Invention Grant
- Patent Title: Method of making a fluted filter media for air filter
- Patent Title (中): 制造用于空气过滤器的槽纹过滤介质的方法
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Application No.: US10371825Application Date: 2003-02-21
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Publication No.: US07329326B2Publication Date: 2008-02-12
- Inventor: Wayne M. Wagner , Gary R. Gillingham , Joseph C. Tokar , Daniel T. Risch , Jim C. Rothman , Fred H. Wahlquist , Bernard A. Matthys , Gregory L. Reichter , Stephen W. Sabelko , Bryan D. Patten
- Applicant: Wayne M. Wagner , Gary R. Gillingham , Joseph C. Tokar , Daniel T. Risch , Jim C. Rothman , Fred H. Wahlquist , Bernard A. Matthys , Gregory L. Reichter , Stephen W. Sabelko , Bryan D. Patten
- Applicant Address: US MN Minneapolis
- Assignee: Donaldson Company, Inc.
- Current Assignee: Donaldson Company, Inc.
- Current Assignee Address: US MN Minneapolis
- Agency: Merchant & Gould, P.C.
- Main IPC: B31F1/20
- IPC: B31F1/20 ; B31F1/28

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.
Public/Granted literature
- US20030121845A1 Fluted filter media for air filter Public/Granted day:2003-07-03
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