Wire temperature controller

Details Wire temperature controller Wire temperature controller

1984-02-21

1985-03-19

Paschall, M. H.

Electric heating

Heating devices

With power supply and voltage or current regulation or...

323235, 219486, 219501, 219494, 307 39, H05B 102

Patent

active

045061467

ABSTRACT:
A method and apparatus are described for controlling the temperature of a heated wire, such as on a wire sealer for plastic film. Temperature control is based upon measurements of changes in the resistance of the wire as it is heated, through bridge circuit and microprocessor techniques.

REFERENCES:
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patent: 3649853 (1972-03-01), Kerchner
patent: 3718924 (1973-02-01), Trubert et al.
patent: 3752956 (1973-08-01), Cahill
patent: 3789190 (1974-01-01), Orosy et al.
patent: 3946200 (1976-03-01), Juodikis
patent: 3947656 (1976-03-01), Lodi
patent: 4010412 (1977-03-01), Forman
patent: 4122719 (1978-10-01), Carlson et al.
patent: 4380698 (1983-04-01), Butts

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