초록 ▼

A hand carried, or hand-held, portable, arc welding apparatus. Designed to provide a variable square waveform welding current output. Powered by sealed high discharge rate, gel-cell, rechargeable batteries that, are sealed for safety. A new form of welding technology is provided for saving energy an

A hand carried, or hand-held, portable, arc welding apparatus. Designed to provide a variable square waveform welding current output. Powered by sealed high discharge rate, gel-cell, rechargeable batteries that, are sealed for safety. A new form of welding technology is provided for saving energy and making automated tack welds. A new self-diagnostic feature is provided for safe operation. A remote control option is provided as well as a way to control the heating and cooling of the weld. Duty cycle control and frequency control are provided for efficient control of the welding process.

대표청구항 ▼

[ I claim:] [1.] An arc welding apparatus comprising:a battery powered current source;a rod holder coupled to the current source;a duty cycle controller controlling the duty cycle of a pulsed current flowing from the current source and into the rod holder;a pulse weld controller controlling the flow

[ I claim:] [1.] An arc welding apparatus comprising:a battery powered current source;a rod holder coupled to the current source;a duty cycle controller controlling the duty cycle of a pulsed current flowing from the current source and into the rod holder;a pulse weld controller controlling the flow of the pulsed current to the rod holder and causing the pulsed current to turn on and off at a fixed tack weld frequency;the tack weld frequency and duty cycle being independent of each other.