Apparatus for isolating a cord section from tension

Winding – tensioning – or guiding – Coil holder or support – Spool or core

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Details

24 713, 24129A, 439369, 439457, B65H 7536, H01R 1362

Patent

active

052558665

ABSTRACT:
A stair relief device is positioned around connecting plugs, splice or the like to relieve the contained plugs, splice or the like from any tension which is in the cord. It consists of a rigid hollow cylinder having two rigid circular flanges, extending outwardly at opposite ends of the cylinder. Each of these flanges has positioned therein two slots of appropriate size and shape to permit an electrical cord to pass through the slot. On each flange the two slots are positioned one hundred and eighty degrees (180.degree.) around the flange from each other. The slots in each flange are aligned directly opposite the slots in the other flange. The section of the cord to be protected is positioned within the cylindrical portion of the device. The cord at either end of the device is then positioned back through the slots in the flanges and turned at least one hundred and eighty degrees (180.degree.) around the outer portion of the cylinder and through the corresponding slots in the other side of the flange, thereby transmitting the tension on the cords through the cylindrical body rather than through the section to be protected.

REFERENCES:
patent: 571761 (1896-11-01), Gulliford
patent: 2231001 (1941-02-01), Engstrom
patent: 2587707 (1952-03-01), Dever
patent: 3249318 (1966-05-01), Wormser
patent: 3460779 (1969-08-01), Peasley
patent: 3806992 (1974-04-01), Reimer
patent: 4183603 (1980-01-01), Donarummo
patent: 4884979 (1989-12-01), Budner

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