发明名称 THREAD FORM WITH MULTIFACETED FLANKS
摘要 A thread form for a tubular connection of the type having a pin member (31) adapted to be made-up with a box member (37) to form a pipe joint as shown. The pin member has pin threads with thread crest s (33) and thread roots (35) which are adapted to be made-up with a mating box member (37) having a complimentary thread structure. The p in thread crests are formed between a stab flank (39) and a load flank (41) of the pin thread. The pin thread has a multi-faceted (69, 71, 73) 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 CA2370844(C) 申请公布日期 2008.10.28
申请号 CA20002370844 申请日期 2000.04.12
申请人 JOHN GANDY CORPORATION 发明人 CHURCH, KRIS L.
分类号 E21B17/042;F16L15/04;F16L15/00;F16L15/06 主分类号 E21B17/042
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