Title of Invention

A DEVICE FOR PRODUCING BEVERAGES BY INFUSION

Abstract The present invention relates to a device for the production of beverages such as coffee by infusion of a product contained in a tablet (2). This device comprises an infusion chamber (1) adapted to receive a tablet (2) comprising two portions (3, 4) shaped to move toward or away from each other to close or open the infusion chamber (1), in which device only one of the portions has mobility and rotation so as to place the tablet (2) in abutment in said portion and that the portion (3) movable in rotation has mobility in translation to open or close the infusion chamber (1). According to the invention, the device comprises additional means for holding closed the two portions of the infusion chamber (1)
Full Text "Device for the production of beverages by infusion"
The present invention relates to a device for
production of beverages by infusion from a product
contained in a tablet.
It finds particular use in the field of the production
of coffee from ground coffee prepackaged in tablets.
Such tablets are already known and are generally
constituted in the form of an assembly of two sheets of
filter paper providing an intermediate space for packaging
ground coffee.
Various machines for extracting hot beverages from
ground coffee are known.
Particularly, WO 00/38558 discloses an extraction
chamber for an automatic machine for the preparation of hot
beverages, in which the extraction chamber is provided to
receive tablets or pellets filled with ground coffee.
The chamber is constituted in two parts, each movable
in a horizontal plane so as to be able to move apart or
toward one another.
Moreover, according to this document, the two portions
are also movable in an oscillating manner.
A machine thus provided gives general satisfaction but
requires driving the two constituent portions of the
chamber.
It is thus necessary to provide a sufficiently
powerful motor and a system of power transmission that is
relatively complicated, requiring the synchronization of
the movements.
There is also known from FR 2.745.995, an apparatus
for the production of beverages in which the infusion
chamber is constituted by two half recesses, one carried by
one surface of the body of the apparatus, the other fixed
on a surface of the heater, these two surfaces facing each
other.
The infusion chamber is formed when the two half
recesses meet.
Disassembly of the chamber takes place by a
translatory movement of one of the recesses.
The apparatus thus constituted requires the
association of different abutment means ensuring the
retention of the tablet at the time of supply, then during
its entry into the infusion chamber.
A movement of the abutment means is also necessary to
ensure the ejection of the used tablets.
The prior art disclosed by this reference requires the
separate provision of abutment means and ejection means for
the tablets.

There is known from U.S. 5,520,093 a coffee machine
for tablets in a strip in which the infusion chamber
comprises a portion movable in rotation and translation by
means of a member forming a cam. In addition to the fairly
complicated nature of the emplacement and injection of the
tablets, this document has a complicated and cumbersome
actuation necessarily requiring the provision of the
sealing of the chamber by means of the cam system.
EP 1 153 561 discloses a coffee machine for a capsule
having a movable cap to open or close the infusion chamber.
A complicated system is also provided to apply the capsule
in a gripped fashion.
Given the present actuation of infusion chambers, the
means for moving the portions of the chamber must be
designed to be heavy and complicated, in particular to
ensure the sealing in the closed position. It is thus
necessary to take into account the fact that a machine of
the espresso type produces hot water at a pressure often of
the order of 15 bars.
The present invention permits overcoming these
drawbacks.
For this purpose, it provides a device for the
improved production of beverages.
A first advantage of the invention is permitting the
carrying out of the opening and closing phases of the
infusion chamber as well as the performance of the
introduction and injection phases of tablets, by means of a
smaller number of movements and in particular by the
combined movement of rotation and translation of only one
of the constituent parts of the chamber.
Another advantage of the invention is not requiring,
in a preferred embodiment, but a single drive means for the

movement of rotation and movement of translation, thereby
ensuring synchronization reliably and at least cost.
According to a preferred modification, the invention
is such that it can be used and actuated by a user by
pulling a lever.
The use of the device provided here can thus be
compared to that of a conventional machine having a filter
door with a handle, thus providing the extraction phases of
the beverage in an automatic manner.
An additional gripping means functions as a supplement
to ensure or to perfect the sealing of the chamber in the
lixiviation position.
Other objects and advantages will become apparent from
the description which follows, of a preferred embodiment of
the invention, which is however not limiting.
The present invention relates to a device for the
production of beverages by infusion from a product
contained in a tablet, comprising an infusion chamber
adapted to receive a tablet and comprising two portions
arranged to move toward or away from each other to close or
open the infusion chamber, the device being such that a
single one of the portions has mobility in rotation adapted
to place the tablet in abutment in said portion and that
the portion movable in rotation has mobility in translation
to open or close the infusion chamber, characterized by the
fact that it comprises additional means for holding closed
the two portions of the infusion chamber.
According to preferred modifications, the device is
such that:
- the additional closure means are means for moving in
translation the portion fixed in rotation,
- the movement means are constituted by a jack,

