valve closes back, and the
liquid flow is stopped.
[0047] In a second embodiment of the present invention and as shown in figures 5 A and 5
B, the valve comprises a rigid housing (248), which comprises a hollow portion with
a conic wall (249). Inside the housing is also a movable cone (250), and a spring
element (251) which elastically presses the cone against the conic wall (249) of the
housing such as to create a liquid-tight and releasable seal. The cone is positioned
so as to face the liquid flow. When the liquid charge inside the dispensing tube (233)
is sufficient, for example, when the liquid is pumped from the reservoir of the portable
device (for example an electrical sprayer), the movable cone (250) is pushed by the
liquid and passes through the valve up to the nozzle member of the spray arm (220).
As soon as the liquid charge inside the tube is not sufficient, for example when the
pump of the electrical sprayer is stopped, the cone is pressed back against the conic
wall (249) of the housing by the spring, and the liquid flow is stopped.
[0048] The spray arm (220) further comprises a dispensing tube (233) which conducts the
liquid to dispense from a source, for example a reservoir or bottle connected to the
portable device (for example an electrical sprayer), up to the nozzle member of the
spray arm (220) to which it is connected in a liquid flow communication. The dispensing
tube (233) is attached in at least one point to the spray arm (220). It can be of
any suitable material such as for example a thermoplastic resin, natural or synthetic
rubber, a metal or an alloy, or a combination of the preceding materials. Preferably,
the dispensing tube (233) extends unbroken along the length of the spray arm (220),
from the proximal end to the distal end. More preferably, said dispensing tube (233)
is unbroken from the source of liquid, up to the nozzle member, as shown in figure
1. Such arrangement provides an effective cleaning solution discharge from the nozzle
member regardless of relative positions of the tubular members one to the other, while
providing the user with a leak-tight liquid applying spray arm (220).
[0049] In a first and preferred embodiment of the present invention, the dispensing tube
(233) is attached inside the handle (231) as shown in figure 1, said dispensing tube
(233) then comprises a coiled portion which is coiled outside the telescopingly extendible
wand (232) of the spray arm (220). Preferably, said coiled portion comprises at least
10 coils (252). The distal portion of the tube is connected to the nozzle member (10)
through a liquid-tight connection. The liquid flow is substantially the same in collapsed,
extended or intermediate positions of the spray arm (220).
[0050] In a second embodiment of the invention, the dispensing tube (233) is linear and
preferably made out of a non-extendible thermoplastic material. It is connected to
the source of liquid, by its proximal end. Said dispensing tube (233) is further connected
to the spray arm (220) by fish-rod like attachments, preferably in at least one point
of each tubular member. Alternatively, the dispensing tube (233) can be attached only
to the source of liquid, to the handle (231) of the spray arm (220), and then to the
nozzle member, but without or only partial link to the telescopingly extendible wand
(232) of the spray arm (220). Partial link means that the tube is attached in one
or two points only to the extendible portion of the spray arm (220). Such fish-rod
like attachments comprise for example annular rings made out of metal, plastic or
a combination of those, through which the tube is free to slide when the spray arm
(220) is extended or retracted. The distal end of the tube is connected in a leak-tight
way to the nozzle member of the spray arm (220).
[0051] In a third embodiment of the present invention, the dispensing tube (233) is linear
and made out of a rubber-like material, preferably silicone rubber. This material
gives the tube enough flexibility, so that when the spray arm (220) is extended, the
dispensing tube (233) elastically extends as well, but its diameter stays substantially
the same. As a result, the liquid flow through the nozzle member remains substantially
the same when the spray arm (220) is in collapsed, extended, or intermediate position.
[0052] From the foregoing, it will be appreciated that the quantity of relatively heavy
cleaning solution confined within the relatively small diameter dispensing tube (233)
is reduced. Furthermore, the materials which are chosen for making the different elements
of the spray arm (220) are light. As a result, the weight of the spray arm (220) is
thereby minimized and said spray arm (220) is very easy and less-tiring to manipulate,
even over long periods of time, especially when handled by women. Preferably the weight
of the spray arm is less than 200 g, more preferably less than 150 g.
