Patent ID: 7615091

Claim:
A removable and replaceable air filter element for use in an air cleaner; the filter element comprising: (a) a center board including an extension having: first and second, opposite ends; and first and second side edges extending between the first and second ends; (b) filter media oriented around, and secured to, the center board; (i) the filter media being con figured for straight through flow and comprising a first fluted filter sheet secured to a second filter sheet and coiled around the center board into a coiled media construction having: an inlet face; an opposite outlet face; and, a plurality of flutes extending between the inlet and outlet faces; each of the flutes having a first end portion and a second end portion; selected ones of the flutes comprising inlet flutes open at an end portion adjacent the inlet face and closed at an end portion adjacent the outlet face; and selected ones of said flutes being outlet flutes closed at an end portion adjacent the inlet face and open at an end portion adjacent the outlet face; (ii) the filter media and center board forming a filter clement having a non-circular cross-section with opposite rounded ends; and (iii) the filter element being closed to passage of unfiltered air therethrough, without filtering passage through the media; (c) a seal member positioned at a location for forming a seal between the filter element and an air cleaner housing, in use; (d) a frame construction comprising an annular sealing support for compressing the seal member with an air cleaner housing, the frame construction being constructed for engagement with the center board; and (e) a handle member secured to the center board and the frame construction such that a pulling force applied to the handle member translates to a pulling force applied to the filter element.