Adhesive bonding and miscellaneous chemical manufacture – Methods – Making electrical conductors of indefinite length
Patent
1982-09-30
1983-08-23
Dawson, Robert A.
Adhesive bonding and miscellaneous chemical manufacture
Methods
Making electrical conductors of indefinite length
156 53, 156185, 310208, 336209, 428216, 4284735, H01B 1308, H01H 8522, H02K 340
Patent
active
044002262
ABSTRACT:
A method of insulating an electromagnetic coil comprises the steps of wrapping first and second overlapping layers of fluorinated ethylene propylene (FEP) resin-coated polyimide tape around distal sections of the end turns of the coil, inserting conforming laminae of FEP resin-impregnated glass cloth between adjacent coil turns, wrapping at least two overlapping layers of FEP resin-coated polyimide tape around the entire coil, heating the coil to at least the resin melting point, applying pressure to compress the tape and laminae and to clamp together the respective turns of the coil, and finally cooling the coil under pressure to allow the resin to resolidify. The resulting product has a thin, uniform coating of impervious electrical insulation characterized by improved heat transfer capability and improved stability at high temperatures.
REFERENCES:
patent: 3369947 (1968-02-01), Mertens et al.
patent: 3662199 (1972-05-01), Anderson et al.
patent: 3674615 (1972-07-01), Dardenne
patent: 3735168 (1973-05-01), Anderson et al.
patent: 3770566 (1973-11-01), Gerow et al.
patent: 3791909 (1974-02-01), McKee
patent: 4265966 (1981-05-01), Schuh
patent: 4304818 (1981-12-01), Hirata et al.
Dawson Robert A.
General Electric Company
Richardson, Jr. Albert S.
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