Patent ID: 7549544

Claim:
A material separator comprising: a mechanical bucket defining an inner volume for receiving material therein, the mechanical bucket adapted to couple to a vehicle, the mechanical bucket movable between a first location and a second location by use of the vehicle; an agitator removably secured to a bottom portion of the mechanical bucket, wherein the agitator comprises: a frame; a plurality of shafts rotatably coupled within the frame and operationally coupled to a motor, wherein axes of the plurality of shafts are substantially parallel and wherein the disc assembly is activated by the motor; a plurality of scalping agitators coupled to each shaft of the plurality of shafts; and a plurality of screening spaces each having a predetermined spacing, each spacing of the plurality of screening spaces defined between edges of the plurality of scalping agitators of one shaft and edges of the plurality of scalping agitators of an adjacent shaft, wherein the material received within the bucket and placed on a top side of the agitator rests on the top side of the agitator when deactivated, the agitator adapted to separate smaller material from larger material of the material received within the bucket on the top side of the agitator when activated, the smaller material being passed through the plurality of screening spaces and deposited at the first location and the larger material remaining in the bucket resting on the top side of the agitator; and a sub-base removably coupled to the bottom portion of the mechanical bucket, the sub-base adapted to removably secure the agitator to the bucket.