Wafer check valves

Details Wafer check valves Wafer check valves

1985-05-02

1987-09-22

Cohan, Alan

Fluid handling

Line condition change responsive valves

Direct response valves

1375272, F16K 1503

Patent

active

046948538

ABSTRACT:
A wafer check valve having an annular housing, closing flaps effective to close a passage through the housing and spring urged to a passage closing position, the flaps being mounted on one or more hinge pins, the or each hinge pin extending at each end into a bore in an insert, the inserts being received in respective slots in the body and including means retaining the inserts in the slots without movement.

REFERENCES:
patent: 3074427 (1963-01-01), Wheeler, Jr.
patent: 3208472 (1965-09-01), Scaramucci
patent: 3678958 (1972-07-01), Satterwhite et al.
patent: 3831628 (1974-08-01), Kintner et al.
patent: 3933173 (1976-01-01), Kajita
patent: 4201241 (1980-05-01), Schertler
patent: 4257444 (1981-03-01), Ogle, Jr. et al.
patent: 4257451 (1981-03-01), Paton
patent: 4321944 (1982-03-01), Schutzer

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