Patent ID: 7976603

Claim:
An air filter housing comprising: a first air filter housing part and a second air filter housing part that are connected to one another to form the filter housing, wherein the filter housing has a longitudinal axis, an air intake port and an air outlet port; an anti-rotation device operable to prevent rotation of said first and second housing parts relative to each other, said anti-rotation device including a toothed securing ring secured on a circumferential wall of said second housing part; an elongated actuation lever elongated in a direction coinciding with said longitudinal axis of said filter housing, said actuation lever integrated into and forming a portion of a circumferential wall of said first housing part, said elongated actuation lever and said circumferential wall each separating an interior of said filter housing from an exterior of said filter housing, said elongated actuation lever formed as a pivotable deflectable portion of said circumferential wall, said actuation lever including an actuating end; and an opposing securing end; wherein said securing end lockably engages said second housing part preventing said relative rotation; a locking connection that acts in a direction of the longitudinal axis and connects the first and second housing parts releasably to one another; wherein the locking connection has a release position when rotating the first housing part in at least one releasing rotational direction relative to the second housing part about the longitudinal axis, wherein in the release position the first and second housing parts are released from one another in the direction of the longitudinal axis, wherein the locking connection comprises at least one locking hook on the first housing part, said at least one locking hook projecting radially from said first housing part, wherein the at least one locking hook is elastically deflectable in a radial direction, wherein the locking connection further comprises at least one locking edge on the second housing part, said at least one locking edge projecting radially from said second housing part, wherein the at least one locking hook engages in the direction of the longitudinal axis the at least one locking edge, wherein the at least one locking hook and the at least one locking edge each have a free end relative to the at least one releasing rotational direction.