Patent ID: 9470454
Filing Date: 2016-10-18
CPC Classification: F26B,Y10T

Claim Text:
1. An aeration system for retrofitting a grain bin, the collapsible aeration system comprising: a plurality of trapezoidal duct sections, each of the duct sections comprising an outer surface having air openings, wherein each of the plurality of duct sections has a flat outer surface, a flat inner surface narrower than the outer surface, and first and second flat angled surfaces connecting the inner and outer surfaces, the duct sections each defining an internal air space, wherein the duct sections are connected together by abutting the first angled surface of each duct section with the second angled surface of an adjoining duct section; and an air duct disposed in the outer surface of one of the duct sections, the air duct connectable to an air inlet in the grain bin for delivering air through the air openings into the grain bin for aerating grain in the grain bin.