A land plane that may be moved over an agricultural field to smooth any irregularities in the surface of the field is pulled by a tow vehicle and has a blade assembly in a general diamond shape. The general diamond shape may be between 30 and 35 feet wide and 35 and 40 feet long. Thus, the land plane may have a sufficient length for drag and earth moving capability to economically and properly level a field, and a sufficient width to cover a substantially large area in single pass over the field. Further, the land plane may have foldable wing sections that enable the land plane to be transported over a typical state or county road or highway.

An implement attachment device for tractors allowing for easy and quick attachment of implements and tools to a tractor bucket along with correspondingly easy and quick detachment of such implements and tools, wherein such device may itself may be readily connected or disconnected to the bucket and while connected may be easily switched from a bottom use-ready position to a top stowed position in relation to the tractor bucket.

A grading implement features a frame with at least one movable section carried by a main frame section. Each movable section is movable relative thereto between a storage position and a working position reaching further laterally outward from the main section to increase a working width of the implement. An underside of each movable section features a respective blade adjustably mounted thereto for selective adjustment between different relative blade positions relative to the movable section. One embodiment features outboard blades on two movable sections, inboard blades on another two movable sections, and a rear blade mounted centrally on the main section behind the inboard and outboard blades. A dust suppression system features spray nozzles distributed across the main frame section behind the blades, and storage tanks mounted atop the main section so that weight of the dust suppression agent provides extra downforce to the blades.

An earth moving implement incorporating left and right rails; a bucket between the left and right rails; left and right pivot axles interconnecting the bucket and the left and right rails for rotating the bucket between earth scooping and blading position; left and right arms extending leftwardly and rightwardly from the bucket's left and right ends, the arms' proximal ends underlying the left and right rails; left and right linear motion actuators respectively positioned leftwardly and rightwardly from the left and right rails, the actuators having bucket ends pivotally attached to the left and right arms; left and right columns rigidly positioned at the rails' rearward ends, the actuators' base ends being pivotally attached to the left and right columns for rotating the bucket; a plurality of wheels rollably mounted to the rails' rearward ends; and a towing tongue rigidly extending from the rails' forward ends.

A grading machine may include a machine body, a grading blade, at least one grading blade sensor configured to sense a position and orientation of the grading blade, a drawbar connecting the grading blade to the machine body, at least one drawbar sensor configured to sense a position and orientation of the drawbar, a user interface, and a control system. The control system may be configured to receive an input from the user interface and position and orient the grading blade and the drawbar to one of a plurality of predetermined ditching positions based on the input.

Detecting a surface irregularity on a surface for a vehicle moving forwardly or rearwardly along the surface, the vehicle having a frame supported by wheels and an implement adjustably coupled to the frame. Two of front and rear steering positions and an implement position are used to determine a path of travel of the vehicle. Surface irregularities of the surface within the path of travel are determined which triggers a warning to the vehicle. The speed of the vehicle can be decreased automatically to stop the vehicle before the vehicle impacts the surface irregularity. A vehicle zone of operation is determined based on the path of travel and a corresponding pair of gridlines is displayed on user interface. The pair of gridlines vary in shape, color, position, and orientation as the path of travel changes. The surface irregularity is illuminated relative to the pair of gridlines on the operator display.

Systems and methods for trenchless placement of an underground protective network of intertwined cables for protecting buried assets from accidental damage are disclosed. The system includes an apparatus for towing behind a vehicle and laying a plurality of continuous cables directly underground and interweaving the cables to form a cable network. The apparatus includes a plurality of soil rippers mounted at respective radial positions to a rotating carrier. The rotating carrier rotates about an axis that is at least partially normal to the ground surface. The rippers plow through the ground in the direction of vehicle travel and include a cable-feeding guide for directly and continuously feeding cable out underground during operation. In operation, the combined movement of the soil rippers from rotating the carrier and movement in the direction of travel serves to intertwine the cables deposited by respective rippers forming the protective network of intertwined cables.

A controller controls a first drive source and a second drive source based on a moving speed of a motor grader measured by a speed sensor and a turning angular velocity of the motor grader measured by an IMU, to thereby independently control a rotation speed of each of a right front wheel and a left front wheel.

Systems and methods for trenchless placement of an underground protective network of intertwined cables for protecting buried assets from accidental damage are disclosed. The system includes an apparatus for towing behind a vehicle and laying a plurality of continuous cables directly underground and interweaving the cables to form a cable network. The apparatus includes a plurality of soil rippers mounted at respective radial positions to a rotating carrier. The rotating carrier rotates about an axis that is at least partially normal to the ground surface. The rippers plow through the ground in the direction of vehicle travel and include a cable-feeding guide for directly and continuously feeding cable out underground during operation. In operation, the combined movement of the soil rippers from rotating the carrier and movement in the direction of travel serves to intertwine the cables deposited by respective rippers forming the protective network of intertwined cables.

A controller controls a first drive source and a second drive source based on a rotation speed of a right rear wheel measured by a rotation speed sensor and a rotation speed of a left rear wheel measured by a rotation speed sensor, to thereby independently control a rotation speed of each of a right front wheel and a left front wheel.