发明名称 |
Thickness control system having a duty cycle controller |
摘要 |
A thickness control system for controlling the thickness of an extrudate includes a host computer for controlling the temperature of a heat responsive element based upon a predetermined temperature set point. A back-up duty cycle controller is provided for control in the event of host failure.
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申请公布号 |
US4804557(A) |
申请公布日期 |
1989.02.14 |
申请号 |
US19840646174 |
申请日期 |
1984.08.30 |
申请人 |
E. I. DUPONT DE NEMOURS AND COMPANY |
发明人 |
ANTHONY, JR., JOHN D.;LEFFEW, KENNETH W. |
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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