[0001] The present invention relates to an urn for discharging powdery mortal remains from
the urn, which urn comprises
- a housing, which housing provides a chamber for receiving the powdery mortal remains,
- a discharge opening for the powdery mortal remains, which discharge opening is in
communication with the chamber, and
- a device for discharging a portion of the powdery remains.
[0002] An autonomous urn according to the preamble is known from
PCT/NL2007/000006. The urn disclosed here comprises an inlet-opening for rainwater. The urn known from
this publication has a device for the batchwise discharge of the powdery remains in
the form of a reservoir having a siphon. When sufficient rainwater has been collected
in the reservoir, it will drain via the siphon. Powdery mortal remains in the form
of ashes are then entrained by the water and discharged via the discharge opening.
When the urn is arranged above a hole in the ground, the ashes will end up in the
ground over time. The urn is therefore autonomous, i.e. once the urn is installed
for the gradual discharge of the ashes to the ground no human invervention is required.
[0003] Although the discharge will take place gradually, as is desired, the discharge process
may become disrupted as a result of which the ashes may be discharged poorly or even
not be discharged at all.
[0004] The object of the present invention is to provide an urn that is suitable for a more
reliable discharge of powdery mortal remains to the ground.
[0005] To this end, an urn according to the preamble is characterized in that the device
comprises
- a transport organ for transporting the powdery mortal remains towards the discharge
opening,
- a driving shaft for driving the transport organ, and
- a blade provided outside the housing, which blade is movable by the action of the
wind;
wherein the urn is arranged for converting wind energy into a movement of the transport
organ by means of the movable blade.
[0006] Powdery mortal remains are generally ashes obtained by cremation and optionally followed
by grinding such as by means of a ball mill. Other methods for processing a corpse
into a powdery material are known as well, such as a cryogenic method (freeze drying).
For the sake of brevity only, hereinafter the term ashes will be used, without the
invention being limited thereto.
[0007] Because of the use of wind energy, the urn can discharge ashes autonomously and gradually;
wherein the ashes remain relatively dry, retain their ability to flow better and can
be conveyed by the transport organ effectively.
[0008] According to a first possible embodiment the transport organ is a screw conveyor
which at a first section of the screw conveyor is in contact (open connection) with
the chamber in which ashes are present and at a second section of the screw conveyor
is in communication with the discharge opening for delivering ashes to this opening.
The urn may comprise a plurality of blades for directly (mechanically) or indirectly
(electrically) driving an actuator. In view of the force necessary, advantageously
a system for storage of electrical energy (such as a capacitor and preferably a battery)
will be provided which, in case it is charged sufficiently or to a chosen degree feeds
an electric motor which will drive the transport organ via a gearbox. In this way
powdery mortal remains are conveyed towards the discharge opening, wherein the transport
organ is driven for a predetermined period and/or until a predetermined degree of
discharge of the system for storage of electrical energy.
[0009] In case of a mere mechanical drive the driving shaft will typically protrude through
the housing in order to connect the blade with the transport organ, although it is
also possible by means of magnets without the requirement of a hole in the housing.
[0010] According to a favourable embodiment, part of the device selected from i) an actuator
for driving the transport organ, and ii) the transport organ, is housed inside the
urn.
[0011] Thus, the device is partially hidden from view.
[0012] According to a favourable embodiment, the urn at the underside is arranged for connecting
to a discharge conduit for discharging powdery mortal remains via the discharge opening.
[0013] Such an urn can be placed easily and, generally thereafter, be provided with the
powdery mortal remains.
[0014] According to a favourable embodiment, the blade is a blade of a wind vane.
[0015] Thus, a change of the wind direction is used for moving ashes from a location onto
where the ashes flowed to a location where the ashes can fall down. In particular,
the transport organ will take the form of an arm that is arranged transverse to a
driving shaft, for instance in the form of a flat bar or of a brush. Via an opening
near the underside of the urn ashes from the chamber can flow onto a collection surface.
