Patent ID: 8132521
Filing Date: 2012-03-13
Classification: A01C

Abstract:
1. A volumetric metering system for metering a product in a seeding machine having a product tank and a distribution system for distributing the metered product having a plurality of separate product runs, said metering system comprising: a meter roller having a plurality of roller segments aligned along a roller axis for metering product from the tank to the distribution system; a plurality of gates disposed axially along the meter roller between the meter roller and the distribution system with one gate associate with each separate product run of the distribution system, each gate being movable between an open position in which product is allowed to flow from the meter roller to the associated product run of the distribution system and a closed position in which product is prevented from flowing from the meter roller to the associated product run of the distribution system; and a plurality of actuators arranged to selectively move the gates from the open to the closed positions, the actuators having extendable rods disconnected from the gates that extend from the respective actuator when the actuator is energized and retract when the actuator is not energized, the extendable rods pushing on the gates to move the gates to the closed positions.