Arrangement for cleaning a sealing ring on a shaft

Details Arrangement for cleaning a sealing ring on a shaft Arrangement for cleaning a sealing ring on a shaft

1978-02-23

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 15, 277 59, 277 68, 277 72R, F16J 1532, F16J 1540

Patent

active

041368860

ABSTRACT:
A rotatable shaft extends from the interior of a receptacle through a wall thereof forming a closed chamber surrounding the shaft; and a first sealing ring surrounding the shaft is operable to prevent flow into the chamber from the receptacle interior but to allow flow in the opposite direction, a second sealing ring surrounding the shaft to prevent flow from the chamber in the axial direction away from the receptacle interior. Valve means are operable selectively to connect the chamber to either a cleaning liquid supply source or a draining passage or to disconnect the chamber simultaneously from both said source and passage.

REFERENCES:
patent: 3003506 (1961-10-01), Wosicki
patent: 3081095 (1963-03-01), Hamrick
patent: 3088744 (1963-05-01), Ezekiel et al.
patent: 3218085 (1965-11-01), Grace
patent: 3219273 (1965-11-01), Killen
patent: 3521890 (1970-07-01), Holmes et al.
patent: 3599993 (1971-08-01), Eriksson
patent: 3726531 (1973-04-01), Pagan et al.
patent: 3934311 (1976-01-01), Tompson

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