发明授权
- 专利标题: Metal casting patterns
- 专利标题(中): 金属铸造图案
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申请号: US194566申请日: 1988-05-16
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公开(公告)号: US4842037A公开(公告)日: 1989-06-27
- 发明人: John R. Brown , Nigel K. Graham , Russell A. King
- 申请人: John R. Brown , Nigel K. Graham , Russell A. King
- 申请人地址: GB2 Birmingham
- 专利权人: Foseco International Limited
- 当前专利权人: Foseco International Limited
- 当前专利权人地址: GB2 Birmingham
- 优先权: GBX8713569 19870610; GBX8728489 19871205
- 主分类号: B22C9/04
- IPC分类号: B22C9/04 ; B22C9/08
摘要:
A metal casing pattern of expanded thermoplastics material such as polystyrene or polymethyl methacrylate has a filter comprising a porous ceramic body, such as a body having pores extending from one face to another face or a foam structure, incorporated therein.
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