US Patent 10481617 Metering system for an agricultural system

A metering system includes a first meter roller, such that the first meter roller includes many protrusions, such that each protrusion of the many protrusions drives flowable particulate material downwardly in response to rotation of the first meter roller. Furthermore, the metering system includes a drive shaft that is driven in rotation and a first transmission assembly that establishes a first direct mechanical linkage between the drive shaft and the first meter roller, such that the first transmission assembly shifts between a first plurality of gear ratios to drive the first meter roller in rotation at a respective first plurality of different speeds relative to the drive shaft.