Transformer and A.C. arc welder

Details Transformer and A.C. arc welder Transformer and A.C. arc welder

1995-02-10

1997-08-26

Shaw, Clifford C.

Electric heating

Metal heating

By arc

336 60, 336133, B23K 910

Patent

active

056607490

ABSTRACT:
A transformer includes a stator core, primary coils, secondary coils, and heat radiating plates each of which projects outward from between interior layers of the primary coil and/or secondary coil. An A.C. arc welder includes the transformer therein, with a movable core which can move to and fro between the primary coils and secondary coils and which has different widths in the movable direction. An A.C. arc welder also includes openings for taking in air at a front portion of a case cover and a fan for exhausting air at a rear portion of the case cover.

REFERENCES:
patent: 2133919 (1938-10-01), Fries
patent: 2171643 (1939-09-01), Brenkert
patent: 2230945 (1941-02-01), Hansell
patent: 2840789 (1958-06-01), Miller
patent: 2931967 (1960-10-01), Mills
patent: 2992405 (1961-07-01), Ursch
patent: 3059164 (1962-10-01), Johnson
patent: 3195084 (1965-07-01), Book
patent: 3541487 (1970-11-01), Leonard
patent: 3551863 (1970-12-01), Marton
patent: 3686464 (1972-08-01), Hirst
patent: 3689861 (1972-09-01), Gibson
patent: 3810303 (1974-05-01), Hoell
patent: 3965378 (1976-06-01), Liebe et al.

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