- the jack is hydraulic and supplied by the heater
supplying the infusion chamber,
- the jack chamber is formed between a surface of the
heater and a movable member secured to the portion fixed in
rotation of the infusion chamber, the surface comprising a
supply outlet for hot water,
it comprises a resilient membrane for sealing
between said surface and said movable member to close in a
sealed fashion the jack chamber,
- the movable member comprises a supply passage of the
infusion chamber formed between the jack chamber and a
spray present on the portion fixed in rotation,
- the supply passage has a valve arranged to open the
supply passage from a pressure greater than the working
pressure of the jack,
- it comprises a return spring for the movable member
of the jack,
- it comprises a common drive member for mobility in
rotation and mobility in translation of the movable
portion,
- the drive means is a cam having:
• a first external bearing surface for a translatory
member coupled to the movable portion;
• a second external bearing surface for an end of a
pivoting arm coupled to the movable portion;
- the cam is actuated in rotation by a lever,
- the common drive means comprises a rotatable drive
shaft coupled to the movable portion by at least one rod
pivotally mounted between said drive shaft and said movable
portion,

- it comprises a translatory member secured to the
movable portion in its movement of translation and relative
to which it is movable in rotation,
it has guide means in translation for the
translatory member,
- the shaft is actuated in rotation by a lever,
- it comprises guide means for the tablet,
- the guide means comprise a slide way with at least
one groove adapted to receive the periphery of a tablet,
- the guide means are mounted in translation to follow
the movement of the parts moving toward or away from each
other,
- the movement of the movable portion is configured to
face the fixed portion in a parallel manner before coming
into contact, during the phase of closing the infusion
chamber.
The accompanying drawings are given by way of example
and are not limiting of the invention. They show only an
embodiment of the invention and will permit easy
comprehension of it.
Figure 1 is a cross-sectional view of the device
according to a first embodiment of the invention.
Figure 2 is another cross-sectional view of a
different configuration of the infusion chamber.
Figure 3 is a side view of the device according to the
invention.
Figures 4 and 5 are respectively top plan and front
views.
Figure 6 is a perspective view of the device during a
phase of extraction of coffee.
Figure 7 is a perspective view of the device in the
position of changing a tablet.

Figure 8 shows schematically the phases of movement of
the device according to the invention.
Figures 9 to 12 and 9bis, lObis show four successive
steps in the operation of the device.
Figures 13 and 14 show in side view the translator]/
movement of the guide means.
Figure 15 is a general perspective view of the device
of the invention.
Figure 16 is a top plan view.
Figures 17 and 18 are respectively side and
longitudinal cross-sectional views of the device of the
invention in the position of supplying tablets.
Figures 19 and 20 are respectively side and cross-
sectional views of the device of the invention in a
position of receiving tablets in the infusion chamber.
Figures 21 and 22 are respectively side and
longitudinal cross-sectional views of the device of the
invention in the extraction position.
Figure 23 shows in fragmentary cross-section the
device with a preferred embodiment of the additional means
for closing in the rest position.
Figure 24 shows an active closed position.
Referring to the drawings, and particularly to Figures
6 and 7, the device according to the invention has in a
conventional manner a heater 9 adapted to supply the
infusion chamber 1 with hot water for the extraction of the
material contained in the tablet and particularly of the
ground coffee.
As shown in Figure 2, a water circuit 10 is present
through the device with a portion 11 for admission of hot
water into the infusion chamber 1 and an outlet portion 12

opening into a trough 13 pouring the beverage into a funnel
14 to the receptacle of the user.
As shown in Figures 1-14, the end portions of this
circuit can be constituted in the external form of a
conventional filter door comprising a handle here shown by
the lever 15 and a portion forming a funnel 14.
The tablets used for the operation of the present
invention could be of a type now available on the market.
Preferably, but in a non-limiting way, there could be
used tablets 2 comprising a substantially flat and rigid
periphery ensuring holding the shape of the tablet.
The infusion chamber 1 is constituted by two portions
3, 4 adapted to be brought together to close the chamber 1
as is seen in Figure 2 or moved apart to open it as seen in
Figure 1.
Preferably, and in the rest of the description, it is
the portion 3 which moves in translation to move toward or
away from the other portion 4.
Moreover, the portion 3 is given a rotative movement
over a limited path, to pass between various positions
during operation.
In a preferred manner, there is used a same drive
means to ensure the translation and the rotation of the
movable portion 3.
There will be described hereafter successively two
modified embodiments of this drive means.
First embodiment:
See Figures 1 to 14.
There is shown by way of example in Figure 2, the
position of the axis 8 of rotation of the movable portion 3
and the axis 7 of its translation.

