DUALARC

Weld heads, each comprising a carriage assembly, a torch assembly, cables, wires, electric motors, and gearing mechanisms; weld heads as components of welding machines; electric arc welding machines, electric welding machines, gas-operated welding machines, computer controlled gas welding machines; computer controlled electric arc welding machines; weld heads, each comprising a carriage assembly, cables, wires, electric motors, gearing mechanisms, printed circuit assemblies, weld heads for GTAW (Gas Tungsten Arc Welding) and for GMAW (Gas Metal Arc Welding), and replacement structural parts for the foregoing

Electric arc welders; electronic controllers and computer software for welding apparatus, and replacement parts for the foregoing, namely, cable harnesses, power supplies, cooling fans, keyboards, Liquid Crystal Displays (LCDs), control buttons, control switches, and printed circuit boards, namely, Automatic Voltage Control (AVC) printed circuit boards, back plane printed circuit boards, host Input/Output (I/O) printed circuit boards, weld power current printed circuit boards, oscillation/steering printed circuit boards, Single Board Computer (SBC) printed circuit boards, and travel and wire filler printed circuit boards