发明名称 |
Stopping fluid flow in pipes |
摘要 |
An apparatus for cutting into and stopping the flow of fluid in a plastic pipe including a cutting blade that is forced downwardly into a pipe by a hydraulic force. The blade is slightly larger than the internal diameter of the pipe and thus when located within the pipe stops the flow of fluid in the pipe. The apparatus is constructed so that the cutting, flow stopping and the consequential withdrawal of the blade operation is carried out without loss of fluid from the pipe. Part of the apparatus is left on the pipe and encapsulated to complete the operation.
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申请公布号 |
US4119115(A) |
申请公布日期 |
1978.10.10 |
申请号 |
US19770779488 |
申请日期 |
1977.03.21 |
申请人 |
BRITISH GAS CORPORATION |
发明人 |
CARRUTHERS, ALEC REGINALD |
分类号 |
F16L55/10;F16L55/105;(IPC1-7):F16K43/00 |
主分类号 |
F16L55/10 |
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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