Electrically shielded enclosure with magnetically retained removable cover

Patent · Tue Jul 09 04:00:00 EDT 1996

OSTI ID:253873

Rivers, C J; Lee, R A; Jones, G E

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 between 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. 4 figs.

• Assignee: Dept. of Energy, Washington, DC (United States)
• Patent Number(s): US 5,534,663/A/
• Application Number: PAN: 8-340,303
• OSTI ID: 253873
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
CONTAINERS
COVERINGS
DESIGN
ELECTRICAL EQUIPMENT
SEALS
SHIELDS