High and low pressure seal

Details High and low pressure seal High and low pressure seal

1979-04-16

1980-05-06

Ward, Jr., Robert S.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

277188R, 277205, F16J 1532

Patent

active

042013925

ABSTRACT:
This invention discloses a seal assembly for use in high and/or low pressure applications which allow for selective bleeding in a given direction of fluid flow. The seal assembly includes a resilient seal ring, a split spacer ring, and a split back-up ring, all interacting in a manner such that when subjected to pressure from one direction, the resilient seal ring pivots about the spacer ring, permitting bleeding of fluid across the seal. When subjected to pressure from the opposite direction, the resilient seal ring is forced against the split back-up ring, thereby forming a tight seal, preventing leakage.

REFERENCES:
patent: 2705177 (1955-03-01), Waring
patent: 2979350 (1961-04-01), Lansky
patent: 3271038 (1966-09-01), Bastow
patent: 3563558 (1971-02-01), Doutt
patent: 3603603 (1971-09-01), Woodson

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