Patent ID: 7682416

Claim:
An air cleaner arrangement including: (a) a housing having an inlet end and an opposite outlet end; (i) the housing sidewall including an access cover removable from a remainder of the housing; (b) a filter cartridge comprising: (i) a z-filter media construction comprising media formed from a fluted sheet secured to a facing sheet; and, defining opposite inlet and outlet flow ends; (ii) a filter cartridge sidewall construction surrounding the z-filter media construction, and having first and second, opposite, sides; (iii) a seal arrangement comprising a rubber like member mounted on the filter cartridge for sealing with the housing; (iv) a first projection arrangement extending outwardly from the first side of the filter construction sidewall construction; and, a second projection extending outwardly from the second side of the filter cartridge sidewall construction; and, (c) first and second biasing and lock blades secured to the access cover and projecting along opposite sides of the filter cartridge; (i) the first biasing and lock blade having a non-straight, contoured, forward edge in engagement with the first projection arrangement; and, (ii) the second biasing and lock blade having a non-straight, contoured, forward edge in engagement with the second projection arrangement; (iii) the forward edges of the biasing and lock blades engaging the filter cartridge to secure the filter cartridge in a sealing orientation.