Check valve

Details Check valve Check valve

1988-02-16

1988-10-04

Rivell, John

Fluid handling

Line condition change responsive valves

Direct response valves

1375133, 137515, 137527, F16K 1503

Patent

active

047749814

ABSTRACT:
A check valve is disclosed, which comprises a hollow cylindrical valve body and a pair of substantially semicircular symmetrical valve plates. The valve body has a pair of ear-like bearing projections projecting in a diametrically opposed relation to each other from an open end. The valve plates each have a straight edge with an integral pivot pin provided on one end portion and an integral bearing portion provided at the other end. The two valve plates are joined together by inserting the pivot pin of each of them through the bearing portion of the other. The pivot pins of the joined valve plates are fitted in the bearing projections of the valve body such that the valve plates can be pivotally moved when they are opened and closed.

REFERENCES:
patent: 2877792 (1959-03-01), Tybus
patent: 3023771 (1962-03-01), Hinds
patent: 3072141 (1963-01-01), Wheeler, Jr.
patent: 3965926 (1976-06-01), Buckner
patent: 4043358 (1977-08-01), Sliski
patent: 4230148 (1980-08-01), Ogle, Jr.

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