AU2002223527A1 - Closed cartridge for preparing a beverage, for extraction under pressure - Google Patents
Closed cartridge for preparing a beverage, for extraction under pressureInfo
- Publication number
- AU2002223527A1 AU2002223527A1 AU2002223527A AU2002223527A AU2002223527A1 AU 2002223527 A1 AU2002223527 A1 AU 2002223527A1 AU 2002223527 A AU2002223527 A AU 2002223527A AU 2002223527 A AU2002223527 A AU 2002223527A AU 2002223527 A1 AU2002223527 A1 AU 2002223527A1
- Authority
- AU
- Australia
- Prior art keywords
- dish
- thickness
- cartridge
- plastic
- cartridge according
- 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.)
- Granted
Links
Description
Closed cartridge for preparing a beverage, for extraction under pressure
The present invention relates to a sealed cartridge, for extraction under pressure, containing a substance for the preparation of a beverage chosen from ground roasted coffee, tea, instant coffee, a mixture of ground coffee and of instant coffee, a chocolate based product or any other dehydrated edible substance, comprising a dish with a bottom with a central part and a peripheral part and a side wall, having substantially the shape of a frustum' of a cone, and a circular edge with a diameter greater at the bottom, and a cover welded to the periphery of the edge of the dish, and the cover is intended to be torn only through the effect of the force of the extraction fluid when extraction starts, the said cartridge comprising, in the dish at the level of the bottom, a means guaranteeing retention of the solid substance when it is opened.
Patent Application EP 00113879.1, dated 30 June 2000, in the name of the Applicant, relates to a capsule cage (or cartridge) , capable of being mounted in a coffee machine, comprising a first part with a channel for the supply of water and a second part forming a housing for the capsule for extraction, in which a perforation system independent of the water-supply channel is provided directly at the exit from the said channel. The cartridge with the means for retention of solid substance, as mentioned above, is insufficient to guarantee complete cleanliness when changing cartridges .
The object of the present invention is to perfect a cartridge provided for the extraction cage as mentioned above and which does not lead to leaks of grounds or of any other solid substance when the said cartridge is changed.
The present invention relates to a closed cartridge according to the preamble of Claim 1 , in which the means guaranteeing retention of solid substance is a sheet of fabric sealed in the bottom of the dish over two areas, on the one hand in the central part and, on the other hand in the peripheral part of the said bottom. Sealing over the peripheral part of the bottom may be effected over the periphery as a whole or only over a portion of the said periphery. It involves arranging, in each cartridge, a non-return system for the coffee grounds or for any other solid substance extracted in the said cartridge. This system must suit the construction of the extraction head according to Patent Application EP 00113879.1 above.
The fabric used according to the invention has, on the one hand, an acceptable cost and, on the other hand, is simple to produce, allowing easy opening of the capsule by the injection points, being satisfactorily resistant to hot water and providing satisfactory closure after extraction, i.e. when the cartridge is removed.
The fabric used may be any type of fabric, woven or non-woven, made from plastic fibres, from vegetable fibres or from animal fibres. The fabric used is preferably fabric made from polypropylene, polyester, polyurethane, polyamide or cellulose having a thickness of between 15 and 200 microns. The fabric is hot-sealed in the aforesaid two zones in the bottom of the dish.
The cover is heat-welded or crimped to the periphery of the dish. A cartridge which can withstand the pressures which may range up to 15 bar in the extraction system is thereby obtained.
The cartridge is filled with a substance for the preparation of a beverage, as mentioned above. This substance is preferably ground roasted coffee.
"Dish" is understood to mean a frustoconical, hemispherical or frustopyramidal element. Naturally, the bottom of the dish does not have to be flat.
The principal body of the cartridge, namely the dish, of frustoconical shape and of semi-rigid nature, may consist of a material chosen from aluminium having a thickness of 20 to 100 μm, a pure or multi-layer plastic, a cardboard/aluminium/plastic composite and a cardboard/plastic composite.
