Contactless seal

Details Contactless seal Contactless seal

1976-08-26

1978-10-03

Smith, Robert I.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

277 961, F16J 1534

Patent

active

041180402

ABSTRACT:
The pressure chamber located in the sealing member is sub-divided by webs into a plurality of individual sub-chambers with restrictors between each sub-chamber and the barrier medium supply in order to obtain a uniform adjustment over the entire periphery of the gap between the sealing member and rotating part. Various types of means such as pressure-filled tubes are used to bias the sealing member from within a groove in the stationary part towards the rotatable part.

REFERENCES:
patent: 1876515 (1932-09-01), Emmet
patent: 2688981 (1954-09-01), Greer et al.
patent: 3093382 (1963-06-01), Macks
patent: 3737139 (1973-06-01), Watts

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