Patent ID: 8893817
Filing Date: 2014-11-25
Classification: A01B,A01C,E06C

Abstract:
1. A central product delivery system operative to provide particulate material to a plurality of row units of a stack-fold planter, the central product delivery system comprising: a plurality of frame members configured to be removably coupled to a rearward end of the stack-fold planter; first and second knuckles coupled to the plurality of frame members; first and second parallel linkages extending rearwardly from the first and second knuckles, respectively, each of the first and second parallel linkages having a fixed length; first and second wheel mounts coupled to an aft end of the first and second parallel linkages, respectively; first and second wheels coupled to the first and second wheel mounts, respectively; a cradle configured to support at least one bulk fill hopper; first and second lift arms extending downwardly from the cradle at an angle to the first and second knuckles, respectively, the first and second lift arms having a fixed length; and first and second hydraulic cylinders interconnected between the first and second wheel mounts and the first and second knuckles, respectively, and wherein the first and second hydraulic cylinders are configured to raise and lower the cradle and wherein the first and second lift arms remain above the first and second parallel linkages throughout a range of motion of the cradle.