Permanently attachable key-activated on/off switch

Details Permanently attachable key-activated on/off switch Permanently attachable key-activated on/off switch

1990-05-17

1991-12-10

Bradley, Paula A.

Electrical connectors

With unauthorized connection preventer, e.g., key or...

200 4302, 200 5109, 439188, H01R 1344

Patent

active

050713604

ABSTRACT:
A permanently attachable key-activated on-off switch comprises a housing with an electrical receptacle on one end and an electrical plug on the other. The electrical receptacle receives a locking pin that is inserted through the prongs of the receptacle and an appliance plug in the receptacle so that the appliance plug is permanently attached. A key switch is attached to the housing which controls and the flow of power between the electrical plug and the electrical receptacle when the electrical plug is inserted into a standard electrical outlet.

REFERENCES:
patent: 3345603 (1967-10-01), Cohen
patent: 3543218 (1970-11-01), Archer
patent: 3691327 (1972-09-01), Chesler
patent: 4080029 (1978-03-01), St. Fort
patent: 4085991 (1978-04-01), Marshall et al.
patent: 4136919 (1979-01-01), Howard et al.
patent: 4167658 (1979-09-01), Sherman
patent: 4445738 (1984-05-01), Wiencke
patent: 4479688 (1984-10-01), Jennings
patent: 4482789 (1984-11-01), McVey
patent: 4579410 (1986-04-01), Soloman
patent: 4969833 (1990-11-01), Lindow et al.
Dillingham, Susan "Business Briefing: Putting Power Under Lock and Key", INSIGHT, Aug. 29, 1988.

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