公开(公告)号：EP2442886A4

公开(公告)日：2013-02-13

申请号：EP10790184

申请日：2010-06-17

申请人： HOLLINGSWORTH & VOSE CO

发明人： SMITH BRUCE ,  JAGANATHAN SUDHAKAR

IPC分类号： B01D39/00

CPC分类号： B01D39/163 ,  B01D2239/0216 ,  B01D2239/064 ,  B01D2239/065 ,  B01D2239/086 ,  B01D2239/1258 ,  B01D2239/1275 ,  B01D2239/1291 ,  B29C53/24 ,  B32B37/04 ,  B32B2305/20 ,  Y10T442/20 ,  Y10T442/60

摘要： The fiber webs described herein may be incorporated into filter media and filter elements. The webs may exhibit a high permeability and stiffness, at a low thickness. The stiffness can be sufficient for the webs to be pleated to include sharp, well-defined peaks which can be maintained in a stable configuration during use.

公开(公告)号：EP3004442A4

公开(公告)日：2017-02-15

申请号：EP14801130

申请日：2014-05-22

申请人： HOLLINGSWORTH & VOSE CO

发明人： ANANTHARAMAIAH NAGENDRA ,  FREEMAN WILLIAM S ,  SMITH BRUCE

IPC分类号： D04H1/00 ,  B01D39/16

CPC分类号： B01D39/1623 ,  B01D39/18 ,  B01D39/2017 ,  B01D2239/0654

公开(公告)号：EP3160616A4

公开(公告)日：2018-02-21

申请号：EP15812164

申请日：2015-06-24

申请人： HOLLINGSWORTH & VOSE CO

发明人： SAHBAEE ARASH ,  SMITH BRUCE

IPC分类号： B01D46/54 ,  B01D39/16 ,  B32B5/12 ,  B32B5/14

CPC分类号： B01D46/0001 ,  B01D39/163 ,  B01D46/023 ,  B01D46/10 ,  B01D46/521 ,  B01D46/546 ,  B01D2239/065 ,  B01D2239/069 ,  B01D2239/1233

摘要： Filter media incorporating one or more filtration layers that include fibers including fiber portions orientated at a non-zero angle with respect to a surface of the filtration layer are provided. In some embodiments, at least a part of the fiber portions are positioned at an angle of at least 20 degrees (e.g., between 46 degrees and 90 degrees, or between 61 degrees and 90 degrees) with respect to a surface of the filtration layer or an outer or cover layer of the media. This orientation of fiber portions may result in an increased efficiency (e.g., average efficiency and/or initial efficiency) compared to similar filter media that do not include such oriented fiber portions.