发明名称 DISPOSITIVO DE VEDAÇÃO METÁLICO
摘要 A metal seal for a wellhead assembly has upper and lower legs extending in opposite directions from each other and a rib extending radially outward from a junction of the legs. A first conical band on the upper leg extends uninterrupted from the rib a selected distance toward a tip of the upper leg. A second conical band on the upper leg extends uninterrupted from the tip of the upper leg toward the first conical band. An annular recess is located between the first and second conical bands. The lower leg also has two conical seal bands separated by a recess.
申请公布号 BR0202432(B1) 申请公布日期 2015.01.20
申请号 BR20020202432 申请日期 2002.06.28
申请人 VETCO GRAY INC. 发明人 THOMAS F. SWEENEY;NORMAN BRAMMER;GEORGE CHALMERS
分类号 E21B33/00;E21B33/02;F16J15/08 主分类号 E21B33/00
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