The reservoir's venting means
[0053] The liquid reservoir is preferably provided with a venting means in order to allow
air into the reservoir as the product is pumped out. Venting can be obtained through,
for example, one way valve, venting membrane, or mechanically or electrically operated
valve. Alternatively the product may be contained within a flexible bag within the
liquid reservoir, so that the flexible bag collapses as the product is pumped out.
The liquid reservoir is also preferably provided with a means to be releasably engaged
with the pump/motor assembly. This means that when the reservoir is empty it can be
removed from the pump/motor assembly and either discarded or refilled. The full liquid
reservoir can then be reconnected to the pump for further use.
[0054] In a preferred embodiment of this invention, the liquid reservoir is a fluid filled
bottle which is provided with a vent and fluid transfer fitment that allows the contents
of the bottle to be vented while being transferred without the contents spilling when
the bottle is inverted. Referring to figures 6 A, B and C and 7, the preferred vent
and fluid transfer fitment (310) comprises a transfer fitment (311) having a transfer
check valve (312) and a venting check valve (313) and is shown in an unassembled (figures
6 A, B and C) and an assembled (figure 7) configuration. The transfer fitment (311)
is preferably a single molded part that contains both the transfer check valve (312)
and the venting check valve (313) (figures 6 A, B). However, the fitment (311) may
include a cap or closure (314) in which a separate transfer check valve (312) and
venting check valve (313) are inserted (figure 9 C) without deviating from the intent
of the invention.
[0055] In addition, the preferred transfer fitment (311) may have support ribs (315) which
add stability to the transfer fitment (311) and particularly to the transfer check
valve (312) as shown in figures 6 A, B. The transfer check valve (312) and the venting
check valve (313) are preferably duckbill valves which have an inherent sealing pressure
and which are oriented in the same direction. However, the valves (312) and (313)
may comprise a variety of valves without deviating from the intent of the invention.
For example, the check valves (312) and (313) may comprise umbrella valves, ball and
spring check valves or a slit valve. In addition, the venting check valve (313) may
be located elsewhere on the bottle (2) and/or in a different orientation without deviating
from the intent of the invention.
[0056] The preferred transfer duckbill valve (312) has an open end (312 a) and a closed
"beak" end (312 b) which remains in a closed position when the transfer duckbill valve
(312) is in the relaxed state (figure 6 A). The preferred venting duckbill valve (313)
also has an open end (313 a) and a closed "beak" end (313 b) which remains in a closed
position when the venting duckbill valve (312) is in the relaxed state (figure 6 A).
[0057] The preferred fitment (311) is attached to a fluid filled bottle (2), specifically
an opening (317), by snapping a snap bead (318) of the fitment (311) into a snap rim
(319) of the bottle (2). However, the fitment (311) may be attached to the bottle
(2) using screw threads (320) on a bottle finish (321) as is well known in the art.
After attaching the preferred fitment (311) to the bottle (2), said bottle may be
inverted without allowing the contents of the fluid within the bottle (2) to exit
due to the valves (312) and (313) being in the relaxed state as seen in Figure 9a
and the ends (312 b) and (313 b) remaining closed.
[0058] The preferred fitment (311) and bottle (2) assembly is connected to a receiver attachment
(322) which has a probe tip (323) and an air vent groove (324). The probe tip (323)
has a first and second open end (323 a) and (323 b), respectively. The first open
end (323 a) of the probe tip (323) deforms and opens the "beak" end (312 b) of the
transfer duckbill valve (312) upon insertion into the open end (312 a) (figure 7).
The second open end (323 b) of the probe (323) is preferably connected to a tube (233)
for guiding the fluid from the bottle (2) to a pump or reservoir (not shown). However,
the tube (233) and receiver attachment (322) may be formed as a single piece without
deviating from the intent of the invention.
