Mechanical face seal

Details Mechanical face seal Mechanical face seal

1997-10-22

1999-12-28

Reese, Randolph A.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

277384, 277393, F16J 1536

Patent

active

060070692

ABSTRACT:
A mechanical end face seal for sealing between a housing and a relatively rotating shaft which seal includes a pair of relatively rotating annular rings having seal faces in sealing contact with each other to define a seal interface, with one of the rings adapted to be secured to said shaft for rotation therewith, and the other fixed relative to the housing and one being axially movable toward the other. A generally annular flexible metal diaphragm secured between the axially movable ring and either the housing or shaft includes a generally radial disc-like central portion which defines a plurality of annular convolutions formed by protrusions extending in opposite axial directions. The diaphragm is pressed onto a cylindrical surface on the ring at about the center of mass of the ring. The surface includes a coating of a compound including PTFE, grit and a binder. In one form, the seal utilizes a second seal ring pressed into fluid tight relation with its associated carrier at about the center of mass of the ring. In another form, a seal ring is provided which is secured to its associated carrier in fluid tight relation utilizing welding techniques. The associated methods are disclosed.

REFERENCES:
patent: 1063633 (1913-06-01), Wilkinson
patent: 1561426 (1925-11-01), Fischbacher
patent: 1780248 (1930-11-01), Spreen
patent: 2000341 (1935-05-01), Larsh
patent: 2014932 (1935-09-01), Hallett
patent: 2167669 (1939-09-01), Molyneux
patent: 2189197 (1940-02-01), Cerny
patent: 2249930 (1941-07-01), Bailey et al.
patent: 2267994 (1941-12-01), Reynolds et al.
patent: 2299590 (1942-10-01), Reynolds
patent: 2322834 (1943-06-01), Dornhofer
patent: 2393260 (1946-01-01), Pardee
patent: 2446243 (1948-08-01), Reynolds
patent: 2465546 (1949-03-01), Marslek
patent: 2814512 (1957-11-01), Quinn et al.
patent: 2866656 (1958-12-01), Dobrosavljevid
patent: 2994547 (1961-08-01), Dohlun et al.
patent: 3024048 (1962-03-01), Kobert
patent: 3061318 (1962-10-01), Laser
patent: 3131943 (1964-05-01), Mueller
patent: 3203704 (1965-08-01), Mueller
patent: 3332692 (1967-07-01), Mueller
patent: 3391939 (1968-07-01), Mueller
patent: 3391941 (1968-07-01), Donley
patent: 3507504 (1970-04-01), Donley
patent: 3575424 (1971-04-01), Taschenberg
patent: 3895811 (1975-07-01), Richard, Jr. et al.
patent: 3948533 (1976-04-01), Novosad
patent: 4275889 (1981-06-01), Butler et al.
patent: 4700041 (1987-10-01), Morita et al.
patent: 4754981 (1988-07-01), Burns
patent: 4779876 (1988-10-01), Novosad
patent: 5199719 (1993-04-01), Heinrich et al.
patent: 5226787 (1993-07-01), Freeman
patent: 5492340 (1996-02-01), Lederman

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