Inner seal for ram-type blowout preventer

Details Inner seal for ram-type blowout preventer Inner seal for ram-type blowout preventer

1997-09-15

1998-11-10

Fox, John

Valves and valve actuation

Blow-out preventers

Radial reciprocating ram

251 11, E21B 3306

Patent

active

058332081

ABSTRACT:
A resilient sealing insert for use in a ram-type blowout preventer the insert having an outer sealing surface enclosing an angle of less than 180.degree. and sealing faces that extend radially outwardly from the outer sealing surface in a plane substantially normal to the axis of generation of the arcuate sealing surface.

REFERENCES:
patent: 2278050 (1942-03-01), Allen et al.
patent: 3434729 (1969-03-01), Shaffer et al.
patent: 4229012 (1980-10-01), Williams, III
patent: 4398729 (1983-08-01), Bishop et al.
patent: 5127623 (1992-07-01), McDugle

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