Oil well string member with static seal

Details Oil well string member with static seal Oil well string member with static seal

1982-08-30

1983-12-20

Ward, Jr., Robert S.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

277 30, 2771162, 277117, 277190, 285140, F16J 1506, E21B 1910

Patent

active

044213239

ABSTRACT:
An oil well string member has a cylindrical outer periphery having first and second cylindrical surfaces axially spaced and connected by a tapered ramp. The surfaces are radially inwardly of the outer periphery. The first surface has a smaller diameter than the second surface. A seal assembly is provided along the first surface and arranged to respond to fluid pressure for moving the assembly across the ramp to the second surface to a sealing position.

REFERENCES:
patent: 2204586 (1940-06-01), Grau
patent: 2921632 (1960-01-01), Clark
patent: 3036639 (1962-05-01), Baker
patent: 3062295 (1962-11-01), Hanes
patent: 3068942 (1962-12-01), Brown
patent: 3288493 (1966-11-01), Brown
patent: 4169605 (1979-10-01), Nishimoto et al.
patent: 4304310 (1981-12-01), Jarrett

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