US Patent 10945537 Expandable gravity-feed bin

A gravity-feed bin includes a generally hollow main bin having an open end, a storage reservoir and a dispensing chute. The dispensing chute has an opening disposed near a distal end. The bin includes a dispensing gate movable between open and closed positions. When the dispensing gate is in the closed position, the dispensing gate blocks the opening of the dispensing chute. One or more fins contact interior and/or exterior surfaces of the gate to provide cleaning functionality of the gate and/or sealing functionality between the gate and the dispensing chute.