Front packer for ram-type blowout preventer

Details Front packer for ram-type blowout preventer Front packer for ram-type blowout preventer

1996-01-24

1997-02-18

Fox, John C.

Valves and valve actuation

Blow-out preventers

Radial reciprocating ram

277199, E21B 3306

Patent

active

056034814

ABSTRACT:
A ram-type blowout preventer (10) has a front packing arrangement (24) with a packer assembly (28) therein. Packer assembly (28) includes an elastomeric packer member (30) and a recess (46) defined between plates (32) and (34) adjacent elastomeric packer member (30). A replaceable wear insert (60) insertable within recess (46) has projections (74) on opposed parallel sides (66, 68) of insert (60). Projections (74) include a pair of wedge-shaped projecting portions (76, 78) which press into and deform the adjacent contacting sides (48, 50) of elastomeric packer member (30) for retaining insert (60) in position within recess (46) without any separate preformed receptacles or grooves formed in elastomeric packer member (30).

REFERENCES:
patent: 4323256 (1982-04-01), Miyagishima et al.
patent: 4398729 (1983-08-01), Bishop et al.
patent: 4541639 (1985-09-01), Williams, III
patent: 5127623 (1992-07-01), McDugle
patent: 5251870 (1993-10-01), Ward

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