[0059] When the bottle (2) is in an inverted orientation (figure 6 A), the internal static
pressure acting against the "beak" end (312 b) and (313 b) of the duckbill valves
(312) and (313), respectively, will seal the valves (312) and (313) tightly. Therefore,
the valves (312) and (313) prevent fluid from prematurely flowing out of the inverted
bottle (2) until the probe (323) of the receiver attachment (322) in inserted within
the transfer duckbill valve (312)
[0060] Upon insertion of the receiver attachment's probe (323) into the transfer duckbill
valve (312), the fluid is transferred by gravity through the probe tip (323) as it
deforms and opens the transfer duckbill valve (312). As a result, a vacuum (sub-atmospheric)
pressure is created within the bottle (2). When the vacuum is sufficient to overcome
the sealing pressure on the venting valve (313), a bubble of air will be drawn into
the bottle (2) along an air flow path (326) (figure 7) which quickly relieves the
vacuum pressure created within the bottle (2) by the fluid exiting and resumes the
sealing pressure. Preferably, the sealing pressure of the venting duckbill valve (313)
is less than the sealing pressure of the transfer duckbill valve (312). As a result,
the vacuum (sub-atmospheric) pressure created within the bottle (2) will cause the
venting duckbill valve (313) to open and not the transfer duckbill valve (312) beyond
the opening created by the displacement of the valve (312) due to the probe (323).
[0061] The air vent groove (324) in the receiver attachment (322) ensures that air can reach
the venting duckbill valve (313) and be drawn into the bottle (2) when sufficient
sub-atmospheric pressure is generated by the transfer of the fluid from the bottle
(2). As the probe tip (323) is pushed through the transfer duckbill valve (312) (figure
7), the probe (323) seals along the inside wall of the duckbill valve (312). In the
fully seated position (figure 7), the probe (323) extends through the open end (312
a) of the duckbill valve (312) and provides a fluid path to the tube (233).
The switch
[0062] The switch can be any suitable and ergonomic design to be operated usually by fingers
or thumb. The switch can be provided with child safety features.
The products
[0063] The products useful in the present invention are treating products providing a benefit
to the surface treated. Preferably such cleaning products comprise an active ingredient,
more preferably such cleaning products comprise a surfactant. Most preferably, the
composition which is sprayed is an aqueous cleaning composition. However, they can
also can comprise for example laundry or cleaning products, or perfumes, as well as
compositions comprising deodorizing ingredients such as cyclodextrines and substituted
cyclodextrines. Such deodorizing compositions are disclosed for example in EP 0 774
978; EP 0 776 220; EP 0 774 980 and EP 0 775 229, all of the preceding patent applications/patents
have been filed by the Procter & Gamble Company.
[0064] In the preferred embodiment in which the product is a cleaning composition, the most
useful components include surfactant; builders; bleach and bleach activators; enzymes
and enzyme stabilizers; soil release agents, chelating agents; antiredeposition agents;
aqueous or non aqueous dispersing agents; brightener; suds suppressor; dye transfer
inhibiting agents.
