Patent ID: 7264064

Claim:
In combination with a hydraulically-driven agricultural implement having a tongue adapted to be pivotably attached to the drawbar of a tractor, and an agricultural tractor having a PTO shaft with a longitudinal horizontal axis extending along a line generally parallel to the direction of travel of the tractor, a hydraulic pump drive comprising: an hydraulic pump with an input shaft, said pump affixed to an upper pivot plate that is, in turn, rotatably affixed to the tongue at a first location by a support pivot pin having a generally vertical axis; a horizontal tongue pivot plate rigidly affixed to the tongue and extending forwardly therefrom, said tongue pivot plate rotatably affixed at a second location to the drawbar by a tongue pivot pin having a generally vertical axis, the generally vertical axes of said support pivot pin and said tongue pivot pin being vertically axially aligned; a mechanism interconnecting said drawbar and said upper pivot plate such that said input shaft is directed toward the tractor regardless of the angle of the tongue relative to the direction of travel of the tractor; and a PTO assembly interconnecting said pump input shaft and the PTO shaft.