Ashes will be discharged from this collection surface by the transport organ, allowing
new ashes from the chamber pour in onto it.
[0016] According to an alternative embodiment, the urn comprises a rotor which rotor comprises
a plurality of blades for converting wind into electric energy and the urn comprises
an electric actuator for driving the transport organ.
[0017] Thus, an urn can be provided that can discharge powdery mortal remains to the ground
on a daily basis. This can therefore also take place faster than with the known urn
which works with rainwater. It is also possible to do this at regular intervals by
using an electronic control unit. The actuator may be an electric motor. The actuator
may also be a hydraulic cylinder containing a working medium such as paraffin which
is heated and/or cooled using the electrical energy (for instance with a Peltier-element).
The working medium is preferably a super-expansive working medium of which the volumetric
coefficient of expansion plotted against the temperature shows a peak, and the peak
is present in a temperature range of -10°C to 60°C. Paraffin is an example of a super-expansive
working medium. It is a working medium that shows a non-linear expansion of > 0.01%
per°C over a (limited) temperature range, with which there is a transition point,
i.e. a temperature at which the coefficient of expansion is larger than with the adjacent
higher and lower temperature. The temperature-dependent expansion plotted against
the temperature will then for instance show a sigmoid curve.
[0018] An example of a super-expansive working medium is water. Water is suitable since
it expands when frozen. At the side of the piston, preferably a non-freezing liquid
that does not mix with water such as an oil will be present, wherein the specific
gravity of the non-freezing liquid and the orientation of the actuator will be chosen
such that at the location of of the piston non-freezing liquid is present.
[0019] Because of the use of an electric drive there is even a greater possibility to avoid
that the ashes become moist since an electric passage through the housing can more
easily be sealed properly than a mechanical passage.
[0020] Finally, the present invention relates to a method for discharging powdery mortal
remains to the ground by means of an urn which urn comprises
- a housing, which housing provides a chamber for receiving the powdery mortal remains,
- a discharge opening for the ashes, which discharge opening is in communication with
the chamber, and
- a device for discharging a portion of the powdery remains;
which method comprises the steps of, in arbitrary order
- placing the urn in the open air, and
- introducing the powdery mortal remains in the chamber of the urn; followed by the
step of
- gradually discharging powdery mortal remains present in the chamber of the urn to
the ground via the discharge opening;
wherein the urn is an urn according to any of the claims 1 to 5; and wind energy is
converted into a movement of the transport organ by means of the blade.
[0021] Thus, the powdery mortal remains can be discharged to the ground gradually.
[0022] In the scope of the present invention "gradually" means discharging powdery mortal
remains for a period of more than 1 week in either regular or irregular intervals.
In practice, this period may be many months or a few years.
[0023] The method also relates to the use of any of the subclaims of the urn in any combination
which, for the sake of brevity only, have not been repeated.
[0024] The present invention will now be illustrated with reference to the drawing where
Fig. 1 shows a cross-sectional view through an embodiment of an urn according to the
invention;
Fig. 2 shows a cross-sectional view of an alternative urn;
Fig. 3a shows a longitudinal sectional view by an alternative urn; and
Fig. 3b shows a horizontal cross-sectional view of the urn of Fig. 3A.
[0025] Fig. 1 shows a schematic cross-sectional view of an autonomous urn 100 according
to the invention, which in the embodiment illustrated here is an urn 100 which operates
based on wind energy.
[0026] The urn 100 comprises a first shell member 101, a second shell member 102 in the
form of a lid which fits with the first shell member 101, which shell members together
provide a housing which provides a chamber 103. The urn 100 further comprises a foot
104 provided with a mounting flange 105 with holes 106. The urn 100 comprises a discharge
opening 107 via which ashes in the urn 100 can leave the urn 100 and can be released
(Fig 4.) to the ground.
