US Patent 7350456 Device for producing beverage by infusion

A device for the production of beverages such as coffee by infusion of a product contained in a tablet (2) includes an infusion chamber (1) adapted to receive a tablet (2) having two portions (3, 4) shaped to move toward or away from each other to close or open the infusion chamber (1), in which device only one of the portions has mobility and rotation so as to place the tablet (2) in abutment in the portion and that the portion (3) movable in rotation has mobility in translation to open or close the infusion chamber (1). The device includes additional elements for holding closed the two portions of the infusion chamber (1).