Anti-extrusion seals and packings

Details Anti-extrusion seals and packings Anti-extrusion seals and packings

1980-01-10

1982-01-12

Ward, Jr., Robert S.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

277125, 277205, 277230, 277235R, F16J 1518

Patent

active

043101631

ABSTRACT:
A sealing device comprising a main body section defining at least one sealing surface, and comprised of a flexible material a secondary anti-extrusion section adjoined to the exterior of the main body section and comprised of a material more rigid than that of the main body section, and a primary anti-extrusion section adjoined to the secondary anti-extrusion section adjacent an exterior surface thereof and comprised of a metallic material more rigid than that of the secondary anti-extrusion section.

REFERENCES:
patent: 2081040 (1937-05-01), King
patent: 2844421 (1958-07-01), Hayman
patent: 2926976 (1960-03-01), Bowerman et al.
patent: 2964366 (1960-12-01), Reynolds
patent: 3009721 (1961-11-01), Newton
patent: 3094337 (1963-06-01), Pippert et al.
patent: 3279805 (1966-10-01), Quinson
patent: 3540745 (1970-11-01), Flock
patent: 3719366 (1973-03-01), Pippert
patent: 4138144 (1979-02-01), Pierce
patent: 4219204 (1980-08-01), Pippert

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