WO2013190426A1 - Capsule de café à débit d'extraction optimal dotée d'un joint efficace pour diverses têtes de groupe - Google Patents

Capsule de café à débit d'extraction optimal dotée d'un joint efficace pour diverses têtes de groupe Download PDF

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Publication number
WO2013190426A1
WO2013190426A1 PCT/IB2013/054770 IB2013054770W WO2013190426A1 WO 2013190426 A1 WO2013190426 A1 WO 2013190426A1 IB 2013054770 W IB2013054770 W IB 2013054770W WO 2013190426 A1 WO2013190426 A1 WO 2013190426A1
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WO
WIPO (PCT)
Prior art keywords
plateau
flange
coffee capsule
side wall
group head
Prior art date
Application number
PCT/IB2013/054770
Other languages
English (en)
Inventor
Hanan Ben David
Original Assignee
Rialto Coffee Company Ltd.
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 claimed from US13/526,579 external-priority patent/US8986763B2/en
Application filed by Rialto Coffee Company Ltd. filed Critical Rialto Coffee Company Ltd.
Publication of WO2013190426A1 publication Critical patent/WO2013190426A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D85/00—Containers, packaging elements or packages, specially adapted for particular articles or materials
    • B65D85/70—Containers, packaging elements or packages, specially adapted for particular articles or materials for materials not otherwise provided for
    • B65D85/804—Disposable containers or packages with contents which are mixed, infused or dissolved in situ, i.e. without having been previously removed from the package
    • B65D85/8043—Packages adapted to allow liquid to pass through the contents
    • B65D85/8064—Sealing means for the interface with the processing machine

Definitions

  • the present invention relates to apparatuses and methods for capsules used in coffee-making making machines and, more particularly to such capsules for espresso designed for optimal extraction rate and usable in a diverse variety of group heads.
  • one step in the process is utilization of a capsule containing coffee granules.
  • the coffee granules in the capsule are subjected to a flow of heated water. As the water flows through the capsule, it is hoped that the water is evenly distributed throughout the capsule.
  • there is an optimal extraction rate for espresso is an art. It has been found to be in the ballpark of 0.20, which means about a 20% solubility rate of the solute, namely the granules, in the solvent, namely the water.
  • espresso there are two ways to make espresso.
  • the first is to use a professional barista who, like a bartender, artfully mixes the ingredients over a relatively long amount of time to create the ideal espresso using a professional espresso-making machine. This is an art.
  • the second way is to use an espresso -making machine that utilizes a coffee capsule.
  • the advantage of making the espresso with a coffee capsule is that it is easier, cleaner and more standardized.
  • the cost of the barista is also saved.
  • the drawbacks include the fact that this method does not achieve as high a quality of espresso, whether measured by taste, flow or other subjective criteria. This outcome may be because when using the coffee capsule to make the espresso, the hot water is the artistry and professional skill and experience of the barista is not available when using a coffee capsule.
  • a further technical problem with making espresso using a coffee capsule is ensuring that the coffee capsule that fits into the group head does not leak water and that the capsule does not get stuck in the group head. If the capsule does leak water, less coffee comes out of the brewing process and into the espresso. Furthermore, control is then lost over the exact percentage cf water that should be present as an ingredient of the espresso and the optimal extraction rate cannot be achieved.
  • a further problem of making espresso using a coffee capsule is that a large manufacturer of coffee-making machines for espresso may have multiple types of group heads for their espresso making machines.
  • Societe Des Produits Nestle S.A. has several different group heads each having different structural characteristics and/or dimensions.
  • Certain large manufacturers of coffee making machines deliberately make it difficult for coffee capsules not made by or for that manufacturer to be usable, for example so as to seal effectively, in the group heads of their machines.
  • these manufacturers may it exceedingly difficult to create a coffee capsule that works in more than one of their group heads, and certainly not in all of them. This makes it impossible for a coffee capsule usable in one type of group head for one espresso making machine to be also usable in the group head of the other machines. Having to create separate coffee capsules for separate group heads significantly increases the manufacturer costs of espresso making.
