Patent ID: 8820217
Filing Date: 2014-09-02
Classification: A47J

Abstract:
1. A brewing unit ( 1 ) for a beverage preparing machine comprising: a brewing chamber ( 2 ), a first piston ( 5 ) providing a mobile wall ( 3 ) of said chamber, said mobile wall ( 3 ) having an outlet ( 12 ) and a spout ( 17 ) for delivering the beverage from said brewing chamber ( 2 ), and a valve assembly ( 13 ), and means ( 6 ) for supporting said piston ( 5 ) and said valve assembly ( 13 ), said supporting means ( 6 ) being movable with said first piston ( 5 ) with respect to said brewing chamber ( 2 ) and being also movable with said valve assembly ( 13 ) with respect to said first piston ( 5 ), for actuating said valve assembly ( 13 ) to respectively connect said spout ( 17 ) to said brewing chamber ( 2 ) or to the atmosphere, according to the position of said supporting means ( 6 ).