Patent ID: 6926091

Claim:
A counter-rotating twin shaft gardening/landscaping system, comprising: a frame; a first shaft mounted within the frame for rotation in a first direction; a second shaft mounted within the frame for rotation in a second direction which is opposite to the first direction, the second shaft being mounted in a substantially parallel plane with the first shaft; a driving shaft operatively connected to the first and second shafts for driving the first shaft in the first direction and the second shaft in the second direction; a first ground manipulation device attached to the first shaft, the first ground manipulation device having a planar section extending substantially perpendicular to the first shaft and an outer engaging edge having a plurality of irregularities; a second ground manipulation device attached to the second shaft, the second ground manipulation device having a planar section extending substantially perpendicular to the second shaft and an outer engaging edge having a plurality of irregularities; and at least a select one of the first and second ground manipulation devices including a plurality of arms extending outwardly from the planar section, each arm having a first end and a second end being coupled to the planar section to form a closed loop with the planar section, wherein the planar sections of the first and second ground manipulation devices cooperate to penetrate a top surface of the ground, and wherein the arms engage the ground to deflect the soil away from the planar section of the select ground manipulation device.