EP 1458977 B1 20050420 - PERISTALTIC MICROPUMP
Title (en)
PERISTALTIC MICROPUMP
Title (de)
PERISTALTISCHE MIKROPUMPE
Title (fr)
MICROPOMPE PERISTALTIQUE
Publication
Application
Priority
- DE 10238600 A 20020822
- EP 0309352 W 20030822
Abstract (en)
[origin: WO2004018875A1] The invention concerns a peristaltic micropump comprising a first membrane zone (12) provided with a first piezoelectric actuator (22) for actuating said first membrane zone (12), a second membrane zone (14) provided with a second piezoelectric actuator (24) for actuating said second membrane zone (14), and a third membrane zone (16) provided with a third piezoelectric actuator (26) for actuating said third membrane zone (16). A pump body (30) forms, with the first membrane zone (12), one first valve (62) whereof the passage orifice (32) is open when the first membrane zone (12) is not actuated and is closed when the first membrane zone (12) is operating. The pump body (30) forms, with the second membrane zone (14), a pumping cavity (42) whereof the volume decreases when the second membrane zone (14) is operating. Said pump body (30) forms, with the third membrane zone (16), a second valve (64) whereof the passage orifice (34) is open when the third membrane zone (16) is not actuated and is closed when the third membrane zone (16) is operating. The first and second valves (62, 64) are in fluid connection with the pumping cavity (42).
IPC 1-7
IPC 8 full level
F04B 43/02 (2006.01); F04B 43/04 (2006.01)
CPC (source: EP US)
F04B 43/046 (2013.01 - EP US); F04B 43/14 (2013.01 - EP US)
Citation (examination)
- DE 19719862 A1 19981119 - FRAUNHOFER GES FORSCHUNG [DE]
- DE 19637928 A1 19970814 - FRAUNHOFER GES FORSCHUNG [DE]
- EP 0949418 B1 20041201 - SEIKO INSTR INC [JP]
- WO 9611339 A1 19960418 - WESTINGHOUSE ELECTRIC CORP [US]
- US 6247908 B1 20010619 - SHINOHARA JUN [JP], et al
- JP H02126860 A 19900515 - OLYMPUS OPTICAL CO
- JP H0227073 A 19900129 - SHIROKI CORP
- JP H0242184 A 19900213 - NEC CORP
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
DE 10238600 A1 20040304; AU 2003255478 A1 20040311; CN 100389263 C 20080521; CN 1675468 A 20050928; DE 50300465 D1 20050525; EP 1458977 A1 20040922; EP 1458977 B1 20050420; EP 1458977 B2 20081112; JP 2005536675 A 20051202; JP 4531563 B2 20100825; US 2005123420 A1 20050609; US 7104768 B2 20060912; WO 2004018875 A1 20040304
DOCDB simple family (application)
DE 10238600 A 20020822; AU 2003255478 A 20030822; CN 03819430 A 20030822; DE 50300465 T 20030822; EP 0309352 W 20030822; EP 03792417 A 20030822; JP 2004530251 A 20030822; US 96054904 A 20041006