US 11,951,429 B2
Air filter arrangement; assembly; and, methods
Gregory Reichter, Bloomington, MN (US); Wayne Bishop, St. Louis Park, MN (US); Benny K. Nelson, Waconia, MN (US); Darrel Wegner, Burnsville, MN (US); Bruce Crenshaw, Frankfort, IN (US); Thomas Miller, Grand Rapids, MN (US); Donald Mork, Lime Springs, IA (US); Kevin Schrage, Spring Valley, MN (US); Vladimir Kladnitsky, Eagan, MN (US); Richard Osendorf, St. Paul, MN (US); Bradley Kuempel, Eden Prairie, MN (US); Thomas Lundgren, Bloomington, MN (US); and Jordan Flagstad, East Bethel, MN (US)
Assigned to Donaldson Company, Inc., Bloomington, MN (US)
Filed by Donaldson Company, Inc., Minneapolis, MN (US)
Filed on May 27, 2021, as Appl. No. 17/303,371.
Application 17/303,371 is a continuation of application No. 16/573,112, filed on Sep. 17, 2019, granted, now 11,020,699.
Application 16/573,112 is a continuation of application No. 16/285,845, filed on Feb. 26, 2019, granted, now 10,421,034.
Application 16/285,845 is a continuation of application No. 15/387,820, filed on Dec. 22, 2016, granted, now 10,315,144.
Application 15/387,820 is a continuation of application No. 14/263,195, filed on Apr. 28, 2014, granted, now 9,527,023.
Application 14/263,195 is a continuation of application No. 13/616,087, filed on Sep. 14, 2012, granted, now 8,709,119.
Application 13/616,087 is a continuation of application No. 11/795,176, granted, now 8,292,983, previously published as PCT/US2006/001061, filed on Jan. 12, 2006.
Claims priority of provisional application 60/651,838, filed on Feb. 8, 2005.
Claims priority of provisional application 60/644,094, filed on Jan. 13, 2005.
Prior Publication US 2021/0394101 A1, Dec. 23, 2021
This patent is subject to a terminal disclaimer.
Int. Cl. B01D 46/00 (2022.01); B01D 46/52 (2006.01); B01D 46/62 (2022.01); F02C 7/05 (2006.01); F02M 35/024 (2006.01)
CPC B01D 46/0005 (2013.01) [B01D 46/0002 (2013.01); B01D 46/526 (2013.01); B01D 46/62 (2022.01); F02C 7/05 (2013.01); F02M 35/0245 (2013.01); F02M 35/02458 (2013.01); B01D 2271/02 (2013.01); B01D 2271/022 (2013.01); B01D 2279/60 (2013.01)] 27 Claims
OG exemplary drawing
 
1. An air filter cartridge comprising:
(a) a filter media pack comprising filter media and having a first flow face and a second, opposite, flow face, and a central flow axis through the first flow face and the second flow face;
(i) the filter media pack having a rectangular cross-sectional shape in a direction perpendicular to the central flow axis; and
(ii) the filter media pack comprising four sides, including a first pair of first and second opposite sides and a second pair of first and second opposite sides, extending between the first flow face and the second flow face;
(b) first and second side pieces positioned, respectively, on the first pair of first and second opposite sides of the filter media pack, wherein the first and second side pieces each comprise opposite end edges, wherein:
(i) at least one of the opposite end edges of each of the first and second side pieces are located beyond one of the first flow face or the second flow face of the filter media pack and facing in a direction away from the filter media pack;
(ii) the first and second side pieces being configured to seal the first pair of first and second opposite sides of the filter media pack againt air flow through the first pair of first and second opposite sides of the filter media pack; and
(c) a housing seal arrangement for sealing the air filter cartridge to an air cleaner housing, in use, wherein:
the housing seal arrangement comprises a seal member that includes a seal surface that forms an axially directed seal, in use;
(ii) the seal surface extends around a perimeter of the filter media pack between the first flow face and the second flow face; and
(iii) the at least one of the opposite end edges of each of the first and second side pieces are non-parallel to the seal surface of the seal member.