EP 0826109 B1 19981209 - FLUID PUMP WITHOUT NON-RETURN VALVES
Title (en)
FLUID PUMP WITHOUT NON-RETURN VALVES
Title (de)
RÜCKSCHLAGVENTILLOSE FLUIDPUMPE
Title (fr)
POMPE A FLUIDE DEPOURVUE DE SOUPAPE ANTI-RETOUR
Publication
Application
Priority
- DE 19534378 A 19950915
- DE 19624271 A 19960618
- EP 9603863 W 19960903
Abstract (en)
[origin: WO9710435A2] A fluid pump comprising a pump housing, a displacer and an elastic membrane. The displacer can be placed in a first and second end position by means of a drive unit. The displacer and the pump housing are so laid out that there is between them a pump chamber through which fluid can flow via a first and second opening with an inlet and an outlet. The elastic membrane is adjacent to the pump chamber. The displacer closes the first opening when in the first end position and leaves it open when in the second end position.
IPC 1-7
IPC 8 full level
F04B 7/04 (2006.01); F04B 19/00 (2006.01); F04B 43/00 (2006.01); F04B 43/04 (2006.01)
CPC (source: EP US)
F04B 7/04 (2013.01 - EP US); F04B 19/006 (2013.01 - EP US); F04B 43/0027 (2013.01 - EP US); F04B 43/043 (2013.01 - EP US)
Designated contracting state (EPC)
AT CH DE GB LI
DOCDB simple family (publication)
WO 9710435 A2 19970320; WO 9710435 A3 19970509; AT E174406 T1 19981215; DE 59600973 D1 19990121; EP 0826109 A2 19980304; EP 0826109 B1 19981209; JP 3035854 B2 20000424; JP H10511165 A 19981027; US 6227824 B1 20010508
DOCDB simple family (application)
EP 9603863 W 19960903; AT 96930157 T 19960903; DE 59600973 T 19960903; EP 96930157 A 19960903; JP 51161497 A 19960903; US 4323698 A 19980313