Sealing device for a vacuum enclosure

Details Sealing device for a vacuum enclosure Sealing device for a vacuum enclosure

1977-04-26

1978-08-29

Smith, Robert I.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

277180, F16J 1510

Patent

active

041099222

ABSTRACT:
The sealing device is adapted to a vacuum enclosure which can be applied against a bearing surface and essentially comprises at least two concentric seals mounted in a support which is rigidly fixed to said enclosure and extending parallel to the bearing surface. One seal consists of a solid annular seal made of flexible material and placed near the outer edge of the enclosure. The other seal consists of a hollow and inflatable annular seal which is placed near the inner edge of the enclosure and is connected to a source of fluid under pressure by means of a closable duct.

REFERENCES:
patent: 3248119 (1966-04-01), Smith et al.
patent: 3258271 (1966-06-01), Hollingsworth

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