Antifriction fluid seal assembly

Details Antifriction fluid seal assembly Antifriction fluid seal assembly

1982-02-08

1983-12-20

Levy, Stuart S.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

277 27, 277152, 277165, 277177, F16L 1700, F16L 2108, F16J 1532

Patent

active

044213301

ABSTRACT:
A two-stage fluid seal assembly is provided for sealing between relatively moving parts, such as a piston and cylinder. The assembly comprises a hard-sealing, non-resilient material effective at high pressure and a resilient soft-sealing material effective at low pressures.

REFERENCES:
patent: 3716245 (1973-02-01), Turolla
patent: 3765690 (1971-01-01), Sievenpiper
patent: 4229013 (1980-10-01), Burke et al.
patent: 4268045 (1981-05-01), Traub

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