发明名称 |
Portable drilling apparatus |
摘要 |
A lightweight portable drilling apparatus capable of being assembled and disassembled for lifting and moving by helicopter. The apparatus includes a center vertically-oriented drilling tower equipped with a rotary drilling assembly, and having a base supported by a plurality of adjustable leveling legs. Also included is a first module pivotally coupled to one side of the tower base and supported by a flexible tether attached to the module and the drilling tower near the top thereof, and a second module pivotally coupled to the other side of the base of the tower and supported by a flexible tether also attached to the drilling tower near the top thereof and to the second module. Each module includes either a power source, such as a diesel engine, or auxiliary power equipment for supplying power to operate the drilling assembly.
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申请公布号 |
US4476940(A) |
申请公布日期 |
1984.10.16 |
申请号 |
US19820371592 |
申请日期 |
1982.04.26 |
申请人 |
PDR MANUFACTURING CORPORATION |
发明人 |
REICHERT, RONALD F.;KRUGER, STEVEN K.;RHODES, JOHN W. |
分类号 |
E21B7/02;E21B19/084;F02B3/06;(IPC1-7):E21B7/12 |
主分类号 |
E21B7/02 |
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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