  • One aspect of the present invention is a coffee capsule for coupling in sealing relation with a group head of a coffee-making machine, comprising a cup-like body portion including a side wall; a flange whose proximal end meets a bottom end of the side wall, the flange comprising a first plateau raised relative to a top surface of the flange, a proximal lip more radially distal than the first plateau and protruding from the top surface of the flange to a point higher than the first plateau, a second plateau along the top surface of the flange more radially distal than the proximal lip, the first plateau operative to be compressed by the group head and form a fluid-tight sealing engagement with the group head when the coffee capsule mates with the group head.
  • a further aspect of the present invention is a coffee capsule for coupling in sealing relation with a group head of a coffee-making machine, comprising a cup-like body portion including a side wall; a flange whose proximal end meets a bottom end of the side wall, the flange comprising a plateau raised relative to a top surface of the flange, the plateau situated adjacent the bottom end of the side wall, the plateau operative to be compressed by, and form a fluid-tight seal against, the group head
  • a still further aspect of the present invention is a method of sealing a coffee capsule against group heads of more than one shape, the coffee capsule having a cup- like body portion and flange, the method comprising sealing the coffee capsule against a first group head by configuring a proximal end of the flange with a flexible first plateau, the first plateau raised relative to a top surface of the flange, so that the first group head presses against and forms a sealing engagement with the first plateau; separating the coffee capsule from the first group head; and sealing the coffee capsule against a second group head by configuring the flange with a second plateau more distal from a side wall of the coffee capsule than the first plateau, so that the second group head presses against and seals against the second plateau.
  • a yet still further aspect of the present invention is a coffee capsule for coupling in sealing relation with a group head of a coffee-making machine, comprising a cup-like body portion including a side wall; a flange whose proximal end meets a bottom end of the side wall, the flange comprising a first plateau raised relative to a top surface of the flange, the plateau situated adjacent the bottom end of the side wall.
  • a coffee capsule for coupling in sealing relation with a group head of a coffee-making machine, comprising a cup-like body portion including a side wall; a flange whose proximal end meets a bottom end of the side wall, the flange comprising an open proximal chamber defined by at least two walls, the at least two walls include the bottom end of the side wall of the body portion and a bottom wall of the flange raised relative to a top surface of the flange, the bottom wall situated adjacent the bottom end of the side wall, the bottom wall operative to be compressed by, and form a fluid-tight seal against, the group head.
  • FIG. 1 is a vertical sectional view of a coffee capsule taken along line A— A of FIG. 6, in accordance with one embodiment of the present invention
  • FIG. 2 is an enlarged sectional view of the flange and a portion of the side wall of the coffee capsule of FIG. I , in accordance with one embodiment of the present invention
  • FIG. 2a is an enlarged sectional view of the flange and a portion of the side wall of the coffee capsule of FIG. 1 showing a fragmentary portion of a group head of an espresso-making machine sealing against the first plateau of the flange, in accordance with one embodiment of the present invention
  • FIG. 3 is a perspective view of the coffee capsule of FIG. 1 from the top, in accordance with one embodiment of the present invention
  • FIG. 4 is a perspective view of the coffee capsule of FIG. 1 from the bottom, in accordance with one embodiment of the present invention.
  • FIG. 5 is a flow chart showing a method of the present invention.
  • FIG. 6 shows a side view of the capsule of FIG. 1, in accordance with one embodiment of the present invention .
  • the present invention generally provides a coffee capsule for placement in a group head of a coffee-making machine, and in particular in a machine for making espresso at an optimal extraction rate.
  • the coffee capsule may have a cup-like body portion including a side wall, and a flange whose proximal end meets a bottom end of the side wall.
  • the flange may comprise a first plateau raised relative to a top surface of the flange, a proximal lip more radially distal than the first plateau and protruding from the top surface of the flange to a point higher than the first plateau, and may include a second plateau along the top surface of the flange more radially distal than the proximal lip, the first plateau operative to receive pressure from and form a fluid- tight seal against the group head, preferably together with the side wall.
