Electrical safety outlet

Details Electrical safety outlet Electrical safety outlet

1999-07-30

2000-08-29

Gellner, Michael L.

Electricity: circuit makers and breakers

Combined with or actuated by connector coupling

Coupling-actuated switch

H01R 3396

Patent

active

061112100

ABSTRACT:
An electrical safety outlet is provided and consists of a plug receptacle having typically at least a large neutral blade-slot and a small voltage blade-slot for receiving a large neutral blade and a small voltage blade of a corresponding and mating multi-prong polarized plug. The invention also applies to older plugs and three-blade plugs where both the neutral and voltage blades are the same width. In one embodiment, insertion of the multi-prong polarized plug depresses the exterior lobes of two separate cams which work together to change the normally open circuit receptacle of the present invention to a closed circuit receptacle. In order for both cams to be activated, the mating multi-prong polarized plug must be inserted almost completely into the plug receptacle before the electrical circuit is closed, thereby supplying current to the plug. The neutral prong must be at least the width of the voltage prong to close the circuit.

REFERENCES:
patent: 2540496 (1951-02-01), Sperrazza
patent: 2751567 (1956-06-01), Bissell et al.
patent: 3699285 (1972-10-01), Leatherman
patent: 3755635 (1973-08-01), McGill
patent: 5095182 (1992-03-01), Thompson
patent: 5347095 (1994-09-01), Zeder
patent: 5513999 (1996-05-01), Fry et al.

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