Blowout preventer with removable packer

Details Blowout preventer with removable packer Blowout preventer with removable packer

1993-10-04

1994-08-02

Fox, John C.

Valves and valve actuation

Blow-out preventers

Radial reciprocating ram

251 11, E21B 3306

Patent

active

053338324

ABSTRACT:
An improved ram-type blowout preventer having an improved resilient ram packer which includes an upper retainer plate and a lower retainer plate which each have a front face with a central recess therein, a back and sides, resilient end elements bonded between the plates at the sides and having facing surfaces extending from front to back and a resilient insert shaped to be positioned between said plates and between said end elements with sides mating with the shape of the facing surfaces of the end elements.

REFERENCES:
patent: 4398729 (1983-08-01), Bishop et al.

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