  • the second plateau may seal against a second sized-shaped group head.
  • the side wall may have a straight top section narrower than a main tapered section to avoid fins or other protrusions of the group head, blocking coupling of the group head wioth the coffee capsule.
  • the capsule may have a curved top meeting a top end of the side wall, the curved top may have a circumferential strip of reduced thickness for convenient puncturing by blades of the water head to define water inlets.
  • the coffee capsule may be made of polypropylene copolymer comprising TR50.
  • the coffee capsule of the present invention may fit and seal effectively onto multiple types of group heads.
  • the coffee capsule of the present invention may fit and seal effectively, without leakage of the pressurized water, onto the several types of group heads of espresso preparation machines of Societe Des Produits Nestle S.A.
  • the coffee capsule of the present invention may achieve the effective seal referred to without the use of a separate gasket piece.
  • the single integral unitary piece of material of the capsule itself may achieve this seal by its shape and by the material it is made from.
  • the coffee capsule of the present invention may be made of a polyproylene coplymer, for example one that comprises TR50 (and in some preferred embodiments about 80% TR-50 and about 20% R-50).
  • TR50 and in some preferred embodiments about 80% TR-50 and about 20% R-50.
  • the present invention masy thereby achieve the advantages of the professionally made espresso combined with the advantages of the method using capsules, without the disadvatanges of each
  • the curved top of the coffee capsule of the present invention may have a circumferential strip of reduced thickness for optimal puncturing by the blades of the group head.
  • the thickness may be about 0.3 to about 0.45 mm instead of the thickness of about 0.5 to about 0.8 mm at the lower portion of the curved top of the capsule.
  • the flange of the coffee capsule of the present invention may utilize a plateau, for example a plateau adjacent the side wall of the capsule, that may be compressed by the group head and thereby form a fluid-tight seal against the group head, for example with the help of the side wall of the capsule.
  • the flange may have a proximal lip radially distal to the first plateau (sometimes called the plateau) and higher than the first plateau.
  • the flange of the present capsule may include a second plateau configured to seal against a second type (i.e. size or shape) of group head of the same manufacturer that makes the first group head, the second plateau being radially distal to the proximal lip and to the first plateau.
  • the thickness of the flange of the coffee capsule of the present invention may be for example about 0.4 mm to about 0.7 mm and be suited for allowing the capsule to seal against multiple group heads of a manufacturer of espresso making machines.
  • the side wall may have a straight narrow top section that may be configured so that the capsule is not blocked or impeded by a fin or other protrusion on certain types of group heads, for example a protrusion that may protrude horizontally.
  • the capsule of the present invention may also not get stuck in the group head.
  • the capsule of the present invention may have a side wall having a main tapered section that may have a bulge positioned between more tapered and less tapered segments of the main tapered section, to allow the first group head to slide down the side wall of the capsule until the plateau, as the group head mates with the coffee capsule.
  • the coffee capsule of the present invention may be soft enough for an effective seal and hard enough for convenient and effective puncturing. This may be accomplished by utilizing TR-50 (and in some cases using about 80% TR-50 and about 20% R-50).
  • FIG. 1 is a vertical sectional view of the coffee capsule of the present invention, in accordance with one embodiment.
  • FIG. 1 depicts a coffee capsule 10 for placement in a group head of a coffee-making machine, for example for espresso.
  • the coffee capsule 10 may achieve an optimal extraction rate.
  • coffee capsule 10 may comprise a cup-like body portion 15 (FIG. 3) and a flange 40.
  • the cup-like body portion 15 may define a hollow space.
  • Body portion 15 may include a side wall 20, that may be a substantially circular side wall 20, whose top end 22 may meet a curved top 30.
  • a bottom end 24 of side wall 20 may meet flange 40.
  • the curved top 30 may have a thicker lower portion 32, a thinner upper portion 34 comprising a cirumferential strip, and a top portion 36.
