US 12,076,676 B2
Pre-cleaning air filter
Robert A. Bannister, Stoughton, WI (US); Kelly A. Detra, Brooklyn, WI (US); Joel Roltgen, DeForest, WI (US); and Mark V. Holzmann, Stoughton, WI (US)
Assigned to Cummins Filtration IP, Inc., Columbus, IN (US)
Filed by Cummins Filtration IP, Inc., Columbus, IN (US)
Filed on Oct. 20, 2020, as Appl. No. 17/074,844.
Application 17/074,844 is a division of application No. 15/535,189, granted, now 10,898,839, previously published as PCT/US2015/066579, filed on Dec. 18, 2015.
Claims priority of provisional application 62/094,314, filed on Dec. 19, 2014.
Prior Publication US 2021/0031130 A1, Feb. 4, 2021
Int. Cl. B01D 45/08 (2006.01); B01D 46/00 (2022.01); B01D 46/24 (2006.01); B01D 50/20 (2022.01)
CPC B01D 45/08 (2013.01) [B01D 46/0004 (2013.01); B01D 46/0005 (2013.01); B01D 46/0039 (2013.01); B01D 46/0041 (2013.01); B01D 46/0045 (2013.01); B01D 46/0046 (2013.01); B01D 46/2414 (2013.01); B01D 50/20 (2022.01); B01D 2275/206 (2013.01)] 23 Claims
OG exemplary drawing
 
1. A filter element, comprising:
a filter media configured to be secured within a housing, the housing including an inlet configured to accept a fluid for filtering, the filter media including a circumferential outer surface;
an end cap positioned at and coupled to one end of the filter media; and
a local baffle positioned relative the filter media at a position such that, when the filter media is correctly installed within the housing, the local baffle is proximate the inlet of the housing and blocks only an area of the filter media that is in a line of flow at the inlet, the local baffle corresponding to the shape and size of the inlet and extending around only a portion of the circumferential outer surface of the filter media in a radial direction.