The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 07, 1981
Filed:
Mar. 30, 1979
Applicant:
Inventors:
William J Coughlin, Lancaster, OH (US);
Stephen A Hoffman, Lancaster, OH (US);
Jerry R Hummel, Lancaster, OH (US);
Assignee:
Arcair Company, Lancaster, OH (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B23K / ; B65H / ;
U.S. Cl.
CPC ...
219 70 ; 219 / ; 226187 ;
Abstract
An automatic air-carbon arc cutting and gouging torch having a drive for the elongated electrode consisting of opposed wheels biased toward the electrode for frictional contact to drive the electrode by driving one of the wheels. Each wheel can be adjusted about a pivot point to compensate for curvature of the electrode, changes in diameter, or mis-aligned joints in successive electrodes. The torch includes an improved nozzle to conduct both current and process air to the electrode thus lowering the operating temperature of the torch.