Plastic article or earthenware shaping or treating: apparatus – Means applying electrical or wave energy directly to work – Electro-static or inductive field
Patent
1975-05-09
1977-08-23
Husar, Francis S.
Plastic article or earthenware shaping or treating: apparatus
Means applying electrical or wave energy directly to work
Electro-static or inductive field
219 1061, 219 1079, 264 25, 425113, 425404, 426445, B29C 2500
Patent
active
040437221
ABSTRACT:
An apparatus for and method of heat curing elastomeric electrical insulation on a central electrical conductor of an electrical cable is provided and the apparatus includes an outer housing which is adapted to contain means for curing the exterior portion of the insulation from its outer portion inwardly and an electrical induction coil for curing the insulation from its inner portion outwardly. The coil is supported concentrically within the housing with the coil being adapted to receive the conductor therethrough with its insulation thereon and the coil serves to heat the conductor which in turn transmits heat to the inner portion of the insulation to provide the heat curing thereof from the inner portion radially outwardly. A magnetic flux shield is provided between the housing and the coil and serves to provide a path of least resistance for the lines of magnetic flux generated by the coil to thereby assure efficient operation of the induction coil yet without detrimental heating of the outer housing.
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patent: 3642532 (1972-02-01), Greene
Baker John E.
Shackford Charles C.
Husar Francis S.
McQuade John
Reynolds Metals Company
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