发明名称 |
UNDERGROUND DRILLING APPARATUS |
摘要 |
A drilling apparatus is adapted for connection to a drill string such that the drill string rotates the drilling apparatus in a rotational cutting motion. The drilling apparatus includes a sonde housing having a distal end and a proximal end. The sonde housing includes a top platform positioned adjacent the distal end of the sonde housing and further includes a tongue positioned on the top platform. The drilling apparatus further includes a rotary cutting tool mounted to the distal end of the sonde housing. |
申请公布号 |
US2012118640(A1) |
申请公布日期 |
2012.05.17 |
申请号 |
US201113247327 |
申请日期 |
2011.09.28 |
申请人 |
RUNQUIST RANDY R.;HOELTING KEITH A. |
发明人 |
RUNQUIST RANDY R.;HOELTING KEITH A. |
分类号 |
E21B7/00;E21B10/00 |
主分类号 |
E21B7/00 |
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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