AU2012201622B2 - Cap extraction device - Google Patents

Cap extraction device

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Publication number
AU2012201622B2
AU2012201622B2 AU2012201622A AU2012201622A AU2012201622B2 AU 2012201622 B2 AU2012201622 B2 AU 2012201622B2 AU 2012201622 A AU2012201622 A AU 2012201622A AU 2012201622 A AU2012201622 A AU 2012201622A AU 2012201622 B2 AU2012201622 B2 AU 2012201622B2
Authority
AU
Australia
Prior art keywords
capsule
extraction
position
part
collar
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
AU2012201622A
Other versions
AU2012201622A1 (en
Inventor
Christophe Boussemart
Antoine Cahen
Jean-Luc Denisart
Antoine Ryser
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nestec SA
Original Assignee
Nestec SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to EP03015776.2 priority Critical
Priority to AU2010201251A priority patent/AU2010201251C1/en
Application filed by Nestec SA filed Critical Nestec SA
Priority to AU2012201622A priority patent/AU2012201622B2/en
Publication of AU2012201622A1 publication Critical patent/AU2012201622A1/en
Priority claimed from AU2014240190A external-priority patent/AU2014240190A1/en
Publication of AU2012201622B2 publication Critical patent/AU2012201622B2/en
Application granted granted Critical
Application status is Ceased legal-status Critical
Anticipated expiration legal-status Critical

Links

Classifications

    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47JKITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
    • A47J31/00Apparatus for making beverages
    • A47J31/24Coffee-making apparatus in which hot water is passed through the filter under pressure, i.e. in which the coffee grounds are extracted under pressure
    • A47J31/34Coffee-making apparatus in which hot water is passed through the filter under pressure, i.e. in which the coffee grounds are extracted under pressure with hot water under liquid pressure
    • A47J31/36Coffee-making apparatus in which hot water is passed through the filter under pressure, i.e. in which the coffee grounds are extracted under pressure with hot water under liquid pressure with mechanical pressure-producing means
    • A47J31/3604Coffee-making apparatus in which hot water is passed through the filter under pressure, i.e. in which the coffee grounds are extracted under pressure with hot water under liquid pressure with mechanical pressure-producing means with a mechanism arranged to move the brewing chamber between loading, infusing and ejecting stations
    • A47J31/3623Cartridges being employed
    • A47J31/3633Means to perform transfer from a loading position to an infusing position

Abstract

The device has a movable part (34) moving relative to a fixed part (30) and comprising a housing (35) for a capsule (32) to be extracted. A capsule positioning and introduction part has capsule guiding units (31) that is arranged so as to insert the capsule by gravity and position the capsule in an intermediate position. The movable part is configured for displacing the capsule from the intermediate position to extraction position during the closing of the device.

