Patent ID: 8360249

Claim:
A motor driven crusher for crushing material, the crusher comprising: a frame removably coupled to a mechanical bucket; a plurality of shafts rotatably coupled within the frame and operationally coupled to the motor, wherein axes of the plurality of shafts are substantially parallel; a sub-base removably securing the plurality of shafts within the frame; a plurality of crushing agitators coupled to each shaft of the plurality of shafts, wherein the crushing agitators each comprise a protrusion; and a plurality of screening spaces each having a predetermined spacing, each spacing of the plurality of screening spaces defined between sides of adjacent crushing agitators of one shaft, an edge of the one shaft and an edge of a crushing agitator of an adjacent shaft, wherein material placed on a top side of the crusher is agitated and crushed by the protrusions of the plurality of crushing agitators in response to rotation of the plurality of shafts, screening small material through the plurality of screening spaces while crushing the larger material on the top side of the crusher to fit within the plurality of screening spaces.