US Patent 7071439 Method for barrier assembly
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Patent abstract
A barrier such as a fence is formed by welding conductive upright members to conductive U-shaped rails by a projection resistance welding process. The rail includes at least one weld-forming region which projects within the rail channel, and may be formed within as a ridge, or as a longitudinally spaced series of nipple-shaped projections. The upright member is transversely positioned within the rail channel in contact with the weld-forming region. A welding current transmitted between the upright member and the rail causes the weld-forming region to at least partially melt and form a weld within the rail channel.
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Patent Inventor Names
Edward L. Gibbs0
Fred L. Givens0
Gary W. Vonnahme0
Date of Patent
July 4, 2006
0Patent Application Number
109268570
Date Filed
August 26, 2004
0Patent Primary Examiner
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US Patent 7071439 Method for barrier assembly
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