Patent ID: 7935160

Claim:
A filter assembly comprising an inlet for receiving fluid containing contaminant, a pre-cleaner removing at least some of said contaminant, a contaminant tray having a collection plenum collecting at least some of said contaminant removed by said pre-cleaner, a housing removably receiving said contaminant tray, a filter element mounted to said contaminant tray and removable therewith from said housing for servicing, said filter element trapping said contaminant in said contaminant tray including when said contaminant tray is removed from said housing, whereby to prevent spillage of said contaminant during said servicing, said housing having an outlet receiving fluid flow after passage through said filter element, said outlet discharging clean filtered fluid, wherein said filter element defines an inlet plenum and an outlet plenum on respective first and second distally opposite sides thereof, said inlet plenum is in said contaminant tray, said outlet plenum is in said housing, said inlet plenum communicates with said inlet and receives said fluid containing contaminant, said outlet plenum communicates with said outlet and discharges said clean filtered fluid thereto, said collection plenum is provided by said inlet plenum.