发明授权
- 专利标题: Threaded pipe joint
- 专利标题(中): 螺纹管接头
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申请号: US10424857申请日: 2003-04-29
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公开(公告)号: US06851727B2公开(公告)日: 2005-02-08
- 发明人: Gabriel E. Carcagno , Giuseppe Della Pina , Rita G. Toscano , Tommaso Coppola
- 申请人: Gabriel E. Carcagno , Giuseppe Della Pina , Rita G. Toscano , Tommaso Coppola
- 申请人地址: NL Amsterdam
- 专利权人: Tenaris Connections B.V.
- 当前专利权人: Tenaris Connections B.V.
- 当前专利权人地址: NL Amsterdam
- 代理机构: Fitzpatrick, Cella, Harper & Scinto
- 优先权: ITRM2002A000234 20020430
- 主分类号: F16L15/04
- IPC分类号: F16L15/04 ; F16L15/06 ; F16L35/00
摘要:
Threaded joint for pipes consisting of a male member (1) and a female member (2), which are provided on the outer and inner surfaces respectively with two threading portions presenting a lead-in flank β such that 10°≦β≦25°, an abutment surface (9) being present at the end of said male member for abutment to a corresponding annular abutment surface (10) of the female member. The lead-in flanks of the male (1) and the female (2) members, upon make-up and with unloaded joint leave a gap (in the direction parallel to the axis (21) of the joint) varying from 0.01 to 0.12 mm. The internal and external diameters D3 and D4 (of the pipe portion not involved in the coupling with the female member) of said male member, the inner and outer diameters D1 and D2 of the abutment surface of the female member are linked by the relationship: (D22−D12)/(D42−D32)≧0.5.
公开/授权文献
- US20040017079A1 Threaded pipe joint 公开/授权日:2004-01-29
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