发明名称 |
Directional auger attachment |
摘要 |
The present invention is directed to an auger attachment which is mounted on the stick of a backhoe which provides directional capabilities to the auger. More specifically, the auger attachment includes an outer body, an inner telescoping body and a piston within the inner body which provides all the lift to the auger.
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申请公布号 |
US5592993(A) |
申请公布日期 |
1997.01.14 |
申请号 |
US19950431106 |
申请日期 |
1995.04.28 |
申请人 |
TTI TRENCHLESS TECHNOLOGIES, INC. |
发明人 |
PARISH, II, ROBERT O.;REBER, CLEVE C. |
分类号 |
E21B15/04;E21B19/084;(IPC1-7):E21B3/02;E21B7/02 |
主分类号 |
E21B15/04 |
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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