  • top portion 36 of curved top 30 may be generally flat, and may meet upper portion 34 at a comer 35, the overall appearance of curved top 30 is nonetheless generally curved.
  • Top portion 36 may have a dimple 37 or depression at its center.
  • the curved top 30, and in particular the upper portion 34 may be accessible, while positioned in the group head, for puncture to define water inlets.
  • flange 40 may have a proximal end 42 that may mate with a bottom end 24 of the side wall 20.
  • Flange 40 may comprise a first plateau 44 (sometimes called “plateau", particularly when the second plateau is not being referred to) raised relative to a top surface 43 of the flange.
  • First plateau 44 may be adjacent a bottom end 24 of the side wall 20 of body portion 15.
  • flange 40 also has a proximal lip 46 more radially distal (from side wall 20) than the first plateau 44.
  • Proximal lip 46 may protrude from the top surface 43 of flange 40 to a point higher than the first plateau 44.
  • proximal lip 46 is in the shape of a generally convex elevation.
  • flange 40 may also comprise a second plateau 43 which is the top surface 43 of the flange 40 up to the distal lip 41.
  • the second plateau 43 may be more radially distal than proximal lip 46 (in embodiments where proximal lip 46 appears) and more radially distal than first plateau 44.
  • second plateau 43 may be wider than first plateau 44.
  • first plateau 44 may be less than half as wide as second plateau 43.
  • An overall thickness of the flange 40 which is the perpendicular thickness of the flange at second plateau 43, may be between about 0.4 mm and about 0.6 mm - in some preferred embodiments this thickness is about 0.5 mm.
  • First plateau 44 may have a perpendicular height above the second plateau 43 of between about 0.2 mm and about 0.4 mm. In certain preferred embodiments, the first plateau has a perpendicular height above the second plateau of between about 0.2 mm and about 0.3 mm, and ideally abut 0.25 mm.
  • An overall thickness of the flange 40 at the first plateau 44 i.e. as measured from the first plateau 44 to the underside of the flange 40 directly (perpendicularly) below the first plateau 44 may be between about 0.6 mm and about 1.0 mm. In some preferred embodiments, the overall thickness is between about 0.7 and about 0.8 mm.
  • the first plateau 44 may be operative to deform and be compressed by the group head 99 and form a fluid-tight sealing engagement with the group head 99 (see FIG. 2a) that surrounds capsule 10 in the coffee-making machine when the group head and the coffee capsule are combined, i.e. mate, during operation of the coffee- making machine.
  • the group head 99 (FIG. 2a) may form a fluid-tight seal against first plateau 44.
  • the fluid-tight seal or selaing engagement is typically a seal against pressurized water. The seal created by the fact that the group head 99 (FIG.
  • FIG. 2a may be operative to form the fluid-tight sealing engagement with the first plateau 44 may be further supported by side wall 20, and in particular may be further supported by a bottom end 24 of side wall 20, of cup-like body portion 15.
  • FIG. 2a is intended to show the sealing engagement functionally and is not intended to show the sealing engagement precisely. For example, the spaces appearing in FIG. 2a in the area of the seal should be ignored.
  • first plateau 44 does not have any protruberances.
  • first plateau 44 has one or more protruberances. Functionally, first plateau 44 does not require having any protruberances. However, if there are one or more protruberances, first plateau 44 would still be referred to as a plateau notwithstanding the fact that it would not be completely flat, since, for example, first plateau 44 may have one or more protruberances but still be comparatively level like a plateau.
  • the group head 99 may be said to form the sealing engagement with first plateau 44 surrounded by a chamber defined by first plateau 44, side wall 20 and proximal lip 46.
  • first plateau 44 it is the first plateau 44 that may deform and compress to effectuate the sealing engagement.
  • the proximal lip 46 need not deform for the seal to be effective. Furthermore, in preferred embodiments, the proximal lip 46 does not in fact deform.
  • first plateau 44 may be calculated with that in mind such that first plateau 44 may meet the end 99a of group head 99 to seal, as shown functionally in FIG. 2a.
