US Patent 7104207 Air seeder tank arrangement

An air seeder has two tanks for holding seed or other particulate matter. Each tank has a metering device at the bottom to meter out the contents of the tanks. A panel is positioned to cover and uncover a hole between the two tanks such that it can direct the contents of one tank into the other and also block off the metering device of the one tank. The panel is connected to a handle that extends outside the tanks so the operator can move the panel without entering the tank.