Machine for preparing coffee

A - Human Necessities – 47 – J

Patent

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Details

A47J 31/38 (2006.01)

Patent

CA 2756253

A Machine for preparing coffee comprising a infusion chamber to house at least a coffee dose, and means for feeding pressurized water to said infusion chamber (8), said means comprising a cylinder (2) and plunger (3) assembly, said plunger (3) defining inside the cylinder (2) a chamber (6) to house a preset quantity of water, and said plunger (3) being able to accumulate, in an active position, potential energy capable of being transmitted as a pressure to the water of said chamber (6), when said plunger (3) contacts, in said active position, with the water of said chamber (6). It is characterized in that said infusion chamber (8) is placed adjacent below the water chamber (6) of said cylinder (2), both chambers including at least one hole (10) through which, once opened, passes the pressurized water to said infusion chamber (8), said plunger (3) moving back to the rest position inside said chamber (6) as pressurized water is fed through said hole (10).

L'invention porte sur une machine pour préparer du café, laquelle machine comprend une chambre d'infusion pour renfermer au moins une dose de café, et des moyens pour distribuer de l'eau sous pression à ladite chambre d'infusion (8), lesdits moyens comprenant un ensemble vérin (2) et piston (3), ledit piston (3) définissant à l'intérieur du vérin (2) une chambre (6) destinée à renfermer une quantité d'eau prédéterminée, et ledit piston (3) étant apte à accumuler, dans une position active, une énergie potentielle apte à être transmise sous la forme d'une pression à l'eau de ladite chambre (6), lorsque ledit piston (3) vient en contact, dans ladite position active, avec l'eau de ladite chambre (6). La machine est caractérisée en ce que ladite chambre d'infusion (8) est disposée adjacente au-dessus de la chambre d'eau (6) dudit vérin (2), les deux chambres comprenant au moins un trou (10) à travers lequel, une fois que celui-ci est ouvert, l'eau sous pression passe dans ladite chambre d'infusion (8), ledit piston (3) revenant vers la position de repos à l'intérieur de ladite chambre (6) lorsque de l'eau sous pression est distribuée à travers ledit trou (10).

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