EP0512468B1 - Closed cartridge for making a beverage - Google Patents

Closed cartridge for making a beverage Download PDF

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Publication number
EP0512468B1
EP0512468B1 EP92107536A EP92107536A EP0512468B1 EP 0512468 B1 EP0512468 B1 EP 0512468B1 EP 92107536 A EP92107536 A EP 92107536A EP 92107536 A EP92107536 A EP 92107536A EP 0512468 B1 EP0512468 B1 EP 0512468B1
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EP
European Patent Office
Prior art keywords
plastic
aluminium
cup
cover
thick
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.)
Expired - Lifetime
Application number
EP92107536A
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German (de)
French (fr)
Other versions
EP0512468A1 (en
Inventor
Olivier Fond
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.)
Societe des Produits Nestle SA
Nestle SA
Original Assignee
Societe des Produits Nestle SA
Nestle SA
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Priority claimed from EP91107650A external-priority patent/EP0512148A1/en
Application filed by Societe des Produits Nestle SA, Nestle SA filed Critical Societe des Produits Nestle SA
Priority to EP92107536A priority Critical patent/EP0512468B1/en
Publication of EP0512468A1 publication Critical patent/EP0512468A1/en
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    • 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
    • B65D85/8061—Filters
    • 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
    • B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
    • B65D81/34—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents for packaging foodstuffs or other articles intended to be cooked or heated within the package

