Plastic and nonmetallic article shaping or treating: processes – With measuring – testing – or inspecting
Patent
1988-12-09
1990-06-19
Thurlow, Jeffery
Plastic and nonmetallic article shaping or treating: processes
With measuring, testing, or inspecting
264 407, 264174, 324515, 324543, 425113, 425136, 425141, 425162, B29C 4706, B29C 4792
Patent
active
049351761
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.
REFERENCES:
patent: 3841810 (1974-10-01), Robinson et al.
patent: 4260566 (1981-04-01), Brouwer et al.
patent: 4340554 (1982-07-01), Bardwell
patent: 4387336 (1983-06-01), Joy et al.
Brock Roger M.
Large, Jr. Paul E.
Thompson Larry J.
Martin Terrence
Myers, Jr. George C.
Southwire Company
Tentoni Leo B.
Thurlow Jeffery
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