Stabilizing check valve

Details Stabilizing check valve Stabilizing check valve

1976-11-16

1978-12-12

Cline, William R.

Fluid handling

Line condition change responsive valves

Direct response valves

13754321, 13751629, 251358, F16K 1506

Patent

active

041291441

ABSTRACT:
A check valve comprising a housing having an annular abutment therein, a spring pressed guide in the abutment, an elastomeric disc on the guide, a conical head with an annular tapering groove facing the disc and a flat apex facing downstream, said guide having fluid passages open upon downstream pressure and the conical head and disc closing and stabilizing the valve upon lack of pressure or reverse pressure.

REFERENCES:
patent: 1274680 (1918-08-01), Calvert
patent: 1774690 (1930-09-01), Willoughby
patent: 1943670 (1934-01-01), Hewitt
patent: 2845945 (1958-08-01), Mancusi, Jr.
patent: 2870576 (1959-01-01), Parkel
patent: 3001546 (1961-09-01), Salisbury
patent: 3008485 (1961-11-01), Johnson et al.
patent: 3057372 (1962-10-01), Sutton et al.
patent: 3294116 (1966-12-01), Tremeau
patent: 3335751 (1967-08-01), Davis, Jr.
patent: 3540472 (1970-11-01), Brady et al.

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