Sealing device

Details Sealing device Sealing device

1978-07-05

1979-08-28

Ward, Jr., Robert S.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

277 27, 277 343, 277188A, 92240, F16J 1546

Patent

active

041658809

ABSTRACT:
A sealing device in a cylindrical or annular working chamber in hydraulic mechanisms consists of a disk or plug formed as a sealing ring holder and from such a deformable material that by the action of increasing hydraulic fluid pressure the material radially expands into completely sealingly contact with the chamber. The disk or plug is provided with a sealing ring for performing the sealing function before said pressure increase.

REFERENCES:
patent: 3166991 (1965-01-01), Blenke
patent: 3182568 (1965-05-01), Davis
patent: 3514113 (1970-05-01), Weiswurm
patent: 3565446 (1971-02-01), Nyberg
patent: 3887199 (1975-06-01), Sundqvist
patent: 3994208 (1976-11-01), Boyer

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