Description

AUSTRALIA PATENTS ACT 1990 COMPLETE SPECIFICATION FOR A STANDARD PATENT ORIGINAL Name of Applicant: Nestec S.A. Actual Inventors: Antoine Ryser and Christophe Boussemart and Jean-Luc Denisart and Antoine Cahen Address for Service is: SHELSTON IP 60 Margaret Street Telephone No: (02) 9777 1111 SYDNEY NSW 2000 Facsimile No. (02) 9241 4666 CCN: 3710000352 Attorney Code: SW Invention Title: Cap extraction device Details of Original Application No. 2010201251 dated 29 Mar 2010 The following statement is a full description of this invention, including the best method of performing it known to me/us: File: 48392AUP02 -2 CAP EXTRACTION DEVICE FIELD OF THE INVENTION [0001] The present invention relates to a capsule extraction device and the machine incorporating said device. BACKGROUND OF THE INVENTION [0002] Any discussion of the prior art throughout the specification should in no way be considered as an admission that such prior art is widely known or forms part of common general knowledge in the field. [0003] Capsule extraction devices already exist on the market. There is a need to propose an extraction device that makes it easier to insert and position the capsule in the device but that is both simple and low cost. [0004] One problem encountered is the positioning of the capsule in the device and the closing of the latter around the capsule to perform the extraction. The capsule usually has to be positioned by the user on a capsule support or in a housing, then the device is closed manually or automatically around the capsule. It is important to correctly position the capsule so that the device closes correctly around the latter and a good seal is thus achieved to ensure good conditions of extraction. Bad positioning may damage the capsule, and thus affect the conditions of extraction. The loading of the capsule must also be easy, without trial and error as to the correct position of the capsule in the device. The loading must also be as rapid as possible and not require excessive manipulations. [0005] So devices exist that propose the insertion of the capsule in a vertical plane and the movement of the extraction or infusion parts along a horizontal plane around the capsule. Such systems have the advantages of allowing a loading from the top piggy-bank fashion, and makes for rapid loading. The positioning of the capsule is then taken over by the movement of a movable part that pushes the capsule against another part such as a water heater. However, these devices are complex to produce and are not suitable for low-cost and therefore entry level coffee machines for the consumer market. They are therefore usually intended for the business market such as restaurants, bars or communities. For example, patent application WO 98/47418 relates to a device for the extraction of pre-measured inserts in which the inserts are inserted vertically and are extracted horizontally. The disadvantage of this device is that it -3 comprises two movable parts for the extraction, which makes the mechanical principle more complicated. [0006] US patent 5.776.527 relates to a device for the infusion of lens-shaped filter capsules comprising means of guidance and retention in the form of movable stops that are pushed by a movable piston horizontally towards a water heater. The stops return to their position under the effect of a spring to release the capsule which then falls under the effect of gravity when the stops are rotated to open downward. Such a device uses several combined movements of the capsule guidance and retention means. This makes the device complex and expensive to produce. [0007] Patent application EP 1 219 217 Al relates to a coffee machine comprising a capsule seat that oscillates between a position for receiving the capsule and a position for releasing the capsule. The seat is pushed against the water injection system by means of a piston that moves horizontally when the seat is in the vertical position. Due to the oscillating configuration of the seat and the compliance with three reference positions of the latter, and the number of pieces necessary, such a device is complex and costly to produce. [0008] It is an object of the present invention to overcome or ameliorate at least one of the disadvantages of the prior art, or to provide a useful alternative. DISCLOSURE OF THE INVENTION [0009] According to a first aspect of the invention, there is provided an extraction system comprising: a device for extraction of a capsule and a capsule that can be extracted in the device, the capsule having a guiding edge in the form of a collar, the device comprising a first fixed part, a second movable part that can be moved relative to the first fixed part, a housing configured to receive the capsule and defining, in a closed position of the second movable part against the first fixed part, an extraction position of the capsule on an axis in the housing, an insertion and positioning part comprising means for guiding the capsule arranged so as to insert the capsule by gravity and position the capsule in an intermediate position, the guiding edge of the capsule being taken charge of in the means for guiding, the means for guiding being insertion slides allowing the engagement of the collar; and a beverage delivery system, -4 wherein the second moveable part is so constructed and arranged to displace the capsule from the intermediate position to the extraction position when the second movable part is moved into the closed position, wherein the means for guiding comprises stopping means configured to retain the capsule in the intermediate position, the collar bearing against the stopping means in the intermediate position, the second movable part takes charge of the capsule to displace it from the intermediate position to the extraction position on the axis of the capsule in the extraction position in the housing such that in its movement, the second movable part acts on the capsule to move it downwards, the collar of the capsule passing beneath the stopping means, and to push it along the axis of the second movable part in its extraction position. [0010] According to a second aspect of the invention, there is provided a method for extracting a beverage from a capsule, the method comprising: inserting the capsule into an extraction device; immobilizing the capsule in an intermediate position, where the capsule is arranged on an axis offset relative to the axis of the capsule in an extraction position where the capsule is arranged on an axis of a moveable part of the device; moving the moveable part toward a fixed part of the device such that the moveable part forces the capsule out of the intermediate position and transfers it to the extraction position; and then feeding a liquid to the capsule and extracting a beverage from the capsule. [0011] According to a third aspect of the invention, there is provided a method for extracting a beverage from a capsule, the method comprising: providing a capsule comprising a guiding edge in the form of a collar and an extraction device comprising a first fixed part and a second moveable part that is moveable relative to the first part; inserting the guide edge of the capsule into means for guiding and guiding the capsule in its fall under the force of gravity to an intermediate position, the means for guiding comprising insertion slides allowing the engagement of the collar; the capsule being immobilized in the intermediate position using stopping means, in the intermediate position the capsule being arranged on an axis offset relative to the axis of the capsule in an extraction position, in the extraction position the capsule being arranged on an axis of the moveable part; moving the moveable part toward the fixed part of the device such that the moveable part forces