Geometrical instruments
Patent
1986-05-20
1987-05-05
Weidenfeld, Gil
Geometrical instruments
174 67, 339 39, 339 75P, 339 82, 339106, H01R 13639
Patent
active
046626972
ABSTRACT:
Removal of an electrical plug from one socket of a multi-socket outlet is resisted by a device that includes a retainer portion having a least one prong that is inserted into a second socket of the outlet and cooperates with the socket to resist removal of the retainer portion, and an arm portion that is connected to the retainer portion and obstructs removal of the plug from the one socket. The arm portion is rigid enough to prevent removal of the plug except by also removing the retainer portion.
REFERENCES:
patent: 2659059 (1953-11-01), Johnson
patent: 2932811 (1960-04-01), Abraham et al.
patent: 3538484 (1970-11-01), Passafiume
patent: 3811104 (1974-05-01), Caldwell
patent: 4105274 (1977-04-01), Casey
patent: 4424407 (1981-11-01), Barbic
patent: 4530555 (1983-06-01), South
Bishop Steven C.
Weidenfeld Gil
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