发明名称 |
Sheet shaping press |
摘要 |
The present invention provides a ring mold for shaping heat-softenable sheet material. The mold includes peripheral wall members enclosing a central cavity having an open upper end. The wall members have an upper sheet shaping surface with a peripheral shape and elevational contour that generally corresponds to a desired peripheral shape and elevational contour of a sheet to be shaped. A first set of slots are positioned along and extend through portions of one of the wall members and a second set of slots are positioned along and extend through portions of an opposing wall member. Each of the slots in the second set is generally horizontally aligned with a corresponding slot in the first set.
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申请公布号 |
US5656055(A) |
申请公布日期 |
1997.08.12 |
申请号 |
US19950448773 |
申请日期 |
1995.05.24 |
申请人 |
PPG INDUSTRIES, INC. |
发明人 |
FRANK, ROBERT G.;FECIK, MICHAEL T.;FLOREAN, JEAN |
分类号 |
C03B23/03;(IPC1-7):C03B23/00;C03B29/00 |
主分类号 |
C03B23/03 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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