For what follows in the description and with reference
to the drawings, there will be shown a horizontal
extraction means (in which the tablet is positioned
substantially vertically and receives hot water in a
substantially horizontal circuit).
However, other orientations are possible without
departing from the scope of the invention.
The single drive means could be constituted by a cam
16 actuated in rotation and having an external surface
comprising two portions.
A first portion of the external surface 17 of the cam
16 ensures the bearing of the cam against a translatory
member adapted to transmit the movement of translation of
the movable portion 3.
The second external surface of the cam 16, shown at
18, in Figure 1, ensures the bearing of one end of the
pivoting arm 19 whose pivotal movement is transmitted to
the movable portion 3 to carry out its rotation.
The coupling between the pivoting arm 19 and the
movable portion 3 could be carried out by means of a finger
18 inserted in a fork 23 of the movable part, as shown in
Figure 1.
The pivotal axis of the pivoting arm 19 is provided by
a coupling member 21 also shown in Figure 1 and indicated
in Figure 2.
It is this coupling member which drives in rotation
the movable member 3 by bearing on the cam 16.
Other means for transmission of movements of rotation
and translation to the movable portion 3 may also be
envisaged.
Preferably, the pivoting arm 19 comprises an extension
forming a path limiter 20 and adapted to come into abutment

with an abutment surface when a predetermined angular
position of the movable portion 3 is reached.
Such is the case in the upwardly open bearing position
of the infusion chamber 1.
According to a first possibility, the cam 16 is driven
in rotation by a motor.
According to a second possibility, shown in the
drawings, the driving in rotation of the cam 16 is carried
out by the pressure of a lever 15 which can be actuated by
the user.
Figures 6 and 7 show two positions of the lever 15.
In the case of Figure 7, the position of the lever 15
is such that it causes a position of the cam 16
substantially corresponding to the operating phase of
Figure 1.
In this case, the movable portion 3 is inclined
downwardly to provide an abutment surface 6 in its upper
portion to coact with the external lower surface of the
tablet 2.
The surface 6 thus constitutes .an abutment in the
supply phase of the tablet 2.
According to the position of the lever 15 shown in
Figure 6, the cam 16 has caused a rotation to reach the
operating position shown in Figure 2, and in which the
infusion chamber 1 is closed in the extraction position.
The path of the lever 16 can be limited in rotation by
means of an abutment 28 of current designed for example, in
the form of a finger adapted to move in an oblong hole
secured to the chassis of the device.
To ensure or to optimize the sealing of the infusion
chamber 1 in the closed position, it is preferable to add

to the closing pressure caused by the user by means of the
lever 15, an additional pressure.
In this case, an additional means for holding closed
the two portions 3, 4 of the infusion chamber 1 is
constituted by a supplement, as will be described more
precisely in what follows.
Preferably, the device also comprises guide means for
the tablet 2 during its movement during operating phases.
In this case, guide means could be provided in the
form of a slide way 25 constituted by two grooves 26
adapted to embrace the periphery of the tablet 2.
The periphery of said tablet 2 can be inserted into
each of the grooves 26 thus constituted.
Guide means are preferably mounted in translation to
follow the movement apart and together of the two portions.
In this sense, these means have a movement coupled to
that of the translatory member 21 by means of pusher 31
shown particularly in Figure 7.
The pusher 31 comprises a portion with a gap 32
adapted to constitute two bearing portions of the pusher 31
on a corresponding surface of the guide means.
In this way, the movement of the guide means follows
that of the translatory member 21 in the course of the
operating phases.
Moreover, the vacuum between the two bearing surfaces
formed by the gap 32 ensures retardation in the movement of
the guide means adapted to ensure first of all an advance
of the movable portion 3 alone, and then a joint advance of
the guide means and the movable portion 3 toward the fixed
portion 4.
The pusher system thus constituted can be made in a
guided manner about two lateral guides 30a, 30b ensuring

