Electricity: conductors and insulators – Covers or face plates – With closure for face plate opening
Patent
1985-04-08
1986-04-22
Grimley, A. T.
Electricity: conductors and insulators
Covers or face plates
With closure for face plate opening
174 66, 339 36, 339 37, 339 41, 220242, H02G 314
Patent
active
045844305
ABSTRACT:
A safety electrical receptacle cover plate for dual socket wall receptacles has rotatable shutters adapted for receiving the prongs of a plug, but is normally biased by non-conducting resilient members to close registery with the slots of the socket members. The shutters are received in recesses formed in the rear of the plate, have central portions disposed through openings extending through the plate, and have stepped outer portions journalled in the recesses. A pair of oppositely disposed arms are formed on the outer portions and carry members about which resilient bands are disposed for urging the shutters out of the positions of registery. The periphery of the cover plate has a lip about which a resiliently compressible material is disposed so that when the plate is secured to a receptacle the plate is adjustably located relative to the wall to permit the shutters to abut the face of the sockets thereby ensuring proper electrical contact of the plug prongs with the sockets.
REFERENCES:
patent: 1989693 (1935-02-01), Hubbell, Jr.
patent: 2507654 (1950-05-01), Stubbs
patent: 2515003 (1950-07-01), Hamilton
patent: 2641627 (1953-06-01), Lewis
patent: 3201740 (1965-08-01), Rubens
Grimley A. T.
Lau Jane
Ruderman Alan
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