Braided cord with conductive foil
AssigneeTower Manufacturing Corporation
InventorsLouis J. Shatkin, Chepur P. Rao, Victor V. Aromin
Life of this patent
Estimating the term…
Abstract
A braided cord having a conductive foil made of aluminum or copper or similar good electrically conductive materials. The foil is wrapped around the line (hot) and neutral wires of a cord. Over the foil is the braid made of copper strands.
Claims9
A braided cord having a hot line, a neutral line and a ground wire surrounded by an outer jacket, wherein the hot line and neutral line each comprise a copper conductor wrapped with insulation, and further wherein a conductive foil layer and a copper braid composed of copper strands is individually wrapped around the insulation of each of said hot line and said neutral line.
A braided cord having a hot line, a neutral line and a ground wire surrounded by an outer jacket, wherein the hot line and neutral line each comprise a copper conductor wrapped with insulation, and further wherein a conductive foil layer composed of a good electrically conductive material and a copper braid composed of copper strands is individually wrapped around the insulation of each of said hot line and said neutral line, wherein said copper braid provides coverage, and wherein said coverage may be as low as 5% due to the presence of said foil layer.
A method for detecting leakage current and interruption in an electrical cord having a hot line, a neutral line and a ground wire surrounded by a shield, said method comprising the steps of:
- providing a braided cord having said hot line, said neutral line and said ground wire surrounded by an outer jacket, wherein the hot line and neutral line each comprise a copper conductor wrapped with insulation, and further wherein a conductive foil layer and a copper braid composed of copper strands is individually wrapped around the insulation of each of said hot line and said neutral line;
- separately detecting leakage current from said hot line to said shield and from said neutral line to said shield;
- and
- disabling said electrical cord in the event of said detected leakage current.
Dependencies are inferred from the claim text.