Importance

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Abstract

A tank pressurization system is provided for delivering pressurized air from a pneumatic distribution system to a product tank in an air seeder. The tank pressurization system has a meter housing which has an air inlet in fluid communication with the pneumatic distribution system and an air outlet in fluid communication with the product tank. The meter housing has an air passage connecting the air inlet to the air outlet, providing fluid communication between the pneumatic distribution system and the product tank. A meter is rotatably mounted in the meter housing. Also, a tank pressurization system has a venturi port in a primary distribution manifold of the pneumatic distribution system, the venturi port having a standard airstream and a venturi for encouraging product from the product tank to enter the pneumatic distribution system at the venturi. A venturi pressure plate has a first orifice in fluid communication with the standard airstream of the venturi port, a second orifice in fluid communication with the product tank, and a pathway between the first orifice and the second orifice for providing fluid communication between the venturi port and the product tank.

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First Claim