US 12,138,574 B2
Air Filter Arrangement; Assembly; and, Methods
Gregory Reichter, Bloomington, MN (US); Wayne R. W. Bishop, St. Louis Park, MN (US); Benny Nelson, Bloomington, MN (US); Darrel Wegner, Burnsville, MN (US); Bruce Crenshaw, Frankfurt, IN (US); Vladimir Kladnitsky, Eagan, MN (US); Donald Mork, Lime Springs, MN (US); Kevin Schrage, Spring Valley, MN (US); Richard Osendorf, West St. Paul, MN (US); Bradley Kuempel, Eden Prairie, MN (US); Thomas Lundgren, Bloomington, MN (US); Jordan Flagstad, East Bethel, MN (US); and Thomas G. Miller, Eagan, MN (US)
Assigned to Donaldson Company, Inc., Bloomington, MN (US)
Filed by Donaldson Company, Inc., Bloomington, MN (US)
Filed on Oct. 17, 2023, as Appl. No. 18/488,129.
Application 18/488,129 is a continuation of application No. 17/101,996, filed on Nov. 23, 2020, granted, now 11,826,689.
Application 17/101,996 is a continuation of application No. 16/119,121, filed on Aug. 31, 2018, granted, now 10,864,475, issued on Dec. 15, 2020.
Application 16/119,121 is a continuation of application No. 14/935,860, filed on Nov. 9, 2015, granted, now 10,065,145, issued on Sep. 4, 2018.
Application 14/935,860 is a continuation of application No. 14/165,042, filed on Jan. 27, 2014, granted, now 9,180,399, issued on Nov. 10, 2015.
Application 14/165,042 is a continuation of application No. 13/952,987, filed on Jul. 29, 2013, granted, now 8,636,820, issued on Jan. 28, 2014.
Application 13/952,987 is a continuation of application No. 11/795,178, granted, now 8,496,723, issued on Jul. 30, 2013, previously published as PCT/US2006/001021, filed on Jan. 12, 2006.
Claims priority of provisional application 60/644,094, filed on Jan. 13, 2005.
Prior Publication US 2024/0149203 A1, May 9, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. B01D 46/52 (2006.01); B01D 46/00 (2022.01)
CPC B01D 46/526 (2013.01) [B01D 46/0005 (2013.01); B01D 2271/022 (2013.01)] 34 Claims
OG exemplary drawing
 
1. An air filter cartridge comprising:
(a) a filter media pack comprising filter media and having an air inlet flow face and an air outlet flow face opposite the air inlet flow face, and a central flow axis through the air inlet flow face and the air outlet 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 air inlet flow face and the air outlet flow face;
(b) first and second side pieces positioned on the first pair of first and second opposite sides of the filter media pack, respectively, wherein:
(i) the first and second side pieces being configured to seal the first pair of first and second opposite sides of the filter media pack against 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:
(i) the housing seal arrangement comprises a seal member that forms a pinch seal between housing pieces, in use;
(ii) the seal member extends across the second pair of first and second opposite sides of the media pack so that the seal member extending across the second pair of first and second opposite sides of the media pack is arranged in a plane that is non-parallel to a plane perpendicular to the central flow axis; and
(iii) the pinch seal, along a complete extension around the media pack, is spaced, along the central flow axis, from each of the first flow face and the second flow face.