发明名称 |
Device for manufacturing a double-walled thermoplastic pipe with a connecting sleeve |
摘要 |
A device for manufacturing a double-walled thermoplastic pipe with a connecting sleeve has a molding tunnel with a succession of molds for forming a corrugated molding wall and a connecting sleeve, respectively. An extrusion device extrudes a first flexible tube into said molding tunnel and a second flexible tube into said first flexible tube. A first gas channel is arranged for generating a pressure between said first and second flexible tubes. A compressed-gas control device is connected to said first gas channel for generating a pressure p 1 or a pressure p 2 in said space between said first and second flexible tubes by compressed air emerging from said first gas channel. A second compressed-gas control device is connected to a second gas channel for guiding compressed gas onto an inner side of said second flexible tube. Said first pressure controller is connected to said first gas channel via a compressed-gas line that is connected to an additional compressed-gas reservoir for gas exchange therewith.
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申请公布号 |
US2006033244(A1) |
申请公布日期 |
2006.02.16 |
申请号 |
US20050257996 |
申请日期 |
2005.10.26 |
申请人 |
MANFRED ARNO ALFRED LUPKE |
发明人 |
LUPKE MANFRED A.A.;LUPKE STEFAN A. |
分类号 |
B29C43/22;B29C47/06;B29C47/12;B29C49/00;B29C49/78;B29C59/00 |
主分类号 |
B29C43/22 |
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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