发明名称 THREADED ELEMENT OF A COMPONENT WITH OPPOSED THREADING PORTIONS AND CORRESPONDING TUBULAR THREADED CONNECTION
摘要 A threaded element of a component includes at least first and second threading portions each including threads each including a stabbing flank and a loading flank. The stabbing flanks and loading flanks of the threads of the first threading portion and the threads of the second threading portion are inclined in an opposed manner with respect to the radial direction.
申请公布号 EP2167783(A1) 申请公布日期 2010.03.31
申请号 EP20080801462 申请日期 2008.06.10
申请人 VALLOUREC MANNESMANN OIL & GAS FRANCE;SUMITOMO METAL INDUSTRIES, LTD. 发明人 GILLOT, LAURENT;VERGER, ERIC;TARTAR, OLIVIER
分类号 E21B17/042;F16L15/06 主分类号 E21B17/042
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