Welding torch oscillator control system

Details Welding torch oscillator control system Welding torch oscillator control system

1975-06-30

1977-07-05

Reynolds, Bruce A.

Electric heating

Metal heating

By arc

318282, B23K 910

Patent

active

040341844

ABSTRACT:
An oscillator control system for reciprocating a welding torch comprising a drive motor and an oscillator circuit for alternately varying the direction of rotation of the drive motor. The oscillator circuit includes DC reference means, means responsive to the rotation of the motor for providing an output signal which varies in DC potential from one polarity to the opposite polarity, means which responds to the difference between the reference signal and varying DC signal and switching means which reverses the polarity of the reference signal when the difference signal reverses polarity.

REFERENCES:
patent: 2973481 (1961-02-01), Frye
patent: 2978622 (1961-04-01), Wittke
patent: 3230341 (1966-01-01), Blackburn
patent: 3400315 (1968-09-01), Doucette
patent: 3509436 (1970-04-01), Hovance
patent: 3586943 (1971-06-01), Gonzalez
patent: 3633088 (1972-01-01), Kupersmith
patent: 3646309 (1972-02-01), Smith, Jr. et al.
patent: 3783222 (1974-01-01), Gwin et al.
patent: 3795853 (1974-03-01), Whitehouse

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