Universal adaptable three-prong electrical plug

Details Universal adaptable three-prong electrical plug Universal adaptable three-prong electrical plug

1978-06-28

1980-05-06

Lake, Roy

Geometrical instruments

339 31R, 339176R, 339195A, H01R 306

Patent

active

042014310

ABSTRACT:
A three-prong electrical plug for power tools and other electrical equipment is provided which can be used with either a 3- or 2-wire electrical outlet. One portion of the body of the plug containing the ground prong is detachably connected to another portion of the plug containing the two electric contact blades. When disconnected from one another, the plug body components can be then offset with respect to one another and connected together again in a predetermined second location. In this combination, the ground prong is located to contact the grounded screw of an electrical receptacle on inserting of the two electric blades of the plug into the receptacle, thus automatically grounding the electrical equipment.

REFERENCES:
patent: 3299390 (1967-01-01), Eckelkamp

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