Roger M Brock

US Patent:

49351761, Jun 19, 1990

Filed:

Dec 9, 1988

Appl. No.:

7/282135

Inventors:

Roger M. Brock - Carrollton GA
Paul E. Large - Carrollton GA
Larry J. Thompson - Carrollton GA

Assignee:

Southwire Company - Carrollton GA

International Classification:

B29C 4706
B29C 4792

US Classification:

264 402

Abstract:

The present invention incorporates a conductor contact apparatus, a conductor defect detector, and a relay or equivalent added to the emergency stop circuit of a conductor insulation extruder apparatus in order to detect conductor defects and shut-down the extrusion apparatus before the conductor defect can cause the extruder to become blocked, interrupting normal production operations. The defect detector is especially adapted to detect variations in the cross-sectional area (or apparent cross-sectional area) of a conductor being insulated.