发明名称 RACCORDO PER TUBI.
摘要 A pipe connector with helically threaded (49, 57) frustoconical pin (10) and box (30) surfaces. The connector is axially (78) snapped together, but is rotated for disengagement. Centralizing surfaces (150, 152) on each thread form abut opposing crests (62, 54) to maintain concentrically, thereby detering disengagement under bending moments.
申请公布号 IT8423208(D0) 申请公布日期 1984.10.18
申请号 IT19840023208 申请日期 1984.10.18
申请人 VETCO OFFSHORE INC. 发明人 BELL JAMES LESLIE JR.;THATCHER MARK TIMOTHY;BRAMMER NORMAN;SWEENEY THOMAS FRANKLIN;PHILLIPS BRIAN KEITH
分类号 E21B17/042;E21B17/043;E21B17/08;F16L15/06;F16L37/62 主分类号 E21B17/042
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