Valve apparatus

Details Valve apparatus Valve apparatus

1983-02-18

1984-12-18

Yeung, James C.

Valves and valve actuation

Lost motion between actuator and valve

251 1A, 92DIG4, F16K 3314

Patent

active

044887035

ABSTRACT:
There is disclosed a blowout preventer having rams which are moved between opened and closed positions by means of operating systems having axially reciprocable rods releasably connected to the rams for relative axial movement with respect thereto. The connections between the rams and rods fixedly support the rams against tilting, during repair or replacement, regardless of the relative axial position of the rods and rams.

REFERENCES:
patent: 777373 (1904-12-01), Howard
patent: 916831 (1909-03-01), Bettinger
patent: 1713364 (1929-05-01), Arbon
patent: 2146470 (1939-02-01), Grantham et al.
patent: 2241747 (1941-05-01), Shaw
patent: 3036807 (1962-05-01), Lucky et al.
patent: 4054156 (1977-10-01), Benson
patent: 4253638 (1981-03-01), Troxell, Jr.

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