发明授权
- 专利标题: Seal for blow down platen
- 专利标题(中): 用于压下压板的密封
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申请号: US105033申请日: 1993-08-11
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公开(公告)号: US5460773A公开(公告)日: 1995-10-24
- 发明人: Michael L. Fritz , Alton L. Fritz
- 申请人: Michael L. Fritz , Alton L. Fritz
- 专利权人: Fritz; Michael L.,Fritz; Alton L.
- 当前专利权人: Fritz; Michael L.,Fritz; Alton L.
- 主分类号: B21D22/12
- IPC分类号: B21D22/12 ; B21D26/029 ; B21D26/031 ; B21D26/059 ; B29C33/00 ; B29C51/10 ; B29C51/26
摘要:
A blow down hydroforming apparatus for sheet material incorporates an hydraulically inflatable seal disposed between a platen and a table in circumscribing relationship with a cavity formed in the platen to maintain the pressure of gas in the cavity during forming of the sheet material.
公开/授权文献
- USD427788S Storage bench 公开/授权日:2000-07-11
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