发明名称 |
Device for installing pipe in ground comprises reamer driven by pulling rods with pulling head fixed to pipe and uncoupling means between reamer and pulling head |
摘要 |
The device comprises a reamer (10) driven by a set of pulling rods (3) in translation in a given direction and rotating around this direction. A pulling head (20) is able to be fixed to the pipe (2) to be installed and an uncoupling means (51) is mounted between the reamer and the pulling head.
|
申请公布号 |
FR2809449(A1) |
申请公布日期 |
2001.11.30 |
申请号 |
FR20000006713 |
申请日期 |
2000.05.25 |
申请人 |
BUTTERWORTH JACK |
发明人 |
BUTTERWORTH JACK |
分类号 |
E21B7/20;E21B7/28;(IPC1-7):E21B7/28;F16L1/028 |
主分类号 |
E21B7/20 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|