Invention Grant
- Patent Title: Method of manufacture of electrical wire and cable having a reduced coefficient of friction and required pulling force
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Application No.: US16998949Application Date: 2020-08-20
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Publication No.: US10943713B1Publication Date: 2021-03-09
- Inventor: William T. Bigbee, Jr. , Stephen S. Griffin
- Applicant: Encore Wire Corporation
- Applicant Address: US TX McKinney
- Assignee: Encore Wire Corporation
- Current Assignee: Encore Wire Corporation
- Current Assignee Address: US TX McKinney
- Agency: Warren Rhoades LLP
- Main IPC: H01B13/14
- IPC: H01B13/14 ; B29C48/88 ; H01B7/18 ; B29C48/28 ; H01B7/02 ; B29C48/00 ; B29C48/21 ; B29C48/154 ; H01B13/00 ; B29K27/06 ; B29K105/20 ; B29K77/00 ; B29L31/34 ; B29K509/02 ; B29K105/16 ; B29K105/00

Abstract:
A process for manufacturing finished wire and cable having reduced coefficient of friction and pulling force during installation, includes providing a payoff reel containing at least one internal conductor wire; supplying the at least one internal conductor wire from the reel to at least one extruder; providing the least one extruder, wherein the at least one extruder applies an insulating material and a polymerized jacket composition over the at least one internal conductor wire, wherein the polymerized jacket composition comprises a predetermined amount by weight of nylon; and at least 3% by weight of a silica providing a cooling device for lowering the temperature of the extruded insulating material and the polymerized jacket composition and cooling the insulating material and the polymerized jacket composition in the cooling device; and, reeling onto a storage reel the finished, cooled, wire and cable for storage and distribution.
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