Electricity: conductors and insulators – Anti-inductive structures – Conductor transposition
Patent
1987-09-25
1989-04-11
Grimley, A. T.
Electricity: conductors and insulators
Anti-inductive structures
Conductor transposition
49478, H05K 900
Patent
active
048208850
ABSTRACT:
An electromagnetic interference (EMI) shielding gasket for use with removable and hinged panels of enclosures of electronic equipment, where it is necessary to limit the escape or entrance of electromagnetic radiation through a gap between the panel and enclosure. The gasket includes an elongated metal strip having a clip for easy attachment to the panel or enclosure. The strip carries flexible, electrically conductive sheet material that provides the shield. The sheet material is attached to the strip in a manner to provide a cavity therebetween along their length. A free floating elongated magnet is positioned within the cavity so that it urges the conductive sheet material against an edge of a mating piece of the enclosure by magnetic attraction. The structure conforms to surfaces with significant variations, thereby providing an effective shield, and also assists in maintaining the panel closed against the enclosure.
REFERENCES:
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patent: 3260788 (1966-07-01), Stetson
patent: 3889043 (1975-07-01), Ducros
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Beck et al., Gasket Retainer IBM Technical Disclosure Bulletin, vol. 20 No. 11A p. 4495 Apr. 1978.
"Bunting: Flexible Permanent Magnetic Strip" Brochure, Bunting Magnetics Co.
Grimley A. T.
Tone David A.
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