Check valve assembly with actuator

Details Check valve assembly with actuator Check valve assembly with actuator

1981-04-13

1982-10-19

Adee, John

Liquid purification or separation

Flow, fluid pressure or material level, responsive

Check valve

210167, 137535, B01P 3502

Patent

active

043549314

ABSTRACT:
A check valve assembly regulating the fluid flow between the fluid reservoir and filter cartridge chamber is actuated by a valve actuating member movable through and controllable exteriorly of a filter system housing without compromising the housing leak integrity. The actuating member may perform another function of a drain plug for the filter chamber, so that upon removal of the member the check valve assembly will be closed and the chamber fluid drained through a drain plug opening without loss of the reservoir fluid.

REFERENCES:
patent: 922657 (1909-05-01), Worsey
patent: 1220231 (1917-03-01), Jack
patent: 1720380 (1929-07-01), Schulze
patent: 1782702 (1930-11-01), Wheeler
patent: 2214459 (1940-09-01), Gottlieb
patent: 2264136 (1941-11-01), Karlberg
patent: 2331119 (1943-10-01), Gouldbourn et al.
patent: 2344486 (1944-03-01), Arvins et al.
patent: 3273715 (1966-09-01), Rosaen
patent: 3363762 (1968-01-01), Ensign
patent: 3507391 (1970-04-01), Rosaen

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