  • the first plateau may be between 27.4 and 28.0 mm (and in some preferred embodiments may be between 27.6 mm and 27.7 mm) in perpendicular distance from a highest point of curved top 30 of body portion 15, as measured along an imaginary vertical axis of capsule 10 running through a center of capsule 10, which imaginary vertical axis is colinear with the cut line A— A shown in FIG. 6.
  • flange 40 may be a circular flange 40 projecting outward (generally perpendicularly from a top portion of the side wall 20) from bottom end 24 of side wall 20. Flange 40 may be configured so that its underside may mate with an outer portion of a lid (not shown). In some embodiments, flange 40 also has a distal lip 41. Distal lip 41 does not play a role in sealing but rather may be present to strengthen the flange 40. The dimensions of lip 41 are not critical. As can be seen from FIG. 2a, lip 41 may have a width that exceeds its height above surface 43. As seen in FIG. 2, flange 40 may also have on its underside a welding lip 49 that may be compressed by the lid (not shown) during attachment of the lid to the capsule. In some preferred embodiments, the welding lip 41 is about 1 mm wide and about 0.25 in height.
  • the thickness of flange 40 may have a thickness of between about 0.4 mm and 0.7 mm. In some preferred embodiments, the thickness of flange 40 at the second plateau 43 may be between about 0.4 mm and about 0.6 mm, and in some preferred embodiment, about 0.5 mm.
  • Proximal lip 46 may have a perpendicular height above the upper surface 43 of flange 40 (i.e. above second plateau 43) equal to between about 0.4 and about 0.8 mm. In some preferred embodiments, proximal lip 46 is about 0.6 mm above second plateau 43.
  • the height of proximal Up 46 above first plateau 44 may not be critical and may be for example roughly equal to the width of proximal lip 46 (which is defined to be its width at its widest point) or in some preferred embodiments may be between 75 and 100 per cent of the width of proximal lip 46.
  • proximal lip 46 above second plateau 43 may not be critical and this height may for example be between 1.2 and 1.5 times (or between 1.1 and 1.5 in other embodiments) the width of proximal lip 46.
  • Coffee capsule 10 may assist in creating the effective seal between the group head (whether this is first group head 99 or the second group head (not shown)) and the coffee capsule 10.
  • Coffee capsule (without the lid) 10 may be formed of a plastic, for example a polypropylene copolymer plastic.
  • the main copolymer may be a poiyproylene material called TR50, which is somewhat flexible.
  • Capsule 10 may comprise poiyproylene copylmer TR-50.
  • the present inventor has unexpectedly found that when TR-50 comprises about 80% of the copolymer and the other about 20% may be a harder polypropylene copolymer called R-50 in the poiyproylene manufacturing industry, the coffee capsule 10 may be soft enough to allow the seal of the coffee capsule 10 with the group head to be very effective and enhanced yet hard enough to allow easy and effective puncturing of the curved top of the coffee capsule by the blades (not shown) of the group head 99.
  • a circumferential strip 39 of the curved top 30 may have a reduced thickness in an amount ranging from about 0.3 mm to about 0.45 mm. This thickness may be reduced in comparison to the thickness of the lower portion 32 of the curved top 30.
  • circumferential strip 39 may extend from a corner 35 of the curved top 30 toward side wall 30. Strip 39 may be at an angle to an axis perpendicular to flange 40. in some preferred embodiments, circumferential strip 39 may extend for about 6.7 mm, or a range of about 6 mm to about 8 mm along curved top 30 and in particular along the upper portion 34 of curved top 30.
  • the side wall may have a straight top section 28 narrower than a main tapered section 26.
  • Straight narrowed top section 28 may be between 4 mm and about 5 mm long along the side wall 20.
  • One purpose of narrowed straight top section 28 may be to avoid fins or other protrusions of the group head 99 impeding the coupling of the group head with the coffee capsule 10.