the capsule out of the intermediate position to the extraction position during its travel towards the extraction position by causing the collar of the capsule to pass beneath the stopping means; and then feeding a liquid to the capsule and extracting a beverage from the capsule. [0012] According to a fourth aspect of the invention, there is provided a method for extracting a beverage, the method comprising: providing a capsule that can be extracted in an extraction device, the capsule having a guiding edge in the form of a collar; providing an extraction device for extraction of the capsule, the device comprising a first fixed part, a second movable part that can be moved relative to the first fixed part, a housing configured to receive the capsule and defining, in a closed position of the second movable part against the first fixed part, an extraction position of the capsule on an axis in the housing; inserting the capsule into the extraction device by an insertion and positioning part comprising means for guiding the capsule inserted under gravity and positioning the capsule in an intermediate position, the means for guiding taking charge of the guiding edge of the capsule, the means for guiding being insertion slides allowing the engagement of the collar; providing a liquid to the capsule; and liquid being extracted from the capsule in the extraction position, wherein the second moveable part is so constructed and arranged to displace the capsule from the intermediate position to the extraction position as the second movable part is moved into the closed position, wherein the means for guiding comprises stopping means configured to retain the capsule in the intermediate position, the collar bearing against the stopping means in the intermediate position, the second movable part taking charge of the capsule to displace it from the intermediate position to the extraction position such that in its movement, the second movable part acts on the capsule (i) to lower it such that the collar of the capsule passes beneath the stopping means, and (ii) to push it along the axis of the second movable part into its extraction position. [0013] According to a fifth aspect of the invention, there is provided an extraction system comprising: a device for extraction of a food product from a capsule to produce a beverage and a capsule containing a food product that can be extracted from the capsule in the device, the capsule having a peripheral edge forming a collar, the device comprising a first fixed part, -6 a second movable part, moveable relative to the first fixed part along an axis of movement, a housing configured to receive the capsule and define, in a closed position of the second movable part against the first fixed part, an extraction position of the capsule along an axis of the housing, an insertion and positioning part comprising guidance means having insertion slides for slideably receiving the collar of the capsule inserted into the insertion slides and to guide the capsule by gravity to an intermediate position, the guidance means further including stopping means arranged retain the capsule in the intermediate position against gravity such that the collar of the capsule bearing on the stopping means, and a beverage delivery system, wherein the second moveable part is constructed and arranged such that upon movement of the second movable part into the closed position, the moveable part acts on the capsule to displace it from the intermediate position forcing the collar of the capsule to pass the stopping means, and to push the capsule along the axis of movement of the moveable part to the extraction position. [0014] According to another aspect of the invention, there is provided a method for extracting a beverage from a capsule containing a food product, the method comprising: providing a capsule containing a food product for extraction in an extraction device, the capsule having a guiding edge in the form of a collar; providing an extraction device for extracting the food product from the capsule, the device comprising: a first fixed part; a second movable relative to the first fixed part along an axis of movement; and a housing configured to receive the capsule and defining, in a closed position of the second movable part against the first fixed part, an extraction position of the capsule on an axis in the housing; inserting the capsule into an insertion and positioning part of the extraction device, the insertion and positioning part comprising guidance means having insertion slides for slideably receiving the collar of the capsule inserted into the insertion slides and to guide the capsule by gravity to an intermediate position, the guidance means further including stopping means arranged retain the capsule in the intermediate position against gravity with the collar of the capsule bearing on the stopping means; moving the moveable part toward the fixed part of the device such that during its travel towards closed position, the moveable part engages the capsule retained by the stopping means in the intermediate position to force the capsule collar to pass the stopping -7 means allowing the capsule to be pushed to the extraction position by the moveable part; and then feeding a liquid to the capsule and extracting a beverage from the capsule. [0015] Unless the context clearly requires otherwise, throughout the description and the claims, the words "comprise", "comprising", and the like are to be construed in an inclusive sense as opposed to an exclusive or exhaustive sense; that is to say, in the sense of "including, but not limited to". [0016] Advantageously, the present invention at least in a preferred form, provides the consumer with an extraction system that is of simpler design, less costly and mechanically reliable. Moreover, at least in a preferred form the invention, advantageously, makes it easier to insert a capsule into a device for the extraction of this capsule; in particular, to allow the insertion and positioning of a capsule in an extraction device without trial and error, and without excessive manipulations and without risk of incorrectly positioning the capsule in said device. In addition, advantageously, the invention, at least in a preferred form limits the number of pieces necessary, in particular, the number of movable pieces of the device in order to reduce its complexity and its production cost. [0017] Advantageously, the capsules that can be extracted with the device according to the invention are of any type, for example open capsules, of the filter paper capsule type or also rigid or semi-rigid capsules of cylindrical shape or frustoconical shape that are the subject of patents in the name of the Applicant, that is EP 512'148 and EP 602'203. In a preferred embodiment, the capsule is asymmetric and comprises a guidance edge which is handled by the guidance means of the device. Thus, an asymmetric capsule along a guidance edge makes it possible to make the capsule tilt slightly relative to the extraction axis. Such a tilt has the advantage of being able to act on the capsule when it is re-established in the axis of extraction as will be explained hereinafter. However, the device according to the invention may also operate with symmetric capsules. [0018] The capsules may contain any type of soluble or extractable food product, for example roasted or ground coffee, soluble coffee, soluble cocoa, milk, tea, dehydrated substances for soups and other products and any combinations of these products. [0019] For reasons of simplicity, the device of the invention preferably comprises a first part that is fixed and a second part that is movable relative to the first part. However, there is nothing against providing a first part and a second part that are both movable.

