High pressure rotary stripper

Details High pressure rotary stripper High pressure rotary stripper

1982-05-24

1985-02-19

Cohan, Alan

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

251 1R, 285365, F16J 1556, F21B 3303

Patent

active

045000948

ABSTRACT:
A rotating blowout preventor having only one moving part which cooperates with an upper bushing to provide resistance to upthrust and downthrust. The apparatus includes provisions for interaction to occur between the rubber of the stripper and the inside peripheral wall surface of the main body in a manner to provide a radial bearing member which resists lateral movement of a driving member received axially through the rotating stripper rubber. The stripper rubber rotates in low friction relationship respective to the remainder of the rotating blowout preventor. The apparatus includes a minimum of moving parts, and therefore is much easier to manufacture, maintain, and operate.

REFERENCES:
patent: 3868832 (1975-03-01), Biffle
patent: 4143880 (1979-03-01), Bunting et al.
patent: 4154448 (1979-05-01), Biffle
patent: 4157186 (1979-06-01), Murray et al.
patent: 4208056 (1980-06-01), Biffle
patent: 4398599 (1983-08-01), Murray

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