发明名称 |
Device and method for trenchless replacement of underground pipe |
摘要 |
The basic features of the invention include a pipe parting mole, a length of cable that is engagable to the mole, a cable pulling device and a cable pulling device engagement means that provides a mounting structure for the cable pulling device. The cable pulling device engagement means generally includes a reaction plate and a structure for removably engaging the cable pulling device therewithin. A cable pulling frame may be advantageously used to facilitate the removal of the cable from a relatively small hole that is created at the pulling end of the pipe.
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申请公布号 |
US6793442(B2) |
申请公布日期 |
2004.09.21 |
申请号 |
US20030337934 |
申请日期 |
2003.01.06 |
申请人 |
TRIC TOOLS, INC. |
发明人 |
CARTER ROBERT WARD;CARTER ROBERT WILLIAMS |
分类号 |
B23D21/02;B23D21/14;E03F3/06;E21B7/20;E21B7/30;E21B29/10;F16L1/00;F16L1/024;(IPC1-7):E02F5/10 |
主分类号 |
B23D21/02 |
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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