-8 [0020] In fact, the device according to the invention advantageously makes it possible to cause the capsule to travel from an intermediate position to an extraction position: it is held in its intermediate position, it travels into its extraction position and when the second movable part is opened after extraction, the capsule is released naturally under the simple effect of gravitation. It falls into a drawer or any other means of used capsule retrieval and the consumer is ready to reload the device. [0021] Preferably, the extraction position corresponds to the position in which the movable part is closed against the fixed part while enclosing the capsule. [0022] It may be noted that the housing may be made in the movable part or the fixed part or else be divided between both in the fixed part and the movable part. [0023] So, to travel from the intermediate position to the extraction position, there are at least two preferred solutions. [0024] A first preferred solution consists of keeping the capsule in the intermediate position in a manner offset relative to the axis of the capsule in the extraction position, for example, so that the movable part in its movement acts on the capsule to lower it and push it along the axis of said movable part in its extraction position. The capsule may be offset along its recentering axis (or extraction axis), for example parallel to the latter, or be inclined relative to its recentering axis at a certain angle, preferably a small angle, less than 30 degrees. Such a solution makes it possible to prevent any mechanical complexity and uses a minimum of moving pieces. Specifically, the capsule may be simply kept in the intermediate position by static stopping means and it is the movable part that handles the moving of the capsule when it is moved toward the fixed part and then comes to position it in the extraction position. [0025] In a first preferred embodiment, the movable part is thus configured to force the capsule to travel beyond the stopping means when the capsule travels from its intermediate position to its extraction position. Thus, when the movable part drives the capsule, the latter being positioned in an offset or inclined axis, the capsule is forcibly re-established in the axis of movement of the movable part corresponding to the axis of the capsule in the extraction position, which forces the capsule to travel beyond the stopping means. Once the stopping means have been passed by the capsule, the latter is placed in the extraction position by at least one of the parts closing against the other and pressing the capsule against the extraction part. Once the two parts have reopened, the capsule is no longer held by the stopping means -9 and can therefore be released. It can be understood that such a configuration provides more simplicity and reliability than the known systems. [0026] A second possibility is that the movable part simply pushes the capsule in its axis of travel into its extraction position. Thus, the device comprises stopping means configured to hold the capsule in the intermediate position along an axis substantially coaxial with the axis of the housing. In a preferred embodiment, the movable part acts on the opening of the stopping means in order to move them aside when the capsule travels from its intermediate position to its extraction position. [0027] The fixed part comprises a guide body for the movement in translation of the movable part toward the fixed part. The guide body may, for example, be oriented substantially horizontally to guide the movable part in a horizontal movement. This guide body consists, for example, of at least two rails, preferably four guide rails. The device according to the invention allows an extraction by horizontal water injection. The movable part is preferably substantially cylindrical. [0028] In the device according to the invention, the insertion and positioning part of the capsule is placed in front of and perpendicular to the guide body and comprises at least one guidance means. Preferably, it comprises two guidance means. These means may be of any kind; for example, in the case of the extraction of a capsule according to patent EP 512'148, they are insertion slides allowing the engagement of the capsule collar. [0029] To keep the capsule in the intermediate position, in a first embodiment, the guidance means comprise at least one stopping means placed at the same level in order to keep the capsule in said intermediate position. Preferably, the guidance means comprise two stopping means. These means may be of any kind, for example stopping bosses, of just sufficient height to immobilize the capsule. The bosses interact with an edge of the capsule, such as a collar, for example. The bosses thus hold the capsule by the collar bearing on the bosses. The passage from the bearing position to the release position may be achieved by forcing the collar to travel beyond the bosses, the latter being able to be fixed or elastically retractable. [0030] In another embodiment of the device according to the invention, the guidance means are pivoting and form or comprise stopping means arranged to immobilize the capsule in the intermediate position when the movable part is in the open position and to release the capsule when the movable part is in the closed position. These guidance means are actuated in the immobilization or release position by an actuating lever, mounted rotatably and placed on the -10 outside of the movable part: this lever, by the movement of the movable part, places the guidance means in the immobilization or release position. [0031] In a final embodiment of the device according to the invention, the latter comprises, in front of the guide body, a retractable stop, placed beneath the movable part. This retractable stop is also actuated by the movement of the movable part: it makes it possible to keep the capsule in position when the movable part is in the open position. [0032] The device also comprises an extraction plate toward which the movable part moves the capsule in the extraction position. The capsule usually comprises an extraction face which is placed in contact with, or at least is brought sufficiently close to, the extraction plate when the device is closed. If a filter paper capsule is extracted, this plate is a simple plate pierced with holes to allow the extraction liquid to pass through. If the capsule is a capsule according to the two patents mentioned hereinabove, such as for example a capsule having a face intended to tear as the pressure rises in the capsule, it is a plate comprising either pyramids or spikes as mentioned in the patents EP 512'142 and EP 604'615. [0033] The movable part is moved by the means providing the movement into the open and closed position. These means may take various forms. Use is preferably made of means that are mechanically simple, such as systems with transmission by rods combined with an immobilization system of the ball-and-socket joint type. Any other solution giving a substantially linear movement is also possible, for example hydraulic, electric or mechanical systems, for example with screws. [0034] As already mentioned hereinabove, at the end of extraction, the opening of the movable part allows the capsule to fall by gravitation. [0035] The operation of the device in the first embodiment is as follows: the consumer inserts a capsule via the insertion slide. The capsule is guided, for example, by a peripheral edge forming a collar which is inserted into said slide. The stopping means immobilize the capsule in the intermediate position; in particular, its peripheral edge is held by the stopping means. The consumer acts on the means allowing the closure of the movable part, so that the movable part takes the capsule into its housing and lowers the axis of the capsule to bring it into the axis of movement of the movable body, which has the effect that the collar of the capsule passes over the stopping means and is positioned in the extraction position beneath these stopping means. The extraction takes place and when the movable part is opened, the capsule falls by gravitation because it is no longer held by the stopping means.

