Sealing device

Details Sealing device Sealing device

1997-09-15

1999-11-16

Knight, Anthony

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

277385, 277390, 277391, F16J 1538

Patent

active

059843128

ABSTRACT:
A sealing device comprises a slide ring and a counterring having sealing surfaces, the slide ring and counterring contacting one another under axial prestressing in a sealing manner and capable of rotating relative to one another, the counterring and a substantially L-shaped engaging ring being interconnected, the engaging ring being affixed to a shaft to be sealed, and the counterring and the engaging ring being sealed relatively to each other by a sealing ring. The counterring contacts a radial segment of the engaging ring and surrounds an axial segment with radial clearance, and the sealing ring is sealingly arranged, under elastic prestressing, in the gap formed by the clearance. The counterring has an inner peripheral surface which forms an angle .alpha. of about 0.5.degree. to about 60.degree. with an axis of rotation, and the radial clearance in which the sealing ring is arranged is greater on the side facing the radial segment of the engaging ring than on the side facing the slide ring.

REFERENCES:
patent: 2440155 (1948-04-01), Peterson et al.
patent: 2445018 (1948-07-01), Brady, Jr.
patent: 2447930 (1948-08-01), Biggs
patent: 2559963 (1951-07-01), Jensen
patent: 4136885 (1979-01-01), Uhrner
patent: 4272084 (1981-06-01), Martinson et al.
patent: 5199719 (1993-04-01), Heinrich et al.

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