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. 05, 2016
Filed:
Apr. 07, 2008
Hieyoung W. OH, Bowdoin, ME (US);
Adam H. Willwerth, North Yarmouth, ME (US);
Jeffrey W. Richardson, Otisfield, ME (US);
Kenneth S. Dobson, Chicago, IL (US);
Hieyoung W. Oh, Bowdoin, ME (US);
Adam H. Willwerth, North Yarmouth, ME (US);
Jeffrey W. Richardson, Otisfield, ME (US);
Kenneth S. Dobson, Chicago, IL (US);
Illinois Tool Works Inc., Glenview, IL (US);
Abstract
A contact tip is provided for wire welding applications. The contact tip includes one or more conductive brushes fitted to a conductive contact tip body. Fibers of the brush extend into a passageway traversed by welding wire in operation. Electrical current is transmitted to the brush assembly and through the brush fibers to the welding wire. The fibers may transmit the current directly and also may enhance contact of the welding wire with one or more walls of the contact tip. Improved electrical contact and weld quality are obtained.