WO2010013274A1 - Groupe d'infusion de machine à café expresso - Google Patents

Groupe d'infusion de machine à café expresso Download PDF

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Publication number
WO2010013274A1
WO2010013274A1 PCT/IT2008/000531 IT2008000531W WO2010013274A1 WO 2010013274 A1 WO2010013274 A1 WO 2010013274A1 IT 2008000531 W IT2008000531 W IT 2008000531W WO 2010013274 A1 WO2010013274 A1 WO 2010013274A1
Authority
WO
WIPO (PCT)
Prior art keywords
infusion
chamber
group according
piston
plates
Prior art date
Application number
PCT/IT2008/000531
Other languages
English (en)
Inventor
Giampiero Rossi
Original Assignee
Rossi Corporation S.R.L.
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
Application filed by Rossi Corporation S.R.L. filed Critical Rossi Corporation S.R.L.
Priority to CN200880129661.7A priority Critical patent/CN102118991B/zh
Priority to PCT/IT2008/000531 priority patent/WO2010013274A1/fr
Publication of WO2010013274A1 publication Critical patent/WO2010013274A1/fr

Links

Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
    • A47J31/00—Apparatus for making beverages
    • A47J31/24—Coffee-making apparatus in which hot water is passed through the filter under pressure, i.e. in which the coffee grounds are extracted under pressure
    • A47J31/34—Coffee-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
    • A47J31/36—Coffee-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
    • A47J31/3604—Coffee-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
    • A47J31/3609—Loose coffee being employed
    • A47J31/3614—Means to perform transfer from a loading position to an infusing position

