Patent ID: 7237496

Claim:
A modular pump assembly for incorporation in an agricultural implement to be pulled by a tractor, the pump assembly comprising: a plurality of hydraulic pumps which can be supported on the agricultural implement proximate a tow bar and coupled one pump to another, the hydraulic pumps being coupled through one of the hydraulic pumps to a power take-off on the tractor, and the hydraulic pumps being connectable to respective hydraulic circuits on the agricultural implement to provide at least two optional configurations for selection by a customer, one with first and second hydraulic pumps and one with only the first hydraulic pump, each of the plurality of hydraulic pumps includes a front face having a shaft with an external spline, and an internal spline in an opening on a rear portion, each of a preceding one of the plurality of hydraulic pumps being coupled with a succeeding one of the plurality of hydraulic pumps by mating the opening and the internal spline of the preceding hydraulic pump with the shaft and the external spline of the succeeding hydraulic pump.