  • Top section 28 may be straight in that it may be perpendicular or substantially perpendicular to and extending perpendicularly to flange 40. As shown in FIG. 1 , along the main tapered section 26 the side wall 20 gradually may widen from where the main tapered section 26 meets the top section 28 until where the side wall 20 meets the plateau 44. As can be seen from FIG.
  • the main tapered section 26 has a more tapered segment 26a and a less tapered segment 26b with a bulge area 26c between the segments 26a, 26b.
  • This bulge area or bulge 26c may facilitate a sliding of the group head 99 down side wall 20 up until the first plateau 44 during a coupling of the group head 99 with capsule 10 and selaing engagement between group head 99 and first plateau 44.
  • the perpendicular height of coffee capsule 10 from the underside of the flange 40 (without reference to any lid (not shown)) to a top surface 36 of the curved top 30 may be about 28 mm to about 29 mm.
  • the coffee capsule 10 of the present invention may be structurally suited for multiple types of group heads of a manufacturer of espresso -making machines, this feature and advantage is not a limitation unless expressly stated as a feature of a particular claim.
  • the present invention may also be described as a coffee capsule for coupling in sealing relation with a group head of a coffee-making machine, comprising a cup-like body portion 15 including a side wall 20, a flange 40 whose proximal end 42 meets a bottom end 24 of the side wall 20, the flange 40 comprising an open proximal chamber ("OPC" in FIG.
  • the at least two walls include the bottom end 24 of side wall 20 of body portion 15 and a bottom wall 44 of the flange 40 raised relative to a top surface 43 of flange 40, the bottom wall 44 situated adjacent the bottom end 24 of the side wall 20, the bottom wall 44 operative to be compressed by, and form a fluid-tight seal against, the group head 99.
  • the open proximal chamber is also defined by a third wall 46a (see FIG. 2a) of proximal lip 46.
  • Bottom wall 44 and side wall 20 of the body portion may meet at an angle of between about 70 degrees and 1 10 degrees to make the at least two walls of the open proximal chamber substantially perpendicular.
  • FIG. 6 shows a side view of the coffee capsule of FIG. 1.
  • the coffee capsule 10 may be symmetrical such that front and rear views of the coffee capsule are identical and in some preferred embodiments the front and rear views may also be identical to the side view shown in FIG. 6.
  • the present invention may also be characterized as a method 100 of sealing a coffee capsule against group heads of more than one type where the coffee capsule has a cup-like body portion and a flange.
  • type refers to a different shape or size of a group head.
  • a different type of group head has a different structure, shape or dimensions for coupling to a coffee capsule and therefore a coffee capsule that couples with a sealing engagement with one type of group head would fail to couple with a sealing engagement with a second type of group head.
  • the coffee capsule of the present invention may be capable of coupling with an effective sealing engagement with multiple types of group heads.
  • the coffee capsule of the present invention may couple with and form a sealing engagement with two different types, or in other preferred embodiments, with three different types, or in still other preferred embodiments, with four different types, or in still other preferred embodiments with five different types, of group heads of one particular manufacturer of espresso-making machines.
  • the method may allow a coffee-making machine to brew espresso having an optimal extraction rate.
  • Method 100 may include a step 110 of sealing the coffee capsule against a first group head by configuring a proximal end of the flange 40 with a flexible first plateau 44, the plateau 44 raised relative to a top surface 43 of the flange 40, so that the first group head presses against and forms a sealing engagement with the first plateau 44.
  • a further step 120 may involve separating the coffee capsule from first group head 99 (FIG. 2a).
  • Step 130 may comprise sealing the coffee capsule against a second group head (not shown) by configuring the flange 40 to have a second plateau 43 so that the second group head presses against the second plateau 43.
  • the second plateau 43 may be distal from the side wall than the first plateau 44.
  • the flange in some preferred embodiments, may be configured so that the second plateau 43 is separated from the first plateau 44 by a proximal lip 46.
  • second group head used in this patent application means a second type of group head such that the second type is of a different shape and/or size than the first group head such that a coffee capsule that can couple with sealing engagement with one type of group head would not be able to do so with a second type of group head.
