Sealed cartridge for making a beverage

Details Sealed cartridge for making a beverage Sealed cartridge for making a beverage

B - Operations, Transporting

65

D

B65D 81/34 (2006.01) A47J 31/40 (2006.01) B65D 81/00 (2006.01)

Patent

CA 2362118

The invention relates to a sealed cartridge, provided to be extracted under pressure, containing a substance (15) for preparing a beverage, comprising a dish (9) with a bottom (10) and a side wall (11), having substantially the shape of a frustum of a cone, and a circular edge with a diameter greater than the bottom, and a cover (12) welded to the periphery of the edge of the dish, in which the cover (12) consists of a flexible material which is imperme-able to oxygen, chosen from the group consisting of aluminium, an aluminium/plastic composite, an alu-minium/plastic/paper composite, pure or multi-layer plastic, the said cartridge not comprising a filter or a weakening zone and the cover being intended to be torn only through the effect of the force of the extraction fluid when extraction starts, the said car-tridge comprising, in the dish at the level of the bottom, a means (13) guaranteeing the seal when it is open.

La présente invention concerne une cartouche étanche, à extraction sous pression, contenant une substance (15) destinée à préparer une boisson, comprenant un récipient (9) comportant un fonds (10), une paroi latérale (11), présentant sensiblement la forme d'un tronc de cône, un bord circulaire de diamètre supérieur à celui du fond, et un couvercle (12) soudé à la périphérie de la bordure du récipient, dans lequel le couvercle (12) est constitué d'un matériau souple imperméable à l'oxygène, choisi dans le groupe comprenant l'aluminium, un composite aluminium/plastique, un composite aluminium/plastique/papier, du plastic pur ou à couches multiples, ladite cartouche ne comprenant pas de filtre ou une zone d'affaiblissement et le couvercle étant conçu pour être déchiré sous la seule force du fluide d'extraction lorsque celle-ci débute, ladite cartouche comprenant, dans le récipient au niveau du fond, un moyen (13) garantissant l'étanchéité lorsqu'il est ouvert.

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