[0027] It can be seen that the chamber 103 is basically isolated from the environment, more
particularly that the urn 100 is arranged to substantially keep rainwater falling
on the urn 100 outside the chamber 103 of the urn 100. An hermetic seal is not necessary
but (rain)watertight is favourable for the capability of the ashes to flow freely.
[0028] The urn 100 comprises a device 120 which comprises a wind turbine 130 provided with
a small number of blades 131 (e.g. three or four) which comprise half spheres 132.
The wind turbine 130 is connected to a gearbox 150 which reduces the high number of
revolutions per minute of the wind turbine 130 to a large extent, for instance at
least 100 times. The gearbox 150 is connected to a driving shaft 160 which protrudes
through the bottom section 108 of the urn 100.
[0029] The bottom section 108 is provided with a through-opening 109 via which ashes present
in the chamber 103 of the urn can flow. These will end up on a disc 161. This disc
161 is connected to the driving shaft 160 and rotates due to the wind. The disc 161
is provided with a through-hole 162.
[0030] Below the disc 161 there is a cover plate 171 which is provided with a through-opening
172 which in vertical projection does not overlap with the through-opening 109 of
the bottom section 108.
[0031] The underside of the bottom section 108 is provided with a first brush ring 110 surrounding
the through-opening 109. Likewise, the underside of the rotatable disc 161 is provided
with a second brush ring 163 surrounding the through-opening 162.
[0032] Ashes are gradually discharged to the ground as follows. Ashes flow from the chamber
103 onto the rotatable disc 161. The wind causes the rotatable disc 161 to rotate.
The ashes that flowed from the chamber 103 onto the rotatable disc 161, are then held
in place by the first brush ring 110.
[0033] When the through-opening 162 of the rotatable disc 161 under the through-opening
109 rotates, ashes retained by the first brush ring 110 will flow from the rotatable
disc 161 and then fall onto the cover plate 171, where the ashes are surrounded by
the second brush ring 163. When the rotatable disc 161 rotates further, it ends up
at the location of the through-opening 172 in the cover plate 171, as a result of
which the ashes fall through this through-opening 172 and exit the urn 100 via the
discharge opening 107.
[0034] Fig. 2 shows an alternative embodiment of the urn of Fig. 1, wherein the wind turbine
130 drives a generator 231 via driving shaft 160 with which electricity is generated
that is stored in battery 232. These parts, as are ball bearings 290 for the driving
shaft 160, are housed in a pipe 291.
[0035] Under control of the electronic circuit 233, an electric motor 242 is actuated which
drives a transport organ 140 in the form of a screw conveyor via a gearbox 150'. Thus,
the ashes are conveyed from the chamber 103 via a through-opening 293 in the pipe
291 to above the discharge opening 107. Hence, the ashes can leave the urn 100.
[0036] For allowing the flow in the chamber 103 to the through-opening 293 in the pipe 291
at the bottom of the first shell member 101 a liquid mass has been provided whilst
the first shell member 101 was held askew. After the solidification of the liquid
mass (e.g. by cool-down/polymerizing) it can serve as guiding surface 280 (Fig. 3)
for ashes. By way of example polyester resin may be used as curable mass. Of course,
instead it is also possible to adapt the shape of the first shell member 101 for allowing
an effective flow of the ashes to the through-opening 293 in order to empty the urn
100 substantially.
[0037] The urn 100 is shown in a mounted state, wherein the urn 100 is secured by means
of bolts 296 to a socle 297. The socle 297 comprises a through-opening 298 and is
located in the ground 299.
[0038] Fig. 3A shows a vertical cross-sectional view of an alternative embodiment of the
urn 100. Fig. 3B shows a horizontal cross-sectional view of the urn of Fig. 3A at
the location of the through-opening 293.
[0039] In this embodiment of the invention the urn 100 comprises a blade 131 in the form
of a wind vane 131'. In this case, for discharging the ashes, the blade is pushed
away by the wind in case of a change of the wind direction.
