Electrical plug locking device

Details Electrical plug locking device Electrical plug locking device

1993-08-20

1994-07-19

Pirlot, David L.

Electrical connectors

With unauthorized connection preventer, e.g., key or...

Prong cover

439139, 439304, 70 57, H01R 1340

Patent

active

053303610

ABSTRACT:
A two prong plug locking device having opposed top and bottom hemi-spherical housing elements enclosing an intermediate guide lever and guide plate. A keyed tumbler lock turns the intermediate guide lever. Such guide lever is attached to a flexible cable that moves within a channel in the top and bottom housing. A pair of plug prongs inserted into the bottom housing through multiple apertures are engaged by the cable and locked within the bottom housing. By turning the tumbler lock, the cable is retracted from the plug prongs and the plug is released.

REFERENCES:
patent: 2733416 (1956-01-01), Evalt
patent: 4445738 (1984-05-01), Wiencke
patent: 4566297 (1986-01-01), Hawley
patent: 4957446 (1990-09-01), Belsky
patent: 5055057 (1991-10-01), Boyer
patent: 5169326 (1992-12-01), Werner
patent: 5171155 (1992-12-01), Mendoza

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