Electric heating – Metal heating – By arc
Patent
1976-09-14
1978-06-06
Truhe, J. V.
Electric heating
Metal heating
By arc
21913021, 21913771, 358101, B23K 910
Patent
active
040938441
ABSTRACT:
An arc length welding control system in which a welding arc is established between a pair of electrodes. An optical device optically senses the arc and produces signals related to the arc. An optical circuit is responsive to these arc signals for measuring the arc length and produces data signals related to that length. One or more control devices are varied in response to the data signals for controlling the length of the arc to a desired value.
REFERENCES:
patent: 3209121 (1965-09-01), Manz
patent: 3262006 (1966-07-01), Sciaky et al.
patent: 3271558 (1966-09-01), Davis
patent: 3526748 (1970-09-01), Rienks
patent: 3532807 (1970-10-01), Webb
patent: 3602687 (1971-08-01), Pollock
patent: 3781467 (1973-12-01), Soames
patent: 3889055 (1975-06-01), Knight
Alan J. Weissberger, "Microprocessors Simplify Industrial Control," Electronic Design 22, 10/25/1975, pp. 96-99.
Fellure James Erwin
Toth Endre Leslie
Arcair Company
Moyerman Barry
Shaw Clifford C.
Simmons James C.
Truhe J. V.
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