Patent ID: 8496723

Claim:
An air cleaner assembly comprising: (a) a housing defining an interior having an inlet section, an outlet section and a housing separation region defined by opposite flanges; (i) the outlet section including an air flow outlet; and (ii) the inlet section including an air flow inlet; (iii) the housing having a first pair of opposite housing sides and a second pair of opposite housing sides; (A) the first pair of opposite housing sides, each having a length, in extension between each member of the second pair of opposite sides, that is larger than a length of each one of the second pair of opposite sides in extension between each one of the first pair of opposite sides; and, (b) a filter cartridge positioned within the housing interior; the filter cartridge comprising: (i) a media pack comprising a stack of strips of fluted media secured to facing media to define a media pack with opposite inlet and outlet flow faces and with inlet and outlet flutes directed therebetween; and (ii) a housing seal arrangement surrounding the media pack in a plane not parallel to either one of the inlet face and outlet face; (iii) the filter cartridge being positioned with an angle X between the outlet flow face and the air flow outlet of at least 10° and not greater than 80° and with the strips of fluted media defining media planes directed at an angle greater than 10° and not more than 80° relative to the air flow outlet; and, (iv) the media pack being a blocked, stacked arrangement wherein each face and side of the media pack intersects each adjacent face and side at 90 °; (v) the media pack having a first pair of opposite sides and a second pair of opposite sides; (A) each member of the first pair of opposite sides having a first dimension of length, in a direction parallel to the inlet face and outlet face; and, (B) each member if the second pair of opposite sides having a second dimension of length, in a direction parallel to the inlet face and outlet face; (C) the first dimension of length being longer than the second dimension of length; and, (D) the seal arrangement extending across each member of the first pair of opposite sides, along a path not parallel to the inlet face and outlet face; (c) the housing separation region, in extension across the first pair of opposite sides, extending at an angle non-parallel to the outlet flow face.