发明名称 |
Tensionable cable bolt |
摘要 |
A tensionable mine roof cable bolt having a resin grouted upper portion and a mechanically anchored lower portion. The lower portion includes a shaft which is swaged to the cable and accepts a mechanical anchor. The cable bolt is rotated during installation in a mine roof bore hole to mix resin and simultaneously engage the mechanical anchor with the rock. A drivehead press fitted onto the lower end of the cable fails upon tensioning of the bolt to a predetermined load.
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申请公布号 |
US6074134(A) |
申请公布日期 |
2000.06.13 |
申请号 |
US19980019643 |
申请日期 |
1998.02.06 |
申请人 |
JENNMAR CORPORATION |
发明人 |
STANKUS, JOHN C.;TAYLOR, KENDAL L. |
分类号 |
E21D20/02;E21D21/00;E21D21/02;F16B13/06;F16B31/02;(IPC1-7):E21D20/02 |
主分类号 |
E21D20/02 |
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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