The cover of the cartridge, of flexible nature, may be made from a material chosen from aluminium with a thickness of 15 to 60 μm and a multi-layer material comprising either paper of 20 to 60 g/m2, plastic of a thickness of 20 to 60 μm and aluminium with a thickness of 5 to 20 μm, or EVOH or PVDC of a thickness of 5 to 30 μm and plastic (PP, PE or PA) of 20 to 100 μm, or PET (5 to 30 μm) and plastic (PP, PE) of 20 to 100 μm, or PET that is metallized or equipped with a layer which forms an efficient barrier, such as Si02.
The size of the cartridge according to the invention may vary according to the volume of coffee it is desired to prepare. The measure of coffee may vary between 5 and 20 g, the diameter of the cartridge is between 2.5 and 6 cm and the thickness of the bed of coffee between 10 and 40 mm.
The remainder of the description is given with reference to the drawings, in which:
Figure 1 is a diagrammatic representation of the cartridge according to the invention; and Figure 2 is a partial section of the capsule cage for the extraction of the cartridge of Figure 1.
The solution of the invention, according to Figure 1, is to provide, in the cartridge (1) having a dish (12)
with bottom (13) and side wall (14) , with a circular edge (20) and a cover (15) , a layer of fabric (16) made from polyurethane having a thickness of 60 microns in the bottom (13) . This layer is sealed over two zones of the bottom of the dish, namely in the central part (17) and in the peripheral part (18) of the said bottom. Sealing is effected over the entire periphery of the bottom. The bed of coffee (19) is deposited on the fabric (16) . The cartridge shown contains 5 g of coffee and it has a diameter of 35 mm and a coffee-bed thickness of 30 mm. Sealing of the central part is effected over a diameter of the order of 8 mm and that of the peripheral part over a width of the order of 1-2 mm.
The capsule cage (1) according to Figure 2 comprises a thread (2) so that it can be screwed onto the coffee machine. The housing (3) is required so that a gasket can be arranged on it, allowing satisfactory sealing of the system. The channel (4) allows the supply of water into the housing (5) of the capsule. Directly at the exit from the channel (4) is the perforation system (6) consisting of three points with apertures (9) .
When it is desired to extract the cartridge of Figure 1, it is placed in the housing (5) of the capsule cage (1) . The points (6) will nick the bottom of the dish and perforate or push back the fabric between the two sealing zones (17) and (18) . The advantage of this fabric is that it is resistant to perforation and the water passes through the said fabric and, even if the fabric is perforated anyway, at the end of extraction its flexibility and its elasticity enables it to re- close when the said points are removed from the cartridge, and the grounds do not emerge via the nicks. A cartridge guaranteeing satisfactory cleanliness of the extraction system is thus provided.
Claims (6)
1. Sealed cartridge, for extraction under pressure, containing a substance for the preparation of a beverage chosen from ground roasted coffee, tea, instant coffee, a mixture of ground coffee and of instant coffee, a chocolate based product or any other dehydrated edible substance, comprising a dish with a bottom with a central part and a peripheral part and a side wall, having substantially the shape of a frustum of a cone, and a circular edge with a diameter greater at the bottom, and a cover welded to the periphery of the edge of the dish, and the cover is intended to be torn only through the effect of the force of the extraction fluid when extraction starts, the said cartridge comprising, in the dish at the level of the bottom, a means guaranteeing retention of the solid substance when it is opened, characterized in that the means guaranteeing retention of solid substance is a sheet of fabric sealed in the bottom of the dish over two areas, on the one hand in the central part and, on the other hand in the peripheral part of the said bottom.
2. Cartridge according to Claim 1, characterized in that the cover is welded or crimped to the edge of the dish.
3. Cartridge according to one of Claims 1 or 2, characterized in that the dish is made from a material chosen from aluminium having a thickness of 20 to 100 μm, a pure or multi-layer plastic, a cardboard/aluminium/plastic composite and a cardboard/plastic composite.
