Electric heating – Metal heating – By arc
Patent
1981-03-17
1985-07-02
Shaw, Clifford C.
Electric heating
Metal heating
By arc
21913021, 21913033, 21913771, 323241, B23K 910
Patent
active
045270457
ABSTRACT:
An arc welder is provided with a phase control circuit by rectifying elements to simplify the construction of the arc welder and improve the performance and operability. The arc welder is further provided with a storage control circuit to enable the retrieval of stored data of the same welding conditions. A union/individual control circuit is provided to eliminate troublesome adjustment of potentiometers.
REFERENCES:
patent: 3213262 (1965-10-01), Marchand
patent: 3735241 (1973-05-01), O'Sullivan
patent: 4093844 (1978-06-01), Fellure et al.
patent: 4163886 (1979-08-01), Omae et al.
patent: 4247751 (1981-01-01), Ashton et al.
patent: 4247752 (1981-01-01), Stringer
patent: 4302655 (1981-11-01), Edling
A. J. Weissberger, "Microprocessors Simplify Industrial Control", Electronic Design 22, 10/25/1975, pp. 96-99.
A. F. Manz, "The One Knob Welder", Welding Journal, 9/1968, pp. 720-725.
Araya Takeshi
Aso Tadashi
Kawamata Kiyoshi
Nakajima Jun
Sugimoto Kinji
Hitachi Seiko Ltd.
Shaw Clifford C.
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