发明名称 |
Apparatus for integrally joining preformed thermoplastic core elements especially adapted for the continuous manufacture of melt-blown filter cartridges |
摘要 |
Apparatus and methods are disclosed whereby elongate preformed thermoplastic elements are friction-welded coaxially in an end-to-end manner so that the core elements are joined integrally to one another. Most preferably, the elongate elements are perforated tubular elements formed of a thermoplastic material which are employed as core elements in the production of cylindrical melt-blown filter cartridges. As such, the integrally joined core elements can be rotated and traversed as a unit relative to a melt-blowing die during the continuous production of indefinite length cylindrical melt-blown filter cartridges.
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申请公布号 |
US5690782(A) |
申请公布日期 |
1997.11.25 |
申请号 |
US19960758812 |
申请日期 |
1996.12.04 |
申请人 |
MEMTEC, LTD. |
发明人 |
MOZELACK, BRIAN;CONNOR, ROBERT D.;SCHMITT, ROBERT J. |
分类号 |
B01D29/11;B29C31/00;B29C65/06;B29C65/78;D01D5/098;D04H1/56;(IPC1-7):B01D27/02 |
主分类号 |
B01D29/11 |
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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