Blowout preventer bonnet seal carrier

Details Blowout preventer bonnet seal carrier Blowout preventer bonnet seal carrier

1992-02-06

1992-11-24

Fox, John C.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

277186, F16J 1502

Patent

active

051657040

ABSTRACT:
A sealing structure for sealing between substantially aligned cylindrical surfaces including a seal carrier having a tubular body with external sealing ring grooves spaced apart so that sealing rings positioned in said grooves engage the cylindrical surface in sealing relationship and a relief groove in the central exterior of the seal carrier body to provide increased flexibility of the seal carrier body so that it can accommodate misalignment of the cylindrical surfaces and can respond to pressure differentials between the interior and exterior of the seal carrier body to reduce the extrusion gap between the seal carrier body and the cylindrical surfaces. The improved sealing structure of the present invention has a particular application for sealing between the bonnet and the body of a blowout preventer.

REFERENCES:
patent: 3997198 (1976-12-01), Linder
patent: 4437643 (1984-03-01), Brakhage, Jr. et al.
patent: 4747606 (1988-05-01), Jennings

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