[0065] Non-limiting examples of surfactants useful herein typically at levels from about
1% to about 55%, by weight, include the conventional C
11-C
18 alkyl benzene sulfonates ("LAS") and primary, branched-chain and random C
10-C
20 alkyl sulfates ("AS"), the C
10-C
18 secondary (2,3) alkyl sulfates of the formula CH
3(CH
2)
x(CHOSO
3-M
+) CH
3 and CH
3 (CH
2)
y(CHOSO
3-M
+) CH
2CH
3 where x and (y + 1 ) are integers of at least about 7, preferably at least about
9, and M is a water-solubilizing cation, especially sodium, unsaturated sulfates such
as oleyl sulfate, the C
10-C
18 alkyl alkoxy sulfates ("AE
xS"; especially EO 1-7 ethoxy sulfates), sarcosinate surfactants, sulfosuccinate surfactants,
sulfosuccinamate surfactants, sulfosuccinamide surfactants, C
10-C
18 alkyl alkoxy carboxylates (especially the EO 1-5 ethoxycarboxylates), the C
10-18 glycerol ethers, the C
10-C
18 alkyl polyglycosides and their corresponding sulfated polyglycosides, and C
12-C
18 alpha-sulfonated fatty acid esters. If desired, the conventional nonionic and amphoteric
surfactants such as the C
12-C
18 alkyl ethoxylates ("AE") including the so-called narrow peaked alkyl ethoxylates
and C
6-C
12 alkyl phenol alkoxylates (especially ethoxylates and mixed ethoxy/propoxy), C
12-C
18 betaines and sulfobetaines ("sultaines"), C
10-C
18 amine oxides, and the like, can also be included in the overall compositions. The
C
10-C
18 N-alkyl polyhydroxy fatty acid amides can also be used. Typical examples include
the C
12-C
18 N-methylglucamides. See WO 9,206,154. Other suaar-derived surfactants include the
N-alkoxv nolvhvdroxv fatty acid amides, such as C
10-C
18 N-(3-methoxypropyl) glucamide. The N-propyl through N-hexyl C
12-C
18 glucamides can be used for low sudsing. C
10-C
20 conventional soaps may also be used. If high sudsing is desired, the branched-chain
C
10-C
16 soaps may be used. Mixtures of anionic and nonionic surfactants are especially useful.
Other conventional useful surfactants are listed in standard texts.
[0066] Figure 1 shows a diagrammatic representation of a preferred embodiment of the packaged
product or portable device (1) which can be used with either one hand, or with two
hands. The device is partially shown in cut-away cross-section. The portable device
(1) comprises a liquid reservoir which is a conventional bottle (2) from which liquid
is pumped by an electrical pump/motor (5, 6) through a dispensing tube (233) to a
spray arm (220) . The spray arm (220) is of the preferred type as herebefore described,
which comprises a handle (231), a flexible dispensing tube (233) coiled outside a
telescopingly extendible wand (232), said telescopingly extendible wand (232) being
partially arranged within the handle (231) when said spray arm (220) is collapsed.
The housing (204) also comprises a battery (7) and a switch (8). The spray arm can
be attached to the housing of the device (for example by a clipping mechanism) or
can be detached from the body of the device, the device being held in one hand, and
the spray arm being held in the other hand. The housing (204) is designed so that
the bottle (2) is inverted when the device is held by the handle (3) for use. The
advantages of this configuration are that no dip tube is required, and fully emptying
the bottle is easier. Furthermore, the short distance from the liquid to the pump
inlet will allow fast priming of the pump (5) when it is unprimed.
The process
[0067] Another aspect of the present invention is directed to the use of a portable device
comprising a spray arm with at least one flat fan-shaped nozzle as described hereinbefore,
for the purpose of cleaning carpets and other floor coverings, and other large surfaces
(for example walls, ceilings...). By cleaning, it is meant to include the notion of
maintaining the appearance of said carpets, floor coverings and other large surfaces.
[0068] The packaged product described in the present application is particularly suitable
for the treatment of carpets, floor coverings or other large surfaces. A suitable
process for treating carpets includes the steps of: (a) applying a carpet cleaning
composition onto the carpet in the form of a spray of droplets having preferably a
particle size distribution with a mean diameter D(v,0.9) of less than 1500 microns,
more preferably less than about 1000 microns, even more preferably less than about
750 microns, and most preferably between 350 and 10 microns, the amount of composition
applied onto the carpet being preferably from 1 ml to 120 ml, more preferably from
about 10 to about 80 ml, and even more preferably from about 20 to about 60 ml, and
yet more preferably from about 30 to about 50 ml, per square meter of carpet, and
(b) leaving said composition to dry onto the carpet, and (c) optionally removing it
by vacuum cleaning said carpet, or using a similar removing process, said composition
preferably being selected from those described in the applications incorporated herein
by reference and having preferably a residuality index of less than 40%, more preferably
less than about 60%, after drying and after vacuum cleaning with a conventional vacuum
cleaner, such as for example a Hoover® 1300W standard implement for carpet.