Definitions

  • the invention relates to a closed cartridge, intended to be extracted under pressure, containing a substance for the preparation of a drink, comprising a cup with a bottom and a side wall having substantially the shape of a truncated cone and a circular rim. diameter greater than the bottom and a seal welded to the periphery of the rim of the cup.
  • Document GB-A-938617 relates to a cartridge with an internal filter providing two compartments and intended to be extracted by a device which pierces it on its lower and upper faces before said extraction.
  • the drawback of such a cartridge is that, because of the thickness of said faces, it requires the use of a relatively dangerous piercing device which does not guarantee perfect cleanliness during said extraction and easy release at the end. This prior drilling is also necessary for the cartridge according to document US-A-2,778,739.
  • capsules for the preparation of a drink is motivated by several reasons: hygiene, optimal conservation of coffee, ease of use, better control of coffee quality obtained and good reproducibility of the extraction conditions.
  • capsules available only the closed capsules, which open under the effect of the pressure of water injected, respond more fully to the arguments set out above. These capsules are distinguished by their opening system.
  • the cartridge, object of the present invention is of a much lower price and its manufacture considerably easier, while allowing to have a cartridge for the preparation of a drink, in particular an espresso coffee, that is to say that is to say in which an extraction of the coffee is carried out under a pressure of between 1 and 15 bars.
  • the invention relates to a closed cartridge according to the preamble of claim 1, which is characterized by the characteristics indicated in the second part of claim 1.
  • the cartridge according to the invention can be extracted according to the method and with the device which is the subject of European patent application No. 91107462.3.
  • the extraction device provided in this patent application, makes it possible to extract this simplified capsule under good conditions.
  • the capsule it is either the cover or the bottom of the cup which is torn under the effect of the extraction fluid. If it is the seal, the bottom of the cup is first opened by the water injection member when the cartridge is put in place in the extraction device and the cover is torn in said device during the pressure build-up and after use, said cartridge can be easily and completely removed with a minimum of waste marc or packaging material.
  • the cover is normally welded around the periphery of the cup. Welding is done by heat sealing, the parts to be welded have on their facing faces a welding lacquer. It is also possible to fold the lower rim of the cup over the cover and thus achieve crimping. Both with soldering alone and combined with crimping, a cartridge resistant to pressures of up to 15 bar is obtained at the time of extraction.
  • the cartridge is filled with a substance for the preparation of a drink.
  • This substance is preferably roasted and ground coffee, but can also be tea, soluble coffee, a mixture of ground coffee and soluble coffee, a chocolate product or any other edible dehydrated substance.
  • cup we also mean a frustoconical, hemispherical or truncpyramidal element. It is understood that the bottom of the cup is not necessarily plane, but may also have the above geometries.
  • the main body of the capsule namely the cup, of frustoconical shape and of semi-rigid nature, can be made of aluminum with a thickness of 20 to 100 ⁇ m, of pure plastic or multi-layers with possibly a barrier layer with oxygen such as EVOH or PVDC, a multi-layer film such as cardboard, aluminum, plastic or cardboard, plastic with possibly an oxygen barrier layer such as EVOH or PVDC.
  • the capsule lid of a flexible nature, can be made of aluminum with a thickness of 15 to 60 ⁇ m, or of a multi-layer film comprising, either paper of 20 at 60 g / m2, plastic such as polyethylene with a thickness of 20 to 60 ⁇ m and aluminum with a thickness of 5 to 20 ⁇ m, either EVOH or PVDC with a thickness of 5 at 30 ⁇ m and plastic (PP, PE, PA) from 20 to 100 ⁇ m, or PET (5 to 30 ⁇ m) and plastic (PP, PE) from 20 to 100 ⁇ m, either PET metallized or provided with a high barrier layer such as SiO2.
  • the multi-layer combination - aluminum foil can also be considered.
  • an additional layer is provided, based on filter paper or woven or non-woven fibers based on PET or PP.
  • this layer can be interposed between the body of the capsule and the cover and bonded or welded to these two elements.
  • This material can have a density of 20 to 50 g / m 2 .
  • the layer of filter paper or woven or woven fibers can be placed outside the capsule and bonded or welded to the cover.
  • the cartridge according to the invention can be of variable size according to the volume of coffee that one wishes to prepare.
  • the dose of coffee contained can vary between 5 and 20 g, the diameter of the cartridge is between 2.5 and 6 cm and the thickness of the coffee bed between 10 and 25 mm.
  • the cartridge (1) comprises a cup (2) with a bottom (5) and a frustoconical side wall (6).
  • the cup is made of 50 ⁇ m thick aluminum.
  • the cartridge contains roasted coffee (3) and it is closed by a cover (4) made of aluminum / paper composite. This cover is welded to the periphery (7) of the rim of the cup.
  • the cartridge (8) of FIG. 2 comprises a cup (2) identical to that of FIG. 1, except that the rim (9) of the cup is wider thereby allowing it to be folded down, that is to say crimping around the periphery of the cover (4).
  • the material used is the same as that of FIG. 1.
  • the cartridge (30) of FIG. 3 comprises on the cover (4) a filter paper (31) welded against the periphery of said cover and the periphery of the cup (2).
  • the cartridge according to the invention is of the type which opens under the effect of pressure but is of simpler and more economical design and manufacture than that of the prior art.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Food Science & Technology (AREA)
  • Packages (AREA)
  • Apparatus For Making Beverages (AREA)
  • Closures For Containers (AREA)
  • Packging For Living Organisms, Food Or Medicinal Products That Are Sensitive To Environmental Conditiond (AREA)
  • Tea And Coffee (AREA)
  • Containers Having Bodies Formed In One Piece (AREA)
  • Coating Apparatus (AREA)
  • Medicines Containing Antibodies Or Antigens For Use As Internal Diagnostic Agents (AREA)
  • Steroid Compounds (AREA)
  • Non-Alcoholic Beverages (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
  • Nitrogen Condensed Heterocyclic Rings (AREA)
  • Laminated Bodies (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)

Abstract

The invention relates to a closed cartridge provided in order to be extracted under pressure, containing a substance (3) for preparing a beverage, comprising a dish (2) with an upper face and lateral wall having a substantially frustoconical shape and a lower face (4) having a diameter greater than the upper face, in which the lower face is a protective cover welded onto the perimeter of the lower edge of the dish and consists of an oxygen-impermeable flexible material chosen from the group consisting of aluminium, an aluminium/plastic composite, an aluminium/plastic/paper composite, pure plastic or multi-layers. <IMAGE>

Description

L'invention concerne une cartouche fermée, prévue pour être extraite sous pression, contenant une substance pour la préparation d'une boisson, comprenant une coupelle avec un fond et une paroi latérale ayant sensiblement la forme d'un tronc de cône et un rebord circulaire de diamètre supérieur au fond et un opercule soudé sur le pourtour du rebord de la coupelle.The invention relates to a closed cartridge, intended to be extracted under pressure, containing a substance for the preparation of a drink, comprising a cup with a bottom and a side wall having substantially the shape of a truncated cone and a circular rim. diameter greater than the bottom and a seal welded to the periphery of the rim of the cup.

