Electricity: conductors and insulators – Anti-inductive structures – Conductor transposition
Patent
1994-11-14
1996-07-09
Kincaid, Kristine L.
Electricity: conductors and insulators
Anti-inductive structures
Conductor transposition
220230, 361818, H05K 900
Patent
active
055346634
ABSTRACT:
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.
REFERENCES:
patent: 2565891 (1951-08-01), Sherman
patent: 3260788 (1966-07-01), Stetson
patent: 3364298 (1968-01-01), Peters
patent: 3468576 (1969-09-01), Beyer et al.
patent: 3961721 (1976-06-01), Gordon et al.
patent: 4110552 (1978-08-01), Lombardi
patent: 5135012 (1992-08-01), Kamen et al.
patent: 5142101 (1992-08-01), Matsuzaki et al.
Jones Glenn E.
Lee Roanne A.
Rivers Craig J.
Daubenspeck William C.
Horgan Christopher
Kincaid Kristine L.
Moser William R.
Padilla Robert M.
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