| 主权项 |
1. An air filter cartridge arrangement removeably installable in an air cleaner housing during use; the air filter cartridge arrangement comprising:
(a) a main filter media pack having:
(i) an inlet flow end and an opposite outlet flow end;(ii) a plurality of inlet flow flutes open at the inlet flow end and closed to passage of unfiltered air from the outlet flow end;(iii) a plurality of outlet flow flutes closed to passage of unfiltered air therein and open to outlet flow at the outlet flow end; and,(iv) a non-circular cross-sectional shape comprising an oval shape with two, opposite, straight sides and two, opposite, curved ends; and, (b) an arrangement surrounding the main filter media pack including at least a first oval radially outwardly projecting ribs thereon;
(i) the arrangement surrounding the media pack including a handle member under which at least a portion of a person's fingers can fit, between the handle member and a portion of the arrangement surrounding the media pack, at a location in overlap with a curved end of the oval shape; and,the first rib being positioned: between the portion of the handle member under which at least a portion of a person's finger can fit and the outlet flow end; and, spaced from the outlet flow end toward the inlet flow end; and, (c) an arrangement positioned on the media pack including a portion surrounding the media pack adjacent the outlet flow end; and, including a portion in axial overlap with the outlet flow end of the media pack. |
