Fluid seal

Details Fluid seal Fluid seal

1976-11-26

1977-09-27

Ward, Jr., Robert S.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

277DIG6, 260 79, 308238, B65D 5302, C08F 2800

Patent

active

040507017

ABSTRACT:
The novel seal comprises a non-contacting, floating ring seal formed, by injection molding, of carbon fiber-reinforced polyphenylene sulfide, for use in fluid-sealing a rotary steel shaft. The reinforced polyphenylene sulfide exhibits thermal expansion which is substantially equal to that of steel; thus a predetermined radial clearance is maintained, between the seal and the shaft without the need for a circumferential steel band, or the like, shrunk onto the seal.

REFERENCES:
patent: 2998397 (1961-08-01), Riesing
patent: 3324087 (1967-06-01), Smith et al.
patent: 3395132 (1968-07-01), Smith
patent: 3741855 (1973-06-01), Harrison et al.
patent: 3776612 (1973-12-01), Barlow
patent: 3799454 (1974-03-01), Blackwell
patent: 3870589 (1975-03-01), Shobert
patent: 3873168 (1975-03-01), Viola et al.
patent: 3909087 (1975-09-01), Cairns
patent: 3932008 (1976-01-01), McCloskey et al.
patent: 3954932 (1976-05-01), Coale
Chemtech, Issue of Aug. 1972 (American Chemical Society), cover and pp. 481-485.

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