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:
May. 10, 2016
Filed:
May. 08, 2006
Badri Narayanan, Mayfield Heights, OH (US);
Patrick T. Soltis, Shaker Heights, OH (US);
Russell Kenneth Myers, Hudson, OH (US);
Eric Stewart, Girard, PA (US);
Badri Narayanan, Mayfield Heights, OH (US);
Patrick T. Soltis, Shaker Heights, OH (US);
Russell Kenneth Myers, Hudson, OH (US);
Eric Stewart, Girard, PA (US);
LINCOLN GLOBAL, INC., City of Industry, CA (US);
Abstract
A welding system and method is disclosed for girth welding high strength materials using a short arc welding process and a self-shielding electrode. The welding system contains a welding apparatus which advances the self-shielding electrode towards a workpiece to be welded and controls the arc length and the operation of the apparatus so that the weld satisfies the requirements for welding at least American Petroleum Institute Grade X-80 line pipe. The system additionally contains a power source with a controller for creating a current pulse introducing energy into the electrode to melt the end of the self-shielding electrode and a low current quiescent metal transfer section following the end of the melting pulse during which the melted electrode short circuits against the workpiece.