Abstract: An alignment unit for use with an irrigation system comprises a housing, an alignment sensor, an alignment controller, and an actuator. The irrigation system may include a plurality of spans, each including a drive tower and a drive unit. The housing may house at least a portion of the alignment unit. The alignment sensor may measure a real-time alignment of the drive tower. The alignment controller may be in communication with the alignment sensor and may be operable to receive the real-time alignment of the drive tower and energize the drive unit based on a first range of real-time alignment values. The actuator may couple with the alignment controller and may reorient at least a portion of the alignment controller in relation to the alignment sensor.

Abstract: A hose-fed lateral move irrigation system and method that utilizes a pipe with a plurality of sprinklers attached to a wheeled cart that drags a flexible hose assembly therebehind while traveling laterally with the pipe and sprinklers relative to a field so that alternating the flexible hose assembly from one side of the cart to another as the cart traverses back and forth along a cart path is facilitated while kinking in the flexible hose assembly is avoided.

Abstract: A hose-fed lateral move irrigation system and method that utilizes a pipe with a plurality of sprinklers attached to a wheeled cart that pulls a flexible-hose assembly therebehind using at least one onboard winch and travels laterally with the pipe and sprinklers relative to a field so that a sufficient amount of hose may be used to enable total automation of the system.

Abstract: A truss-type support system for a water-carrying conduit of an irrigation system includes a plurality of elongated truss braces and at least one truss rod for interconnecting the truss braces. The truss braces each have a pair of interconnected legs separated by an angle of approximately 40°-70°.

Abstract: An irrigation pipe and method of fabrication that utilizes a pipe that is made of a durable material, e.g., stainless steel or aluminum. During fabrication, the pipe is equipped with a plurality of components, i.e., a flange assembly, a truss mount, and an outlet, without drilling, welding, or the like. In this manner, a method of fabrication is provided that enables a plurality of components to be assembled to the pipe without compromising the integrity of the pipe material or treated surface so that galvanizing or painting is not required after the plurality of components have been fitted to the pipe.

Abstract: A corner unit guidance control system for use with a corner unit that is part of a center pivot irrigation system includes an antenna, a receiver, and a controller. The antenna may be located along a vertical axis through the center of a wheel of the corner unit and may be operable to receive signals from at least one external positional information source. The receiver may be in communication with the antenna and operable to process the signals to produce position data corresponding to a current position of the wheel. The controller may be in communication with the receiver and may be programmed to steer the wheel to a heading corresponding to a difference between the current position of the wheel and a point along the path.

Abstract: An electric circuit for remotely starting and controlling the direction of a center pivot irrigation system comprises a first transformer, a second transformer, a first relay, a second relay, a third relay, and a fourth relay. The first transformer is coupled to a voltage source with a first voltage and may step the first voltage down to a second voltage. The second transformer is coupled to the first transformer, receiving a third voltage and stepping the third voltage up to a fourth voltage. The first relay may include contacts that are open when the irrigation system is started remotely. The second relay may include contacts that are closed when the irrigation system is started remotely. The third relay may include contacts that are closed momentarily to drive the system in a first direction. The fourth relay may include contacts that are closed momentarily to drive the system in a second direction.

Abstract: An irrigation machine is selectively converted into a sprayer for applying chemicals that have been approved for use only by spraying equipment. A method is disclosed for irrigating and spraying crops using the same conduit connected to either an irrigation ground water source or a sprayer-approved chemical source, but at no time is the conduit connected to both sources simultaneously. The method includes connecting the input of a conduit to a ground water source, irrigating the crops with water from the ground water source, disconnecting the input of the conduit from the ground water source, connecting the input of the same conduit to a sprayer-approved chemical source, and spraying the crops with chemical from the chemical source.

Abstract: A corner unit guidance control system for use with a corner unit that is part of a center pivot irrigation system includes a primary antenna, a secondary antenna, a receiver, and a controller. The primary antenna and the secondary antenna may receive signals from at least one external positional information source. The receiver may be in communication with the antennas and operable to process the signals to produce position data corresponding to a current position of a wheel and altitude data about the height of the antennas. The controller may be in communication with the receiver and may be programmed to steer the wheel to a heading corresponding to a difference between the current position of the wheel and a point along the path and further programmed to calculate a tilt angle from the altitude data and adjust the heading based on the tilt angle.

Abstract: An irrigation system and method for irrigating a field including a plurality of towers linked together by at least one rotatable torque tube. Each of the towers may comprise a frame, one or more wheels on which the frame may travel, a rotatable reel, and a line configured to be spooled onto the reel. A motor may be configured to rotate the torque tube, which may in turn actuate each of the reels to rotate simultaneously. One end of each of the lines may be anchored at a first location and the towers may be located at a second location. Rotation of the reels spools the lines onto the reels and thereby actuates the towers to travel from the second location to the first location. The irrigation system also comprises hoses to link one or more fluid-emitting devices positioned on each of the towers with a water source.

