Method for preparing a beverage from a capsule and device...

A - Human Necessities – 47 – J

Patent

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Details

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

Patent

CA 2531544

Method for preparing a beverage or liquid food from a capsule (1) containing a material (2) with a substance to be extracted, wherein said capsule has a highly resiliently or permanently deformable flexible diaphragm (17). The method comprises the steps of forming a plurality of holes (26) distributed over the flexible diaphragm (17) and spraying water onto the flexible diaphragm (17) so as to urge it towards the material (2) inside the capsule (1) and force the water into the capsule (1) through said holes. The size of the holes formed by the piercing spikes (25) is dependent on the filling level or the compactness of the material (2) inside the capsule, thereby influencing the hydraulic pressure differential (DELTAP) between the two sides (17a, 17b) of the flexible diaphragm (17) in order to achieve automatically controlled compression of the material (2) in the capsule (1).

Procédé de préparation d'une boisson ou d'un aliment liquide à partir d'une capsule (1) contenant un produit (2) avec une substance à extraire, la capsule ayant une membrane souple (17) ayant une forte capacité de déformation élastique ou permanente, comprenant les étapes de perforation d'une pluralité de trous (26) répartis sur la membrane souple (17) et d'injection d'eau sur la membrane souple (17) de manière à ce qu'elle se déforme vers le produit (2) à l'intérieur de la capsule (1) et que l'eau entre dans la capsule (1) par lesdits trous. La taille des trous perforés par les pointes de perforation (25) est contrôlée par le niveau de remplissage ou de la compacité du produit (2) à l'intérieur de la capsule de sorte à influencer la différence de pression hydraulique DELTAP entre les deux côtés (17a, 17b) de la membrane souple (17) pour obtenir une autorégulation de la compression du produit (2) contenu dans la capsule (1).

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