| 发明名称 |
APPARATUS FOR DRILLING LARGE BORE HOLES IN ROCK AND SOIL |
| 摘要 |
The present invention is directed to an apparatus for drilling large bore holes in rock and soil. The apparatus of the present invention comprises a fluid driven motor, a bit receptacle, and a boring bit mounted in the bit receptacle.
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| 申请公布号 |
WO0225061(A1) |
申请公布日期 |
2002.03.28 |
| 申请号 |
WO2001US28273 |
申请日期 |
2001.09.10 |
| 申请人 |
INTEDYNE, L.L.C. |
发明人 |
LE, TUONG, T.;VON GYNZ-REKOWSKI, GUNTHER;WADE, WILLIAM, B. |
| 分类号 |
E21B4/02;E21B7/06;(IPC1-7):E21B47/00 |
主分类号 |
E21B4/02 |
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