Patent ID: 7972401
Filing Date: 2011-07-05
Classification: B01D,F02C,F04B,F24F

Abstract:
1. An air intake filter assembly for filtering air flowing from a front end to a rear end of the assembly, the assembly comprising, a first housing, a first filter stage for filtering the air received at the front end, the first filter stage insertable in and removable from the first housing, a second filter stage for filtering air that has passed through the first filter stage, the second filter stage including a second housing and a plurality of panel filter elements supported by the second housing and arranged such that the panel filter elements are not parallel to one another, the second housing insertable in and removable from the first housing, a latch having a latched position in which the first filter stage is secured to the first housing, and having an unlatched position in which the first filter stage is not secured to the first housing, a hinge formable between the first housing and the first filter stage when the first filter stage is inserted in the first housing, the hinge allowing the first filter stage to pivot with respect to the first housing, and wherein the latch in the latched position compresses the first filter stage against the second housing to define a seal at a perimeter of the second housing and compresses the second housing against the first housing to define a second seal therebetween to insure that the air exiting the assembly has passed through the first filter stage and the second filter stage.