Metal fusion bonding – Seam backup means
Reexamination Certificate
2007-12-13
2009-12-15
Ward, Jessica L. (Department: 1793)
Metal fusion bonding
Seam backup means
C228S226000, C219S160000
Reexamination Certificate
active
07631797
ABSTRACT:
A magnetic based welding tool having an adjustment knob, a pivot arm, and a copper alloy pad, designed to assist with welding holes, for example, in sheet metal, that are to be welded closed with a MIG or TIG welder, by providing a backup to the hole, to keep the welding material from coming through the hole in excess amounts, and a magnetic base to hold the tool onto a ferrous metal panel, such as steel, with an adjustable arm to keep the copper alloy pad away from the magnetic base and in firm contact with the surface to be welded.
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Eastwood Co., 4 and 8 Inch Magnetic Copper Butt-Weld Backer Set., <http://www.eastwoodco.com/shopping/product/detailmain.jsp?jProductID=21231>; Dec. 13, 2007.
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Dueston Mfg. Co.
Ward Jessica L.
Yoon Kevin E
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