发明名称 |
Equipment for producing special pipes |
摘要 |
Equipment for producing a pipe having a longitudinally extending diaphragm which partitions the interior of the pipe into two conduits. This equipment comprsises a die head with a circular slit to extrude the tubular body of the pipe and a flat slit to extrude the partitioning diaphragm. Means are provided to deform that diaphragm at spaced apart intervals along its length so as to intimately contact one of the pipe walls at those intervals. This means may be a nozzle having an opening for expelling a fluid against the diaphragm while it is still in a plastic state or a movable plate similarly positioned.
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申请公布号 |
US4191518(A) |
申请公布日期 |
1980.03.04 |
申请号 |
US19780903799 |
申请日期 |
1978.05.08 |
申请人 |
SUMITOMO CHEMICAL CO LTD |
发明人 |
KOJIMOTO, SUSUMU;MORI, TOSHIO;SATO, TAKAMI |
分类号 |
A01G25/02;B29C47/00;B29C47/20;B29C65/00;F16L9/18;(IPC1-7):B29D23/04 |
主分类号 |
A01G25/02 |
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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