发明授权
- 专利标题： Apparatus for forming a seam
- 专利标题（中）： 用于形成接缝的装置
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申请号： US906837申请日： 1997-08-06
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公开(公告)号： US5813812A公开(公告)日： 1998-09-29
- 发明人: Peter Leslie Moran , Adrian Kempster
- 申请人： Peter Leslie Moran , Adrian Kempster
- 申请人地址： DE Wilmington
- 专利权人： Carnaudmetalbox (Holdings) USA, Inc.
- 当前专利权人： Carnaudmetalbox (Holdings) USA, Inc.
- 当前专利权人地址： DE Wilmington
- 优先权： GBX9407793 19940420
- 主分类号： B21D51/32
- IPC分类号： B21D51/32
摘要：
A chuck, for use in a machine forming a double seam joining a can body to an end wall of a can, has a hollow body portion 36 made of machinable material and an annulus 37 of harder material joined to the body portion to define a lower part of the side wall of the chuck. The annulus of harder material is preferably covered by an impervious continuous layer 38 of hard material such as titanium nitride, chromium carbide, iron boride or chromium boride.
公开/授权文献
- USD297760S Faucet handle 公开/授权日：1988-09-20
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