Balanced ring seal

Details Balanced ring seal Balanced ring seal

1987-10-09

1990-04-24

Shoap, Allan N.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

277 83, 277 94, 277137, 277173, 4151737, 4151745, F16J 1534, F16J 1554

Patent

active

049194399

ABSTRACT:
A ring seal comprises an annular seal segment that is fixed against rotation but is axially movable relative to a fixed seal segment. The axially movable seal segment has substantially equal oppositely facing exposed radial surfaces whereby fluid pressure acting against the rotatable segment is substantially balanced in opposite axial directions.

REFERENCES:
patent: 1111312 (1914-09-01), Ljungstrom
patent: 1187212 (1916-06-01), Westinghouse
patent: 2141102 (1938-12-01), Brooke
patent: 2970750 (1961-02-01), Swearington
patent: 3188095 (1965-06-01), Van Vleet
patent: 3357708 (1967-12-01), Parr
patent: 3554661 (1971-01-01), Oglesby et al.
patent: 3558236 (1971-01-01), Bylsma
patent: 3972536 (1976-08-01), Warner et al.
patent: 4218789 (1980-08-01), Pask

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