Locking device for an electrical plug

Details Locking device for an electrical plug Locking device for an electrical plug

1985-01-11

1986-01-07

Weidenfeld, Gil

Geometrical instruments

H01R 1344

Patent

active

045630488

ABSTRACT:
A locking device for an electrical plug includes a lock having a shackle sized to fit through the prong apertures of the plug and an electrically nonconductive spacer disposed between the prongs through which the shackle passes.

REFERENCES:
patent: 2643787 (1953-06-01), Rockman
patent: 2654073 (1953-09-01), Katz
patent: 2664734 (1954-01-01), McEneaney
patent: 2733416 (1956-01-01), Evalt
patent: 2955272 (1960-10-01), Gallardo
patent: 3345600 (1967-10-01), Scherer
patent: 3416123 (1968-12-01), Husebo
patent: 3539968 (1970-11-01), Tunstall et al.
patent: 3543544 (1970-12-01), Efston
patent: 3781913 (1973-12-01), Liburdi
patent: 4025140 (1977-05-01), Matys
patent: 4407554 (1983-10-01), Drall
patent: 4413488 (1983-11-01), Harmison, Jr.
"Short Cut and Tips", p. 185, Popular Science, Aug. 1958, --Lock Kidproofs Power Tool.

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