发明名称 |
Apparatus using removable profile wedges for manufacture of reclosable bag |
摘要 |
The present invention relates to the integral extrusion of closure profiles and a film through a film die. The present invention provides an apparatus for integrally extruding a film and closure profiles from a single stream of molten material and, consequently, eliminating any joining problems between the film and the closure profiles. The present invention utilizes a removable die lip with removable profile wedges that mount in the die lip and extrude the closure profiles and a film together from a single stream of molten material. In this manner, the closure profiles and the film are integrally formed, and if a new closure profile design is desired, the present invention permits the quick and economical replacement of a removable profile wedge with another.
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申请公布号 |
US5273595(A) |
申请公布日期 |
1993.12.28 |
申请号 |
US19920986836 |
申请日期 |
1992.12.09 |
申请人 |
REYNOLDS CONSUMER PRODUCTS, INC. |
发明人 |
TOMIC, MLADOMIR;DIPIETRO, DAVID |
分类号 |
B29C47/12;B29C47/16;(IPC1-7):B29C47/06 |
主分类号 |
B29C47/12 |
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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