[0069] The process further preferably comprises an additional step of applying a mechanical
action to the carpet, once the composition has been applied, and prior to leaving
said composition to dry onto said carpet. This additional step may be required in
case of stains which are found particularly difficult to remove only by chemical action
and by vacuuming. Said mechanical action can be achieved by using a brush, a sponge,
a rubbing glove, a finger nail or any other similar means.
[0070] By "dry" it is meant herein the stage where at least 40%, preferably at least 60%
of the initial amount of composition dispensed onto the carpet is lost due to evaporation.
[0071] The residuality index after vacuum cleaning (TVRi) is defined as follow:
wherein:
Ws represents the initial weight of a carpet sample (prior to any treatment) ;
Wt represents the weight of the same carpet sample immediately after the composition
for the cleaning of the carpet has been applied thereto; Wt may be influenced by the
composition application rate (gr m-2 s-1) and/or the application time (seconds);
Wfv represents the final weight of the same carpet sample after having been vacuumed
with an Hoover® 1300W standard implement for carpet.
Ws, Wt and Wfv can be expressed in any weight unit provided that the same unit is
used for the three parameters.
[0072] A suitable test method to determine the residuality index is the one mentioned as
follows:
[0073] A square 10x10 cm carpet sample is weighted before and after submitting it to a vacuum
cleaning with a Hoover® 1300W for 10 seconds. In order to avoid interference of the
weight lost of the carpet itself (e.g. fibers) when submitted to vacuum cleaning in
the determination of the residuality index it is important to repeat the vacuum cleaning
several times as required and weight the carpet sample thereafter, unless the weight
loss due to the vacuuming is less than 5% of composition dosage (i.e., for a sample
of 100 cm
2 and a dosage of 50 gr/m
2, the loss due to vacuuming has to be less than 0.025 gr). The latest weight for the
carpet sample following the hereinbefore procedure is Ws.
[0074] Then the composition is sprayed onto the carpet in amount of 50 gr/m
2 and the sample is weighted thereafter to determine Wt. Then the composition is left
to dry 60 minutes and vacuum cleaned with a Hoover® 1300 W for 10 seconds. The step
of leaving the composition to dry on the carpet is of course performed under "normal
temperature" and "normal humidity conditions". By "normal temperature conditions"
it is meant herein, from 15°C to 25° C, preferably from 20° C to 25° C. By "normal
humidity conditions" it is meant herein, from 40 %RH (%-relative humidity) to 80 %RH,
preferably from 50 %RH to 65 %RH. Finally the sample is weighted again to determine
Wfv. The residuality index should preferably be at least about 40%, more preferably
at least about 60%, and even more preferably at least about 80%.
[0075] The method is especially useful for carpets that are new, or in near new condition,
and which are therefore not highly soiled. It is advantageous to clean such carpets
on a regular basis, at least about once every two months, preferably at least once
a month, more preferably at least once a week, and even more preferably at every few
days, e.g, from about 1-6, preferably 2-5 days. Soil that is left on a carpet tends
to migrate to the lower part of the carpet and/or get ground into the fibers and/or
backing thus making removal more difficult. The advantage of frequent cleaning is
that the carpet lasts longer and is in acceptable shape for a longer period of time.
In order to clean on a frequent basis, it is necessary to use a non-manually operated
sprayer to avoid making the consumer tire of the effort. By "non-manually operated"
it is meant that the spray dispenser can be manually activated, but the force required
to conduct the product from the reservoir to the dispensing nozzle is provided by
another, non-manual means.