Definitions

  • the present invention relates to an espresso coffee machine infusion group.
  • Espresso coffee machines as known, have an infusion group composed of an infusion chamber and a closure piston that are reciprocally movable between an open position of the infusion chamber at which the coffee powder load is loaded and a closed position of the infusion chamber at which the infusion is carried out.
  • the traditional infusion groups can have rather complex movement kinematics and also result rather bulky, especially with regard to their height extension, so to be able to position the external dispenser of the infused drink above the glass in a convenient position for the user.
  • Such kinematic mechanism for moving the traditional infusion groups can sometimes be not very precise or reliable, and give rise to a progressive wear of the parts, which during movement slide in contact with each other, and thus require a continuous maintenance.
  • the technical task proposed by the present invention is therefore that of making an espresso coffee machine infusion group that allows eliminating the technical drawbacks lamented by the prior art.
  • one object of the invention is that of making an espresso coffee machine infusion group that, while being extremely compact, especially with regard to its height extension, allows positioning the external dispenser of the infused drink in a convenient position for the user.
  • Another object of the invention is that of making an espresso coffee machine infusion group which is structurally simple, precise and reliable.
  • Not the least object of the invention is that of making an espresso coffee machine infusion group that does not have appreciable wear phenomena of its moving parts and consequently does not require frequent extraordinary maintenance operations.
  • Figure 1 shows a side elevation view of an espresso coffee machine infusion group in which the infusion chamber is in open position
  • Figure 2 is a side elevation view of the infusion group of figure 1 in which the support plate was removed for convenience and the infusion chamber is illustrated axially sectioned;
  • Figure 3 shows the infusion group of figure 2 in an intermediate step of the initial rotation of the infusion chamber in its closing travel
  • Figure 4 shows the infusion group of figure 3 in the final step of the initial rotation of the initial rotation of the infusion chamber in its closing travel
  • Figure 5 shows the infusion group of figure 2 in an intermediate step of the final translation of the infusion chamber in its closing travel
  • Figure 6 shows the infusion group of figure 2 in the final step of the final translation of the infusion chamber in its closing travel
  • Figure 7 shows a part of an espresso coffee machine infusion group in accordance with a preferred mode for achieving the invention, axially sectioned along the vertical median plane between the vertical support plates and in which the infusion chamber is in closed position;
  • Figure 8 shows the group of figure 6 in the discharge position of the spent capsule
  • Figure 9 shows the infusion group of figure 6 in the position for loading a new capsule
  • FIGS 10a - 1Od represent an additional system for locking the closure of the infusion chamber in the subsequent operating positions, in accordance with the present invention.
  • an espresso coffee machine infusion group is shown, indicated with the reference number 1 in its entirety.
  • the espresso coffee machine can be of the semi-automatic type in which the coffee powder load, a single-use cartridge or pod containing the coffee powder quantity
  • the infusion group 1 comprises an infusion chamber 3, rotatably supported, preferably in eccentric position, by a driving pin 5 which is slidable along a fixed guide so to carry out a rototranslation with respect to a closure piston 4 between a closed position and an open position for the loading of the coffee powder load.
  • the infusion chamber 3 is preferably made of plastic or another material with low friction coefficient.
  • the chamber 3 supports and guides an infusion piston 26 at its interior which is slidable between a retracted position and an extended position for expelling the spent coffee powder load.
  • a suitable stop element 39 is capable of stopping the infusion piston 26 during the travel of the chamber 3 towards the open position so as to bring it into the extended position.
  • the infusion piston 26 is provided with a filter 27 and has its stem 28 coaxially slidable with the infusion chamber 3 through a hole 29 made passing through the base
  • the infusion group 1 also has first means 7 for intercepting the rotation of c the infusion chamber 3 at its first alignment angle with the closure piston 4, and second means 8 for intercepting the translation of the infusion chamber 3 for its rotation towards the load position (the first 7 and the second 8 interception means are illustrated only with reference to the embodiment of figures 1-6, but are valid for both the preferred embodiments of the invention).
  • centring means are also present adapted to maintain the infusion chamber 3 and the closure piston 4 coaxial during the terminal part of the closing path of the infusion chamber 3.
  • the infusion group 1 has two vertical, parallel and spaced support plates 9 between which the chamber 3 and the closure piston 4 are positioned.
  • the fixed guide is extended along the plates 9 and in particular comprises two slide slots 6 present in symmetric position on the plates 9.
  • the driving pin 5 is transversely arranged through the slots 6.
  • the first intercepting means 7 comprise a first pair of pins 10 present in symmetric position on the plates 9, while the second interception means 8 comprise a second pair of pins 11, also present in symmetric position on the plates 9.
