Electricity: conductors and insulators – Conduits – cables or conductors – Single duct conduits
Patent
1981-03-06
1983-02-22
Grimley, A. T.
Electricity: conductors and insulators
Conduits, cables or conductors
Single duct conduits
277208, 277112, H02G 318
Patent
active
043750117
ABSTRACT:
A cable connector comprises a screw socket, a screw nut, a packing within the screw nut and an anti-rotation bushing between the packing and the screw nut. The screw nut, packing and bushing are provided with conical portions respectively which have the same angle of taper and substantially the same axial length. Between a cylindrical portion of the packing and the threaded portion of the screw nut an annular recess is formed into which a cylindrical rim of the bushing protrudes.
The screw nut can easily be screwed on the socket only by hand because of the low friction effect between the bushing and the screw nut, thereby deforming the packing whereby a fluid-tight seal between the socket and the cable is gained and the cable is secured against twisting during the screw-operation and secured against axial movement at the end of said screw-operation.
REFERENCES:
patent: 2021745 (1935-11-01), Pfefferle et al.
patent: 2941025 (1960-06-01), Wayman
patent: 3567843 (1971-03-01), Collins et al.
Grimley A. T.
Tone D. A.
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