发明授权
- 专利标题： Method of forming a vial blowback cavity
- 专利标题（中）： 形成小瓶反吹腔的方法
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申请号： US280439申请日： 1981-07-06
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公开(公告)号： US4385919A公开(公告)日： 1983-05-31
- 发明人: Albert S. Goffredi , John E. Lisi , Ralston G. Edwards, Jr.
- 申请人： Albert S. Goffredi , John E. Lisi , Ralston G. Edwards, Jr.
- 申请人地址： OH Toledo
- 专利权人： Owens-Illinois, Inc.
- 当前专利权人： Owens-Illinois, Inc.
- 当前专利权人地址： OH Toledo
- 主分类号： C03B23/09
- IPC分类号： C03B23/09 ; C03B35/26
摘要：
A method of forming a blowback cavity in a vial or similar cylindrical article comprises the steps of providing a cylindrical glass preform having a necked region and first forming an open blowback cavity adjacent the necked region and a relatively thin axially projecting terminal lip on the adjacent end of the preform and subsequently turning the terminal lip inwardly to form a radially extending face defining a mouth opening having a diameter smaller than the diameter of the blowback cavity.
公开/授权文献
- US5480082A Tile cutter 公开/授权日：1996-01-02
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