  • the chamber 3 has a flat external surface 12 of its lateral wall 13, intercepted by the first pair of pins 10 when the driving pin 5 slides along a first section 14 of the fixed guide close to the closure piston 4, and a flat external surface 15 of its base 16, intercepted by the second pair of pins 11 when the driving pin 5 slides along a second linear section 17 of the fixed guide.
  • the chamber 3 is a hollow cylindrical block with open top 18, in which a faceting defines the flat surface 12 intercepted by the first pair of pins 10.
  • the second linear section 17 of the fixed guide in the first preferred embodiment of the invention has different slope with respect to the first linear section 14.
  • the driving pin is actuated by a movement mechanism shown only with reference to the embodiment of figures 1-6, but is valid for both preferred embodiments of the invention.
  • the movement mechanism comprises a connecting rod element 19 in turn hinged to a crank element 20 actuated by a motor 21 or, alternatively, manually.
  • the connecting rod element 19 is hinged to the end of the driving pin 5 outside the plates 9.
  • the connecting rod element 19 comprises two connecting rods hinged to the ends of the driving pin 5, and the crank element 20 also comprises two cranks present in symmetric position on the plates 9, to which they are pivoted, rotating in
  • crank element 20 peripherally has a cam profile 23 adapted to activate switches
  • the infusion chamber 1 has first elastic return means of the chamber 3 towards the open position, bound at one end thereof to the chamber 3 and at their other end to the plates 9.
  • 1-6 but valid for both preferred embodiments of the invention, for example comprises a pair of first helical springs.
  • Second elastic return means 30 (shown only with reference to the embodiment of figures 1-6, but valid for both preferred embodiments of the invention) present between the external surface of the base 16 of the chamber 3 and a flange 31 of the stem 28, are adapted to bring the infusion piston 26 back towards the retracted position.
  • Such second elastic means 30 can comprise, for example, a second helical spring.
  • the base 16 of the infusion chamber 3 has an access path 32 for the infusion water, while the lateral surface inside the chamber 3 has, near the base 16 of the chamber 3, a seal ring 33 adapted to make a seal with the infusion piston 26 when the latter is in retracted position towards the base of the chamber 3, in order to prevent that during the infusion there are undesired leaks of the infusion water through the interstice between the perimeter edge of the infusion piston 26 and the lateral surface inside the chamber 3.
  • the infusion group 1 has a scraper 34 adapted to remove the spent coffee powder from the chamber 3.
  • the scraper 34 is in particular a C-shaped profile having the two support stems 35 hinged, by means of pin 36, to the two plates 9 and a scraping element 37 which extends between the two support stems and remains simply supported due to its own weight on the external surface of the chamber 3.
  • the scraper 34 is in particular abutted on the external cylindrical surface portion of the chamber 3, diametrically opposed to the flat surface 12 which in turn is extended in a plane orthogonal to the support plates 9.
  • the chamber 3 has a smoothed external connection surface 38 between its external lateral surface and its apical surface, adapted to facilitate the passage of the scraper
  • the stop element 39 is a parallelepiped pawl hinged in eccentric position, by means of pin 40, to the two plates 9: in particular, the pawl has an axis thereof parallel to the hinge pin 40.
  • Third means 41 for intercepting the pawl 39 are present, in particular comprising a third pair of pins 42 present in symmetric position on the plates 9, adapted to block the rotation of the pawl 39 at its angular position in which it operates the stopping of the infusion piston 26.
  • third elastic means 43 for bringing the pawl 39 back towards its angular position in which it operates the stopping of the piston 26.
  • Such third elastic return means 43 can be a pair of third helical springs constrained at one end thereof to the pawl 39 and at another end thereof to the plates 9.
  • the third elastic return means 43 are only indirectly constrained to the plates 9, while they are directly anchored to the rotation plate 36 of the scraper 34.
  • the related arrangement between the first pair of pins 10 and the third pair of pins 42 is such that, when the chamber 3 intercepts the first pair of pins 10 and the third pair of pins 42 intercepts the pawl 39, the latter has its greater axis aligned with the stem of the infusion piston 26 in turn aligned with the closure piston 4.
  • the stop element 39 is now composed of a stop pin 101 parallel to the driving pin 5 and slidable in a second pair of slots 102 present in symmetric position on the plates 9.
  • the first pair of symmetric slots 6 has a horizontal extension while the second pair of slots 102 is vertical extended.
  • the end of the stem of the infusion piston 26 is preferably concave, in order to prolong the interaction with the stop pin 39 so as to ensure the complete extraction of the infusion piston 26 and consequently the correct expulsion of the capsule or pod 100. Since the driving and rotation pin 5 of the infusion chamber 3 is above the horizontal translation axis along which the infusion chamber 3 withdraws from the closure piston 4, a possible slight upward rotation of the infusion chamber 3 could lead the stem of the infusion piston 26 to prematurely pass over the stop pin 39. The concavity of the end of the infusion piston 26 stem in which the stop pin 39 is engaged slows the release from the latter, thus ensuring the correct execution of the pod or capsule 100 expulsion. Naturally, for that said in such machine type, neither the coffee powder load hopper nor the scraper are provided.