4. Cartridge according to one of Claims 1 to 3, characterized in that the cover is made from a material chosen from aluminium with a thickness of 15 to 60 μm and a multi-layer material comprising either paper of 20 to 60 g/m2, plastic of a thickness of 20 to 60 μm and aluminium with a thickness of 5 to 20 μm, or EVOH or PVDC of a thickness of 5 to 30 μm and plastic (PP, PE or PA) of 20 to 100 μm, or PET (5 to 30 μm) and plastic (PP, PE) of 20 to 100 μm, or PET that is metallized or equipped with a layer which forms an efficient barrier, such as Si02.
5. Cartridge according to one of Claims 1 to 4, characterized in that it has a diameter of between 2.5 and 6 cm and a height of between 10 and 40 mm.
6. Cartridge according to one of Claims 1 to 5, characterized in that the fabric has a thickness of between 15 and 200 microns.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP00120936.0 | 2000-09-26 | ||
EP00120936A EP1190959B1 (en) | 2000-09-26 | 2000-09-26 | Capsule for beverage preparation with extraction under pressure |
PCT/EP2001/010344 WO2002026588A1 (en) | 2000-09-26 | 2001-09-06 | Closed cartridge for preparing a beverage, for extraction under pressure |
Publications (2)
Publication Number | Publication Date |
---|---|
AU2002223527A1 true AU2002223527A1 (en) | 2002-06-20 |
AU2002223527B2 AU2002223527B2 (en) | 2004-04-01 |
Family
ID=8169951
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AU2002223527A Expired AU2002223527B2 (en) | 2000-09-26 | 2001-09-06 | Closed cartridge for preparing a beverage, for extraction under pressure |
AU2352702A Pending AU2352702A (en) | 2000-09-26 | 2001-09-06 | Closed cartridge for preparing a beverage, for extraction under pressure |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AU2352702A Pending AU2352702A (en) | 2000-09-26 | 2001-09-06 | Closed cartridge for preparing a beverage, for extraction under pressure |
Country Status (21)
Country | Link |
---|---|
US (2) | US7153530B2 (en) |
EP (1) | EP1190959B1 (en) |
JP (1) | JP4675024B2 (en) |
KR (1) | KR100815103B1 (en) |
AR (1) | AR030968A1 (en) |
AT (1) | ATE263086T1 (en) |
AU (2) | AU2002223527B2 (en) |
BR (1) | BR0114162B1 (en) |
CA (1) | CA2422681C (en) |
DE (1) | DE60009495T2 (en) |
DK (1) | DK1190959T3 (en) |
ES (1) | ES2216791T3 (en) |
MX (1) | MXPA03002630A (en) |
MY (1) | MY128455A (en) |
NO (1) | NO325336B1 (en) |
NZ (1) | NZ525110A (en) |
PT (1) | PT1190959E (en) |
SI (1) | SI1190959T1 (en) |
TW (1) | TW510883B (en) |
WO (1) | WO2002026588A1 (en) |
ZA (1) | ZA200303213B (en) |
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NL2019254B9 (en) | 2016-10-07 | 2018-09-10 | Douwe Egberts Bv | A capsule, a system for preparing a potable beverage from such a capsule and use of such a capsule in a beverage preparation device |
RU2754461C1 (en) | 2016-11-09 | 2021-09-02 | Пепсико, Инк. | Devices, methods and systems for preparation of carbonated beverages |
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NL2019253B1 (en) | 2017-07-14 | 2019-01-28 | Douwe Egberts Bv | Assembly of a capsule and a brew chamber, brew chamber, beverage preparation machine, capsule and use of a capsule. |
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FR3085301B1 (en) | 2018-09-04 | 2020-09-04 | Ahlstrom Munksjo Specialties | COMPOSTABLE CAPSULE INTENDED TO CLOSE A CAPSULE AND CAPSULE CLOSED BY THE OPERCULE |
