发明名称 |
Vorrichtung zur Herstellung eines Durchganges |
摘要 |
<p>The tapping device includes a body that receives a cutter and sleeve. The cutter and sleeve advance together to form an opening in the sidewall of a main conduit about which the body is secured. The sleeve includes external threads that grip into the conduit sidewall. Thereafter, retraction of the cutter leaves the sleeve in place to secure the tapping device to the conduit and establish fluid communication therethrough. The cutter and sleeve preferably have different thread pitches, so that the sleeve advances at a slightly faster rate than the cutter. This facilitates sealing engagement between the external surface of the main conduit and the body. A one-way drive arrangement is provided between the sleeve and cutter so that once the sleeve is positioned in place, the cutter can be removed without altering the location of the sleeve.</p> |
申请公布号 |
DE69523845(D1) |
申请公布日期 |
2001.12.20 |
申请号 |
DE1995623845 |
申请日期 |
1995.09.12 |
申请人 |
PERFECTION CORP., MADISON |
发明人 |
BRENNAN, MICHAEL |
分类号 |
B23B41/08;F16L47/34;(IPC1-7):F16L41/04;F16L47/00 |
主分类号 |
B23B41/08 |
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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