Check valve seat and cage retainer

Details Check valve seat and cage retainer Check valve seat and cage retainer

1987-09-08

1988-11-08

Rivell, John

Fluid handling

Line condition change responsive valves

Direct response valves

1375155, 1375157, F16K 1503

Patent

active

047828552

ABSTRACT:
A swing check valve where the cage is a ring-like member supporting the disc or clapper where the disc is loaded from the downstream end of the body and held in operating position by a tubular retainer extending from the downstream end of the body. The cage and valve seat may be formed separately or as a part of the same member and the seat may be formed as a part of the valve body. The tubular retainer may be split lengthwise and compressed into the valve body for holding the cage and seat in assembled relation during shipment and handling.

REFERENCES:
patent: 444451 (1891-01-01), Messinger
patent: 1764186 (1930-06-01), Teesdale
patent: 2532067 (1950-11-01), LaBaur
patent: 2767735 (1956-10-01), Darling
patent: 3509908 (1970-05-01), Latham et al.
patent: 3620653 (1971-11-01), Gaylord et al.
patent: 3933173 (1976-01-01), Kajita
patent: 4257444 (1981-03-01), Ogle, Jr. et al.
patent: 4433702 (1984-02-01), Baker
patent: 4532958 (1985-08-01), Napditano

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