发明名称 |
Method for heating thermoplastic elements |
摘要 |
Ends of two thermoplastic elements are heated to their respective fusion temperatures wherein the fusion temperatures are different and wherein the fusion temperatures are reached at approximately the same time. A heating means having two heating surfaces and an insulating plate are employed to accomplish the heating.
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申请公布号 |
US3929541(A) |
申请公布日期 |
1975.12.30 |
申请号 |
US19740464955 |
申请日期 |
1974.04.29 |
申请人 |
PHILLIPS PETROLEUM COMPANY |
发明人 |
SPEARS, JOHNNIE E.;CALDWELL, DONALD L. |
分类号 |
B29C65/00;B29C65/20;(IPC1-7):B29C27/06 |
主分类号 |
B29C65/00 |
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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