Patent ID: 8460425

Claim:
An air filter cartridge installable in use in an air cleaner housing having an access cover; the filter cartridge comprising: (a) first and second, opposite, end caps: (i) the first end cap having an air flow exit aperture therethrough; and, (ii) the second end cap being closed; (b) pleated filter media extending between the first and second end caps and surrounding and defining an open filter interior and a cartridge central longitudinal axis; (c) the first end cap including a seal member molded-in-place as a portion of the first end cap; (i) the seal member being integral with a remainder of the molded-in-place portions of the first end cap; and, the molded-in-place portions of the end cap having a hardness, Shore A, of no greater than 22; and, (d) the second end cap including a first member of a projection/receiver arrangement thereon positioned centrally on the second end cap and having a non-circular shape in cross-section in a plane perpendicular to the cartridge central longitudinal axis; (i) the non-circular shape comprising a plurality of spaced features configured for rotational interference with an air cleaner housing cover; (ii) the first member of a projection/receiver arrangement being positioned only in axial overlap with the open filter interior and not in axial overlap with any portion of the filter media.