Patent ID: 7219599
Filing Date: 2007-05-22
Classification: A47J

Abstract:
1. A coffee machine, comprising: a brewing means for preparing at least a first coffee beverage at a first brewing pressure and at least a second coffee beverage at a second brewing pressure, the second brewing pressure being higher than the first brewing pressure, the brewing means being connected via an outlet line to a tap opening; a throttle means which is provided in the outlet line and which is adjustable between a first flow cross-section and a second flow cross-section, the first flow cross-section being greater than the second flow cross-section, and the throttle means being adjustable by the action of the brewing pressure, wherein the throttle means includes: a piston with a piston surface and a sealing surface, the piston surface adapted to be actuated by the brewing pressure for moving the piston in one direction and the sealing surface adapted to close the larger flow cross-section, and a motion means for moving the piston in a direction that is opposite to the one direction.