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