Mechanical seal assembly

Details Mechanical seal assembly Mechanical seal assembly

1989-10-04

1990-11-20

Shoap, Allan N.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

277 89, 277 93SD, F16J 1536, F16J 1538

Patent

active

049713370

ABSTRACT:
An improved mechanical seal using hard non-weldable seal rings in which the seal ring is supported by a seal ring flange and in which a GRAFOIL gasket is positioned in an annular recess between the seal ring and the flange; the seal ring being held in the flange by means of a retainer ring welded to the flange, thereby avoiding the use of interference fits and/or lap fits between the flange and the seal ring.

REFERENCES:
patent: 3276780 (1966-10-01), Andresen et al.
patent: 3356378 (1967-12-01), Tracy
patent: 3475033 (1969-10-01), Voitik
patent: 3764150 (1973-10-01), Newkirk
patent: 3773337 (1973-11-01), Adams
patent: 3895813 (1975-07-01), Davies et al.
patent: 4103904 (1978-08-01), Tankus
patent: 4124218 (1978-11-01), Wentworth, Jr.
patent: 4580793 (1986-04-01), Bronson
patent: 4653980 (1987-03-01), Wentworth
patent: 4693481 (1987-09-01), Quinn
patent: 4744569 (1988-05-01), Wentworth, Jr. et al.

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