the guidance and translation of the movable members and the
coherence of the constituent pieces of the device.
The phases of operation of the present invention are
more particularly shown in Figures 8 to 14.
Figure 8 schematically shows the different mobilities
of the portion 3 and the infusion chamber 1.
In this case, the arrows schematically show the
translation adapted to be carried out by the movable
portion 3 under the influence of the cam 16.
Cross-sections A-A and B-B in Figure 8 show moreover
in a schematic manner the provision of the cam 16 and
particularly the formation of two external bearing surfaces
17 and 18.
The surface 18 is adapted to receive the end of the
pivoting arm 19.
With reference to Figures 9 to 12 and 9bis, lObis,
four successive steps of operation of the invention are
shown.
In Figure 9, the cam 16 has been actuated to cause
rotation of the movable portion 3, tending to open it to
receive a tablet 2.
The upper portion of the movable portion 3 being out
of the way, the feed abutment surface 6 formed until now at
this point, is retracted and lets the tablet 2 fall by
gravity.
The latter is then received by the movable portion 3
in its internal volume and it is applied against the
surface 5 constituting a reception abutment.
Further rotation of the cam 16 gives rise to
translation of the movable portion 3 which is shown in
Figure 10.

However, the movable portion 3 also continues its
rotation so as to reach a position substantially parallel
to that of the fixed portion before the translatory
movement places them into contact. This is shown in
Figures 9bis and 10bis. In this way, the arrival of the
movable portion 3 takes place in an optimum manner, over
all the contact surface of the two portions 3, 4 in the
closed position.
As soon as the infusion chamber is closed, the hot
water is injected into the infusion chamber along the path
of the hollow arrows shown in Figure 10.
The beverage is recovered in the through and then in
the funnel.
As soon as brewing is completed, a reverse movement of
the cam 16 causes recoil of the movable portion 3 and its
pivoting in the trigonometric direction.
The movable portion being out of the way, the tablet 2
can be freed and fall by gravity to a recovery zone.
The thus-pivoted position of the movable portion 3
downwardly ensures the formation again of the abutment
surface 6 for supply in the upper portion of the movable
portion 3.
Figures 13 and 14 show in a side view the provision of
the translatory movement of the guide means when the latter
are present.
In this case, there is seen the pusher 31 adapted to
cause the advance of the guide means 25 to the extent of
the advance of the movable portion 3.
The gap 32 present on the pusher 31 however ensures
retardation in the translation of the guide means 25.
Figure 14 shows the end of the discharge of the tablet
2 which takes place as soon as the movable portion 3 is

retracted and while the guide means 25 are still in
position.
Once the tablet is discharged, the guide means 25
undergo in turn a translation in the direction indicated by
the hollow arrow.
The retraction taking place during translation of the
guide means 25 ensures the good freeing of the tablet 2
before return to the complete initial position of the
device.
Second embodiment:
Another actuation mode is presented here with
reference to Figures 15 to 22.
There is shown by way of example, in Figure 18, the
position of the axis 8 of rotation of the movable portion 3
and the axis 7 of its translation.
The single drive means is constituted by a drive shaft
33 with a horizontal axis of rotation and adapted to cause
the movements of the movable portion 3.
To do this, the shaft 33 coacts with at least one rod
34a, 34b but preferably two rods.
As can be seen for example in Figure 18, the rod 34a,
34b is mounted in pivotal connections 36, 37 on the one
hand on shaft 33 and on the other hand on the rear end of
the movable portion 3.
A translatory member 21 is also provided to follow the
translatory movement of the movable portion 3 and to ensure
the pivotal articulation about axis 8 of said movable
portion 3.
The translation of the member 21 is moreover guided by
guide means which could be constituted by two lateral
guides 30a, 30b as is seen in Figure 16.

According to a first possibility, the shaft 33 is
driven in rotation by a motor.
According to a second possibility, shown in the
drawings, the rotational drive is effected by the force of
a lever 15 that can be actuated by the user.
In this case, the movable portion 3 is inclined
downwardly to provide an abutment surface 6 in its upper
position to coact with the lower external surface of the
tablet 2.
The surface 6 thus constitutes an abutment in the
supply phase of the tablet 2.
To optimize the sealing of the effusion chamber 1 in
the closed position, it is preferably to add to the closing
pressure provided by the user by means of the lever 15, an
additional pressure.
In this case, an additional gripping means to close
the two portions 3, 4 of the infusion chamber 1 is
constituted supplementally as described later.
Preferably, the device also comprises guide means for
the tablet 2 during its movement during the operating
phases.
In this case, guide means can be provided in the form
of a slide way 25 constituted by two grooves 26 adapted to
encase the periphery of the tablet 2.
The periphery of said tablet 2 can be inserted in each
of the grooves 26 thus provided.
Guide means are preferably mounted for translation to
follow the movement toward and away from each other of the
two portions.
In this sense, these means have a movement coupled
with that of the translatory movement 21 by means of
pushers 31 shown particularly in Figure 17.