  • third group head which means a third type of group head different fromn the first and second types. The same applies to the fourth, fifth group heads.
  • method 100 may be expanded to also recite a step of separating the second group head from the coffee capsule and then coupling the coffee capsule to a third type of group head.
  • Various permutations may be included. It may be, for example that the first, third and fifth types of group heads are configured to have the sealing engagement of the group head at the first plateau of the coffee capsule whereas the second and fourth types of group heads may seal at the second plateau. Any other permutation is contemplated.
  • the method 100 also comprises a step of configuring an upper part of a side wall of the body portion to have a straight narrowed top section extending perpendicularly, i.e. 90 degrees (or in some embodiments substantially perpendicularly + or - 5% deviation from 90, or another tolerance such as 1%, 8%, 10%) toward the flange 40 to avoid fins projecting from the first group head from impeding or blocking a coupling of the coffee capsule with the first group head.
  • the method 100 may also have a step of configuring the side wall with a tapered main section in which the side wall gradually widens until the side wall meets the plateau.
  • the method 100 may also comprise providing the side wall with a main tapered section that has a bulge 26c between a more tapered 26a and a less tapered segment 26b of the main tapered section 26 to facilitate a sliding of the first group head down the side wall 20 up until the first plateau during a coupling of the group head with the coffee capsule.
  • group head is used throughout this patent application, it should be understood that the capsule 10 may be usable with beverage making machines other than espresso-making machines and that in that case, the "group head” may more broadly be referred to as an enclosing member, and the different group heads may then be referred to as the first enclosing member, second enclosing member, etc. Similarly, in that case, the term “coffee capsule” may more broadly be referred to as "capsule" 10.

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  • Mechanical Engineering (AREA)
  • Apparatus For Making Beverages (AREA)

Abstract

Capsule de café destinée à s'accoupler avec de multiples têtes de groupe possédant une collerette dont l'extrémité proximale rencontre une extrémité inférieure de la paroi latérale. Un plateau surélevé adjacent à une extrémité inférieure de la paroi latérale peut recevoir une pression provenant de la tête de groupe et former un joint étanche contre celle-ci avec la paroi latérale. Une lèvre proximale plus radialement distale que le premier plateau et plus élevée que le premier plateau peut faire saillie depuis la surface supérieure de la collerette. La paroi latérale peut comporter une section supérieure rétrécie afin d'éviter des saillies depuis la tête de groupe. Un dessus incurvé peut comporter une bande circonférentielle d'épaisseur réduite pour formation d'arrivée d'eau. Un second plateau le long de la surface supérieure de la collerette plus radialement distal que la lèvre proximale peut former un joint étanche contre une tête de groupe différente. La capsule peut se composer d'un copolymère de polypropylène TR-50 et de préférence d'environ 80 % de TR-50 afin de faciliter l'étanchéité.
