Patent ID: 8944178
Filing Date: 2015-02-03
Classification: E02F

Abstract:
1. A tongue-pulled spreader and grader system, comprising: a. a frame, having a pair of spaced apart sidewalls; b. at least one blade positioned between the sidewalls for making contact to a surface to be graded; c. an axle spanning across and positioned above the sidewalls, the axle having first and second ends; d. a brace mounted on each of the first and second ends of the axle, at a first end of each brace, with a second end of each brace being secured to a rotatable wheel; e. a mounting member extending from a midpoint of the axle at a first end of the mounting member and pivotably mounted to a cross brace secured to the frame at a second end of the mounting member; f. a mechanically electrically driven motor mounted on the frame and connecting to the mounting member for imparting movement to the mounting member which imparts rotational movement to the axle so that the wheels are rotated upward from a first position resting on the surface to a second position above the surface and above a level of the blade, wherein the blade is simultaneously lowered to cut into the surface as the frame is pulled along the surface; and g. the electrically driven motor further imparting rotation of the axle in an opposite direction to move the wheels from the second position above the blade to return to the first position resting on the surface wherein the at least one blade is also simultaneously raised to a position no longer in contact with the surface.