Le document GB-A-938617 concerne une cartouche avec filtre intérieur ménageant deux compartiments et destinée à être extraite par un dispositif qui la perce sur ses faces inférieures et supérieures avant ladite extraction. L'inconvénient d'une telle cartouche est qu'elle nécessite en raison de l'épaisseur desdites faces l'utilisation d'un dispositif de percement relativement dangereux ne garantissant pas une parfaite propreté lors de ladite extraction et un dégagement aisé à la fin. Ce percement préalable est aussi nécessaire pour la cartouche selon le document US-A-2,778,739.Document GB-A-938617 relates to a cartridge with an internal filter providing two compartments and intended to be extracted by a device which pierces it on its lower and upper faces before said extraction. The drawback of such a cartridge is that, because of the thickness of said faces, it requires the use of a relatively dangerous piercing device which does not guarantee perfect cleanliness during said extraction and easy release at the end. This prior drilling is also necessary for the cartridge according to document US-A-2,778,739.

L'utilisation de capsules pour la préparation d'une boisson, surtout dans le domaine des cafés type espresso extraits sous pression, est motivée par plusieurs raisons: hygiène, conservation optimale du café, facilité d'usage, meilleure maîtrise de la qualité du café obtenu et bonne reproductibilité des conditions d'extraction. Parmi l'ensemble des capsules disponibles, seules les capsules fermées, s'ouvrant sous l'effet de la pression d'eau injectée, répondent plus complètement aux arguments énoncés ci-dessus. Ces capsules se distinguent par leur système d'ouverture.The use of capsules for the preparation of a drink, especially in the field of espresso coffees extracted under pressure, is motivated by several reasons: hygiene, optimal conservation of coffee, ease of use, better control of coffee quality obtained and good reproducibility of the extraction conditions. Among all the capsules available, only the closed capsules, which open under the effect of the pressure of water injected, respond more fully to the arguments set out above. These capsules are distinguished by their opening system.

Celles faisant l'objet du document CH-A-605293 présentent des zones affaiblies qui se déchirent préférentiellement sous l'effet de la pression et un filtre intérieur. Cette solution présente le désavantage d'augmenter la complexité et le prix de la capsule car les matières employées doivent être traitées de manière très précise pour que l'ouverture soit correcte et reproductible. Une solution identique est mentionnée dans le document FR-A-2211924.Those which are the subject of document CH-A-605293 have weakened zones which preferentially tear under the effect of pressure and an internal filter. This solution has the disadvantage of increasing the complexity and the price of the capsule because the materials used must be treated very precisely so that the opening is correct and reproducible. An identical solution is mentioned in document FR-A-2211924.

La cartouche, objet de la présente invention, est d'un prix nettement plus faible et sa fabrication considérablement plus aisée, tout en permettant d'avoir une cartouche pour la confection d'une boisson, en particulier un café espresso, c'est-à-dire dans laquelle on effectue une extraction du café sous une pression comprise entre 1 et 15 bars.The cartridge, object of the present invention, is of a much lower price and its manufacture considerably easier, while allowing to have a cartridge for the preparation of a drink, in particular an espresso coffee, that is to say that is to say in which an extraction of the coffee is carried out under a pressure of between 1 and 15 bars.

L'invention concerne une cartouche fermée selon le préambule de la revendication 1, qui est caractérisée par les caractéristiques indiquées dans la seconde partie de la revendication 1.The invention relates to a closed cartridge according to the preamble of claim 1, which is characterized by the characteristics indicated in the second part of claim 1.

La cartouche selon l'invention, peut être extraite selon le procédé et avec le dispositif faisant l'objet de la demande de brevet européen No. 91107462.3. Le dispositif d'extraction, prévu dans cette demande de brevet, permet d'extraire dans de bonne conditions cette capsule simplifiée. Pour l'extraction de la capsule c'est soit l'opercule, soit le fond de la coupelle qui est déchiré sous l'effet du fluide d'extraction. Si c'est l'opercule, le fond de la coupelle est d'abord ouvert par l'organe d'injection d'eau lors de la mise en place de la cartouche dans le dispositif d'extraction et l'opercule est déchiré dans ledit dispositif lors de la montée en pression et après usage, ladite cartouche peut être retirée facilement et intégralement avec un minimum de déchet de marc ou de matière d'emballage.The cartridge according to the invention can be extracted according to the method and with the device which is the subject of European patent application No. 91107462.3. The extraction device, provided in this patent application, makes it possible to extract this simplified capsule under good conditions. For the extraction of the capsule, it is either the cover or the bottom of the cup which is torn under the effect of the extraction fluid. If it is the seal, the bottom of the cup is first opened by the water injection member when the cartridge is put in place in the extraction device and the cover is torn in said device during the pressure build-up and after use, said cartridge can be easily and completely removed with a minimum of waste marc or packaging material.

