Seal for a joint or juncture – Seal between relatively movable parts – Relatively rotatable radially extending sealing face member
Patent
1989-10-20
1990-11-27
Shoap, Allan N.
Seal for a joint or juncture
Seal between relatively movable parts
Relatively rotatable radially extending sealing face member
277 85, 277 93SD, F16J 1534, F16J 1538
Patent
active
049730657
ABSTRACT:
A seal assembly for sealing about an axis of rotation has a pair of seal rings relatively rotatable about the axis while in face engagement radially of the axis. One of the seal rings is yieldably pressed against the other, which is held by axially fixed clamping members at axially opposite sides thereof and has a substantially different coefficient of expansion than the clamping members. The clamping members have oppositely directed retainer surfaces annular about the axis, each paired with an opposed parallel surface on the clamped ring. Each pair of retainer and opposed surfaces is inclined at an acute angle to the other pair with its surface generatrices centered on substantially the same point on the axis as those of the other pair to minimize distortion of the radial plane of engagement of the rotary seal faces by relative expansion/contraction of the clamped ring and clamping members.
REFERENCES:
patent: 1936815 (1933-11-01), Wilkinson
patent: 3222075 (1965-12-01), Haeber
patent: 3294408 (1966-12-01), Smith
patent: 3591188 (1971-07-01), Eisner
patent: 3675933 (1972-07-01), Nappe
patent: 3727923 (1973-04-01), McEwen
patent: 3773337 (1973-11-01), Adams
patent: 4008897 (1977-02-01), Wentworth
patent: 4136887 (1979-01-01), Wentworth
patent: 4184689 (1980-01-01), Brodell
patent: 4343477 (1982-08-01), Bridges
patent: 4349205 (1982-09-01), McGee
patent: 4364571 (1982-12-01), Hershey
Taylor, NASA Technical Briefs, pp. 69-70, Circle Reader Action No. 475, LAR-13435, (May 1987).
A. W. Chesterton Company
DePumpo Daniel G.
Shoap Allan N.
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