Patent Number: 6,253,664

Title: Brewing unit for automatic beverage dispensers

Abstract: A brewing unit comprises a body containing a brewing chamber with vertical axis capable of receiving a pressing plunger mounted mobile along the vertical axis, and a hydraulic jack whereof the piston rod is connected to the pressing plunger and can pass from an inoperative position to a working position, by the effect of a liquid under pressure. The hydraulic jack is a single-acting actuator, the piston rod being returned in inoperative position by compressible and extensible elements. The invention is applicable to espresso coffee brewing machines.

Inventors: Giannelli; Giuseppe (Olgiate, IT)

Assignee: Moulinex S.A.

International Classification: A47J 31/24 (20060101); A47J 31/36 (20060101); A47J 31/40 (20060101); A47J 031/40 ()

Expiration Date: 07/03/2018