Machinery seal

Details Machinery seal Machinery seal

1998-12-09

2000-08-08

Knight, Anthony

Seal for a joint or juncture

Seal between relatively movable parts

Piston ring or piston ring expander or seat therefor

277448, 277552, 277566, 277582, 277584, F16J 1532, F16J 928

Patent

active

060989874

ABSTRACT:
A seal assembly for a groove or seal gland in a relatively stationary machine part for sealing an axially displaceable machine part extending therethrough comprises a relatively flexible seal element supported by a relatively rigid support element. The seal element has a static seal that bears on a radial wall of the seal gland to provide superior back-pressure relief while maintaining proper seal element position in the seal gland.

REFERENCES:
patent: 2799523 (1957-07-01), Parker
patent: 3023014 (1962-02-01), Donner
patent: 3601419 (1971-08-01), Fern
patent: 4089534 (1978-05-01), Litherland
patent: 4201392 (1980-05-01), Watts
patent: 4426090 (1984-01-01), Bender
patent: 4556223 (1985-12-01), VanLoon et al.
patent: 4893823 (1990-01-01), Strouse et al.
patent: 4900042 (1990-02-01), Genda
patent: 5269537 (1993-12-01), Kiesel

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