Check valve

Details Check valve Check valve

1973-11-14

1976-01-27

Cline, William R.

Fluid handling

Line condition change responsive valves

Direct response valves

F16K 1503

Patent

active

039346080

ABSTRACT:
A check valve comprising a sectional valve body adapted to be interposed in a flow line, a valve seat provided in one body portion, a pivotal clapper member movable toward and away from said valve seat to provide alternate open and closed positions for the valve and hanger means provided in the body including means for urging the clapper toward a normal closed position against the valve seat.

REFERENCES:
patent: 345420 (1886-07-01), Eskholme
patent: 608450 (1898-08-01), Godfrey
patent: 846317 (1906-03-01), Kiddle
patent: 849466 (1907-04-01), Donaldson, Jr.
patent: 2282532 (1942-05-01), Shenk
patent: 2918934 (1959-12-01), Wheatley
patent: 2928416 (1960-03-01), Balhouse
patent: 2930400 (1960-03-01), Wheatley
patent: 3075547 (1963-01-01), Scaramucci
patent: 3144876 (1964-08-01), Frye
patent: 3640306 (1972-02-01), Vogt

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