Patent ID: 8162071
Filing Date: 2012-04-24
Classification: A01B,A01C

Abstract:
1. An implement for conditioning the surface of the ground while being moved there-over, said implement comprising a rigid frame assembly having a pair of aerator rollers journalled thereon for rolling engagement with the ground surface, said pair of aerator rollers being located one behind the other in tandem relation relative to the direction of travel of the implement during use thereof, each said aerator roller having a plurality of formations that penetrate the ground surface, said formations being disposed in selected spaced apart relation circumferentially around and longitudinally along the aerator roller associated therewith, and drive means interconnecting said aerator rollers inter-relating rotation of the same in a predetermined ratio, said rigid frame including an aerator roller depth control means, said aerator roller depth control means comprising a pair of spaced apart pivot arms pivotally connected to said rigid frame supporting rolling means journalled thereon, and means for pivoting said arms and raising said frame and at least said rear aerators a selected height with respect to the ground whereby an upper end of each one of said pair of pivot arms connect to a longitudinal beam, said longitudinal beam pivotally connecting to a proximal end of an extendable/retractable longitudinal member, the distal end of said extendable/retractable longitudinal member being pivotally connected to said rigid frame whereby extending said extendable/retractable longitudinal member pivots said pair of pivot arms forcing said rolling means down and thereby raising said rigid frame and at least said rear aerator roller with respect to the ground.