发明名称 |
COMPACT MID-GRIP FASTENER |
摘要 |
A fastener for coupling blowout preventers in a stack including an elongated shaft having a first end and a second end, and a head disposed proximate the first end of the elongated shaft and adapted to be retained in a recess in a first blowout preventer. The second end of the elongated shaft is adapted to be coupled to a second blowout preventer. |
申请公布号 |
WO2005028804(A3) |
申请公布日期 |
2005.12.15 |
申请号 |
WO2004US30223 |
申请日期 |
2004.09.16 |
申请人 |
HYDRIL COMPANY - PRESSURE CONTROL;HOLLAND, WILLIAM, R. |
发明人 |
HOLLAND, WILLIAM, R. |
分类号 |
E21B33/03;E21B33/038;E21B33/06 |
主分类号 |
E21B33/03 |
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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