PCT/IB2013/054770 2012-06-19 2013-06-11 Capsule de café à débit d'extraction optimal dotée d'un joint efficace pour diverses têtes de groupe WO2013190426A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US13/526,579 2012-06-19
US13/526,579 US8986763B2 (en) 2012-02-27 2012-06-19 Optimal extraction rate coffee capsule with effective seal for diverse group heads

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WO2013190426A1 true WO2013190426A1 (fr) 2013-12-27

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RU2727625C2 (ru) * 2016-05-13 2020-07-22 Конинклейке Дауве Егбертс Б.В. Капсула и система для приготовления напитка из такой капсулы
US10835074B2 (en) 2015-05-15 2020-11-17 Koninklijke Douwe Egberts B.V. Capsule, a system for preparing a potable beverage from such a capsule and use of such a capsule in a beverage preparation device
US10940995B2 (en) 2015-05-15 2021-03-09 Koninklijke Douwe Egberts B.V. Capsule, a system for preparing a potable beverage from such a capsule and use of such a capsule in a beverage preparation device
US11198557B2 (en) 2016-10-07 2021-12-14 Koninklijke Douwe Egberts B.V. Capsule, a system for preparing a potable beverage
US11198556B2 (en) 2015-05-15 2021-12-14 Koninklijke Douwe Egberts B.V. Capsule, a system for preparing a potable beverage from such a capsule and use of such a capsule in a beverage preparation device
US11311137B2 (en) 2014-01-03 2022-04-26 Koninklijke Douwe Egberts B.V. Exchangeable supply pack for a beverage dispensing machine, doser, pump assembly and method of manufacturing
US11352199B2 (en) 2015-05-15 2022-06-07 Koninklijke Douwe Egberts B.V. Capsule, a system for preparing a potable beverage from such a capsule and use of such a capsule in a beverage preparation device
US11540659B2 (en) 2017-07-14 2023-01-03 Koninklijke Douwe Egberts B.V. Assembly of a capsule and a brew chamber
US11673738B2 (en) 2016-05-13 2023-06-13 Koninklijke Douwe Egberts B.V. Capsule, a system for preparing a potable beverage from such a capsule and use of such a capsule in a beverage preparation device
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Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11311137B2 (en) 2014-01-03 2022-04-26 Koninklijke Douwe Egberts B.V. Exchangeable supply pack for a beverage dispensing machine, doser, pump assembly and method of manufacturing
US11760561B2 (en) 2015-05-15 2023-09-19 Koninklijke Douwe Egberts B.V. Capsule, a system for preparing a potable beverage from such a capsule and use of such a capsule in a beverage preparation device
US10835074B2 (en) 2015-05-15 2020-11-17 Koninklijke Douwe Egberts B.V. Capsule, a system for preparing a potable beverage from such a capsule and use of such a capsule in a beverage preparation device
US10940995B2 (en) 2015-05-15 2021-03-09 Koninklijke Douwe Egberts B.V. Capsule, a system for preparing a potable beverage from such a capsule and use of such a capsule in a beverage preparation device
US11851268B2 (en) 2015-05-15 2023-12-26 Koninklijke Douwe Egberts B.V. Capsule, a system for preparing a potable beverage from such a capsule and use of such a capsule in a beverage preparation device
US11198556B2 (en) 2015-05-15 2021-12-14 Koninklijke Douwe Egberts B.V. Capsule, a system for preparing a potable beverage from such a capsule and use of such a capsule in a beverage preparation device
US11352199B2 (en) 2015-05-15 2022-06-07 Koninklijke Douwe Egberts B.V. Capsule, a system for preparing a potable beverage from such a capsule and use of such a capsule in a beverage preparation device
US11772883B2 (en) 2015-05-15 2023-10-03 Koninklijke Douwe Egberts B.V. Capsule, a system for preparing a potable beverage from such a capsule and use of such a capsule in a beverage preparation device
US11827446B2 (en) 2015-10-27 2023-11-28 Koninklijke Douwe Egberts B.V. Capsule, system and method for preparing a beverage
US11679929B2 (en) 2016-05-13 2023-06-20 Koninklijke Douwe Egberts B.V. Capsule and a system for preparing a potable beverage from such a capsule
US11673738B2 (en) 2016-05-13 2023-06-13 Koninklijke Douwe Egberts B.V. Capsule, a system for preparing a potable beverage from such a capsule and use of such a capsule in a beverage preparation device
RU2727625C2 (ru) * 2016-05-13 2020-07-22 Конинклейке Дауве Егбертс Б.В. Капсула и система для приготовления напитка из такой капсулы
US11198557B2 (en) 2016-10-07 2021-12-14 Koninklijke Douwe Egberts B.V. Capsule, a system for preparing a potable beverage
US11866249B2 (en) 2016-10-07 2024-01-09 Koninklijke Douwe Egberts B.V. System for preparing a potable beverage
US11540659B2 (en) 2017-07-14 2023-01-03 Koninklijke Douwe Egberts B.V. Assembly of a capsule and a brew chamber
US11844453B2 (en) 2017-07-14 2023-12-19 Koninklijke Douwe Egberts N.V. Capsule for the preparation of a beverage

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