L'opercule est normalement soudé sur le pourtour de la coupelle. Le soudage se fait par thermosoudage, les parties à souder comportent sur leurs faces en regard une laque de soudage. On peut également replier le rebord inférieur de la coupelle sur l'opercule et réaliser ainsi un sertissage. Aussi bien avec le soudage seul que combiné avec le sertissage, on obtient une cartouche résistant à des pressions pouvant aller jusqu'à 15 bars au moment de l'extraction.The cover is normally welded around the periphery of the cup. Welding is done by heat sealing, the parts to be welded have on their facing faces a welding lacquer. It is also possible to fold the lower rim of the cup over the cover and thus achieve crimping. Both with soldering alone and combined with crimping, a cartridge resistant to pressures of up to 15 bar is obtained at the time of extraction.

La cartouche est remplie d'une substance pour la préparation d'une boisson. Cette substance est de préférence du café torréfié et moulu, mais peut être aussi du thé, du café soluble, un mélange de café moulu et de café soluble, un produit chocolaté ou toute autre substance comestible déshydratée.The cartridge is filled with a substance for the preparation of a drink. This substance is preferably roasted and ground coffee, but can also be tea, soluble coffee, a mixture of ground coffee and soluble coffee, a chocolate product or any other edible dehydrated substance.

Par coupelle, on entend aussi bien un élément tronconique, hémisphérique ou troncpyramidal. Il est bien entendu que le fond de la coupelle n'est pas obligatoirement plan, mais peut également présenter les géométries ci-dessus.By cup, we also mean a frustoconical, hemispherical or truncpyramidal element. It is understood that the bottom of the cup is not necessarily plane, but may also have the above geometries.

Le corps principal de la capsule, à savoir la coupelle, de forme tronconique et de nature semi-rigide, peut être constitué d'aluminium d'une épaisseur de 20 à 100 µm, de plastique pur ou multi-couches avec éventuellement une couche barrière à l'oxygène telle que l'EVOH ou le PVDC, d'un film multi-couches tel que carton, aluminium, plastique ou carton, plastique avec éventuellement une couche barrière à l'oxygène telle que l'EVOH ou le PVDC.The main body of the capsule, namely the cup, of frustoconical shape and of semi-rigid nature, can be made of aluminum with a thickness of 20 to 100 µm, of pure plastic or multi-layers with possibly a barrier layer with oxygen such as EVOH or PVDC, a multi-layer film such as cardboard, aluminum, plastic or cardboard, plastic with possibly an oxygen barrier layer such as EVOH or PVDC.

L'opercule de la capsule, de nature souple, peut être constitué d'aluminium d'une épaisseur de 15 à 60 µm, ou d'un film multi-couches comprenant, soit du papier de 20 à 60 g/m2, du plastique tel que le polyéthylène d'une épaisseur de 20 à 60 µm et de l'aluminium d'une épaisseur de 5 à 20 µm, soit de l'EVOH ou du PVDC d'une épaisseur de 5 à 30 µm et du plastique (PP, PE, PA) de 20 à 100 µm, soit du PET (5 à 30 µm) et du plastique (PP, PE) de 20 à 100 µm, soit du PET métallisé ou muni d'une couche haute barrière telle que SiO2. La combinaison multi-couches - papier aluminium peut également être envisagée.The capsule lid, of a flexible nature, can be made of aluminum with a thickness of 15 to 60 μm, or of a multi-layer film comprising, either paper of 20 at 60 g / m2, plastic such as polyethylene with a thickness of 20 to 60 µm and aluminum with a thickness of 5 to 20 µm, either EVOH or PVDC with a thickness of 5 at 30 µm and plastic (PP, PE, PA) from 20 to 100 µm, or PET (5 to 30 µm) and plastic (PP, PE) from 20 to 100 µm, either PET metallized or provided with a high barrier layer such as SiO2. The multi-layer combination - aluminum foil can also be considered.

