发明名称 |
Threaded joint for tubes |
摘要 |
The threaded joint for tubes according to the invention concerns sealed end to end connections of metal tubes useable in particular in the petroleum industry. This joint comprises a sleeve provided with two housings with tapered threads into which are screwed the male extremities of two metal tubes provided with corresponding threads having non-threaded extremity zones the front walls of which abut one against the other, a clearance existing between the lateral walls of these zones and the annular wall of he sleeve opposite. Two pairs of male/female shoulder stops prevent over-screwing. The heights of the teeth of the male and female threads are identical.
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申请公布号 |
US5782503(A) |
申请公布日期 |
1998.07.21 |
申请号 |
US19960636932 |
申请日期 |
1996.04.24 |
申请人 |
VALLOUREC OIL & GAS;SUMITOMO METAL INDUSTRIES |
发明人 |
NOEL, THIERRY;NARITA, AKIRA |
分类号 |
F16L9/02;E21B17/042;F16L15/04;F16L15/06;(IPC1-7):F16L7/00 |
主分类号 |
F16L9/02 |
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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