Self-regulating electrical heating cable
AssigneeThermon, Inc.
InventorByong Jun Kim
Life of this patent
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Abstract
A self-regulating electrical heating cable includes two spaced-apart electrically resistive wires extending along a length of the heating cable to generate heat from an electrical current conducted by the wires and a heating element extending along the length of the heating cable and electrically coupled to the wires to define a heating core. The heating element includes a polymer material and a thermally conductive material disposed within the polymer material to render the heating element thermally conductive to transfer the heat generated by the wires. The polymer material exhibits a positive temperature coefficient (PTC) characteristic and includes one or more PFAS-free, non-olefinic amorphous polymers, one or more PFAS-free, non-olefinic semi-crystalline polymers, or any combination thereof.
Claims26
A self-regulating electrical heating cable comprising:
- two spaced-apart electrically resistive wires extending along a length of the heating cable to generate heat from an electrical current conducted by the wires;
- and
- a heating element extending along the length of the heating cable and electrically coupled to the wires to define a heating core, wherein the heating element comprises:
- a polymer material exhibiting a positive temperature coefficient (PTC) characteristic and comprising one or more PFAS-free, non-olefinic amorphous polymers, one or more PFAS-free, non-olefinic semi-crystalline polymers, or any combination thereof;
- and
- a thermally conductive material disposed within the polymer material to render the heating element thermally conductive to transfer the heat generated by the wires.
Dependencies are inferred from the claim text.