Door assembly for shielded room

Details Door assembly for shielded room Door assembly for shielded room

1994-11-29

1996-10-29

Ledynh, Bot L.

Electricity: conductors and insulators

Anti-inductive structures

Conductor transposition

174 35MS, 49303, H05K 900

Patent

active

055698786

ABSTRACT:
A door assembly for an EMI shielded room includes door structure defining an inner space parallel to the door faces. Plates are mounted in the space for movement toward and away from the door edges. Support and guide assemblies precisely regulate the plate movement. A pneumatic bladder spaced inward from the door edges forces the plates to move outward and return springs retract the plates when the bladder is vented. The outer borders of the plates carry bumpers that force flexible contact members into engagement with the jamb and threshold of a doorway.

REFERENCES:
patent: 4786758 (1988-11-01), Zielinski
patent: 4953324 (1990-09-01), Herrmann
patent: 5013869 (1991-05-01), Breithaupt
patent: 5017736 (1991-05-01), Yarger et al.
patent: 5120087 (1992-06-01), Pastva
patent: 5335464 (1994-08-01), Vanesky et al.
patent: 5454192 (1995-03-01), Adler et al.
patent: 5467559 (1995-11-01), Owens
"EMI RFI Shielding Doors", Jun. 7, 1993, DMCA Incorporated, Oceanside, CA 92054.
"EMI Shielding Doors", Tecknit Architectural Shielding Products, Cranford, NJ 07016.

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