  • a lip washer 103 is present, applied along the perimeter of the closure piston 4.
  • the lip washer 103 also in case of high hydraulic pressures, allows reducing the closure force to the minimum, in particular the open force of the movement mechanism of the infusion chamber 3.
  • feet 104 fixed lateral to the closure piston 4 and adapted to be engaged with a certain friction in suitable external lateral seats (not shown) of the infusion chamber 3.
  • the vertical plates 9 in this case also have rubber guides 105 adapted to deaden the impact between the infusion chamber 3 and the vertical plates 9 at the conclusion of every rotation of the infusion chamber 3.
  • the rubber guides 105 render the movement of the infusion chamber 3 more silent, and thus on one hand contribute to providing the user with a correct functioning of the infusion group and on the other hand reduce the risk of undesired breaks of parts after impact.
  • the vertical plates 9 also include, in the portion of their inner side close to the closure piston 4, the centring means adapted to ensure that the infusion chamber 3 and closure piston 4 are coaxial in the terminal closing part of the infusion chamber 3.
  • Such centring means comprise at least one curved guide 107 for the sliding of a curved external surface of shape matching the infusion chamber 3 and preferably a rectilinear guide 106 for the sliding of an external flat surface of the infusion chamber
  • the additional locking system of the chamber 3 closure particularly effective when the hydraulic pressures in play are considerable, comprises a lever 120 for controlling a lock pin 121.
  • the lock pin 121 can be rigidly (as shown) or operatively connected to the control lever 120.
  • the control lever 120 is hinged in 122 to the vertical plates 9 and in 123 to the connecting rod element 19 for moving the lock pin 121, so as to insert in through a first hole 124 present in the infusion chamber 3 and a second hole 125 present in the closure piston 4, which are aligned when the infusion chamber 3 reaches in the terminal position of its closure travel.
  • the initial configuration of the infusion group is the following: the driving pin is at the end of its opening travel; the first return means, by exerting a rotation force of the chamber 3 in clockwise sense, position the base of the chamber 3 against the first pair of pins, making the chamber 3 assume a vertical orientation suitable for the loading of the coffee powder quantity; the scraper 34 is set at the right edge of the top of the chamber 3, thus leaving the opening of the chamber 3 free so to not interfere with the coffee powder loading operation; the base of the stem of the infusion piston 26 is disengaged from the stop pawl 39 which in turn is positioned by the third return means, which exert a rotation force in clockwise sense on the pawl 39, against the third pair of pins; the second return means, which exert a force moving the base of the infusion piston 26 stem away from the base of the chamber 3, position the infusion piston 26 at the inner surface of the base of the chamber 3.
  • the motor through the crank element and connecting rod element, actuates the driving pin which starts the movement of the chamber 3 towards
  • the chamber 3 translates towards the closure piston 4 until it is engaged therewith.
  • the base of the infusion piston 26 slides along a lateral face 44 of the pawl 39 and presses it, driving it in anticlockwise rotation against the action of the third return means.
  • the base of the stem of the piston 26 is released from the lateral face 44 of the pawl 39 and allows the third return means to bring the pawl 39 back to the initial position in which it is wedged under the base of the piston 26.
  • the cam of the crank element activates the switch which controls the stopping of the motor and the start of the infusion.
  • the scraper 34 is moved from the right edge of the top of the chamber 3, moving towards the left edge of the top of the chamber 3 where there is the connection surface, then sliding on the connection surface in order to finally be positioned on the external lateral surface of the chamber 3.
  • the infusion water enters from the inlet path placed at the base of the chamber 3, while the infusion exists from an upper outlet path 45 present in the body of the closure piston 4.
  • the seal between the infusion chamber and the closure piston is ensured by a toroidal washer applied on the perimeter of the closure piston itself.
  • the chamber 3 translates and opens.
  • the infusion piston 26 is locked by the pawl 39 and is moved away from the base of the chamber 3, bring the spent coffee powder outside the chamber 3.
  • the infusion group reassumes the initial configuration as described above.
  • the lifting of the infusion piston during the opening of the infusion chamber is due to the stop pin which intercepts the base of the infusion piston stem which then, during the overturning of the infusion chamber, is released from the stop pin and returns towards the base of the infusion chamber, due to its own weight and/or the presence of the return spring.
  • the frictions tied to the movement of the infusion group are reduced to a minimum, both due to the intrinsic nature of the materials which come into contact, which have low friction coefficients, and because the contract surfaces are limited to the contact points between the interception pins and the external surface of the infusion chamber.
  • the espresso coffee machine infusion group as conceived is susceptible to numerous modifications and variations, all part of the scope of the inventive concept; moreover, all details can be substituted by technically equivalent elements.
  • the materials used, as well as the size can be of any type according to needs and to the state of the art.

