Extraction system for the preparation of a beverage from a...

Details Extraction system for the preparation of a beverage from a... Extraction system for the preparation of a beverage from a...

A - Human Necessities

47

J

A47J 31/06 (2006.01) A47J 31/40 (2006.01)

Patent

CA 2663945

Extraction system (1) for preparing a beverage from a cartridge using a fluid injected under pressure into the said cartridge and comprising a cartridge (3) and an extraction device (2) intended to accept the said cartridge; the device comprising an injection cage (4) and a cartridge support (5); the said injection cage (4) and the said cartridge support being arranged in such a way as to be moved relative to one another in the pre-injection mode of closure around the cartridge by a closure device. The injection cage (5, 48) comprises a base (19) and a closure piston unit (20) which is mounted such that it can be moved axially with respect to the said base. The closure piston unit (20) can be moved relative to the base (19) by the pressure exerted by the fluid upon injection.

L'invention concerne un système d'extraction (1) d'une cartouche pour la préparation d'une boisson, ce système mettant en oeuvre un fluide injecté sous pression dans la cartouche et comprenant une cartouche (3) et un dispositif d'extraction (2) destiné à accueillir la cartouche. Le dispositif comprend un boîtier d'injection (4) et un support (5) pour la cartouche. Le boîtier d'injection (4) et le support de cartouche sont disposés de façon à être déplacés l'un par rapport à l'autre en mode pré-injection de fermeture autour de la cartouche par un dispositif de fermeture. Le boîtier d'injection (5, 48) comprend une base (19) et une unité de piston (20) de fermeture qui est montée de façon à pouvoir être déplacée axialement par rapport à la base. L'unité de piston (20) de fermeture peut être déplacée par rapport à la base (19) grâce à la pression exercée par le fluide lors de l'injection.

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