Patent ID: 8393502

Claim:
The combination comprising: an upright seed bin presenting a lower outlet end; a primary delivery gate located above said lower outlet end and shiftable between a closed position preventing flow of seed from the outlet end, and a plurality of open positions allowing flow of seed from the outlet end; a metering gate assembly operably coupled with said bin and including— a hopper having an upper end in communication with said lower outlet end of said bin, and a lower output end; a slidable metering gate member oriented for selective sliding movement between a fully closed position preventing flow of seed from said lower output end, and an open position presenting an open passageway permitting flow of seed from the lower output end, mechanism operably coupled with said metering gate member in order to slidably move the metering gate member between said closed and open positions; and apparatus operably coupled with said metering gate member in order to determine the travel of said metering gate member between said fully closed position and a plurality of open positions presenting respective, differently sized open passageways, each of said open passageways being substantially quadrate in plan configuration.