Abstract

L'invention porte sur un groupe d'infusion de machine à café expresso (1), qui comprend une chambre d'infusion (3) portée de façon à pouvoir tourner au moyen d'une broche d'entraînement (5) coulissant le long d'un guide fixe afin d'effectuer une roto-translation par rapport à un piston de fermeture (4) entre une position fermée et une position ouverte pour charger une charge de poudre de café, la chambre d'infusion portant, à l'intérieur, un piston d'infusion (26) qui peut être déplacé entre une position rétractée et une position déployée pour expulser ladite charge de poudre de café. En outre, un premier moyen (7) est disposé pour intercepter la rotation de la chambre d'infusion à son angle d'alignement avec le piston de fermeture, et un deuxième moyen (8) permet d'intercepter la translation de la chambre d'infusion pour permettre sa rotation vers la position de charge.
PCT/IT2008/000531 2008-08-01 2008-08-01 Groupe d'infusion de machine à café expresso WO2010013274A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN200880129661.7A CN102118991B (zh) 2008-08-01 2008-08-01 浓缩咖啡机冲泡组件
PCT/IT2008/000531 WO2010013274A1 (fr) 2008-08-01 2008-08-01 Groupe d'infusion de machine à café expresso

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/IT2008/000531 WO2010013274A1 (fr) 2008-08-01 2008-08-01 Groupe d'infusion de machine à café expresso

Publications (1)

Publication Number Publication Date
WO2010013274A1 true WO2010013274A1 (fr) 2010-02-04

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PCT/IT2008/000531 WO2010013274A1 (fr) 2008-08-01 2008-08-01 Groupe d'infusion de machine à café expresso

Country Status (2)

Country Link
CN (1) CN102118991B (fr)
WO (1) WO2010013274A1 (fr)

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITBG20090058A1 (it) * 2009-10-27 2011-04-28 Emmebielle S R L Unita' per la produzione di bevande infuse, in particolare caffe'
EP3053490A1 (fr) 2015-02-04 2016-08-10 Tuttoespresso S.r.l. Unité d'infusion pour une machine de distribution de boisson
CN105996787A (zh) * 2016-07-29 2016-10-12 芜湖艾尔达科技有限责任公司 一种即热可控温机械式饮料机
CN107212754A (zh) * 2017-06-06 2017-09-29 群韵饮料机械（上海）有限公司 虹吸式咖啡机
US10966564B2 (en) 2016-08-03 2021-04-06 Koninklijke Douwe Egberts B.V. System for preparing a quantity of beverage suitable for consumption
US11096516B2 (en) 2016-08-03 2021-08-24 Koninklijke Douwe Egberts B.V. System, apparatus, method, capsule and kit of capsules for preparing a beverage
US11129493B2 (en) 2016-08-03 2021-09-28 Koninklijke Douwe Egberts B.V. System for preparing a beverage
US11129492B2 (en) 2016-08-03 2021-09-28 Koninklijke Douwe Egberts B.V. System for preparing a beverage
US11197574B2 (en) 2016-08-03 2021-12-14 Koninklijke Douwe Egberts B.V. System and method for preparing a beverage field and background
US11304555B2 (en) 2016-08-03 2022-04-19 Koninklijke Douwe Egberts B.V. System and apparatus for preparing a beverage
US11395557B2 (en) 2016-08-03 2022-07-26 Koninklijke Douwe Egberts B.V. Apparatus and method for preparing a beverage and system comprising the apparatus and an exchangeable capsule
US11576519B2 (en) 2016-08-03 2023-02-14 Koninklijke Douwe Egberts B.V. System, apparatus, method, capsule and kit of capsules for preparing a beverage
US11944230B2 (en) 2018-12-12 2024-04-02 Koninklijke Douwe Egberts B.V. Air purge groove

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITMI20112430A1 (it) * 2011-12-29 2013-06-30 De Longhi Appliances Srl Gruppo di infusione per macchina da caffe'
FR3000657B1 (fr) * 2013-01-07 2017-12-29 Seb Sa Distributeur automatique de boisson infusee a partir d'une mouture
NL2014557B1 (en) * 2015-03-31 2017-01-06 Bravilor Holding Bv Beverage preparation device.
PT109304B (pt) * 2016-04-07 2021-02-26 Novadelta - Comércio E Indústria De Cafés, S.A. Dispositivo de extração com câmara de recolha adaptada
CN105996780B (zh) * 2016-07-21 2019-03-05 宁波博菱电器股份有限公司 一种咖啡机的酿造系统
CN110236398A (zh) * 2019-06-14 2019-09-17 深圳市西啡科技有限公司 一种饮料萃取单元及饮料制备机器
CN112493858A (zh) * 2021-01-27 2021-03-16 深圳市福慧泰商贸有限公司 一种吊耳咖啡冲泡包装装置

