发明名称 |
forma de rosca com flancos multi-facetados. |
摘要 |
A thread form for a tubular connection of the type having a pin member adapted to be made-up with a box member to form a pipe joint as shown. The pin member has pin threads with thread crests and thread roots which are adapted to be made-up with a mating box member having a complimentary thread structure. The pin thread crests are formed between a stab flank and a load flank of the pin thread. The pin thread has a multi-facited complex profile stab flank for engaging a mating stab flank on the complimentary box member to provide a wedging interfit between the surfaces of the pin and box threads. The pin and box threads are also helically structured as a wedge. |
申请公布号 |
BR0009971(B1) |
申请公布日期 |
2009.08.11 |
申请号 |
BR20000009971 |
申请日期 |
2000.04.12 |
申请人 |
|
发明人 |
KRIS L. CHURCH |
分类号 |
F16L15/04;F16L25/00;E21B17/042;F16L15/00;F16L15/06;F16L35/00 |
主分类号 |
F16L15/04 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|