Transformer module for a welder

Details Transformer module for a welder Transformer module for a welder

2006-02-14

2006-02-14

Shaw, Clifford C. (Department: 1725)

Electric heating

Metal heating

By arc

C336S186000

Reexamination Certificate

active

06998573

ABSTRACT:
An electric arc welder comprising a high switching frequency inverter for driving the primary of an output transformer where the output transformer has a plurality of modules forming the secondary windings of the transformer and each of the modules comprises a first coaxial set of concentric, telescoped tubes separated by a tubular insulator, a second coaxial set of concentric, telescoped conductive tubes separated by a tubular insulator wherein the sets each have an elongated central passage for accommodating the primary and a conductor connecting the tubes into a series circuit. These modules form a transformer for such welder.

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International Search Report corresponding to European Application No. EP 04 00 8680.
Australian Examiner's First Report dated Dec. 15, 2004.

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