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. 15, 2003
Filed:
Apr. 05, 2001
Applicant:
Inventors:
Michael Sammons, Appleton, WI (US);
Stephen Ferkel, Appleton, WI (US);
Albert DeCoster, Kaukauna, WI (US);
Mark Kadlec, Shiocton, WI (US);
Assignee:
Illinois Tool Works Inc., Glenview, IL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B23K 9/10 ;
U.S. Cl.
CPC ...
B23K 9/10 ;
Abstract
A method and apparatus for welding is disclosed. It includes a source of power and a controller. An output feedback circuit provides feedback to the controller. The controller includes a comparator that compares the fedback signal to a threshold and/or detects a short on the output. A standby/welding control is responsive to the comparator. Also, an arc end control may be provided that terminates the arc in response to detecting an increase in arc length.