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ES1262689Y (en) | 2020-12-14 | 2021-06-04 | Del Norte Ind Cafe | Single-dose capsule for espresso machines |
KR102413536B1 (en) | 2022-01-20 | 2022-06-27 | 코스맥스네오 주식회사 | Cosmetics containers and sheet manufacturing method for manufacturing them |
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US2899886A (en) * | 1959-08-18 | rodth | ||
US2778739A (en) * | 1954-07-16 | 1957-01-22 | Sealpak Corp | Package for beverage infusion material |
US3843806A (en) * | 1972-03-29 | 1974-10-22 | Standard Packaging Corp | Granular package |
US4077876A (en) * | 1976-01-14 | 1978-03-07 | Amf Incorporated | Shut-off valve apparatus |
CH605293A5 (en) * | 1976-12-17 | 1978-09-29 | Nestle Sa | |
JPS61280812A (en) * | 1985-06-07 | 1986-12-11 | ソシエテ デ プロデユイ ネツスル ソシエテ アノニム | Coffee extractor |
DE3664893D1 (en) * | 1985-11-11 | 1989-09-14 | Douwe Egberts Tabaksfab | A disposable filter cartridge |
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US4857053A (en) * | 1988-08-29 | 1989-08-15 | Dalton Michael J | Matrix septum |
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JP2000262405A (en) * | 1999-03-18 | 2000-09-26 | Soc Prod Nestle Sa | Sealed cartridge for drink extraction |
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CA2421128C (en) * | 2002-03-14 | 2008-05-20 | Robert Hale | Beverage cartridge and filter assembly |
-
2000
- 2000-09-26 AT AT00120936T patent/ATE263086T1/en active
- 2000-09-26 SI SI200030344T patent/SI1190959T1/en unknown
- 2000-09-26 DE DE60009495T patent/DE60009495T2/en not_active Expired - Lifetime
- 2000-09-26 EP EP00120936A patent/EP1190959B1/en not_active Expired - Lifetime
- 2000-09-26 DK DK00120936T patent/DK1190959T3/en active
- 2000-09-26 ES ES00120936T patent/ES2216791T3/en not_active Expired - Lifetime
- 2000-09-26 PT PT00120936T patent/PT1190959E/en unknown
-
2001
- 2001-08-06 TW TW090119143A patent/TW510883B/en not_active IP Right Cessation
- 2001-08-08 MY MYPI20013723A patent/MY128455A/en unknown
- 2001-09-06 KR KR1020037004299A patent/KR100815103B1/en active IP Right Grant
- 2001-09-06 BR BRPI0114162-7B1A patent/BR0114162B1/en active IP Right Grant
- 2001-09-06 JP JP2002530386A patent/JP4675024B2/en not_active Expired - Lifetime
- 2001-09-06 AU AU2002223527A patent/AU2002223527B2/en not_active Expired
- 2001-09-06 CA CA002422681A patent/CA2422681C/en not_active Expired - Lifetime
- 2001-09-06 MX MXPA03002630A patent/MXPA03002630A/en active IP Right Grant
- 2001-09-06 AU AU2352702A patent/AU2352702A/en active Pending
- 2001-09-06 NZ NZ525110A patent/NZ525110A/en not_active IP Right Cessation
- 2001-09-06 WO PCT/EP2001/010344 patent/WO2002026588A1/en active IP Right Grant
- 2001-09-26 AR ARP010104545A patent/AR030968A1/en not_active Application Discontinuation
-
2003
- 2003-03-25 NO NO20031358A patent/NO325336B1/en not_active IP Right Cessation
- 2003-03-26 US US10/396,557 patent/US7153530B2/en not_active Expired - Lifetime
- 2003-04-24 ZA ZA200303213A patent/ZA200303213B/en unknown
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2006
- 2006-11-13 US US11/559,206 patent/US7658141B2/en not_active Expired - Lifetime
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