	US 11,927,162 B2
	Filter assembly
Willie L. Stamey, Jr., Kings Mountain, NC (US); and Nikolas H. Johansen, Charlotte, NC (US)
Assigned to Mann+Hummel Filtration Technology US LLC, Gastonia, NC (US)
Filed by MANN+HUMMEL Filtration Technology US LLC, Gastonia, NC (US)
Filed on Feb. 15, 2021, as Appl. No. 17/175,887.
Application 17/175,887 is a continuation of application No. 15/604,436, filed on May 24, 2017, granted, now 10,920,724, issued on Feb. 16, 2021.
Prior Publication US 2021/0277854 A1, Sep. 9, 2021
This patent is subject to a terminal disclaimer.
Int. Cl. F02M 37/32 (2019.01); B01D 27/00 (2006.01); B01D 27/08 (2006.01); B01D 29/11 (2006.01); B01D 35/00 (2006.01); B01D 35/30 (2006.01); F01M 11/03 (2006.01); F02M 37/42 (2019.01); F16N 39/06 (2006.01)

CPC F02M 37/32 (2019.01) [B01D 27/005 (2013.01); B01D 27/08 (2013.01); B01D 29/11 (2013.01); B01D 35/005 (2013.01); B01D 35/30 (2013.01); B01D 35/306 (2013.01); F01M 11/03 (2013.01); F02M 37/42 (2019.01); F16N 39/06 (2013.01); B01D 2201/301 (2013.01); B01D 2201/302 (2013.01); B01D 2201/304 (2013.01); B01D 2201/342 (2013.01); B01D 2201/347 (2013.01); B01D 2201/4076 (2013.01)]

8 Claims

1. A filter assembly comprising:

a housing defining a longitudinal axis and including an inner surface surrounding the longitudinal axis;

a proximal end cap disposed within the housing and defining a central aperture; and

a nut plate disposed within the housing and having a flange portion and an outer wall, the flange portion disposed within the central aperture, the outer wall having a plurality of protrusions circumferentially spaced about the longitudinal axis, each of the plurality of protrusions engaging the inner surface to prevent rotation of the nut plate relative to the housing,

wherein the inner surface includes a proximal portion having a proximal extent extending in a first direction, and a distal extent extending in a second direction transverse to the first direction and wherein the plurality of protrusions engage the proximal extent and the distal extent.