Parmi ces matières, l'aluminium se déchire le plus facilement et le plus nettement en employant un film multi-couches, la présence des fibres de papier et l'étirement de la couche plastique permet de constituer un treillis à l'emplacement des déchirures, ce qui est favorable pour maintenir l'intégrité du fond de la capsule et réduire la dispersion du marc tout en assurant une extraction homogène du lit de café.Among these materials, aluminum tears most easily and most clearly by using a multi-layer film, the presence of paper fibers and the stretching of the plastic layer makes it possible to form a trellis at the location of the tears, which is favorable for maintaining the integrity of the bottom of the capsule and reducing the dispersion of the grounds while ensuring a homogeneous extraction from the coffee bed.

Pour éviter toute dispersion du marc sur la grille d'écoulement, on prévoit une couche supplémentaire à base de papier filtre ou de fibres tissées ou non tissées à base de PET ou de PP. Selon une configuration, cette couche peut être intercalée entre le corps de la capsule et l'opercule et liée ou soudée à ces deux éléments. Cette matière peut être d'une densité de 20 à 50 g/m2. Selon une autre configuration de la capsule, la couche de papier filtre ou de fibres tissées ou on tissées peut être placée à l'extérieur de la capsule et liée ou soudée à l'opercule.To avoid any dispersion of the grounds on the drain grid, an additional layer is provided, based on filter paper or woven or non-woven fibers based on PET or PP. According to a configuration, this layer can be interposed between the body of the capsule and the cover and bonded or welded to these two elements. This material can have a density of 20 to 50 g / m 2 . According to another configuration of the capsule, the layer of filter paper or woven or woven fibers can be placed outside the capsule and bonded or welded to the cover.

La cartouche selon l'invention peut être de taille variable suivant le volume de café que l'on souhaite préparer. La dose de café contenue peut varier entre 5 et 20 g, le diamètre de la cartouche est compris entre 2,5 et 6 cm et l'épaisseur du lit de café entre 10 et 25 mm.The cartridge according to the invention can be of variable size according to the volume of coffee that one wishes to prepare. The dose of coffee contained can vary between 5 and 20 g, the diameter of the cartridge is between 2.5 and 6 cm and the thickness of the coffee bed between 10 and 25 mm.

La suite de la description est faite en référence aux dessins sur lesquels:

  • Fig. 1 est une représentation schématique de la cartouche selon l'invention;
  • Fig. 2 est une représentation schématique selon une seconde forme de réalisation et
  • Fig. 3 est une représentation schématique selon une troisième forme de réalisation.
The following description is made with reference to the drawings in which:
  • Fig. 1 is a schematic representation of the cartridge according to the invention;
  • Fig. 2 is a schematic representation according to a second embodiment and
  • Fig. 3 is a schematic representation according to a third embodiment.

La cartouche (1) comporte une coupelle (2) avec un fond (5) et une paroi latérale de forme tronconique (6). La coupelle est en aluminium d'épaisseur 50 µm. La cartouche contient du café torréfié (3) et elle est fermée par un opercule (4) en composite aluminium/papier. Cet opercule est soudé sur le pourtour (7) du rebord de la coupelle.The cartridge (1) comprises a cup (2) with a bottom (5) and a frustoconical side wall (6). The cup is made of 50 µm thick aluminum. The cartridge contains roasted coffee (3) and it is closed by a cover (4) made of aluminum / paper composite. This cover is welded to the periphery (7) of the rim of the cup.

La cartouche (8) de la Fig. 2 comporte une coupelle (2) identique à celle de la Fig. 1, sauf que le rebord (9) de la coupelle est plus large permettant ainsi un rabattement, c'est-à-dire un sertissage sur le pourtour de l'opercule (4). Le matériau utilisé est le même que celui de la Fig. 1.The cartridge (8) of FIG. 2 comprises a cup (2) identical to that of FIG. 1, except that the rim (9) of the cup is wider thereby allowing it to be folded down, that is to say crimping around the periphery of the cover (4). The material used is the same as that of FIG. 1.

La cartouche (30) de la Fig. 3 comporte sur l'opercule (4) un papier filtre (31) soudé contre le pourtour dudit opercule et le pourtour de la coupelle (2).The cartridge (30) of FIG. 3 comprises on the cover (4) a filter paper (31) welded against the periphery of said cover and the periphery of the cup (2).

