Electrical connectors – With coupling movement-actuating means or retaining means in... – Coupling part with relatively pivotable concentric...
Patent
1992-05-27
1993-05-18
Schwartz, Larry I.
Electrical connectors
With coupling movement-actuating means or retaining means in...
Coupling part with relatively pivotable concentric...
439536, H01R 438
Patent
active
052115704
ABSTRACT:
A cord connection system includes a male plug on an electrical cord having conventional blades projecting therefrom. A female receptacle has conventional blade terminals for connection with the plug, and includes a locking ring rotatably mounted on a receptacle body, the ring being interiorly threaded to engage exterior threads on the body of the male plug. A flange on the forward end of the receptacle retains the ring on the receptacle so that the plug and receptacle are locked together when the locking ring is engaged on the plug thread. A receptacle end piece is provided which maintains the locking ring in position on the end of an electrical cord, in one embodiment of the invention. In a second embodiment of the invention the receptacle end piece is mounted on the rearward surface of a wall plate such that the receptacle projects through the wall plate with the locking ring and blade terminals projecting forwardly of the wall plate. In this fashion, the threaded male plug may be locked to a receptacle on a wall plate on a conventional wall outlet box.
REFERENCES:
patent: 3390371 (1968-06-01), Kramer
patent: 3824526 (1974-07-01), Glover
patent: 4066314 (1978-01-01), Williams
patent: 4820185 (1989-04-01), Moulin
patent: 5035646 (1991-07-01), Ehrenfels et al.
patent: 5087209 (1992-02-01), Faucher
Nguyen Khiem
Schwartz Larry I.
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