Patent ID: 7635403
Filing Date: 2009-12-22
Classification: B01D,Y10T

Abstract:
1. An air cleaner comprising: (a) a housing having an inlet end, an opposite outlet end, and a sidewall extending between the inlet end and outlet end; (b) a filter element having a seal member operably installed and sealed in the housing; the filter element having first and second opposite flow faces; the filter element including media having a plurality of flutes; each of the flutes having an upstream portion adjacent to the first flow face and a downstream portion adjacent to the second flow face; selected ones of the flutes being open at the upstream portion and closed at the downstream portion; and selected ones of said flutes being closed at the upstream portion and open at the downstream portion; (c) an access cover removably positioned over the access opening; the access cover being between the inlet end and the outlet end; and