Seal for a joint or juncture – Seal between relatively movable parts – Relatively rotatable radially extending sealing face member
Patent
1975-06-24
1978-01-10
Smith, Robert I.
Seal for a joint or juncture
Seal between relatively movable parts
Relatively rotatable radially extending sealing face member
277 24, F16J 1532
Patent
active
040675840
ABSTRACT:
A guide ring having a seating surface of `U`-shaped cross-section. A plurality of the guide rings may be carried by a piston, piston rod or the like in abutting relation to provide a continuous imperforate surface, or axially spaced from one another with a sealing member interposed between adjacent rings, the sealing member being biased into its operative position by fluid pressure. A ring of resilient material is positioned radially inwardly of the rings and sealing member and is provided with chamfered surfaces which are acted on by biasing means. A sealing arrangement is also provided comprising ring seals and/or stripper rings disposed in a groove in a piston or piston rod and formed of soft material with a lip seal in contact with a surface to be sealed. A shaped sliding ring of abrasion-resistant material which bears on the surface to be sealed is disposed in the ring seal and/or stripper ring.
REFERENCES:
patent: 2841429 (1958-07-01), McCuistion
patent: 3774920 (1973-11-01), Sievenpiper
patent: 3920252 (1975-11-01), Dechauanne
patent: 3990712 (1976-11-01), Dechavanne
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