EP 3096013 A1 20161123 - DIAPHRAGM PUMP
Title (en)
DIAPHRAGM PUMP
Title (de)
MEMBRANPUMPE
Title (fr)
POMPE A DIAPHRAGME
Publication
Application
Priority
- EP 16174972 A 20030516
- EP 03738931 A 20030516
- US 0315699 W 20030516
Abstract (en)
Diaphragm pump (110) for receiving drive power from a motor, said pump comprising: a housing (112, 137) having a pumping chamber (106) adapted to contain fluid to be pumped, a transfer chamber (44) adapted to contain hydraulic fluid, and a hydraulic fluid reservoir; a diaphragm (34) having a transfer chamber side and a pumping chamber side, said diaphragm (34) being disposed between said pumping chamber (106) and said transfer chamber (44) and adapted for reciprocation toward and away from said pumping chamber (106); a piston (46) in a cylinder (120) in said housing (112, 137) adapted for reciprocation between a power stroke and a suction stroke, said cylinder (120) forming a portion of said transfer chamber (44), said piston (46) moving longitudinally in said cylinder (120) with said cylinder (120) having a surface with an upper portion (118) when said pump (110) is oriented so that said cylinder (120) is generally horizontal; a fluid communication path for the hydraulic fluid between said hydraulic fluid reservoir and said transfer chamber (44) and a valve in said path for selectively allowing flow of hydraulic fluid from said hydraulic fluid reservoir to said transfer chamber (44) when said valve is open.
IPC 8 full level
F04B 43/073 (2006.01); F04B 43/067 (2006.01); F04B 53/06 (2006.01); G01M 99/00 (2011.01)
CPC (source: EP US)
F04B 43/067 (2013.01 - EP US); F04B 43/073 (2013.01 - EP US); F04B 53/06 (2013.01 - EP)
Citation (applicant)
- US 6554578 B1 20030429 - SIEGEL NORBERT [DE]
- US 4116590 A 19780926 - PRESTWICH JOHN RICHARD
- US 3775030 A 19731127 - WANNER W
Citation (search report)
- [XI] WO 9111616 A1 19910808 - WANNER ENGINEERING [US]
- [XI] US 3107624 A 19631022 - WILLIAMS WILLIAM A
- [XI] US 5246351 A 19930921 - HORN WALDEMAR [DE], et al
- [A] US 6554578 B1 20030429 - SIEGEL NORBERT [DE]
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR
DOCDB simple family (publication)
WO 2004106884 A1 20041209; AU 2003245292 A1 20050121; BR 0318302 A 20060711; BR PI0318302 B1 20170328; CN 100538314 C 20090909; CN 1781015 A 20060531; DK 1625377 T3 20170522; EP 1625377 A1 20060215; EP 1625377 A4 20111123; EP 1625377 B1 20170329; EP 3096013 A1 20161123; EP 3096013 B1 20190904; ES 2630179 T3 20170818; JP 2006526099 A 20061116; JP 4530988 B2 20100825
DOCDB simple family (application)
US 0315699 W 20030516; AU 2003245292 A 20030516; BR 0318302 A 20030516; CN 03826452 A 20030516; DK 03738931 T 20030516; EP 03738931 A 20030516; EP 16174972 A 20030516; ES 03738931 T 20030516; JP 2005500402 A 20030516