Check valve for large conduits

Details Check valve for large conduits Check valve for large conduits

1975-10-14

1978-01-10

Cline, William R.

Fluid handling

Line condition change responsive valves

Direct response valves

1375274, 1375278, F16K 1503

Patent

active

040673561

ABSTRACT:
A check valve for large conduits having a stationary, rearwardly open hollow valve core mounted inside an enlarged-diameter portion of the housing bore, a matching dish-shaped valve poppet carried by a pivot lever closing the forward end of the valve core in the open valve position in which the valve poppet is spaced a short axial distance from the valve seat, so that a rapid closing action is obtained, as soon as an incipient reverse flow enters the hollow valve core.

REFERENCES:
patent: 932028 (1909-08-01), Koenig
patent: 2443036 (1948-06-01), Hopkins
patent: 2912001 (1959-11-01), Green
patent: 3027909 (1962-04-01), Swain
patent: 3520324 (1970-07-01), Meregalli

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