发明名称 |
Branch pipe liner assembly and a pipe lining method |
摘要 |
A tubular branch pipe liner is proposed, which has a rigid collar at its end and to this collar is attached a protector consisting of a first portion which is out-spread downwardly and curved to fit on the lower face of the collar and is fixed thereto, a second portion which is roughly cylindrical and fitted into the inner peripheral face of the collar and the inner wall of a little part of the tubular branch pipe liner which is immediately continuous from the collar, and a third portion which extends downwardly and terminates in an annular end face at a location substantially lower than the joint where the first portion and the second portion meet; also proposed is a pipe lining method, which comprises the steps of preparing a branch pipe liner with a collar; and attaching the above-mentioned protective member to the collar; and lining a branch pipe with the tubular branch pipe liner; and lining the main pipe with a conventional main pipe liner; and cutting a hole through that circular portion of the main pipe liner which is defined by the annular end face of the third portion of the protective member.
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申请公布号 |
US5944058(A) |
申请公布日期 |
1999.08.31 |
申请号 |
US19980017661 |
申请日期 |
1998.02.03 |
申请人 |
SHONAN GOSEI-JUSHI SEISAKUSHO K.K.;YOKOSHIMA & COMPANY;GET INC.;OAR COMPANY |
发明人 |
KAMIYAMA, TAKAO;YOKOSHIMA, YASUHIRO;ENDOH, SHIGERU;AOKI, HIROYUKI |
分类号 |
B29C63/34;F16L55/165;F16L55/179;F16L55/26;(IPC1-7):F16L55/16 |
主分类号 |
B29C63/34 |
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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