发明名称 |
Thread connector anti-rotation device |
摘要 |
A locking device for locking the threaded connection of two tubular members together utilizes a key. The threaded members have an overlapping section. One of the sections has a slot machined in it. A key is driven into this slot. The key fits in an interference fit to secure the members. The key has an enlarged head to enable the key to be extracted if the connection needs to be loosened.
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申请公布号 |
US4902047(A) |
申请公布日期 |
1990.02.20 |
申请号 |
US19890338178 |
申请日期 |
1989.04.14 |
申请人 |
VETCO GRAY INC. |
发明人 |
MARIETTA, DALE B.;MACDONALD, ALISTAIR |
分类号 |
E21B17/043;F16L15/08 |
主分类号 |
E21B17/043 |
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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