Valve apparatus

Details Valve apparatus Valve apparatus

1982-07-06

1984-08-28

Schwadron, Martin P.

Valves and valve actuation

Blow-out preventers

277127, E21B 3306

Patent

active

044679963

ABSTRACT:
A valve apparatus of the ram type having a pair of ram assembly bodies in opposed relation transverse to the valve bore. The ram bodies carry, in recess, respective inner seals which, upon inward movement of the ram bodies, effect sealing engagement so as to restrict flow through the valve bore. A plurality of locking pins are included disposed vertically through each seal, each such locking pin having projections extending outward of its respective seal beyond the top and bottom thereof. Each projection is matingly received by a corresponding slotted portion of the recess within and defined by said ram assembly body for restricting relative movement of said inner seal with respect to movement of its respective ram assembly body.

REFERENCES:
patent: 2912214 (1959-11-01), Allen et al.
patent: 3208357 (1965-09-01), Allen et al.
patent: 4227543 (1980-10-01), Williams, Jr.
patent: 4323256 (1982-04-01), Miyagishima et al.
patent: 4398729 (1983-08-01), Bishop et al.

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