发明名称 |
Polymer diverter system for metal pipe having an integrally formed polymer liner |
摘要 |
An apparatus for applying polymer to metal pipe during the pipe forming process has a pump for pumping the polymer, a first extruder die receiving polymer from the pump and configured to apply polymer to metal pipe as the metal pipe is being formed from metal stock, and a second extruder die for forming pipe couplers. A valve effects diversion of the polymer from the first extruder die to the second extruder die when a stoppage of the pipe forming process occurs.
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申请公布号 |
US5607530(A) |
申请公布日期 |
1997.03.04 |
申请号 |
US19950512989 |
申请日期 |
1995.08.09 |
申请人 |
W.E. HALL COMPANY |
发明人 |
HALL, ROBERT E.;ANDRE, JAMES R.;LEASON, J. K. |
分类号 |
B29C47/02;B29C47/74;(IPC1-7):B29C47/70 |
主分类号 |
B29C47/02 |
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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