发明名称 |
METHOD OF FORMING SELF-SUPPORTING PLEATED FILTER MEDIA |
摘要 |
The method of forming pleated filter media includes providing a generally planar web of filter material (12), folding the web to form a pleated web having a plurality of fold lines, arranging the plurality of pleats (24) in a first spaced configuration defined by a first distance between adjacent pleat tips (34), applying a continuous strand of adhesive (32) to the web, and adjusting the arrangement of the plurality of pleats (24) into a second spaced configuration defined by a second distance between adjacent pleat tips (34). The web has a front face (36) and a rear face. Each fold line is intermediate oppositely sloping first and second wall surfaces (35). The plurality of fold lines form a plurality of pleats (24) having a first plurality of pleat tips(34) and a second plurality of pleat valleys (46). The second distance is different from the first distance. |
申请公布号 |
CA2572307(C) |
申请公布日期 |
2013.09.10 |
申请号 |
CA20052572307 |
申请日期 |
2005.06.01 |
申请人 |
3M INNOVATIVE PROPERTIES COMPANY |
发明人 |
DUFFY, DEAN R.;YOUNG, DONALD E.;CHRISTENSEN, LOWELL E.;SUNDET, DOUGLAS C. |
分类号 |
B01D29/07;B01D29/01;B01D29/21;B01D46/52;B31D5/00 |
主分类号 |
B01D29/07 |
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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