Cartridge type check valve

Details Cartridge type check valve Cartridge type check valve

1976-09-17

1978-04-18

Weakley, Harold W.

Fluid handling

With repair, tapping, assembly, or disassembly means

With disassembly tool engaging feature

137542, 13754313, 251322, 251323, F16K 4300

Patent

active

040846091

ABSTRACT:
A check valve comprises a housing defining a valve seat thereon and a valve member reciprocally mounted in the housing to normally engage the seat for blocking fluid flow therepast. Two pairs of split retaining members are mounted in axially spaced relationship on a stem of the valve member and are expanded axially thereon by a compression coil spring for biasing the valve member to its closed position. A stop member is secured on an end of the stem of the valve member to prevent movement of one pair of the retaining members therepast. A slot is formed axially through the stop member and extends partially in the stem of the valve member to expose an end of the spring.

REFERENCES:
patent: 1020766 (1912-03-01), Lowe
patent: 1434473 (1922-11-01), Arnold
patent: 1517511 (1924-12-01), Howarth
patent: 1973227 (1934-09-01), Schoenrook
patent: 3111961 (1963-11-01), Dudgeon

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