Seal for shielding enclosure

Details Seal for shielding enclosure Seal for shielding enclosure

1989-11-06

1991-08-13

Picard, Leo P.

Electricity: conductors and insulators

Anti-inductive structures

Conductor transposition

49478, 361424, H05K 900, E06B 716

Patent

active

050398261

ABSTRACT:
A seal (35) for a shielding enclosure (20) having a hinged door assembly (27), comprising a non-punctured flexible interior door skin (39) having an outer face (53) mating with a pair of spaced metal bands (74, 75) secured to an edge 91 of a panel 24 which forms the enclosure (20). Columns (79) of magnetic material mount on the exterior faces of such bands (74, 75) and an insulated electromagnetic coil (76) is contained within a cavity formed by the bands' spacing. Energization of coil (76) seals together skin (53) and bands (74, 75). The coil's wiring (84) passes through a sealing conduit (85) in panel (24) to a housing (87) for an electronic control unit inside enclosure (20) that filters out r-f waves traveling through conduit (85). Ingress and egress hand-actuated mechanisms (51, 52) do not interfere with the effected compressible seal, by reason of a special hinge leaf construction. Upon actuation of mechanisms (51, 52), the electromagnetic coil's circuit deenergizes, and the swinging of door assembly (27) upon its hinges (58, 59) is free of magnetic forces.

REFERENCES:
patent: 3260788 (1966-07-01), Stetson
patent: 4110552 (1978-08-01), Lombardi
patent: 4590710 (1986-05-01), Newland

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