Anti-extrusion seal with primary and secondary complementary ele

Details Anti-extrusion seal with primary and secondary complementary ele Anti-extrusion seal with primary and secondary complementary ele

1986-03-21

1987-01-13

Ward, Robert S.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

277125, 277165, 277188A, F16J 1522

Patent

active

046359451

ABSTRACT:
A composite seal comprising a primary seal element and a secondary sealing element. The primary seal element is more readily deformable than the secondary seal element. Juxtaposed surfaces of the seal elements are configured to minimize extrusion of the primary seal element past the secondary seal element.

REFERENCES:
patent: 2665151 (1954-01-01), Fisler et al.
patent: 2934363 (1960-04-01), Knox
patent: 3554563 (1971-01-01), Schumacher
patent: 3833228 (1974-09-01), Gilliam
patent: 4090719 (1978-05-01), Simanskis et al.
patent: 4288082 (1981-09-01), Setterberg

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