Seal for a joint or juncture – Seal between relatively movable parts – Relatively rotatable radially extending sealing face member
Patent
1978-01-25
1979-01-30
Ward, Jr., Robert S.
Seal for a joint or juncture
Seal between relatively movable parts
Relatively rotatable radially extending sealing face member
277 42, 277189, F16J 1518, F16J 1536
Patent
active
041368851
ABSTRACT:
An axial shaft sealing unit for sealing a stationary machine part relative to a rotatable machine part. The sealing unit includes a slide ring seal mounted on the stationary machine part in a sealing manner and includes a housing with a bottom located transversely to the axis of the slide ring seal, a primary seal forming a sliding ring, a bellows-like secondary seal, and a compression spring arranged between the primary seal and the housing bottom or base. The bellows-like secondary seal is vulcanized in a position which corresponds substantially to its installed position and is held in this position in its operative state by a detachable holder. A counter ring rests directly against a machine component which is non-rotatably connected to the rotatable machine part.
REFERENCES:
patent: 1856581 (1932-05-01), Mitchell
patent: 3123364 (1964-03-01), Ennis
patent: 3536333 (1970-10-01), Gits et al.
patent: 3743305 (1973-07-01), Berens et al.
patent: 3813102 (1974-05-01), Derman
patent: 3947944 (1976-04-01), Washington
Becker Walter
Kupfer-Asbest-Co. Gustav Bach
Ward, Jr. Robert S.
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