Coupling for an electric cable

Details Coupling for an electric cable Coupling for an electric cable

1979-08-03

1981-10-06

McQuade, John

Geometrical instruments

339122R, H01R 13585

Patent

active

042931789

ABSTRACT:
A coupling for an electric cable for connecting the cable to the wall of an electric outlet box so that the cable cannot be pulled free of the box, the cable wires being connected to the electrical unit in the box. A modified form of the device shows the coupling connecting the cable to an electric socket and again the cable cannot be pulled free of the socket. The coupling includes a cable receiving sleeve in which a plurality of longitudinally wedge-shaped grooves are provided. Wedges are inserted into the grooves and they are provided with teeth on their inner surfaces for gripping the cable. The inclination of the teeth is such as to grip the cable and prevent its withdrawal from the coupling.

REFERENCES:
patent: Re17880 (1930-11-01), Stoeltzlen
patent: 2463144 (1949-03-01), Buchanan
patent: 2896496 (1959-07-01), Jansen

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