Title:
Piston pump
Document Type and Number:
WIPO Patent Application WO1997016643
Kind Code:
A3
Abstract:
A pump comprising a housing including first and second housing sections and a gasket between the first and second housing sections. The housing has a first pumping chamber, an inlet, an inlet passage in the housing leading from the inlet to the pumping chamber, an outlet and an outlet passage in the housing leading from the pumping chamber to the outlet. A pumping member is movable in the pumping chamber to pump fluid through the pump. Inlet and outlet check valves are provided in the inlet and outlet passages, respectively with each of the check valves including a movable valve element. The outlet check valve includes an outlet valve seat and a movable outlet valve element secured to the gasket at at least two spaced apart regions.
Inventors:
POPESCU NICOLAE G (US)
TAYLOR-MCCUNE CHRISTOPHER J (US)
GEORGE MICHAEL A (US)
TAYLOR-MCCUNE CHRISTOPHER J (US)
GEORGE MICHAEL A (US)
Application Number:
PCT/US1996/017642
Publication Date:
September 12, 1997
Filing Date:
October 31, 1996
Export Citation:
Assignee:
SHURFLO PUMP MFG CO (US)
International Classes:
F04B43/02; F04B49/035; F04B53/10; (IPC1-7): F04B53/10; F04B43/02
Foreign References:
| DE509224C | 1930-10-06 | |||
| EP0093674A1 | 1983-11-09 | |||
| US3314600A | 1967-04-18 | |||
| US5466133A | 1995-11-14 | |||
| US4545735A | 1985-10-08 | |||
| DE1942548A1 | 1970-10-29 | |||
| US5079996A | 1992-01-14 |
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