发明名称 |
PIPE BURSTER WITH SPHERICAL BURSTING MEMBER |
摘要 |
An apparatus (24) for bursting pipe is preferably adapted to receive energy from a drill string (14). The apparatus has a plurality of spherical pipe- bursting members (70) driven by movement of the drill string to burst an in situ pipe. In a preferred embodiment a single-member drill string is used to drive operation of a plurality of spherical pipe-bursting members disposed about a frame (64) of the apparatus. In other preferred embodiments, rotatio n of the inner member of s dual-member drill string is used to drive operation of the spherical pipe-bursting members. Spherical pipe-bursting members increase the efficiency of pipe-bursting operations by utilizing rotational energy generated by the movement of the members.
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申请公布号 |
CA2534912(C) |
申请公布日期 |
2009.02.17 |
申请号 |
CA20042534912 |
申请日期 |
2004.08.09 |
申请人 |
THE CHARLES MACHINE WORKS, INC. |
发明人 |
MULLINS, STANLEY H.;SELF, KELVIN P.;CAROTHERS, JIM |
分类号 |
E21B29/00;E21B7/04;E21B7/30;F16L55/165 |
主分类号 |
E21B29/00 |
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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