| 发明名称 |
Drilling apparatus, method, and system |
| 摘要 |
A method of supporting a substrate includes inserting a rock bolt into a hole and using the rock bolt to form a groove in a wall of the hole when the rock bolt is inserted therein. The rock bolt is caused to interact with the groove in such a way that the rock bolt is secured in the hole at least in part by the interaction. |
| 申请公布号 |
US8636448(B2) |
申请公布日期 |
2014.01.28 |
| 申请号 |
US20060501826 |
申请日期 |
2006.08.10 |
| 申请人 |
HILL, III JOHN L.;BRENNAN MIKE;SHENHAR JORAM;KOCH DAVID;LOMBARDO MARK;DOLGIN BENJAMIN;GIRALDO LUIS;RAYTHEON COMPANY |
发明人 |
HILL, III JOHN L.;BRENNAN MIKE;SHENHAR JORAM;KOCH DAVID;LOMBARDO MARK;DOLGIN BENJAMIN;GIRALDO LUIS |
| 分类号 |
E21B17/22;E21B10/44;E21D21/00 |
主分类号 |
E21B17/22 |
| 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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