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US 4,131,690 AGranted
Method of powder coating an insulated electrical conductor
AssigneeNorthern Electric Company Limited
InventorsJohn A. Jukes, Philip A. McGettigan
Life of this patent
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Abstract
A method of producing an insulated electrical conductor, in which a wire conductor is coated with an inner layer of heat resistant material and covered with electrostatically deposited powdered polymeric material which is fused by heat to form an outer layer of insulation. An insulated electrical conductor produced by this method comprises a core carrying an inner coating of heat resistant material and an outer coating of fused polymeric material.
Claims11
A method of producing an insulated electrical conductor comprising the steps of:
- electrostatically depositing a powdered polymeric material onto a wire conductor coated with an annular sheath of electrically insulating heat resistant fibrous material.
- applying heat externally to the conductor to fuse the polymeric material to form an uniform outer layer of polymeric material and
- cooling the polymer coated conductor.
Dependencies are inferred from the claim text.