Sealed capsule for the preparation of a beverage, in...

Details Sealed capsule for the preparation of a beverage, in... Sealed capsule for the preparation of a beverage, in...

B - Operations, Transporting

65

D

B65D 85/804 (2006.01)

Patent

CA 2660119

The capsule (1) is sealed without an internal filter. It comprises a cup-shaped body (2) with an outwardly projecting flange (2a), and a flexible lid (3) welded to the flange (2a) of the cup-shaped body (2) so as to define with the latter a sealed chamber (4) which is impermeable to oxygen and moisture and contains a quantity of granular material (5). The granular material (5) is first compressed inside the chamber (4) in a direction perpendicular to the plane containing the flange (2a), with a compressive load preferably of between 2 and 50 Kg per cm2 of the average cross-sectional area of the chamber (4), so as to form a compact tablet (5) of said material. A vacuum is formed inside the chamber (4) to a degree such that the lid (3) adheres to the upper surface of the tablet (5).

L'invention concerne une capsule (1) scellée sans filtre interne. Cette capsule comprend un corps en forme de coupelle (2) ayant un rebord (2a) saillant vers l'extérieur, et un couvercle souple (3) soudé sur le rebord (2a) du corps en forme de coupelle (2), de façon à former dans celui-ci une chambre scellée (4) qui est imperméable à l'oxygène et à l'humidité, et qui contient une certaine quantité de matière granulée (5). La matière granulée (5) est tout d'abord comprimée à l'intérieur de la chambre (4), dans une direction perpendiculaire au plan contenant le rebord (2a), avec une charge compressive comprise de préférence entre 2 et 50 kg par cm2 de l'aire en section transversale moyenne de la chambre (4), de façon à former une pastille compacte (5) de ladite matière. Un vide est formé à l'intérieur de la chambre (4), à un degré tel que le couvercle (3) adhère à la surface supérieure de la pastille (5).

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