发明名称 |
Remote installation method and tool |
摘要 |
To insert an instrument into a flow stream of a sewer pipe from the street, the instrument is fastened to a holder, which in turn is fastened to a portion of an expansion ring opposite its two opened edges. A cord is fastened to one of the edges of the expansion ring and passes over a curved post mounted to the other edge of the expansion ring and extended upwardly in a direction parallel to the edges of the expansion ring so that it can be pulled to compress the expansion ring to a small diameter cylinder and released to expand it against the wall of a pipe. A post is mounted to the expansion ring to permit a long tool to grip the post and move the expansion ring into a sewer pipe where it is expanded and released.
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申请公布号 |
US6263747(B1) |
申请公布日期 |
2001.07.24 |
申请号 |
US19950502560 |
申请日期 |
1995.07.14 |
申请人 |
ISCO, INC. |
发明人 |
CARSON DOUGLAS TIMOTHY;WRIGHT PAUL GEORGE;HULL JOHN D. |
分类号 |
E03F7/00;F16L55/26;(IPC1-7):B08B9/00 |
主分类号 |
E03F7/00 |
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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