发明名称 |
Barrier formed by resistance projection welding |
摘要 |
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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申请公布号 |
US2005023515(A1) |
申请公布日期 |
2005.02.03 |
申请号 |
US20040926888 |
申请日期 |
2004.08.26 |
申请人 |
GIBBS EDWARD L.;GIVENS FRED L.;VONNAHME GARY W. |
发明人 |
GIBBS EDWARD L.;GIVENS FRED L.;VONNAHME GARY W. |
分类号 |
B21F27/10;E04H17/14;(IPC1-7):E04H17/14 |
主分类号 |
B21F27/10 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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