发明名称 |
Edge thickness control system |
摘要 |
A control system for controlling the edge thickness of an extrudate includes an arrangement responsive to a signal representative of the monitored thickness of the extrudate emanating from a die slot controlled by a transversely inward heating element for generating a control set point for that heating element and for a heating element controlling the die slot adjacent a lateral edge thereof.
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申请公布号 |
US4804556(A) |
申请公布日期 |
1989.02.14 |
申请号 |
US19840646172 |
申请日期 |
1984.08.30 |
申请人 |
E. I. DU PONT DE NEMOURS AND COMPANY |
发明人 |
LEFFEW, KENNETH W.;TRENTACOSTA, JOSEPH D. |
分类号 |
B29C47/16;B29C47/92;G05D5/03;(IPC1-7):B05C5/02 |
主分类号 |
B29C47/16 |
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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