- 11 [0036] Figures 7 to 13 below show the operation in the other embodiments. [0037] The device according to the invention is incorporated into a coffee machine or other extraction system comprising furthermore a water tank, a water pipe, a pump for moving the water, means of heating the water and a water outlet in the movable part and any other element normally present in a coffee machine or other extraction system. "Other extraction system" means multi-drink, espresso and other extraction systems. [0038] The invention also relates to a coffee machine comprising the device thus described. The machine furthermore comprises a water tank, a water pipe, a pump for moving the water, means of heating the water and a water outlet in the movable part of the device of the invention. BRIEF DESCRIPTION OF THE DRAWINGS [0039] One or more preferred embodiments of the invention will now be described, by way of example only, with reference to the accompanying drawings in which: [0040] Fig. 1 is a view in perspective of a device according to the invention in the open position, [0041] Fig. 2 is the same view as that in figure 1, without the guide body so that it is easier to understand the movement of the movable part, [0042] Fig. 3 is a view in perspective of the device according to the invention in the closed position, [0043] Fig. 4 is a side view in the closed position, [0044] Fig. 5 is a view in the axis A of positioning the capsule in the intermediate position, and [0045] Fig. 6 is the same view as in figure 5 with the capsule in the extraction position, [0046] Fig. 7 is a view in perspective according to a second embodiment, with the movable part in the closed position, -12 [0047] fig. 8 is a view in perspective according to the preceding figure, with the movable part in the open position, [0048] Figs. 9 and 10 are views in the axis of the extraction plate, [0049] Figs. 11 to 13 are schematic views of the device according to the invention in a final embodiment. PREFERRED EMBODIMENTS OF THE INVENTION [0050] With reference to figures 1 to 6, the extraction device 1 comprises a fixed part 2 and a movable part 3. The part 3 comprises a housing 4 for the capsule to be extracted. The insertion and positioning part of the capsule 16 comprises two guidance means 6, 7, in which the capsule slides for positioning it. The capsule may thus be furnished with a collar which slides across the guidance means. The capsule is held in a position offset relative to the axis 25 of movement of the movable part. Since the capsule is asymmetric relative to its collar, the capsule also inclines slightly because its center of gravity is offset relative to the collar. This offset assists with the capsule being received by the housing of the movable part when it moves. The movable part 3 is moved by means 8 closing and opening it. These means consist of a ball-and-socket joint system comprising a lever arm 9 fixedly attached to an operating shaft 10. This shaft is fixedly attached to two pairs of rods respectively 11 and 12. The rods 11 and 12 are joined together along a spindle of the rods 13. The rods 12 are fixedly attached by a system of screws 18 to the movable body 3. The movable body 3 moved by the ball-and socket joint system slides in a guide body 14 consisting of four rails 15. When the ball-and socket joint system closes, the spindle 13 of the rods is stopped in its movement by the stop 24. The capsule 16 is designed to go and press against an extraction plate 17 when said capsule is extracted. The drink flows through the pouring system 19 into a cup not shown. The device according to the invention finally comprises, in the guidance means 6, 7, two identical stopping means 20 allowing the capsule to be held in the intermediate position. The screws 21, 22 make it possible to fixedly attach the pouring system to the extraction plate. A water outlet 23 is provided on the rear of the movable body. [0051] The device according to the invention operates as follows: the consumer inserts the capsule 16 through the insertion slides 6, 7. The capsule slides until it reaches the stopping means 20: the collar of the capsule presses against these means and the capsule is in the intermediate position, as is also clearly seen in figure 5: the axis of the capsule is indicated by reference number 26 and the axis of the movable body by reference number 25. Since the -13 capsule is asymmetric relative to the plane passing through its collar, the axis of the capsule tends to incline slightly relative to the axis of movement of the movable part. The consumer then operates the lever 9, which moves the movable body 3 via the rod system. This movable body moves along its axis 25: during this movement, it causes the capsule 16 to enter into its housing 4, which has the effect of lowering the axis 26 of the capsule toward the axis 25 of the movable body. The consequence is that the collar of the capsule passes beneath the stopping means 20. The consumer then gives the instruction to feed the hot water through the pipe 23 in the movable body: the water traverses the capsule; through the rise in pressure, the capsule opens against the extraction plate and the coffee flows through the outlet 19 into a cup placed beneath. When the extraction is complete, the consumer raises the lever 9, which sets the movable body in motion rearward, releases the capsule which is no longer held and which thus falls into a used capsule recovery system. The device is then ready for the next extraction. [0052] With reference to figures 7 to 10, the device according to the invention is more represented relative to the means of guiding and immobilizing the capsule, than relative to the movable part and the means of moving said movable part. The extraction plate 30 comprises, as a means of guiding 31 the capsule 32, two elements pivoting about a spindle 33. Each pivoting element comprises two positioning stops, one internal 39, the other external 40, better shown in figures 9 and 10. The movable part 34 comprises a housing 35 for the capsule and on either side a boss 41. The means for moving the movable part are not shown. On both sides of the movable part, an actuating lever 36 has been placed, turning along the axis 37 and comprising a movement finger 38 of the guidance means 31 and two zones of action, front 42 and rear 43, of said actuating lever 36. [0053] The operation is as follows: [0054] In the open position, that is according to figure 8, the movement finger 38 of the actuating lever 36 holds the pivoting guidance means 31 in the position of retention of the capsule 32 (figure 10), because said finger acts on the internal stop 39 of the pivoting element 31. When the movable part 34 moves toward the extraction plate 30, the boss 41 releases the front action zone 42 and goes to position itself toward the rear action zone 43, so that the movement finger 38 pushes the external positioning stop 40 outward. The consequence of this is that the pivoting guidance means moves away, which means that, when the movable part is opened, the capsule will no longer have any retention. [0055] Figures 11 to 13 give another embodiment of the immobilizating of the capsule. The fixed part 50 comprises an extraction plate 55 and a drink pouring system 53. Beneath the - 14 intermediate positioning location of the capsule 56, there is a retractable stop 51, that rotates on the spindle 54. The finger 57 makes it possible to retain the capsule. Finally the device comprises an element 52, fixedly attached to the movable part and thus acting on the retractable stop to open it and close it. [0056] The operation is as follows: [0057] Figure 11 shows when the movable part is in movement to open. So that the element 52 causes the retractable stop to tilt downward, which releases the capsule. Figure 12 shows the end of the opening stroke of the movable part, when the retractable stop has returned to the position for immobilizing the capsule 56. Finally, figure 13 shows the position of the retractable stop at the time of extraction of said capsule 56. [0058] It is well understood that the device according to the invention forms part of a coffee machine comprising all the elements making it possible to extract the capsules, that is to say a water tank, a water inlet pipe, a pump for moving the water, means of heating the water and a water inlet in the movable part. [0059] Although the invention has been described with reference to specific examples it will be appreciated by those skilled in the art that the invention may be embodied in many other forms.

