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. 26, 2005
Filed:
Sep. 07, 2001
David Wayne Gandy, Concord, NC (US);
James William Hales, Harrison, TN (US);
William Frederick Newell, Jr., Mooresville, NC (US);
Roger Allen Swain, Harrisburg, NC (US);
James Franklin Turner, Signal Mountain, TN (US);
Ramaswamy Viswanathan, Saratoga, CA (US);
David Wayne Gandy, Concord, NC (US);
James William Hales, Harrison, TN (US);
William Frederick Newell, Jr., Mooresville, NC (US);
Roger Allen Swain, Harrisburg, NC (US);
James Franklin Turner, Signal Mountain, TN (US);
Ramaswamy Viswanathan, Saratoga, CA (US);
Electric Power Research Institute, Inc., Palo Alto, CA (US);
Abstract
This invention relates to a method and apparatus for controlling the composition of a weld. More particularly it relates to welding using an electric circuit, thereby creating a weld puddle, and adding at least one filler that is electrically independent from the electric circuit to the weld puddle at a controllable rate to obtain a target weld composition. The filler can be added to the extent limited by practical weld puddle geometry and, thus, the method and apparatus also facilitate increased weld deposition rates.