Grounding electrical adapter

Details Grounding electrical adapter Grounding electrical adapter

1976-01-29

1976-10-12

Lake, Roy

Geometrical instruments

339166R, H01R 306

Patent

active

039854124

ABSTRACT:
A grounding electrical adapter for connecting a three-wire plug to a two-wire receptacle connects electrically the grounding blade of the plug to the grounded mounting screw of the receptacle plate, without removing that screw, in a novel manner which not only assures good electrical contact to ground and good mechanical connection to the receptacle but also tends to force a user to make a proper ground connection.

REFERENCES:
patent: 3299390 (1967-01-01), Eckelkamp
patent: 3363215 (1968-01-01), Smith
patent: 3739317 (1973-06-01), Wise
patent: 3775727 (1973-11-01), Wise

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