Sealed shafts moveable in vacuum chambers by exercising control

Details Sealed shafts moveable in vacuum chambers by exercising control Sealed shafts moveable in vacuum chambers by exercising control

1988-06-16

1989-03-14

Ward, Robert S.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

277 3, 277DIG7, 7386483, 414292, F16J 1540

Patent

active

048119580

ABSTRACT:
A sealed shaft for use in an evacuated chamber in which the shaft can be moved by control from outside the chamber while maintaining the seal around the shaft.

REFERENCES:
patent: 2553938 (1951-05-01), Peirce
patent: 3410672 (1968-11-01), De Lajarte
patent: 3643511 (1972-02-01), Warncke et al.
patent: 3888300 (1975-06-01), Guichard et al.
patent: 3910428 (1975-10-01), Peterson
patent: 3984719 (1976-10-01), Grasis et al.
patent: 4067697 (1978-01-01), Polaschegg
patent: 4140228 (1979-02-01), Hathaway et al.
patent: 4174842 (1979-11-01), Partus

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