发明名称 |
Method and apparatus for installing flexible linings in underground pipes |
摘要 |
A method and apparatus for installing a flexible lining tube in an underground pipe by eversion. A pressure vessel is equipped with a gasket that has an arcuate slot for receiving the lining tube in a manner that provides an effective seal without creating undue friction. A guide has a cylindrical wall curved in conformity with the slot and a conical surface leading to the cylindrical wall.
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申请公布号 |
US7988437(B1) |
申请公布日期 |
2011.08.02 |
申请号 |
US20100710767 |
申请日期 |
2010.02.23 |
申请人 |
LAYNE CHRISTENSEN COMPANY |
发明人 |
BONANOTTE RALPH;BECK DOUG |
分类号 |
B29C73/00 |
主分类号 |
B29C73/00 |
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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