International Truck Intellectual Property Company, LLC

Nelson Industries, Inc.

Michael J Mikolichek

Mark V Holzmann

Donald E Stiemke

Jon S Wake

An air filter housing ( ) includes twist and lock structure ( ) having a first position (FIGS. ) permitting axial movement ( ) of a cover ( ) and base ( ) relative to each other, and being rotatable in a first direction ( ) from the first position (FIG. ) to the second position (FIG. ), and in the second position (FIG. ) preventing axial movement of the base ( ) and cover ( ) relative to each other, and being rotatable in a second opposite direction ( ) from the second position (FIG. ) to the first position (FIG. ). Anti-rotation lock structure ( ) provides a rotational retention force holding the twist and lock structure ( ) in the second position (FIG. ).

Twist and lock filter housing with anti-rotation stop

An underhood air cleaner ( ) for a vehicle ( ) has an inlet shroud seal ( ) self-mounted to the filter housing ( ) at the filter inlet ( ) and engaging the hood ( ) at the exit opening ( ) of the hood air channel ( ). The self-mounting is accomplished without extra parts or fasteners such as bolts and clamps. Both axial ( ) and radial ( ) retention is provided for the shroud seal ( ) on the filter housing ( ), as well as reduced inflow restriction.

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Mayer, MN, United States of America

Michael J Mikolichek