Claims (46)

1. An extraction system comprising: a device for extraction of a capsule and a capsule that can be extracted in the device, the capsule having a guiding edge in the form of a collar, the device comprising a first fixed part, a second movable part that can be moved relative to the first fixed part, a housing configured to receive the capsule and defining, in a closed position of the second movable part against the first fixed part, an extraction position of the capsule on an axis in the housing, an insertion and positioning part comprising means for guiding the capsule arranged so as to insert the capsule by gravity and position the capsule in an intermediate position, the guiding edge of the capsule being taken charge of in the means for guiding, the means for guiding being insertion slides allowing the engagement of the collar; and a beverage delivery system, wherein the second moveable part is so constructed and arranged to displace the capsule from the intermediate position to the extraction position when the second movable part is moved into the closed position, wherein the means for guiding comprises stopping means configured to retain the capsule in the intermediate position, the collar bearing against the stopping means in the intermediate position, the second movable part takes charge of the capsule to displace it from the intermediate position to the extraction position on the axis of the capsule in the extraction position in the housing such that in its movement, the second movable part acts on the capsule to move it downwards, the collar of the capsule passing beneath the stopping means, and to push it along the axis of the second movable part in its extraction position.
2. The extraction system of claim 1, wherein the capsule is in the form of a truncated cone.
3. The extraction system of claim 1, wherein the capsule is selected from the group consisting of an open capsule of the filter paper capsule type, a rigid or semi-rigid capsule in cylindrical form, a truncated cone form, and combinations thereof. -16
4. The extraction system of claim 1, wherein the capsule contains a food product selected from the group consisting of ground roasted coffee, soluble coffee, soluble cocoa, milk, tea, dehydrated substances for bouillons, and combinations thereof.
5. The extraction system of claim 1, wherein the stopping means retain the capsule in a inclined fashion with respect to the axis of the capsule in the extraction position in the housing such that the capsule tilts slightly with respect to the axis of the capsule in the extraction position.
6. The extraction system of claim 5, wherein the stopping means retain the capsule in the inclined fashion at a small angle of less than 30 degrees with respect to the axis of the capsule in the extraction position.
7. The extraction system of claim 1, wherein the capsule is asymmetrical with respect to a plane passing through the collar in such a way as to be able to be tilted due to its centre of gravity being offset with respect to the collar.
8. The extraction system of claim 1, wherein the second moveable part is configured to force the capsule's collar to pass beneath the stopping means, in particular beneath bosses, during the passage of the capsule from its intermediate position to its extraction position.
9. The extraction system of claim 8, wherein the bosses retain the capsule by support of the capsule's collar on the bosses.
10. The extraction system of claim 1, wherein the means for guiding comprise introduction runners.
11. The extraction system of claim 1 further comprising an extraction plate towards which the second moveable part displaces the capsule into the extraction position.
12. The extraction system of claim 11, wherein the extraction plate comprises pyramids or spikes.
13. The extraction system of claim 11, wherein the extraction plate is perforated with holes to allow an extraction liquid to pass, and the capsule is made from filter paper. -17
14. The extraction system of claim 1, wherein the capsule has a side intended to tear under an increase in pressure inside the capsule.
15. A method for extracting a beverage from a capsule, the method comprising: inserting the capsule into an extraction device; immobilizing the capsule in an intermediate position, where the capsule is arranged on an axis offset relative to the axis of the capsule in an extraction position where the capsule is arranged on an axis of a moveable part of the device; moving the moveable part toward a fixed part of the device such that the moveable part forces the capsule out of the intermediate position and transfers it to the extraction position; and then feeding a liquid to the capsule and extracting a beverage from the capsule.
16. The method of claim 15 further comprising guiding the capsule with means for guiding during insertion of the capsule.
17. The method of claim 16, wherein the means for guiding are insertion slides.
18. The method of claim 17, wherein the stopping means are bosses.
19. The method of claim 15 further comprising operating a lever to move the moveable part toward the fixed part.
20. The method of claim 15 further comprising feeding a hot liquid into the capsule such that the capsule opens against an extraction plate due to an increase in pressure in the capsule.
21. The method of claim 15 further comprising raising a lever to move the moveable part away from the fixed part to release the capsule to allow the capsule to fall by gravitation.
22. The method of claim 15, wherein the fixed part comprises a substantially horizontal guide body to guide in translation the moveable part toward the fixed part.
23. The method of claim 15, wherein the capsule is immobilized in the intermediate position using stopping means and the capsule collar is forced beyond/below the stopping means. -18
24. A method for extracting a beverage from a capsule, the method comprising: providing a capsule comprising a guiding edge in the form of a collar and an extraction device comprising a first fixed part and a second moveable part that is moveable relative to the first part; inserting the guide edge of the capsule into means for guiding and guiding the capsule in its fall under the force of gravity to an intermediate position, the means for guiding comprising insertion slides allowing the engagement of the collar; the capsule being immobilized in the intermediate position using stopping means, in the intermediate position the capsule being arranged on an axis offset relative to the axis of the capsule in an extraction position, in the extraction position the capsule being arranged on an axis of the moveable part; moving the moveable part toward the fixed part of the device such that the moveable part forces the capsule out of the intermediate position to the extraction position during its travel towards the extraction position by causing the collar of the capsule to pass beneath the stopping means; and then feeding a liquid to the capsule and extracting a beverage from the capsule.
25. The method of claim 24 further comprising operating a lever to move the moveable part toward the fixed part.
26. The method of claim 24 further comprising feeding a hot liquid into the capsule such that the capsule opens against an extraction plate due to an increase in pressure in the capsule.
27. The method of claim 24 further comprising raising a lever to move the moveable part away from the fixed part to release the capsule to allow the capsule to fall by gravitation.
28. The method of claim 24, wherein the fixed part comprises a substantially horizontal guide body to guide in translation the moveable part toward the fixed part.