The pusher 31 comprises a recess portion 32 adapted to
constitute two bearing portions of the pusher 31 on a
corresponding surface of the guide means.
In this way, the movement of the guide means follows
that of the translatory member 21 in the course of the
operating phases.
Moreover, the vacuum constituted between the two
bearing surfaces formed by the gap 32 ensures a retardation
in the movement of the guide means adapted to ensure first
of all an advance of the movable portion 3 alone, then a
joint advance of the guide means and of the movable portion
3 toward the fixed portion 4.
The pusher system thus constituted can be provided in
a guided fashion about two lateral guides 30a, 30b ensuring
the guidance in translation of the movable members and the
cohesion of the constituent members of the device.
The phases of operation of the present device are more
particularly shown in Figures 17 to 22 and permit the
carrying out of the steps of production of the beverage
with the same modifications of configuration of the
infusion chamber 1 as in the case of the first embodiment.
Figures 17 and 18 show a first operating position of
the device in which the tablet 2 is in the abutment
position on the upper wall of the movable portion 3.
The lever 15 it itself in a predetermined angular
position, vertical in this case.
An actuation of the lever 15 in the trigonometric
direction permits arriving at the position shown in Figures
19 and 20 in which the tablet 2 is received in the movable
portion 3.
Between these two phases of movement, the drive shaft
33 has carried out a pressure of the rod 32a against the
16
rear portion of the movable portion 3 and has particularly
caused a rotation of the movable portion in the clockwise
direction.
Continuing the rotation of the lever 15, the shaft 33
gives rise to a supplemental pressure on the movable
portion 3 by means of rods 34a, 34b, this supplemental
pressure tending to cause translation of the movable
portion 3 and it closure to constitute the extraction
chamber 1.
There can be provided abutment surfaces particularly
on the translatory member 21 to limit the angular movement
of the movable portion 3.
Thus, in the position shown in Figures 21 and 22, the
movable portion 3 closes the extraction chamber 1.
When the infusion chamber is closed, hot water is
injected into the infusion chamber.
The beverage is recovered in the trough 13.
When brewing is completed, a reverse movement of the
shaft 33 causes retraction of the movable portion 3 and its
pivoting in the trigonometric direction.
The movable portion being out of the way, the tablet 2
can be freed and fall by gravity toward a recovery zone.
The thus-pivoted portion of the movable portion 3
downwardly ensures the formation once more of the abutment
surface 6 for supply in the upper portion of the movable
portion 3.
Figures 17, 19 and 21 show in side view the provision
of the translatory movement of the guide means when these
latter are present.
To this end, the pusher 31 is shown, adapted to cause
the advance of the guide means 25 with the advance of the
movable portion 3.

The gap 32 present on the pusher 31 however ensures a
retardation in the translation of the guide means 25.
The end of the evacuation of the tablet 2 takes place
when the movable portion 3 is retracted and when the guide
means 25 are still in position.
In the two embodiments thus provided, the actuation
can take place manually by the action of a handle or a
lever. The sealing is ensured or improved by additional
gripping means. There is thus obtained a machine of
lightweight design whilst maintaining its efficiency and in
particular a good sealing.
There will now be described a preferred embodiment of
the additional gripping means, more particularly with
reference to Figures 23 and 24.
In the case shown in Figures 23 and 24, the additional
gripping means ensure movement over a short translatory
path, of the portion 4 fixed in rotation. In this way,
when the movable portion 3 has reached the closure position
of the infusion chamber 1, this movement of short path in
translation permits ensuring or augmenting the relative
pressure of the two portions 3, 4 at the region of the
peripheral zone of the tablet 2. There is thus created a
peripheral sealing zone 49 particularly shown in Figure 24.
According to the illustrated embodiment, the
translatory movement means are provided by a jack 38 in
this case implanted conventionally in the device. Thus,
the jack 38 is hydraulic and supplied by the same source as
the infusion chamber 1, namely the heater 9. In this way,
the additional gripping means do not require the provision
of another hydraulic circuit.
As shown in Figures 23 and 24, the piston element of
the jack 38 is provided by a movable member 41 secured to

