发明名称 JOINT FILETE TUBULAIRE ETANCHE AUX LIQUIDES ET AUX GAZ
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 FR2889727(B1) 申请公布日期 2007.09.28
申请号 FR20050008456 申请日期 2005.08.09
申请人 VALLOUREC MANNESMANN OIL GAS FRANCE SOCIETE PAR ACTIONS SIMPLIFIEE;SUMITOMO METAL INDUSTRIES, LTD 发明人 CHARVET QUEMIN JEAN FRANCOIS;EMERY JEAN PIERRE;HAMAMOTO TAKAHIRO;SUGINO MASAAKI
分类号 F16L15/04;E21B17/042 主分类号 F16L15/04
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