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EP0486433A1 (fr) * 1990-11-16 1992-05-20 Jura Elektroapparate Ag Dispositif d'infusion pour une machine à café
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EP0913111A1 (fr) * 1997-11-03 1999-05-06 San Remo S.r.l. Machine à café
EP1336365A1 (fr) * 2001-11-23 2003-08-20 Azkoyen Industrial, S.A. Distributeur extractible pour machines a cafe
EP1360919A1 (fr) * 2002-05-08 2003-11-12 Jofemar, S.A. Appareil de préparation de boissons chaudes dans un distributeur automatique
EP1459663A1 (fr) * 2003-03-12 2004-09-22 Samsung Gwang Ju Electronics Co., Ltd. Système pour extraire du café

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DE4119559A1 (de) * 1990-06-14 1991-12-19 Salvatore Ferrante Mechanische vorrichtung zur ausfuehrung des arbeitszyklus eines automatischen apparates fuer die zubereitung von kaffee oder von anderen heissen getraenken
EP0486433A1 (fr) * 1990-11-16 1992-05-20 Jura Elektroapparate Ag Dispositif d'infusion pour une machine à café
DE19848370A1 (de) * 1997-10-22 1999-04-29 De Longhi Spa Vorrichtung und Verfahren zur Zubereitung eines Kaffeeaufgusses
EP0913111A1 (fr) * 1997-11-03 1999-05-06 San Remo S.r.l. Machine à café
EP1336365A1 (fr) * 2001-11-23 2003-08-20 Azkoyen Industrial, S.A. Distributeur extractible pour machines a cafe
EP1360919A1 (fr) * 2002-05-08 2003-11-12 Jofemar, S.A. Appareil de préparation de boissons chaudes dans un distributeur automatique
EP1459663A1 (fr) * 2003-03-12 2004-09-22 Samsung Gwang Ju Electronics Co., Ltd. Système pour extraire du café

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITBG20090058A1 (it) * 2009-10-27 2011-04-28 Emmebielle S R L Unita' per la produzione di bevande infuse, in particolare caffe'
EP3053490A1 (fr) 2015-02-04 2016-08-10 Tuttoespresso S.r.l. Unité d'infusion pour une machine de distribution de boisson
CN105996787A (zh) * 2016-07-29 2016-10-12 芜湖艾尔达科技有限责任公司 一种即热可控温机械式饮料机
US11304555B2 (en) 2016-08-03 2022-04-19 Koninklijke Douwe Egberts B.V. System and apparatus for preparing a beverage
US10966564B2 (en) 2016-08-03 2021-04-06 Koninklijke Douwe Egberts B.V. System for preparing a quantity of beverage suitable for consumption
US11096516B2 (en) 2016-08-03 2021-08-24 Koninklijke Douwe Egberts B.V. System, apparatus, method, capsule and kit of capsules for preparing a beverage
US11129493B2 (en) 2016-08-03 2021-09-28 Koninklijke Douwe Egberts B.V. System for preparing a beverage
US11129492B2 (en) 2016-08-03 2021-09-28 Koninklijke Douwe Egberts B.V. System for preparing a beverage
US11197574B2 (en) 2016-08-03 2021-12-14 Koninklijke Douwe Egberts B.V. System and method for preparing a beverage field and background
US11395557B2 (en) 2016-08-03 2022-07-26 Koninklijke Douwe Egberts B.V. Apparatus and method for preparing a beverage and system comprising the apparatus and an exchangeable capsule
US11576519B2 (en) 2016-08-03 2023-02-14 Koninklijke Douwe Egberts B.V. System, apparatus, method, capsule and kit of capsules for preparing a beverage
CN107212754A (zh) * 2017-06-06 2017-09-29 群韵饮料机械（上海）有限公司 虹吸式咖啡机
US11944230B2 (en) 2018-12-12 2024-04-02 Koninklijke Douwe Egberts B.V. Air purge groove

Also Published As

Publication number Publication date
CN102118991A (zh) 2011-07-06
CN102118991B (zh) 2014-10-29

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