发明名称 MULTIPLE LAYER FILTER MEDIA
摘要 The invention provides a multiple layer filter media for removal of particles from a fluid stream. The multiple layer filter media may include a depth filtration layer, a membrane filtration layer and a support layer. Additional layers may be present. The membrane filtration layer may comprise expanded polytetrafluoroethylene (ePTFE). The various layers of the multiple layer filter media may be bonded together through a plurality of point bonds. The point bonding process may include simultaneously bonding multiple layers of the multiple layer filter media together in a single operation. The point bonds may be created using ultrasonic bonding.
申请公布号 CA2690076(A1) 申请公布日期 2008.12.18
申请号 CA20082690076 申请日期 2008.06.02
申请人 GORE ENTERPRISE HOLDINGS, INC. 发明人 GEBERT, RICHARD;POON, WAI SING;STARK, STEVE
分类号 B01D46/00;B01D46/54 主分类号 B01D46/00
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