Rotary seal with linear wear resistant treated layer

Details Rotary seal with linear wear resistant treated layer Rotary seal with linear wear resistant treated layer

1983-06-07

1985-03-19

Ward, Robert S.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

277 962, 277204, 277224, 277DIG6, F16J 1526, F16J 1534

Patent

active

045054851

ABSTRACT:
A rotary seal improved in quality by providing relatively movable seal surfaces in the form of a hardened, wear resistant layer covering only a part of the seal body surface. In particular the hardened layer may be formed in a helical fashion such that upon relative rotation of the seal surfaces, entering abrasives and the like may be shunted to the outside periphery of the seal, per se.

REFERENCES:
patent: 3539192 (1970-11-01), Prasse
patent: 3810637 (1974-05-01), Bonvin
patent: 3814447 (1974-06-01), Prasse et al.
patent: 4132419 (1979-01-01), Sunami et al.

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