the portion 4 fixed in rotation so as to permits its
advance or retreat according to the activation position of
the jack 38. The fluid under pressure (in particular hot
water from the heater 9) is adapted to be received in a
chamber 39 to provide the pressure of the movable member
41. The chamber 39 is formed between the movable member 41
and a surface 40 of the heater 9, the surface 40 comprising
preferably a slight depression permitting the formation of
a sufficient volume for the chamber 39.
At the surface 40, the heater 9 comprises an outlet 42
permitting the arrival of hot water into the chamber 39.
To ensure the sealed closure of the chamber 39 of the
jack 38, sealing means are present. They can be
constituted by joints but preferably by the action of a
resilient sealing member 43 against visible in Figures 23
and 24.
The elastic sealing member is formed by a
substantially annular member connected securely and
sealingly by its external periphery to the surface 40 of
the heater and by its internal periphery to the movable
member 41. The elastic sealing membrane 43 deforms
according to the condition of actuation of the jack 38.
It will be easily understood that, when hot water is
admitted into the chamber 39 from the heater 9, the volume
of the chamber 39 tends to increase and a pressure is
applied to the corresponding surface of the movable member
41. This pressure gives rise to movement of the movable
member 41 and accordingly the advance of the portion fixed
in rotation 4. This advanced condition is shown in Figure
24. In this case, gripping is carried out.
In this condition, the hot water can be injected into
the portion 4 so as to produce forced brewing in the

infusion chamber 1. This injection takes place through a
spray 48 of conventional design constituting an internal
cladding of the portion 4.
The injection of hot water into the infusion chamber 1
is carried out by means of a supply passage 44 placing the
chamber 39 of the jack 38 into communication with the spray
45. To avoid circulation of water toward the spray 45,
both in the rest position of the gripping means and in the
open position of the infusion chamber 1, the invention
provides an advantageous supplemental characteristic.
Thus, as shown in Figures 23 and 24, the supply
passage 44 comprises a valve 46 configured to open the
supply passage 44 only beyond a pressure threshold of a
value higher than the working pressure of the jack 38.
In this way, the addition of hot water into the
chamber 39 from the outlet 42 of the heater 9 gives rise,
in a first instance, to the actuation of the jack 38 and
the advance of the portion 4 to produce additional
gripping.
Then, when gripping is obtained, the pressure
continues to increase in the volume 39 to reach a level
ensuring the movement of the valve 4 6 to open the supply
passage 44 and to produce the injection of hot water into
the infusion chamber 1.
By way of example, it is possible to adjust the
pressure threshold triggering the valve 46 to a level of
the order of 2 bars. This adjustment can be carried out by
the choice of the spring 48 ensuring return to the rest
position (closed) of the valve 46.
When the injection of water into the infusion chamber
1 is over, the admission of hot water into the chamber 39
is stopped so as to produce the return to the rest position

