US 11,691,101 B2
Filter element, systems, and methods
Jason A. Tiffany, Bloomington, MN (US); Brent L. Anderson, Cottage Grove, MN (US); Richard P. DeJong, Eden Prairie, MN (US); Andrew C. Dahlgren, Victoria, MN (US); Wim Van Gelder, Kessel-Lo (BE); Olivier Ronneau, Chapelle-Lez-Herlaimont (BE); Mathijs Verstraete, Tienen (BE); Gert Proost, Kessel-lo (BE); Massimo Movia, Enemonzo (IT); Eli Payton Ross, Faribault, MN (US); and Michael R. Carlson, Cottage Grove, MN (US)
Assigned to Donaldson Company, Inc., Minneapolis, MN (US)
Appl. No. 16/963,486
Filed by Donaldson Company, Inc., Minneapolis, MN (US)
PCT Filed Jan. 23, 2019, PCT No. PCT/US2019/014797
§ 371(c)(1), (2) Date Jul. 20, 2020,
PCT Pub. No. WO2019/147704, PCT Pub. Date Aug. 1, 2019.
Claims priority of provisional application 62/794,205, filed on Jan. 18, 2019.
Claims priority of provisional application 62/621,364, filed on Jan. 24, 2018.
Prior Publication US 2021/0046415 A1, Feb. 18, 2021
Int. Cl. B01D 46/24 (2006.01); B01D 46/00 (2022.01); B01D 46/52 (2006.01); F02C 7/052 (2006.01); B01D 46/58 (2022.01)
CPC B01D 46/2414 (2013.01) [B01D 46/0005 (2013.01); B01D 46/521 (2013.01); B01D 46/526 (2013.01); B01D 46/527 (2013.01); B01D 46/58 (2022.01); F02C 7/052 (2013.01); B01D 2271/027 (2013.01); B01D 2275/201 (2013.01); B01D 2279/60 (2013.01); F05D 2260/607 (2013.01)] 21 Claims
OG exemplary drawing
 
1. A filter element comprising:
(a) a tubular section of filter media; and
(b) first and second opposite open end caps secured to the filter media;
(i) each of the first and second end caps having a seal arrangement along an inner radial surface of each of the end caps;
(ii) each of the seal arrangements including a seal member having an inwardly radially directed seal surface and a thickness that varies along the seal member surface;
wherein the thickness of the seal member surface varies in a radial direction along the seal member surface.