Electric heating – Metal heating – By arc
Reexamination Certificate
2006-09-11
2010-06-29
Ward, Jessica L (Department: 1793)
Electric heating
Metal heating
By arc
C219S136000
Reexamination Certificate
active
07745757
ABSTRACT:
A welding apparatus is provided for carrying a welding gun across or past a surface for making welds. The apparatus may include one or more rolling components, such as wheels for example, that do not substantially plastically deform as a result of contacting or being in close proximity to recently completed welds or preheated joints and provide adequate traction to move the apparatus across or past the surface. A portion of the contact surface of the rolling component may be configured with a given surface roughness to provide sufficient traction.
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Enyedy Edward A.
Klein Jeff
Calfee Halter & Griswold LLP
Lincoln Global Inc.
Mehta Megha
Ward Jessica L
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