发明名称 |
Liner installation tool and method |
摘要 |
A method of installing a liner within an underground pipe from a surface above the pipe wherein an excavation provides access to the pipe comprising installing a liner installation tool on an end portion of the liner to induce a distal curve in the liner, lowering the installation tool and liner into the excavation to induce a proximal curve in the liner and advancing the liner through the installation tool and into the underground pipe.
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申请公布号 |
US4504171(A) |
申请公布日期 |
1985.03.12 |
申请号 |
US19830528931 |
申请日期 |
1983.09.02 |
申请人 |
GETTY SYNTHETIC FUELS, INC. |
发明人 |
FLORENCE, JR., HENRY S. |
分类号 |
F16L55/18;(IPC1-7):F16L1/00;B23P19/04;E03B7/00 |
主分类号 |
F16L55/18 |
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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