发明名称 |
Method for lining a branch pipe of an underground pipe |
摘要 |
A method is proposed for lining a branch pipe from the main pipe; in particular a special sealing mechanism is adopted in attaching the collar of a liner bag onto the flange of a fluid pressure sealing nozzle: stopper tacks are embedded in the collar at appropriate locations, each of the stopper tacks having its bottom end exposed from the back face of the collar and connected with a string; the back face of the collar of the branch pipe liner bag is faced with the upper face of the flange of the fluid pressure sealing nozzle, which comprises a hollow cylindrical part, the flange extending perpendicularly from the side of the cylindrical part, at least one endless sealant laid on the upper face of the flange, and a string puller provided in the flange; the strings are engaged with the string puller; the string puller pulls the strings so that the collar and the flange are moved toward each other until sufficient sealing effect is obtained.
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申请公布号 |
US5566719(A) |
申请公布日期 |
1996.10.22 |
申请号 |
US19950398241 |
申请日期 |
1995.03.03 |
申请人 |
SHONAN GOSEI-JUSHI SEISAKUSHO K.K.;YOKOSHIMA & COMPANY |
发明人 |
KAMIYAMA, TAKAO;YOKOSHIMA, YASUHIRO |
分类号 |
B29C35/04;B29C63/34;B29C63/36;B29K101/10;B29K105/06;F16L55/165;F16L55/179;(IPC1-7):F16L55/16 |
主分类号 |
B29C35/04 |
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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