发明名称 |
Method and apparatus for molding a closure cap |
摘要 |
An improved molded closure cap is described which has a softer sealing portion and a relatively hard closure engaging portion. The cap is molded using two differing plastics where the container engaging portion is molded of a softer seal-forming plastic and the remaining portion or shell is molded of a harder plastic. The novel molding apparatus and method employ plunger or die movement to facilitate a successive molding of the soft and hard cap portions without changing the molding plunger or die.
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申请公布号 |
US4803031(A) |
申请公布日期 |
1989.02.07 |
申请号 |
US19840590153 |
申请日期 |
1984.03.16 |
申请人 |
ANCHOR HOCKING CORPORATION |
发明人 |
OCHS, CHARLES S.;KOONTZ, CARL E. |
分类号 |
B29C45/16;B65D41/04;(IPC1-7):B29C45/16;B29D1/00 |
主分类号 |
B29C45/16 |
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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