Barrier formed by resistance projection welding
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United States of America Patent
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-
Nov 2, 2004
Grant Date -
Nov 13, 2003
app pub date -
May 7, 2002
filing date -
May 7, 2002
priority date (Note) -
Expired
status (Latency Note)
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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 wither 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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