29. A method for extracting a beverage, the method comprising: providing a capsule that can be extracted in an extraction device, the capsule having a guiding edge in the form of a collar; providing an extraction device for extraction of the capsule, the device comprising a first fixed part, a second movable part that can be moved relative to the first fixed part, a housing configured to receive the capsule and defining, in a closed position of -19 the second movable part against the first fixed part, an extraction position of the capsule on an axis in the housing; inserting the capsule into the extraction device by an insertion and positioning part comprising means for guiding the capsule inserted under gravity and positioning the capsule in an intermediate position, the means for guiding taking charge of the guiding edge of the capsule, the means for guiding being insertion slides allowing the engagement of the collar; providing a liquid to the capsule; and liquid being extracted from the capsule in the extraction position, wherein the second moveable part is so constructed and arranged to displace the capsule from the intermediate position to the extraction position as the second movable part is moved into the closed position, wherein the means for guiding comprises stopping means configured to retain the capsule in the intermediate position, the collar bearing against the stopping means in the intermediate position, the second movable part taking charge of the capsule to displace it from the intermediate position to the extraction position such that in its movement, the second movable part acts on the capsule (i) to lower it such that the collar of the capsule passes beneath the stopping means, and (ii) to push it along the axis of the second movable part into its extraction position.
30. The method of claim 29, wherein the capsule is in the form of a truncated cone.
31. The method of claim 29, wherein the capsule is selected from the group consisting of an open capsule of the filter paper capsule type, a rigid or semi-rigid capsule in cylindrical form, a truncated cone form, and combinations thereof.
32. The method of claim 29, wherein the capsule contains a food product selected from the group consisting of ground roasted coffee, soluble coffee, soluble cocoa, milk, tea, dehydrated substances for bouillons, and combinations thereof.
33. The method of claim 29, wherein the stopping means retain the capsule in an inclined fashion with respect to the axis of the capsule in the extraction position such that the capsule tilts slightly with respect to the axis of the capsule in the extraction position.
34. The method of claim 33, wherein the stopping means retain the capsule in the inclined fashion at a small angle of less than 30 degrees with respect to the axis of the capsule in the extraction position. - 20
35. The method of claim 29, wherein the capsule is asymmetrical with respect to a plane passing through the collar in such a way as to be able to be tilted due to its centre of gravity being offset with respect to the collar.
36. The method of claim 29, wherein the second moveable part is configured to force the capsule's collar to pass beneath the stopping means, such as bosses, during the passage of the capsule from its intermediate position to its extraction position.
37. The method of claim 36, wherein bosses defined by the stopping means retain the capsule by supporting the capsule's collar.
38. The method of claim 29, wherein the means for guiding comprise insertion runners.
39. The method of claim 29 further comprising an extraction plate towards which the second moveable part displaces the capsule into the extraction position.
40. The method of claim 39, wherein the extraction plate comprises pyramids or spikes.
41. The method of claim 39, wherein the extraction plate is a perforate plate with holes to allow an extraction liquid to pass when the capsule is made from filter paper.
42. The method of claim 29, wherein the capsule has a side intended to tear under an increase in pressure inside the capsule.
43. An extraction system comprising: a device for extraction of a food product from a capsule to produce a beverage and a capsule containing a food product that can be extracted from the capsule in the device, the capsule having a peripheral edge forming a collar, the device comprising a first fixed part, a second movable part, moveable relative to the first fixed part along an axis of movement, a housing configured to receive the capsule and define, in a closed position of the second movable part against the first fixed part, an extraction position of the capsule along an axis of the housing, an insertion and positioning part comprising guidance means having insertion slides for slideably receiving the collar of the capsule inserted into the insertion slides and to guide the capsule by gravity to an intermediate position, the guidance means further including - 21 stopping means arranged retain the capsule in the intermediate position against gravity such that the collar of the capsule bearing on the stopping means, and a beverage delivery system, wherein the second moveable part is constructed and arranged such that upon movement of the second movable part into the closed position, the moveable part acts on the capsule to displace it from the intermediate position forcing the collar of the capsule to pass the stopping means, and to push the capsule along the axis of movement of the moveable part to the extraction position.
44. A method for extracting a beverage from a capsule containing a food product, the method comprising: providing a capsule containing a food product for extraction in an extraction device, the capsule having a guiding edge in the form of a collar; providing an extraction device for extracting the food product from the capsule, the device comprising: a first fixed part; a second movable part relative to the first fixed part along an axis of movement; and a housing configured to receive the capsule and defining, in a closed position of the second movable part against the first fixed part, an extraction position of the capsule on an axis in the housing; inserting the capsule into an insertion and positioning part of the extraction device, the insertion and positioning part comprising guidance means having insertion slides for slideably receiving the collar of the capsule inserted into the insertion slides and to guide the capsule by gravity to an intermediate position, the guidance means further including stopping means arranged retain the capsule in the intermediate position against gravity with the collar of the capsule bearing on the stopping means; moving the moveable part toward the fixed part of the device such that during its travel towards closed position, the moveable part engages the capsule retained by the stopping means in the intermediate position to force the capsule collar to pass the stopping means allowing the capsule to be pushed to the extraction position by the moveable part; and then feeding a liquid to the capsule and extracting a beverage from the capsule.
45. An extraction system comprising a device for extraction of a capsule and a capsule that can be extracted in the device, the capsule having a guiding edge in the form of a collar, the device said extraction system substantially as herein described with reference to any one - 22 of the embodiments of the invention illustrated in the accompanying drawings and/or examples.
46. A method for extracting a beverage from a capsule, the method substantially as herein described with reference to any one of the embodiments of the invention illustrated in the accompanying drawings and/or examples.
AU2012201622A 2003-07-10 2012-03-19 Cap extraction device Ceased AU2012201622B2 (en)

