Patent ID: 11927162
Assignee: MANN+HUMMEL FILTRATION TECHNOLOGY US LLC
Field: Chemical engineering (Chemistry)
Classification: CPC F  B | IPC B  F

Claim 0:
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.