Spherical annular seal with outer sliding layer

Details Spherical annular seal with outer sliding layer Spherical annular seal with outer sliding layer

1993-10-04

1995-10-31

Cuchlinski, Jr., William A.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

277235R, 277235A, 277DIG6, 285267, F16J 1512

Patent

active

054622913

ABSTRACT:
A spherical annular seal having a through hole in a center thereof and a partially convex spherical surface portion on an outer surface thereof, wherein an inner peripheral surface of the spherical annular seal defining the through hole is reinforced by a reinforcing member formed of a metal mesh, and a uniform lubricating sliding layer of a lubricating composition containing 70 to 90 wt. % of boron nitride and 10 to 30 wt. % of alumina is formed on a surface of the partially convex spherical surface portion.

REFERENCES:
patent: 4601476 (1986-07-01), Usher et al.
patent: 4659091 (1987-04-01), Baasner et al.
patent: 4762330 (1988-08-01), Lonne et al.
patent: 4871181 (1989-10-01), Usher et al.
patent: 5040805 (1991-08-01), Ozora

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