发明名称 |
Pipe joint having pressure activated sealing means |
摘要 |
A joint for interconnecting a pair of pipes having two-step Hydril-type connection means disposed thereupon. A secondary sealing means is disposed on the pin member connection means within a thread groove which forms part of the seal housing along with pin and box member torque shoulders.
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申请公布号 |
US4577895(A) |
申请公布日期 |
1986.03.25 |
申请号 |
US19840573216 |
申请日期 |
1984.01.23 |
申请人 |
HUB CITY IRON WORKS, INC. |
发明人 |
CASTILLE, ALAN J. |
分类号 |
E21B17/042;F16L15/04;(IPC1-7):F16L15/00 |
主分类号 |
E21B17/042 |
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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