of the jack 38. This return can be carried out by means of
the resilient properties of the membrane 43. Moreover, a
return spring 4 7 is also provided for this purpose.
In this way, during manual actuation, the user need
only carry out an actuation of a limited force to place in
the closed position or open position the infusion chamber
1. When closure is carried out manually, the additional
gripping means ensure a perfect sealing of the infusion
chamber 1, at the peripheral sealing zone. Brewing can
then take place, and this with pressures that can
correspond perfectly to the pressures of machines of the
espresso type and in particular of the order of 15 bars.
Without recourse to these additional gripping means,
it would be forever difficult for the user to ensure
manually the sufficiently tight closure of the infusion
chamber 1 to operate at such pressure levels.
REFERENCES
1. Infusion chamber
2. Tablet
3. Movable portion
4. Fixed portion
5. Reception abutment
6. Supply abutment
7. Translatory axis
8. Rotational axis
9. Heater
10. Water circuit
11. Inlet
12. Outlet
13. Trough
14. Funnel
15. Lever
16. Cam
17. First surface
18. Second surface
19. Pivoting arm
20. Path limiter
21. Translatory member
22. Finger
23. Fork
25. Slide way
26. Groove
27. Periphery of tablet
28. Abutment
29. Cam axis
30a, 30b. Lateral guides
31. Pusher
32. Gap
33. Drive shaft
34a, 34b. Rod
35. Pivotal connection on the shaft
36. Pivotal connection on the movable portion
37. Coupling member
38. Jack
39. Jack chamber
40. Surface
41. Movable member
42. Outlet
43. Membrane
44. Supply passage
45. Spray
46. Valve
47. Return spring
48. Spring
49. Region of peripheral sealing
1. Device for the production of beverages by infusion of a
product contained in a tablet (2) , comprising an infusion
chamber (1) adapted to receive a tablet (2) and comprising
two portions (3, 4) adapted to be brought toward or away
from each other to close or open the infusion chamber (1) ,
in which device only one of the portions of mobility in
rotation adapted to come into abutment with the tablet (2)
in said portion and in which a portion (3) movable in
rotation has movement in translation to open or close the
infusion chamber (1), characterized by the fact
that it comprises additional means for pressing closed
the two portions of the infusion chamber (1), which are
means for movement in translation of the portion (4) fixed
in rotation.
2. Device according to claim 1 characterized by the
fact
that the movement means are constituted by a jack
(38) .
3. Device according to claim 2 characterized by the
fact
that the jack (38) is hydraulic and supplied by the
heater (9) supplying the infusion chamber (1).
4. Device according to claim 3 characterized by the
fact
that the chamber (39) of the jack (38) is formed
between a surface (40) of the heater (9) and a movable
member (41) secured to the portion fixed in rotation (4) of
the infusion chamber (1), the surface (40) comprising an
outlet (42) for hot water supply.
5. Device according to claim 4 characterized by the
fact
that it comprises a resilient sealing member (43)
between said surface (40) and said movable member (41) to
close in a sealed manner the chamber (39) of the jack (38).
6. Device according to claim 4 or claim 5
characterized by the fact that:
- the movable member (41) comprises a supply passage
(44) of the infusion chamber (1) formed between the chamber
(34) of the jack (38) and a spray (45) present on the
portion fixed in rotation (4),
- the supply passage (44) has a valve (46) adapted to
open the supply passage (44) at a pressure higher than the
working pressure of the jack (38).
7. Device according to any one of claims 4 to 6
characterized by the fact
that it comprises a return spring (47) for the movable
member (41) of the jack (38).
8. Device according to any one of claims 1 to 7
characterized by the fact
that it comprises a common drive means to move in
rotation and in translation the movable portion (3).
9. Device according to claim 8, characterized by the
fact
that the drive means is a cam (16) having:
• a first external surface (17) for bearing a
translatory member (21) coupled to the movable
portion (3);
• a second external surface (18) for bearing of one
end of a pivoting arm (19) coupled to the movable
portion (3).
10. Device according to claim 9, characterized by the
fact
that the cam (16) is actuated in rotation by a lever
(15) .
11. Device according to claim 8 characterized by the
fact
that a common drive means comprises a rotatable drive
shaft (33) coupled to the movable portion (3) by at least
one rod (34a, 34b) mounted pivotally between said drive
shaft (33) and said movable portion (3).
12. Device according to claim 11, characterized by the
fact
that it comprises a translatory member (21) secured to
the movable portion (3) in its translation movement and
relative to which it is movable in rotation.
13. Device according to claim 12 characterized by the
fact
that it has means (30a, 30b) for guiding in
translation the translatory member (21).
14. Device according to any one of claims 11 to 13,
characterized by the fact
that the shaft (33) is actuated in rotation by a lever
(15) .
15. Device according to any one of claims 1 to 14,
characterized by the fact
that it comprises guide means for the tablet (2).
16. Device according to claim 15, characterized by
the fact
that the guide means comprise a slide way (25) with at
least one groove (26) adapted to receive the periphery (27)
of a tablet.
17. Device according to claims 15 or 16, characterized
by the fact
that the guide means are mounted in translation to
follow the movement of the portions toward or away from
each other.
18. Device according to any one of claims 1 to 17,
characterized by the fact
that the mobility of the movable portion (3) is
arranged to face the fixed portion (4) in a parallel manner
before coming into contact, during the closing phase of the
infusion chamber (1).

The present invention relates to a device for the
production of beverages such as coffee by infusion of a
product contained in a tablet (2).
This device comprises an infusion chamber (1) adapted
to receive a tablet (2) comprising two portions (3, 4)
shaped to move toward or away from each other to close or
open the infusion chamber (1), in which device only one of
the portions has mobility and rotation so as to place the
tablet (2) in abutment in said portion and that the portion
(3) movable in rotation has mobility in translation to open
or close the infusion chamber (1).
According to the invention, the device comprises
additional means for holding closed the two portions of the
infusion chamber (1)

Documents:

