Wire feed speed adjustable welding torch

Details Wire feed speed adjustable welding torch Wire feed speed adjustable welding torch

2005-01-11

2005-01-11

Shaw, Clifford C. (Department: 1725)

Electric heating

Metal heating

Nonatmospheric environment at hot spot

C219S136000

Reexamination Certificate

active

06841752

ABSTRACT:
An arc welding torch accessory providing automatic material feed to an existing TIG torch, which has user adjustable wire feed speed without discontinuing use of the device. The welding torch device is employed in gas delivery arc welding devices which use hyperbaric welding techniques to evacuate air or oxygen from the weld area while the weld is being processed. The disclosure describes a system for adopting an automatic wire feed system to an existing TIG welding torch head. The device allows automatic delivery of wire material, commonly fed by hand in arc welding, by presenting the wire to be fed automatically while allowing the arc welding torch operator to adjust the quantity of material feed while actually in the process of welding. The apparatus provides for user speed adjustable controls to be operated by a foot pedal device or similar means which would allow the operator of the welding torch to continue the operation during the adjustment process and eliminates the need for the operator to cease the welding operation while adjustment of the material feed delivery speed is undertaken.

REFERENCES:
patent: 2571684 (1951-10-01), Craven
patent: 2710902 (1955-06-01), Pilia
patent: 2723331 (1955-11-01), Tyrner
patent: 2778099 (1957-01-01), Anderson et al.
patent: 2833912 (1958-05-01), Royer
patent: 3609291 (1971-09-01), Pilia et al.
patent: 3940586 (1976-02-01), Stearns et al.
patent: 4357515 (1982-11-01), Kiefer et al.
patent: 5789717 (1998-08-01), Imaizumi et al.
patent: 6225596 (2001-05-01), Chandler et al.

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