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Title: Electrically shielded enclosure with magnetically retained removable cover

Disclosed is an electrically shielded enclosure having electrical components therein and a removable electrically shielded cover over an opening in the enclosure with a magnetic securement mechanism provided to removably secure the cover to the enclosure in a manner which will provide easy access, yet also provide an electrical seal between the cover and the enclosure capable of preventing the passage of electrical radiation through the joint between the cover and the enclosure. Magnets are provided on the enclosure peripherally around the opening and facing the cover, and a ferromagnetic surface is provided on the mating surface of the cover facing the magnets, with a continuous electrical seal provided between the magnets and the ferromagnetic surface on the cover to prevent the leakage of electromagnetic radiation therethrough. In one embodiment the electrical seal includes a flexible metal casing or surface, which is attached to the enclosure and positioned between the magnets and the ferromagnetic surface on the cover, and which is sufficiently flexible to be capable of conforming to the ferromagnetic surface to provide an electrical seal between the cover and the enclosure. In another embodiment, the electrical seal includes a metal mesh associated with the enclosure and positioned betweenmore » the magnets on the enclosure and the ferromagnetic surface on the cover. The metal mesh is also capable of conforming to the surface of the ferromagnetic surface to thereby provide an electrical seal between the cover and the enclosure.« less
Inventors:
 [1];  [2];  [1]
  1. (Livermore, CA)
  2. (San Francisco, CA)
Issue Date:
OSTI Identifier:
870503
Assignee:
United States of America as represented by United States (Washington, DC) LLNL
Patent Number(s):
US 5534663
Contract Number:
W-7405-ENG-48
Research Org:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Country of Publication:
United States
Language:
English
Subject:
electrically; shielded; enclosure; magnetically; retained; removable; cover; disclosed; electrical; components; therein; magnetic; securement; mechanism; provided; removably; secure; manner; provide; easy; access; seal; capable; preventing; passage; radiation; joint; magnets; peripherally; facing; ferromagnetic; surface; mating; continuous; prevent; leakage; electromagnetic; therethrough; embodiment; flexible; metal; casing; attached; positioned; sufficiently; conforming; mesh; associated; flexible metal; mating surface; electrical components; metal mesh; components therein; electromagnetic radiation; ferromagnetic surface; metal casing; shielded enclosure; electrically shielded; provide easy; removable cover; closure cap; continuous electrical; movable cover; movable electrically; seal provide; electrical component; /174/220/361/

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