Patent ID: 7409743
Filing Date: 2008-08-12
Classification: A01D

Abstract:
1. An apparatus for cleaning the air discharged from an agricultural harvester, comprising: a. an elongated separation housing having an inlet end and a outlet end, said inlet end including an upper chute, a lower chute, and a separation wall therebetween, said upper chute and said separation wall extending within said housing from said inlet end to said outlet end, and said lower chute extending from said inlet end to a clean air discharge intermediate said inlet end and said outlet end; and, b. a separation chamber, said separation chamber having an upper input end, a lower output end, and a downwardly inclined passageway extending between said input end and said output end, said input end being interconnected to said outlet end of said housing, whereby air entering said upper chute of said inlet end is dirty, having a higher concentration of dirt and debris than air entering said lower chute of said inlet end and said separation wall prevents commingling of air passing through said upper and lower chutes.