[0076] Most preferably, the spray dispenser is a non-aerosol, mechanically or electrically
activated, pump-spray dispenser, especially as disclosed hereinbefore. As previously
described, said dispenser comprises a reservoir, a spray arm with dispensing nozzle,
and a means for conducting product from the reservoir to the dispensing nozzle, said
means being preferably a pump mechanism which securely screws or snaps onto the reservoir.
The reservoir comprises a vessel for containing the carpet cleaning composition to
be dispensed. The reservoir can be constructed of any conventional material including,
but not limited to: polyethylene; polypropylene; polyethyleneterephthalate (PET);
blends of polyethylene, vinyl acetate, and rubber elastomer. A preferred reservoir
is made of clear material, e.g., polyethylene terephthalate (PET). Other materials
can include stainless steel.
[0077] Other types of non-manually operated dispensers can also be used which comprise a
wide variety of dispensers as listed in the following examples. For example, aerosol
dispensers can be used although they are environmentally undesirable and quite expensive.
Said aerosol dispensers comprise a container which can be constructed of any of the
conventional materials employed in fabricating aerosol containers. The dispenser must
be capable of withstanding internal pressure in the range of from about 20 to about
110 p.s.i.g., more preferably from about 20 to about 70 p.s.i.g. The one important
requirement concerning the dispenser is that it be provided with a valve member which
will permit the carpet cleaning composition contained in the dispenser to be dispensed
in the form of a spray of very fine, or finely divided, particles or droplets as set
forth hereinbefore. The aerosol dispenser utilizes a pressurized sealed container
from which the clear, aqueous dewrinkle composition is dispensed through a special
actuator/valve assembly under pressure. The aerosol dispenser is pressurized by incorporating
therein a gaseous component generally known as a propellant. Common aerosol propellants,
e.g., gaseous hydrocarbons such as isobutane, and mixed halogenated hydrocarbons,
can be used. Halogenated hydrocarbon propellants such as chlorofluoro hydrocarbons
have been alleged to contribute to environmental problems, and are not preferred.
When cyclodextrin is present in the carpet cleaning composition for odor control reasons,
hydrocarbon propellants are not preferred, because they can form complexes with the
cyclodextrin molecules thereby reducing the availability of uncomplexed cyclodextrin
molecules for odor absorption. Preferred propellants are compressed air, nitrogen,
inert gases, carbon dioxide, etc. A more complete description of commercially available
aerosol-spray dispensers appears in U.S. Pat. Nos.: 3,436,772, Stebbins, issued April
8, 1969; and 3,600,325, Kaufman et al., issued August 17, 1971; both of said references
are incorporated herein by reference.
[0078] Preferably the spray dispenser can be a self-pressurized non-aerosol container having
a convoluted liner and an elastomeric sleeve. Said self-pressurized dispenser comprises
a liner/sleeve assembly containing a thin, flexible radially expandable convoluted
plastic liner of from about 0.010 to about 0.020 inch (i.e. from about 0.025 to 0.051
cm) thick, inside an essentially cylindrical elastomeric sleeve. The liner/sleeve
is capable of holding a substantial quantity of carpet cleaning composition product
and of causing said product to be dispensed. A more complete description of self-pressurized
spray dispensers can be found in U.S. Pat. Nos. 5,111,971, Winer, issued May 12, 1992,
and 5,232,126, Winer, issued Aug. 3, 1993; both of said references are herein incorporated
by reference. Another type of aerosol spray dispenser is one wherein a barrier separates
the carpet cleaning composition from the propellant (preferably compressed air or
nitrogen), as disclosed in U.S. Pat. No. 4,260,110, issued April 7, 1981, and incorporated
herein by reference. Such a dispenser is available from EP Spray Systems, East Hanover,
New Jersey.
[0079] Other non-manually operated sprayers include, but are not limited to, powered sprayers
other than the preferred ones disclosed hereinbefore, air aspirated sprayers, liquid
aspirated sprayers, electrostatic sprayers, and nebulizer sprayers. The carpet cleaning
composition is placed into a spray dispenser in order to be distributed onto the fabric.