La cartouche selon l'invention est de type s'ouvrant sous l'effet de la pression mais est de conception et de fabrication plus simple et plus économique que celle de la technique antérieure.The cartridge according to the invention is of the type which opens under the effect of pressure but is of simpler and more economical design and manufacture than that of the prior art.

Explication des abréviations:Explanation of abbreviations:

PVDCPVDC
= Polychlorure de vinylidène= Polyvinylidene chloride
EVOHEVOH
= Copolymère d'éthylène et d'alcool de vinyle= Copolymer of ethylene and vinyl alcohol
PPPP
= Polypropylène= Polypropylene
PEPE
= Polyéthylène= Polyethylene
PETFART
= Polyester= Polyester
PAPA
= Polyamide= Polyamide

Claims (6)

  1. Sealed cartridge, designed to be extracted under pressure, containing a substance for the preparation of a beverage chosen from roasted ground coffee, tea, soluble coffee, a mixture of ground coffee and soluble coffee, a chocolate product or any other dehydrated edible substance, comprising a cup with a base and a substantially frustoconical lateral wall and a circular lip larger in diameter than the base, and a cover welded to the periphery of the lip of the cup, characterized in that the cover consists of a flexible material impermeable to oxygen, chosen from the group consisting of aluminium, an aluminium/plastic composite, an aluminium/plastic/paper composite, pure plastic or multi-layer plastic, in that it does not comprise a filter or a weakened zone and in that the cover or the base is intended to be torn solely under the effect of the pressure of the extraction fluid at the start of extraction.
  2. Cartridge according to claim 1, characterized in that the cover is crimped onto the lip of the cup.
  3. Cartridge according to one of claims 1 or 2, characterized in that the cup is made of a material chosen from 20 to 100 µm thick aluminium, a pure plastic or a multi-layer plastic, a cardboard/aluminium/plastic composite or a cardboard/plastic composite.
  4. Cartridge according to one of claims 1 to 3, characterized in that the cup is made of a material chosen from 15 to 60 µm thick aluminium and a laminate comprising, either 20 to 60 g/m2 paper, 20 to 60 µm thick plastic and 5 to 20 µm thick aluminium, or 5 to 30 µm thick EVOH or PVDC and 20 to 100 µm thick plastic (PP, PE or PA), or PET (5 to 30 µm) and 20 to 100 µm plastic (PP, PE), or metallized PET or PET provided with a high performance barrier layer such as SiO2.
  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 thickness of between 10 and 25 mm.
  6. Cartridge according to one of claims 1 to 5, characterized in that it is provided above or below the cover with an additional layer based on filter paper or woven or non-woven fibres based on PET or PP.
EP92107536A 1991-05-10 1992-05-04 Closed cartridge for making a beverage Expired - Lifetime EP0512468B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP92107536A EP0512468B1 (en) 1991-05-10 1992-05-04 Closed cartridge for making a beverage

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
EP91107650A EP0512148A1 (en) 1991-05-10 1991-05-10 Enclosed cartridge for making a beverage
EP91107650 1991-05-10
EP91111317 1991-07-08
EP91111317 1991-07-08
EP92107536A EP0512468B1 (en) 1991-05-10 1992-05-04 Closed cartridge for making a beverage

Publications (2)

Publication Number Publication Date
EP0512468A1 EP0512468A1 (en) 1992-11-11
EP0512468B1 true EP0512468B1 (en) 1997-01-29

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EP92107536A Expired - Lifetime EP0512468B1 (en) 1991-05-10 1992-05-04 Closed cartridge for making a beverage

Country Status (15)

Country Link
EP (1) EP0512468B1 (en)
JP (1) JP2763987B2 (en)
KR (1) KR0143975B1 (en)
AT (1) ATE148419T1 (en)
AU (1) AU1505192A (en)
CA (1) CA2067515C (en)
DE (1) DE69217113T2 (en)
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CA2067515C (en) 1999-02-09
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DE69217113D1 (en) 1997-03-13
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FI922065A (en) 1992-11-11
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DE69217113T2 (en) 1997-05-15
AU1505192A (en) 1992-11-12
GR3022936T3 (en) 1997-06-30
DK0512468T3 (en) 1997-07-07
JP2763987B2 (en) 1998-06-11
KR0143975B1 (en) 1998-08-01
FI922065A0 (en) 1992-05-07

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