[0040] Via the through-opening 293 in the pipe 291 ashes flow onto a horizontal plateau
394, as a result of which the outflow of ashes from the chamber 103 will stop automatically.
[0041] The driving shaft 160 is provided with an arm 361 which pushes the ashes lying on
the plateau 394 from the plateau 394 when the wind turns. This will fall on the chamfer
295 and the ashes exit the urn 100 via the discharge opening 107.
[0042] Blade 131 (i.e. wind vane 131') runs along part of the length substantially parallell
to the outer circumference of the urn 100 as a result of which wind blowing around
the urn 100 is used for exerting a maximum torque. Since the arm 361 is shorter than
the moment arm of the wind vane 131', a relatively large force can be exerted on the
ashes as a result of which the ashes can be pushed from the plateau effectively. If
so desired, unlike the embodiment illustrated here, the plateau 394 may be located
closer to the rotational axis of the driving shaft 160 and thus the arm 361 can be
shorter, allowing an even larger force to be exerted.
[0043] Fig 3A shows a long discharge conduit 370, e.g. having a length of 1.5 m, which is
introduced into the ground and to which the discharge opening 107 of the urn 100 is
connected. After the insertion of the ashes, the urn 100, the socle 297 and the discharge
conduit 370 can be removed and the hole in the ground 299 can be closed.
[0044] Fig. 3B shows schematically a horizontal cross-sectional view of the urn of Fig.
3A. Here the driving shaft 160 with arm 361, plateau 394, the through-opening 293
and the discharge opening 107 can be seen.
1. An urn (100) for discharging powdery mortal remains from the urn (100), which urn
(100) comprises
- a housing, which housing provides a chamber (103) for receiving the powdery mortal
remains,
- a discharge opening (107) for the powdery mortal remains, which discharge opening
(107) is in communication with the chamber (103), and
- a device (120) for discharging a portion of the powdery remains;
characterized in that the device (120) comprises
- a transport organ (140) for transporting the powdery mortal remains towards the
discharge opening (107),
- a driving shaft (160) for driving the transport organ (140), and
- a blade (131) provided outside the housing, which blade is movable by the action
of the wind;
wherein the urn (100) is arranged for converting wind energy into a movement of the
transport organ (140) by means of the movable blade (131).
2. The urn (100) according to claim 1, wherein part of the device (120) selected from
i) an actuator for driving the transport organ (140), and ii) the transport organ
(140), is housed inside the urn (100).
3. The urn (100) according to claim 1 or 2, wherein the urn (100) at the underside is
arranged for connecting to a discharge conduit (370) for discharging powdery mortal
remains via the discharge opening (107).
4. The urn (100) according to any of the preceding claims, wherein the blade (131) is
a blade (131) of a wind vane (131').
5. The urn (100) according to any of the claims 1 to 3, wherein the urn (100) comprises
a rotor which rotor comprises a plurality of blades (131) for converting wind into
electric energy and the urn (100) comprises an electric actuator for driving the transport
organ.
6. A method for discharging powdery mortal remains to the ground (299) by means of an
urn (100) which urn (100) comprises
- a housing, which housing provides a chamber (103) for receiving the powdery mortal
remains,
- a discharge opening (107) for the ashes, which discharge opening (107) is in communication
with the chamber (103), and
- a device (120) for discharging a portion of the powdery remains;
which method comprises the steps of, in arbitrary order
- placing the urn (100) in the open air, and
- introducing the powdery mortal remains in the chamber (103) of the urn (100);
followed by the step of
- gradually discharging powdery mortal remains present in the chamber (103) of the
urn (100) to the ground (299) via the discharge opening (107);
characterized in that the urn (100) is an urn (100) according to any of the claims 1 to 5; and
wind energy is converted into a movement of the transport organ (140) by means of
the blade (131).