Foldable electric cord arrangement and manufacture
OwnerJames C. Wanginventor
Life of this patent
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Abstract
The present invention relates to an elongated, foldable cable for the communication of electrical power from a source to an electrically powered device. The cable comprises an elongated electrical conductor, a first insulating material arranged about a first linear segment of the elongated electrical conductor and a second insulating material arranged about a second linear segment of the elongated electrical conductor. The first and second insulating materials are of different flexibility from one another whereby to enable folding on the materials of greater flexibility.
Claims10
An elongated cable for the communication of electrical power from a source to an electrically powered device, said cable comprising:
- an elongated electrical conductor;
- a first segment of insulating material arranged about a linear segment of said elongated electrical conductor;
- a second segment of insulating material arranged about a second linear segment of said elongated electrical conductor, wherein said first and second insulating materials are different from one another, one of said segments of insulating material being less stiff than the other segment of insulating material.
A method of manufacturing an insulated electrical power cable an insulator extruded therearound of alternating flexibility along its length, said method comprising the steps of arranging an extrusion head to receive a conductive wire therethrough;
- attaching a first and a second insulating material extruder in communication with said head, said first and second insulating material extruders each extruding insulating material of different flexibility from one another when said insulating material is cured;
- directing said conductive wire through said head;
- and
- extruding said first and second insulating materials to enclose alternating segments of the length of said conductive wire as said conductive wire is drawn from said head.
Dependencies are inferred from the claim text.