发明名称 LIQUID- AND GAS-TIGHT THREADED TUBULAR CONNECTION
摘要 A liquid and gas tight threaded tubular connection includes a first axial abutment surface formed at the free end of an annular lip of a threaded male element and a second axial abutment surface formed at the end of a housing of a threaded female element. The first and second axial abutment surfaces have the same axial half-sections, the inclination of which varies progressively in the radial direction.
申请公布号 CA2847866(A1) 申请公布日期 2007.02.15
申请号 CA20062847866 申请日期 2006.07.21
申请人 VALLOUREC OIL AND GAS FRANCE;SUMITOMO METAL INDUSTRIES, LTD. 发明人 CHARVET-QUEMIN, JEAN-FRANCOIS;EMERGY, JEAN-PIERRE;HAMAMOTO, TAKAHIRO;SUGINO, MASAAKI
分类号 F16L15/04;E21B17/042;F16L15/06 主分类号 F16L15/04
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