US 11,724,220 B2
Undulated interlocking housing-endplate interface geometry
Philip M. Ouweleen, Cookeville, TN (US); Zemin Jiang, Cookeville, TN (US); Ted S. Loftis, Cookeville, TN (US); Karthik Kothakota, Cookeville, TN (US); Mano Raj Sekar, Columbus, IN (US); Mark J. Johnson, Cookeville, IN (US); Aaron M. Wells, Cookeville, TN (US); Robert A. Bannister, Ames, IA (US); Joshua Crooks, Cookeville, TN (US); Brian M. Palmer, Cookeville, TN (US); Sean M. Grabein, Rock Island, TN (US); and Connor D. Oren, Cookeville, TN (US)
Assigned to CUMMINS FILTRATION IP, INC., Columbus, IN (US)
Appl. No. 16/487,209
Filed by CUMMINS FILTRATION IP, INC., Columbus, IN (US)
PCT Filed Feb. 20, 2018, PCT No. PCT/US2018/018724
§ 371(c)(1), (2) Date Aug. 20, 2019,
PCT Pub. No. WO2018/156489, PCT Pub. Date Aug. 30, 2018.
Claims priority of provisional application 62/461,497, filed on Feb. 21, 2017.
Prior Publication US 2020/0384395 A1, Dec. 10, 2020
Int. Cl. B01D 35/30 (2006.01); B01D 29/15 (2006.01); B01D 46/00 (2022.01); B01D 46/24 (2006.01)
CPC B01D 35/30 (2013.01) [B01D 29/15 (2013.01); B01D 46/009 (2013.01); B01D 46/2414 (2013.01); B01D 2201/295 (2013.01); B01D 2201/4053 (2013.01); B01D 2201/4076 (2013.01); B01D 2201/4092 (2013.01); B01D 2201/52 (2013.01); B01D 2265/021 (2013.01); B01D 2265/026 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A filter element comprising:
filter media; and
a first endplate coupled to the filter media, the first endplate comprising:
a top surface,
a bottom surface parallel to and displaced from the top surface,
an opening passing through the top surface and the bottom surface,
a first wall positioned between the top surface and the bottom surface and projecting radially outward of the first endplate, the first wall having a pattern comprising a plurality of curved surfaces projecting radially outwards of the end plate and a plurality of indents located between each of the plurality of curved surfaces and projecting radially inwards into the first wall such that the pattern defines an outer circumferential uneven surface structured to mesh with a matching pattern formed on an inner surface of a shell housing when the filter element is installed in the shell housing, an upper surface of the first wall defining a gasket retaining lip, a lower surface of the first wall defining a housing support lip, the gasket retaining lip and the housing support lip each having a variable outer radius that matches a profile of the outer circumferential uneven surface, the housing support lip being a planar surface that is continuous along an entire perimeter of the first endplate, and
a gasket retaining wall engaged with and extending axially away from the gasket retaining lip, the gasket retaining wall at least partially defining the opening.