Metal working – Method of mechanical manufacture – Structural member making
Reexamination Certificate
2007-04-03
2007-04-03
Jimenez, Marc (Department: 3726)
Metal working
Method of mechanical manufacture
Structural member making
C029S897350
Reexamination Certificate
active
11175506
ABSTRACT:
A two step system or stage is provided to manufacturer a bumper of “B” shape cross section including a roll forming-welding stage where a straight cross member of a length to mount on the front or rear of various models of automobiles and the bending stage where any curvature or sweep is introduced into the cross member as required by the design of the automobile. The roll forming welding stage include the spot or tack welding of the front wall to the web followed immediately by welding together without any gaps therebetween the abutting longitudinal edges utilizing a high frequency welder. Thus, the “B” shaped cross section of the bumper may be used to make different bumpers of various lengths and curvatures.
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Dykema Gossett PLLC
Jimenez Marc
Trim Trends Co., LLC
LandOfFree
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