发明授权
US07171988B2 Tubing for hydrostatic forming, hydrostatic forming apparatus, and hydrostatic forming method using the apparatus
有权
用于静液压成型的管道，静液成型装置和使用该装置的静液压成型方法
- 专利标题： Tubing for hydrostatic forming, hydrostatic forming apparatus, and hydrostatic forming method using the apparatus
- 专利标题（中）： 用于静液压成型的管道，静液成型装置和使用该装置的静液压成型方法
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申请号： US11001093申请日： 2004-12-02
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公开(公告)号： US07171988B2公开(公告)日： 2007-02-06
- 发明人: Fumihiko Gejima , Hiroshi Sakurai , Kenji Kanamori , Tetsuji Morita , Sadao Yanagida , Masayuki Inoue
- 申请人： Fumihiko Gejima , Hiroshi Sakurai , Kenji Kanamori , Tetsuji Morita , Sadao Yanagida , Masayuki Inoue
- 申请人地址： JP Yokohama
- 专利权人： Nissan Motor Co., Ltd.
- 当前专利权人： Nissan Motor Co., Ltd.
- 当前专利权人地址： JP Yokohama
- 代理机构： Foley & Lardner LLP
- 优先权： JP2003-408688 20031208; JP2003-429227 20031225; JP2004-089733 20040325
- 主分类号： F16L9/00
- IPC分类号： F16L9/00
摘要：
A tubing including an overlap portion formed by the first and second circumferential end portions overlapping and joined with each other, and a fluid leakage preventing member for preventing pressurized fluid from leaking from the tubing upon the tubing being subjected to hydrostatic forming. An apparatus and method for hydrostatic forming of a tubing having an overlap portion. The apparatus includes a die and a nozzle having fluid leakage preventing means for preventing the pressurized fluid supplied into the tubing from leaking from a clearance between the first and second circumferential end portions of the overlap portion of the tubing at the longitudinal end portions of the tubing.
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