| 发明名称 |
PLASTIC MOLDING |
| 摘要 |
<p>A die ring for use in a blow molding apparatus is provided with depressions at the downstream end of the land to provide the parison with a longitudinally thickened rib and depressions at the upstream end of the land to counteract parison deformation caused by the downstream depressions.</p> |
| 申请公布号 |
CA1222359(A) |
申请公布日期 |
1987.06.02 |
| 申请号 |
CA19830435045 |
申请日期 |
1983.08.22 |
| 申请人 |
PHILLIPS PETROLEUM COMPANY |
发明人 |
MOZER, LARRY P.;MORGAN, BILL T. |
| 分类号 |
B29C47/20;B29C49/00;(IPC1-7):B29C49/04 |
主分类号 |
B29C47/20 |
| 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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