Abstract: A tool carrier assembly of an earthworking implement is comprised of two components that contact a surface being worked; an earthworking tool and a depth guide. The tool carrier assembly is pivotably connected to a support structure. The support structure is removably attached to a lift arm assembly of a motive source. As the front wheels of the motive source are raised off the ground by downward force applied to the lift arm assembly, the depth guide assumes the function of bearing the load of the implement and a portion of the motive source. The vehicle steered and powered by the rear wheels may then move in any direction and the tool carrier assembly will articulate on a controllably variable vertical axis. As the earthworking tool moves material on the surface, the tool carrier pivots about a controllably variable horizontal axis to maintain contact with the surface as the tool carrier assembly pivots in response to uneven terrain.

Abstract: The earthworking tool of the implement is an assembly comprised of an elongated cutting edge with a vertically extending blade that is connected to a rotatable ground contact roller or rollers or other depth control device. The earthworking assembly is adjustably attached to and pivotably connected to a vertically extending yoke, which is in turn pivotably connected at it's upper midpoint, to a vertical mast. The mast is journalled by an overhead frame assembly which is removably attached to a skidsteer or other general purpose utility vehicle. As the front wheels of the skidsteer are raised off the ground, the rollers on the earthworking assembly assume the function of bearing the load of the implement and also a portion of the weight of the skidsteer. The vehicle, steered and powered by the rear wheels, may then move in any direction and the earthworking implement will articulate on a vertical axis.

Abstract: A method of working or shaping a surface in situ. The earthworking tool of the invention is engaged with the surface in situ and is propelled about the surface by the motive source. The motive source is capable of moving the apparatus in any direction on the surface while it is engaged in working the surface. The tool carrier assembly of the apparatus is pivotably attached to the motive source and may be urged to rotate about an axis that is somewhat perpendicular to the surface being worked. The earthworking tool may then be moved in any other direction desired, by the action of the motive source, without disengaging the earthworking tool from the surface being worked.

Abstract: The earthworking tool of the implement is an assembly comprised of an elongated cutting edge with a vertically extending blade that is rigidly connected to a rotatable ground contact roller or rollers by rigid end plates. The earthworking assembly is adjustably attached to and pivotably connected to a vertically extending yoke, which is in turn pivotably connected at it's upper midpoint, to a vertical mast. The mast is journalled by an overhead frame assembly which is removably attached to a skidsteer or other general purpose utility vehicle. As the front wheels of the skidsteer are raised off the ground, the rollers on the earthworking assembly assume the function of bearing the load of the implement and also a portion of the weight of the skidsteer. The vehicle, steered and powered by the rear wheels, may then move in any direction and the earthworking implement will articulate on a vertical axis.