Portable electric welder

Details Portable electric welder Portable electric welder

1976-12-30

1979-02-27

Truhe, J. V.

Electric heating

Metal heating

By arc

361384, B23K 900

Patent

active

041420918

ABSTRACT:
An electric welding apparatus designed for light arc welding work and specifically made of small size and lightweight for one man portability. To accomplish these functions, the welder uses a circuitry which converts standard 117 volt AC line power to low voltage DC current and uses a control circuit incorporating a triac as a phase control on the primary side of the transformer. The apparatus is enclosed in a casing for easy transportation by one person and employs a novel spacing of elements therein for cooling by forced air circulation.

REFERENCES:
patent: 3059164 (1962-10-01), Johnson
patent: 3308340 (1967-03-01), Gille et al.
patent: 3493848 (1970-02-01), Galloway
patent: 3567902 (1971-03-01), Stearns et al.
patent: 3648437 (1972-03-01), Bridges
patent: 4027206 (1977-05-01), Lee
D. N. Lapedes, Ed., McGraw-Hill Dictionary of Scientific & Technical Terms, 1974, p. 1507.

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