Expanded – threaded – driven – headed – tool-deformed – or locked-thr – Threaded fastener locked to a discreet structure – Design of fastener or substructure restricts rotation
Reexamination Certificate
2003-11-26
2008-11-18
Miller, Willliam L. (Department: 3677)
Expanded, threaded, driven, headed, tool-deformed, or locked-thr
Threaded fastener locked to a discreet structure
Design of fastener or substructure restricts rotation
C219S098000
Reexamination Certificate
active
07452171
ABSTRACT:
A welding stud apparatus and method of manufacturing a welding stud are disclosed. The welding stud has a weld end constructed to be welded to a workpiece that has at least one recess formed therein. The recess decreases an effective arc area of the weld end to localize a current therethrough and increase the efficiency with which the welding stud can be welded to a workpiece.
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Aufhauser NPL http://www.brazing.com/products/Fluxes/index—weldingflux.asp.
“Electrical Resistance” from Wikipedia, the free encyclopedia. Web page found at http://en.wikipedia.org/wiki/Electrical—resistance, pp. 1-5.
Albrecht Bruce
Moran Sean P.
Nagarajan Sundaram
Ulrich Mark
Illinois Tool Works Inc.
Miller Willliam L.
Ziolkowski Patent Solutions Group, SC
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