Inflatable gasket for radio frequency shielding enclosure

Details Inflatable gasket for radio frequency shielding enclosure Inflatable gasket for radio frequency shielding enclosure

1981-08-18

1983-02-01

Ward, Jr., Robert S.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

277226, 277230, 277236, 277901, 49477, 174 35GC, F16J 1512, F16J 1546, H05K 900

Patent

active

043711758

ABSTRACT:
An inflatable gasket provides an electrically conductive seal between conductive sections of a shielding enclosure. A flattened inflatable elastomeric tube is disposed within a flexible, conductive shielding medium mounted on or near the periphery of a conductive section of the enclosure. Inflation of the elastomeric member causes the member to elongate in the direction of the minor axis, thereby urging the shielding medium into conductive contact with adjacent sections of the enclosure. Deflation of the elastomeric member withdraws the shielding member from contact with at least one such section as a result of the elastomeric member returning to its uninflated shape due to its "memory" characteristics. In the preferred embodiment the shielding medium comprises a loosely fitting, flexible, conductive sheath.

REFERENCES:
patent: 2757225 (1956-07-01), Dunn
patent: 3055969 (1962-09-01), Schaller
patent: 3260788 (1966-07-01), Stetson
patent: 3296356 (1967-01-01), McAdams
patent: 3312769 (1967-04-01), La Kaff
patent: 3413406 (1968-11-01), Plummer
patent: 3437735 (1969-04-01), Schaller
patent: 3501868 (1970-03-01), Ganzinotti
patent: 3507974 (1970-04-01), Clark
patent: 3518355 (1970-06-01), Luce
patent: 3691688 (1972-09-01), Kaiserswerth
patent: 3717352 (1973-02-01), Jansing et al.
patent: 3889043 (1975-06-01), Ducros
patent: 3969572 (1976-07-01), Rostek
patent: 4065138 (1977-12-01), Severinsen
patent: 4098633 (1978-07-01), Kersten
patent: 4177353 (1979-12-01), McCormack

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