发明授权
- 专利标题： Method of forming pipe spigot ridge
- 专利标题（中）： 形成管状凸脊的方法
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申请号： US828535申请日： 1997-03-31
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公开(公告)号： US6016948A公开(公告)日： 2000-01-25
- 发明人: Manabu Kurotobi , Mutsuo Uchida , Takahiro Tanaka , Tsuneo Suzuki , Yutaro Takahashi
- 申请人： Manabu Kurotobi , Mutsuo Uchida , Takahiro Tanaka , Tsuneo Suzuki , Yutaro Takahashi
- 申请人地址： JPX Osaka
- 专利权人： Kubota Corporation
- 当前专利权人： Kubota Corporation
- 当前专利权人地址： JPX Osaka
- 优先权： JPX8-181729 19960711
- 主分类号： F16L21/00
- IPC分类号： F16L21/00 ; B23K9/00 ; B23K9/028 ; B23K9/235 ; B23K33/00 ; F16L9/02 ; F16L21/08
摘要：
A method of forming a ridge around the outer circumference of a spigot formed at an end of a pipe. A ring having a certain wall thickness in its radial direction and formed with a peripheral groove on its outer circumference is placed around the outer circumference of the spigot. Then molten metal is poured into the peripheral groove, so that the bottom of the peripheral groove and the surface of the spigot are melted, thus joining the ring and spigot together.
公开/授权文献
- US5280275A Graphical interface control buttons with scalar values 公开/授权日：1994-01-18