108-kol-2006-translated copy of priority document.pdf

1299-KOLNP-2004-ABSTRACT 1.2.pdf

1299-KOLNP-2004-ABSTRACT-1.1.pdf

1299-kolnp-2004-abstract.pdf

1299-KOLNP-2004-AMANDED CLAIMS.pdf

1299-KOLNP-2004-CANCELLED PAGES.pdf

1299-kolnp-2004-claims.pdf

1299-KOLNP-2004-CORRESPONDENCE 1.1.pdf

1299-KOLNP-2004-CORRESPONDENCE 1.2.pdf

1299-KOLNP-2004-CORRESPONDENCE.1.3.pdf

1299-kolnp-2004-correspondence.pdf

1299-KOLNP-2004-DESCRIPTION (COMPLETE) 1.2.pdf

1299-KOLNP-2004-DESCRIPTION (COMPLETE)-1.1.pdf

1299-kolnp-2004-description (complete).pdf

1299-KOLNP-2004-DRAWINGS-1.1.pdf

1299-kolnp-2004-drawings.pdf

1299-KOLNP-2004-EXAMINATION REPORT.1.3.pdf

1299-KOLNP-2004-FORM 1-1.1.pdf

1299-KOLNP-2004-FORM 1-1.2.pdf

1299-kolnp-2004-form 1.pdf

1299-KOLNP-2004-FORM 18.1.3.pdf

1299-kolnp-2004-form 18.pdf

1299-KOLNP-2004-FORM 2-1.1.pdf

1299-KOLNP-2004-FORM 2-1.2.pdf

1299-kolnp-2004-form 2.pdf

1299-KOLNP-2004-FORM 3-1.1.pdf

1299-KOLNP-2004-FORM 3-1.2.pdf

1299-KOLNP-2004-FORM 3.1.3.pdf

1299-kolnp-2004-form 3.pdf

1299-KOLNP-2004-FORM 5.1.3.pdf

1299-kolnp-2004-form 5.pdf

1299-KOLNP-2004-FORM-27.pdf

1299-KOLNP-2004-GRANTED-ABSTRACT.pdf

1299-KOLNP-2004-GRANTED-CLAIMS.pdf

1299-KOLNP-2004-GRANTED-DESCRIPTION (COMPLETE).pdf

1299-KOLNP-2004-GRANTED-DRAWINGS.pdf

1299-KOLNP-2004-GRANTED-FORM 1.pdf

1299-KOLNP-2004-GRANTED-FORM 2.pdf

1299-KOLNP-2004-GRANTED-LETTER PATENT.pdf

1299-KOLNP-2004-GRANTED-SPECIFICATION.pdf

1299-kolnp-2004-international preliminary examination report.pdf

1299-kolnp-2004-international publication.pdf

1299-kolnp-2004-international search report.pdf

1299-KOLNP-2004-OTHERS 1.2.pdf

1299-KOLNP-2004-OTHERS-1.1.pdf

1299-KOLNP-2004-OTHERS.1.3.pdf

1299-KOLNP-2004-PA.pdf

1299-kolnp-2004-pct request form.pdf

1299-KOLNP-2004-PETITION UNDER RULE 137.pdf

1299-KOLNP-2004-REPLY TO EXAMINATION REPORT.1.3.pdf

1299-KOLNP-2004-REPLY TO EXAMINATION REPORT.pdf

1299-kolnp-2004-specification.pdf

1299-KOLNP-2004-TRANSLATED COPY OF PRIORITY DOCUMENT.pdf


Patent Number 247951
Indian Patent Application Number 1299/KOLNP/2004
PG Journal Number 23/2011
Publication Date 10-Jun-2011
Grant Date 06-Jun-2011
Date of Filing 06-Sep-2004
Name of Patentee COMPAGNIE MEDITERRANEENNE DES CAFES S.A.
Applicant Address ZONE INDUSTRIELLE, 9 EME RUE, F-06510 CARROS
Inventors:
# Inventor's Name Inventor's Address
1 BLANC, JEAN-PIERRE C/O. OFFICE MEDITERANEEN DE BREVETS D'INVENTION, ET DE MARQUEE, CABINET HAUSSENA, F-06000 NICE
2 FERRIER, CHRISTIAN C/O. OFFICE MEDITERANEEN DE BREVETS D'INVENTION, ET DE MARQUEE, CABINET HAUSSENA, F-06000 NICE
PCT International Classification Number A47J 31/40
PCT International Application Number PCT/FR2003/00612
PCT International Filing date 2003-02-26
PCT Conventions:
# PCT Application Number Date of Convention Priority Country
1 02/02733 2002-03-01 France
2 02/06765 2002-06-03 France
3 02/12295 2002-10-04 France