发明名称 |
Cutting, valve insertion and corrosion-resistant works without fluid supply interruption |
摘要 |
A fluid supply interruption free cutting apparatus of the present invention comprises a seal-up housing and a drill. The drill has a milling cutting tool turned by a motor. The seal-up housing is of a structure suited to turn in the circumferential direction of an existing pipe. A first housing part of the seal-up housing is formed with a cutting tool insertion aperture through which the cutting tool is inserted and with a gate passage aperture through which a gate passes that is inserted for cutting off the flow of a fluid through the interior of the existing pipe after cutting of the existing pipe. The first housing part is provided with a first operation valve to open or close the gate passage aperture and with a second operation valve to open or close the cutting tool insertion aperture.
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申请公布号 |
US2001017159(A1) |
申请公布日期 |
2001.08.30 |
申请号 |
US20010758283 |
申请日期 |
2001.01.11 |
申请人 |
SUIKEN CO., LTD. |
发明人 |
SATO TOSHIYUKI;YAMASHITA TAMOTSU |
分类号 |
F16L41/04;(IPC1-7):F16L55/00 |
主分类号 |
F16L41/04 |
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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