Self-aligning shaft seal

Details Self-aligning shaft seal Self-aligning shaft seal

1978-12-20

1980-10-21

Ward, Jr., Robert S.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

277212FB, 74 181, F16J 1552

Patent

active

042290104

ABSTRACT:
A self-aligning seal for minimizing, or entirely suppressing, the flow of a fluid in a direction generally longitudinally of a shaft subjected to axial motions and to tilting motions in any direction. The seal comprises a shaft, a bushing surrounding said shaft, a convoluted diaphragm having radially inner support means affixed to said bushing and radially outer support means affixed to a fixed structure. The bushing has abutment means limiting the relative movement of bushing and shaft. The bushing has preferably externally the shape of a frustum of a cone which facilitates connecting the radially inner end of the convoluted diaphragm to the bushing. The bushing may also be provided with elastomeric sealing means such as an "O" ring precluding the flow of fluid through the narrow gap formed between the shaft and the shaft-receiving bore of the bushing.

REFERENCES:
patent: 1959259 (1934-05-01), Zerk
patent: 2050702 (1936-08-01), Jackson
patent: 2323569 (1943-07-01), Rzeppa
patent: 2510362 (1950-06-01), Anderson
patent: 2620208 (1952-12-01), Patch et al.
patent: 3208289 (1965-09-01), Hutter et al.
patent: 3232126 (1966-02-01), Pucciarello et al.
patent: 3430995 (1969-03-01), Herbenar et al.
patent: 3449965 (1969-06-01), Ross
patent: 3468171 (1969-09-01), Macielinski
patent: 3582091 (1971-06-01), Smith
patent: 3822570 (1974-07-01), Fisher
patent: 3830838 (1974-08-01), Hadick et al.
patent: 4132422 (1979-01-01), Saukey et al.

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