[0080] Powered sprayers include self contained powered pumps that pressurize the aqueous
odor absorbing composition and dispense it through a nozzle to produce a spray of
liquid droplets. Powered sprayers are attached directly or remotely through the use
of piping/tubing to a reservoir (such as a bottle) to hold the carpet cleaning composition.
Powered sprayers may include, but are not limited to, centrifugal or positive displacement
designs. It is preferred that the powered sprayer be powered by a portable DC electrical
current from either disposable batteries (such as commercially available alkaline
batteries) or rechargeable battery units (such as commercially available nickel cadmium
battery units). Powered sprayers may also be powered by standard AC power supply available
in most buildings.
[0081] Nonlimiting examples of commercially available powered sprayers are disclosed in
U.S. Pat. Nos. 4,865,255, Luvisotto, issued Sep. 12, 1989 which is incorporated herein
by reference. Preferred powered sprayers are readily available from suppliers such
as Solo, Newport News, Virginia (e.g., Solo Spraystar™ rechargeable sprayer, listed
as manual part #: US 460 395) and Multi-sprayer Systems, Minneapolis, Minnesota (e.g.,
model: Spray 1).
[0082] Air aspirated sprayers include the classification of sprayers generically known as
"air brushes". A stream of pressurized air draws up the aqueous odor absorbing composition
and dispenses it through a nozzle to create a spray of liquid. The odor absorbing
composition can be supplied via separate piping/tubing or more commonly is contained
in a jar to which the aspirating sprayer is attached.
[0083] Nonlimiting examples of commercially available air aspirated sprayers appears in
U.S. Pat. Nos. 1,536,352, Murray, issued Apr. 22, 1924 and 4,221,339, Yoshikawa, issues
Sep. 9, 1980; all of said references are incorporated herein by reference. Air aspirated
sprayers are readily available from suppliers such as The Badger Air-Brush Co, Franklin
Park, Illinois (e.g., model #: 155) and Wilton Air Brush Equipment, Woodridge, Illinois
(e.g., stock #: 415-4000, 415-4001, 415-4100).
[0084] Liquid aspirated sprayers are typical of the variety in widespread use to spray garden
chemicals. The aqueous odor absorbing composition is drawn into a fluid stream by
means of suction created by a Venturi effect. The high turbulence serves to mix the
aqueous odor absorbing composition with the fluid stream (typically water) in order
to provide a uniform mixture/concentration. It is possible with this method of delivery
to dispense the aqueous concentrated odor absorbing composition of the present invention
and then dilute it to a selected concentration with the delivery stream.
[0085] Liquid aspirated sprayers are readily available from suppliers such as Chapin Manufacturing
Works, Batavia, New York (e.g., model #: 6006).
[0086] Electrostatic sprayers impart energy to the aqueous odor absorbing composition via
a high electrical potential. This energy serves to atomize and charge the aqueous
odor absorbing composition, creating a spray of fine, charged particles. As the charged
particles are carried away from the sprayer, their common charge causes them to repel
one another. This has two effects before the spray reaches the target. First, it expands
the total spray mist. This is especially important when spraying to fairly distant,
large areas. The second effect is maintenance of original particle size. Because the
particles repel one another, they resist collecting together into large, heavier particles
like uncharged particles do. This lessens gravity's influence, and increases the charged
particle reaching the target. As the mass of negatively charged particles approach
the target, they push electrons inside the target inwardly, leaving all the exposed
surfaces of the target with a temporary positive charge. The resulting attraction
between the particles and the target overrides the influences of gravity and inertia.
As each particle deposits on the target, that spot on the target becomes neutralized
and no longer attractive. Therefore, the next free particle is attracted to the spot
immediately adjacent and the sequence continues until the entire surface of the target
is covered. Hence, charged particles improve distribution and reduce drippage.
