Electrical connectors – With unauthorized connection preventer – e.g. – key or... – Prong cover
Patent
1992-11-12
1994-02-22
Bradley, Paula A.
Electrical connectors
With unauthorized connection preventer, e.g., key or...
Prong cover
439304, 439367, H01R 1344
Patent
active
052882390
ABSTRACT:
A device for preventing the unauthorized removal of electrical appliances having a cord terminating in a plug with two prongs having aligned holes therethrough, comprises an enclosure adapted to be opened and closed and having holes through a side wall thereof of a size to permit the insertion of the prongs through the holes but to prevent insertion of the plug through the holes. The enclosure is locked against unauthorized opening. A spring clip within the enclosure is removably engageable within the holes through the prongs and releasably retains the prongs within the enclosure. The enclosure comprises two portions hingedly interconnected, and the lock releasably retains these two portions closed together. The enclosure comprises polygonal channels which, when closed together, form a polygonal enclosure of closed polygonal cross-sectional configuration, preferably rectangular, for example square.
REFERENCES:
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patent: 4060297 (1977-11-01), Marshall et al.
patent: 4204723 (1980-05-01), Bloomingdale
patent: 4212175 (1980-07-01), Zakow
patent: 4566297 (1986-01-01), Hawley
patent: 4705335 (1987-11-01), Goebel
patent: 5055057 (1991-10-01), Boyer
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