Abstract: A blade assembly includes an adapter board including a lower tool bit attachment portion, terminating in a lower adapter board free end, the lower adapter board free end defining a bottom surface defining a plurality of shank receiving bores. A plurality of bushings are disposed in a corresponding one of the plurality of shank receiving bores.

Abstract: The Row Digger provides a tool that enables an operator of the Row Digger to remove dirt piles interfering with irrigation between crop field furrows and irrigation trenches. The Row Digger includes a frame capable of moving from a transportation position to an operation position. The Row Digger also includes a plurality of digger arms extending from a central hub and each terminating in a corresponding digging disc. The central hub is connected to the frame at a hub angle and is capable of rotation about a hub axis. Each digging disc is also connected to the corresponding digger arm at a disc angle. Each digging disc enters a crop furrow and utilizes the slopes of the ridges to create the rotation required about the hub axis and ensure a path of travel for the digging discs that removes the impeding dirt piles.

Abstract: The Row Digger provides a tool that enables an operator of the Row Digger to remove dirt piles interfering with irrigation between crop field furrows and irrigation trenches. The Row Digger includes a frame capable of moving from a transportation position to an operation position. The Row Digger also includes a plurality of digger arms extending from a central hub and each terminating in a corresponding digging disc. The central hub is connected to the frame at a hub angle and is capable of rotation about a hub axis. Each digging disc is also connected to the corresponding digger arm at a disc angle. Each digging disc enters a crop furrow and utilizes the slopes of the ridges to create the rotation required about the hub axis and ensure a path of travel for the digging discs that removes the impeding dirt piles.

Abstract: The slope angle of a blade on an earthmoving machine is automatically controlled based on measurements from a three-axis gyroscope, a blade slope angle tilt sensor, and a blade tip angle tilt sensor mounted on the blade. A three-axis gyroscope has high dynamic response and high resistance to mechanical disturbances but is subject to potentially unbounded errors. A tilt sensor has bounded errors but has a slow dynamic response and a high sensitivity to mechanical disturbances. The combination of a three-axis gyroscope and two tilt sensors provides an advantageous measurement system. Algorithms for performing proper fusion of the measurements account for the lack of synchronization between the three-axis gyroscope and the tilt sensors and also screen out invalid measurements from the tilt sensors. The blade slope angle is controlled based on a reference blade slope angle and an estimate of the blade slope angle computed from properly fused measurements.

Abstract: A track scraper for removing rubber from a racetrack is provided. The scraper comprises rotating blades that are moved along the surface of the track and that skim off portions of rubber that has been deposited on the track by race cars. The scraper is installed on and powered by a standard garden tractor.

Abstract: The nutrient device of the present invention includes a ground having a ground surface. The coulter is mounted for rotation about a coulter axis and the coulter penetrates the ground and makes the ground penetration below the ground surface. A cleaning wheel is mounted for rotation about a cleaning wheel axis, and the cleaning wheel extends upwardly from engaging the coulter to a cleaning wheel point spaced away from the coulter. A conduit is positioned to deliver a nutrient onto the coulter for dispensing the nutrient into the ground penetration. A closing wheel is positioned adjacent the rear of the coulter and the cleaning wheel for closing the ground penetration.

Abstract: A device for reconditioning a damaged sports surface. The device includes at least one rotatably driven shaft with two ends, one of which is connected to a frame, the other end being disposed towards the surface. The driven shaft is disposed orthogonal relative to the surface. A work head is connected to the shaft and is in contact with the surface. The work head is rotated by the shaft relative to the surface and reconditions the surface. A mobile device is disclosed.

Abstract: Soil cultivating apparatus which includes at least one rotary cutting assembly having a plurality of earth working implements (25, 26) spaced around a peripheral region of a rotary support member (18) mounted for rotation about a central upright axis of rotation. The implements (25, 26) depend downwardly from the support member (18) and are in first and second sets. Implements (25) of the first set each have a primary cutting edge extending upwardly, rearwardly and outwardly from a lower soil engaging extremity. Implements (26) of the second set each have a primary cutting edge extending upwardly rearwardly and inwardly from a lower soil engaging extremity. The lower soil engaging extremities of implements (25) of the first set are at a radial distance from the axis less than the radial distance of the extremities of the implements (26) of the second set.

Abstract: A rotatable tiller apparatus for use in mixing soils in situ, including: (a) a vertically oriented rotatable drive shaft, connected to and driven by a motor external to the apparatus; (b) a drive assembly connected to the drive shaft; (c) at least two vertically oriented, rotatable cutting shafts connected to the drive shaft through the drive assembly and at least one support plate; (d) a sprocket assembly within the drive assembly connected to the drive shaft, the sprocket assembly comprising at least one rotatable sprocket for each cutting shaft; (e) a device for rotating the sprockets in a direction counter to the rotation of the drive shaft, the device being driven by the motor, the sprockets being rotatable in the same direction and at the same speed as one another; and (f) at least two tine assemblies arranged vertically in tandem along each of the cutting shafts, each tine assembly including at least one tine with at least one blade at its end.

Abstract: Tool for soil cultivating machine, such as a weeding machine, hoeing machine, and vineyard plow, includes a rotor on which interchangeable tools are mounted. The tool comprises a fixing end located in an upper space zone, this end being arranged or configured so that it can be mounted with freedom of pivoting. The tool includes a connecting portion located in an intermediate space zone, the intermediate portion extending downwardly from the fixing end, and an active portion located in a lower space zone. The soil cultivating machine includes a rotor rotating about a vertical or substantially vertical axis and is provided, at its periphery, with interchangeable tools, wherein the rotor is arranged so as to enable the tools to be mounted with freedom of pivoting during operation.