EP 2244617 A1 20101103 - BREWING UNIT FOR A COFFEE MAKER
Title (en)
BREWING UNIT FOR A COFFEE MAKER
Title (de)
BRÜHGRUPPE FÜR EINE KAFFEEMASCHINE
Title (fr)
GROUPE D'INFUSION POUR MACHINE À CAFÉ
Publication
Application
Priority
- CH 2009000051 W 20090209
- CH 2192008 A 20080217
Abstract (en)
[origin: WO2009100552A1] The invention relates to a brewing unit (1) for a coffee maker for brewing a ground coffee portion (10), comprising a brewing unit housing (2), an upper plunger (3) firmly connected to the brewing unit housing (2), a holder (4) for receiving the ground coffee portion (10), said holder being open at the top and closed at the bottom by a base (7), and a brewing plunger (6) for compressing the ground coffee portion (10) in a brewing chamber (5). The holder (4) and the brewing plunger (6) are disposed movably and pivotally in the brewing unit housing (2). Mechanical operating elements are provided in the brewing unit housing (2) for raising, lowering, and pivoting the holder (4) and the plunger (3). The brewing plunger (6) is hydraulically guided displaceably in the holder (4) relative to the holder (4). Between the brewing plunger bottom side (14) and the base (7) of the holder (4) a lower chamber space (13) is provided, into which the hot water supply (8) opens. The brewing plunger (3) has a passage (11) for the hot water, said passage being provided with a valve (12) and connecting the lower chamber space (13) to the brewing chamber (5). When supplying pressurized hot water via the hot water supply (8) in the lower chamber space (13), overpressure is created there, by which the brewing plunger (6) can be hydraulically pressed in the direction of the brewing chamber (5).
IPC 8 full level
A47J 31/36 (2006.01)
CPC (source: EP US)
A47J 31/3609 (2013.01 - EP US)
Citation (search report)
See references of WO 2009100552A1
Citation (examination)
DE 202004018776 U1 20050210 - EUGSTER FRISMAG AG ROMANSHORN [CH]
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK TR
Designated extension state (EPC)
AL BA RS
DOCDB simple family (publication)
WO 2009100552 A1 20090820; CN 101951821 A 20110119; CN 101951821 B 20140122; EP 2244617 A1 20101103; US 2011041697 A1 20110224; US 8770092 B2 20140708
DOCDB simple family (application)
CH 2009000051 W 20090209; CN 200980105478 A 20090209; EP 09710750 A 20090209; US 86783809 A 20090209