Shielded access apparatus for use in an enclosure for preventing

Static structures (e.g. – buildings) – Combined

Patent

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Details

52 33, 52204, 109 1R, 109 495, 109 84, 174 35MS, H05K 900, E06B 722, E06B 104

Patent

active

048416924

ABSTRACT:
A shielded access apparatus for enabling personnel access to an enclosure which is shielded to prevent propagation of electromagnetic energy into and out of the enclosure. The apparatus includes an access enclosure of electrically conductive material and first and second openings in the enclosure. A shield is positioned in the enclosure between the first and second openings for preventing radiated electromagnetic energy passing through one of the openings from travelling along a straight line to the other opening. Absorption material lines the interior of the enclosure and absorbs radiated electromagnetic energy passing through the enclosure.

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patent: 3608280 (1971-09-01), Martin
patent: 3745226 (1973-07-01), Nichols et al.
patent: 4556757 (1985-12-01), Oberlach

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