[0087] Nonlimiting examples of commercially available electrostatic sprayers appears in
U.S. Pat. Nos. 5,222,664, Noakes, issued Jun. 29, 1993; 4,962,885, Coffee, issued
Oct. 16, 1990; 2,695,002, Miller, issued Nov. 1954; 5,405,090, Greene, issued Apr.
11, 1995; 4,752,034, Kuhn, issued Jun. 21, 1988; 2,989,241, Badger, issued Jun. 1961;
all of said patents are incorporated herein by reference. Electrostatic sprayers are
readily available from suppliers such as Tae In Tech Co, South Korea and Spectrum,
Houston, Texas.
[0088] Nebulizer sprayers impart energy to the aqueous odor absorbing composition via ultrasonic
energy supplied via a transducer. This energy results in the aqueous odor absorbing
composition to be atomized. Various types of nebulizers include, but are not limited
to, heated, ultrasonic, gas, venturi, and refillable nebulizers.
[0089] Nonlimiting examples of commercially available nebulizer sprayers appears in U.S.
Pat. Nos. 3,901,443, Mitsui, issued Aug. 26, 1975; 2,847,248, Schmitt, issued Aug.
1958; 5,511,726, Greenspan, issued Apr. 30, 1996; all of said patents are incorporated
herein by reference. Nebulizer sprayers are readily available from suppliers such
as A&D Engineering, Inc., Milpitas, California (e.g., model A&D Un-231 ultrasonic
handy nebulizer) and Amici, Inc., Spring City, Pennsylvania (model: swirler nebulizer).
[0090] A preferred article of manufacture herein comprises a non-manually operated sprayer,
such as a battery-powered sprayer, and especially the one disclosed hereinbefore,
containing the carpet cleaning composition. More preferably the article of manufacture
comprises a combination of a non-manually operated sprayer and a separate container
of the carpet cleaning composition, to be added to the sprayer before use and/or to
be separated for filling/refilling. The separate container can contain a usage composition,
or a concentrated composition to be diluted before use, and/or to be used with a diluting
sprayer, such as with a liquid aspirated sprayer, as described herein above. Also,
the separate container should have structure that mates with the rest of the sprayer
to ensure a solid fit without leakage, even after motion impact, etc. and when handled
by inexperienced consumers.
[0091] A desirable article of manufacture can also comprise a non-manually operated sprayer
and/or carpet cleaning composition, preferably one that is substantially (e. g., >
about 40%) in a reservoir in association with a set of instructions to use the article
in a process (method) as described hereinbefore which is preferably limited as to
particle size and/or level of application and/or drying and/or vacuuming, so as to
clean carpets and especially to treat the carpets, and especially those that are new,
or new in appearance, with the desired frequency of treatment so as to maintain the
appearance and/or condition of the carpets. It is essential to inform the consumer
that the treatment can be used with this frequency, especially since the large amount
of active cleaning ingredients is removed. Optionally, when the composition contains
hydrogen peroxide and/or polymer as disclosed herein, it is important to advise the
consumer that the treatment will provide a solution to problems involving and/or provision
of a benefit related to those selected from the group consisting of: killing or reducing
microbes; softening; reducing time and/or effort involved in cleaning carpets, reducing
static; making the surface appear "fluffier"; and/or reduction in odors. It is important
that the consumer be aware of these additional benefits, since otherwise the consumer
would not know that the composition would solve these problems and/or provide these
benefits.
[0092] As used herein, the phrase " in association with" means the set of instructions are
either directly printed on the reservoir itself or presented in a separate manner
including, but not limited to, a brochure, print advertisement, electronic advertisement,
and/or verbal communication, so as to communicate the set of instructions to a consumer
of the article of manufacture. The set of instructions preferably comprises the instruction
to apply an effective amount of the composition, preferably by spraying, to provide
the indicated benefit, e.g. maintenance of carpet appearance, softness, and/or fluffy
appearance; antimicrobial action; anti-static effect, and/or reduction in time and/or
effort of cleaning and, optionally, the provision of odor control and/or reduction
and reduction in microbial contamination and/or insects.