INDUCTION HEATING COIL AND PROCESS FOR FUSION WELD JOINING THERMOPLASTIC COMPOSITE PIPE
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United States of America Patent
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Issued Date -
Jun 5, 2014
app pub date -
Dec 2, 2013
filing date -
Dec 3, 2012
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Abstract
A method and apparatus are provided for pipe joint fusion-welding and other applications, in which a hinged clamshell inductor apparatus is wound from a single contiguous length of Litz wire cable with turns of each half of the clamshell apparatus configured so that their individual magnetic fields are additive to induce uniform longitudinal current flow providing uniform circumferential heating in a carbon steel susceptor tube inserted within pipe ends to be joined.
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