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AU2010201251A AU2010201251C1 (en) 2003-07-10 2010-03-29 Cap extraction device
AU2012201622A AU2012201622B2 (en) 2003-07-10 2012-03-19 Cap extraction device

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0512148A1 (en) * 1991-05-10 1992-11-11 Societe Des Produits Nestle S.A. Enclosed cartridge for making a beverage
EP0602203A1 (en) * 1992-07-06 1994-06-22 Nestle Sa Sealed flexible bag and method for making same.
US5776527A (en) * 1993-09-06 1998-07-07 Compagnie Mediterraneene Des Cafes S.A. Package of ground coffee of the prefilled tablet type and espresso coffee machine using such a package
EP1219217A1 (en) * 2000-12-29 2002-07-03 SGL Italia S.r.l. Coffee machine

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0512148A1 (en) * 1991-05-10 1992-11-11 Societe Des Produits Nestle S.A. Enclosed cartridge for making a beverage
EP0602203A1 (en) * 1992-07-06 1994-06-22 Nestle Sa Sealed flexible bag and method for making same.
US5776527A (en) * 1993-09-06 1998-07-07 Compagnie Mediterraneene Des Cafes S.A. Package of ground coffee of the prefilled tablet type and espresso coffee machine using such a package
EP1219217A1 (en) * 2000-12-29 2002-07-03 SGL Italia S.r.l. Coffee machine

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