Title:
縦溝が付けられたフィルター媒体
Document Type and Number:
Japanese Patent JP4303318
Kind Code:
B2
Abstract:
Fluted filter media includes filter material having a plurality of flutes formed therein having alternating ends of adjacent flutes closed to force fluid through filter material. A first embodiment of the filter media includes tapered flutes which have the open ends of the flutes larger in cross-section than the closed flutes, wherein the upstream open flutes converge toward the downstream end and the upstream closed end flutes diverge toward the downstream end. A second embodiment includes filter media which is asymmetric formed with dissimilar upstream and downstream flute cross-sections with larger flute openings to the upstream side of the filter. A third embodiment includes filter media with an upstream edge crushed to improve flow at the upstream edge. A fourth embodiment includes filter media with the upstream sealing material recessed from the upstream edge for reducing effects from blockages at the upstream edge of the filter.
Inventors:
Wagner, Wayne, M.
Gillingham, Gary, Earl.
Toker, Joseph, Sea.
Rish, Daniel, Tea.
Rothman, Jim, Seey.
Walkist, Fred, H.
Massy's, Bernard, A.
Sabelco, Stephen, W.
Patten, Bryan, Dee.
Rachel, Gregory, Elle.
Gillingham, Gary, Earl.
Toker, Joseph, Sea.
Rish, Daniel, Tea.
Rothman, Jim, Seey.
Walkist, Fred, H.
Massy's, Bernard, A.
Sabelco, Stephen, W.
Patten, Bryan, Dee.
Rachel, Gregory, Elle.
Application Number:
JP53910297A
Publication Date:
July 29, 2009
Filing Date:
April 25, 1997
Export Citation:
Assignee:
Donaldson Company, Inc.
International Classes:
B01D46/00; B01D25/00; B01D46/24; B01D46/52
Domestic Patent References:
| JP1207112A | ||||
| JP6327910A | ||||
| JP1128811U | ||||
| JP56133005A |
Attorney, Agent or Firm:
Yasunori Otsuka
Shiro Takayanagi
Yasuhiro Otsuka
Shuji Kimura
Shiro Takayanagi
Yasuhiro Otsuka
Shuji Kimura