发明名称 TUBULAR CONNECTION WITH SELF-LOCKING THREADING USED IN THE OIL INDUSTRY
摘要 A threaded connection including first and second tubular components, each including a respective male and female end, the male end including, on its external peripheral surface, at least one threaded zone and finishing in a terminal surface orientated radially with respect to the axis of the connection, the female end including, on its internal peripheral surface, at least one threaded zone and finishing in a terminal surface orientated radially with respect to the axis of the connection. The male threaded zone includes a first portion in which the width of the teeth, CWTp, increases from a value CWTpmin corresponding to the width of the tooth closest to the terminal surface of the male end to a value CWTpmax corresponding to the width of the tooth furthest from the terminal surface, while the width of the teeth CWTb of the female threaded zone decreases from a value CWTbmax corresponding to the width of the tooth furthest from the terminal surface of the female end to a value CWTbmin corresponding to the width of the tooth closest to the terminal surface, such that the threaded zones cooperate in accordance with self-locking make-up, wherein CWTpmin/CWTbmax≧0.2 and CWTbmin/CWTpmax≰CWTpmin/CWTbmax.
申请公布号 US2011278838(A1) 申请公布日期 2011.11.17
申请号 US200913139522 申请日期 2009.12.07
申请人 MARTIN PIERRE;VERGER ERIC;SUMITOMO METAL INDUSTRIES, LTD.;VALLOUREC MANNESMANN OIL & GAS FRANCE 发明人 MARTIN PIERRE;VERGER ERIC
分类号 F16L25/00 主分类号 F16L25/00
代理机构 代理人
主权项
地址