Abstract: An apparatus and method of moving a mobile tower using solar power are disclosed for use with an irrigation system. The disclosed improvement includes a solar panel with a collecting surface to convert light energy to electrical energy, an electrical charge source in communication with the solar panel to receive electrical energy, and a motor to drive a ground-engaging wheel in communication with the electrical charge source. The improvement also includes a direction control system for regulating rotation of the solar panel and a tilt assembly for adjusting the angle of the solar panel to maintain the disposition of the collecting surface in alignment with the direction of incoming sunlight. The method of moving the mobile tower includes collecting light energy with a solar panel, converting the light energy into electrical energy, and driving a wheel of the mobile tower with a motor powered by the converted electrical energy.

Abstract: A planting and irrigation apparatus and method for planting seeds in and irrigating a field. The apparatus may comprise a plurality of spray nozzles configured with a pressure setting sufficient for forming a plurality of holes into soil of the field and a seed dispenser configured for dispensing one or more seeds into one or more of the holes. Once the seeds are dispensed throughout the field, the apparatus may irrigate the field, thereby washing soil displaced when the holes were formed back into the holes, thereby covering the seeds.

Abstract: An apparatus and method of moving a mobile tower using solar power are disclosed for use with an irrigation system. The disclosed improvement includes a solar panel with a collecting surface to convert light energy to electrical energy, an electrical charge source in communication with the solar panel to receive electrical energy, and a motor to drive a ground-engaging wheel in communication with the electrical charge source. The improvement also includes a direction control system for regulating rotation of the solar panel and a tilt assembly for adjusting the angle of the solar panel to maintain the disposition of the collecting surface in alignment with the direction of incoming sunlight. The method of moving the mobile tower includes collecting light energy with a solar panel, converting the light energy into electrical energy, and driving a wheel of the mobile tower with a motor powered by the converted electrical energy.

Abstract: To allow for optimal uniform application of irrigation fluid in a field space outfitted with a center pivot irrigation machine having a main pipeline and an auxiliary or corner pipeline, the auxiliary pipeline is operable to both lead and lag the main pipeline as the main pipeline makes a progressive rotation in a single direction through the field space. In one embodiment a control system for the irrigation machine comprises a buried cable control system. In another embodiment a control system comprises a global positioning satellite control system. In a third embodiment a control system comprises at least two position sensing devices, a first device for sensing an angle of the main pipeline with respect to a center tower and a second device for sensing an angle between the main pipeline and the auxiliary pipeline, and a speed controlling device for controlling a speed of rotation of the main and auxiliary pipelines.

Abstract: A distribution tube assembly for an irrigation system having a main supply line for conveying fluid therein includes a first end, a second end and an internal surface defining at least two fluid passageways, at least one of the fluid passageways being in fluid communication with the main supply line. The other fluid passageway may be in fluid communication with an alternate supply line. Adaptors and regulators may be attached to the distribution tube assembly. The distribution tube assembly permits irrigation to be performed by multiple fluid streams, allows for the incorporation of chemicals within the distribution tube assembly, and provides for selectable flow control.

Abstract: An apparatus and method of moving a mobile tower using wind energy are disclosed for use with an irrigation system. The disclosed improvement includes a rotor assembly operable to be rotated by the movement of passing air, a generator of electrical energy driven by the rotation of the rotor assembly, an electrical charge source in communication with the generator, and a motor to drive a ground-engaging wheel in communication with the electrical charge source. The method of moving the mobile tower includes rotating wind-receiving elements of a rotor assembly with wind energy in passing air, generating electrical energy from the wind energy, and driving a wheel of the mobile tower with a motor powered by the generated electrical energy.

Abstract: An apparatus and method of moving a mobile tower using solar power are disclosed for use with an irrigation system. The disclosed improvement includes a solar panel with a collecting surface to convert light energy to electrical energy, an electrical charge source in communication with the solar panel to receive electrical energy, and a motor to drive a ground-engaging wheel in communication with the electrical charge source. The improvement also includes a direction control system for regulating rotation of the solar panel and a tilt assembly for adjusting the angle of the solar panel to maintain the disposition of the collecting surface in alignment with the direction of incoming sunlight. The method of moving the mobile tower includes collecting light energy with a solar panel, converting the light energy into electrical energy, and driving a wheel of the mobile tower with a motor powered by the converted electrical energy.

Abstract: To prevent the rut-like wheel tracks of an irrigation machine from becoming so deep that the wheels of an irrigation tower can become stuck in mud and water accumulating in the track, a foundation member is inserted into select, potentially troublesome portions of the wheel track to provide support for the wheels during subsequent passes of the machine. In one embodiment the foundation member comprises a generally rectangular pad constructed from synthetic resinous material and designed to be hooked together with other such pads in a chain-like series to provide the length of foundation required. In another embodiment, the foundation member comprises a thinner web or ribbon of preferably synthetic resinous material that may be wound into a coil for storage and cut to length as required. A third embodiment comprises a series of end-to-end pads hingedly interconnected by thinner lines of weakness that may be severed to provide a desired length of foundation member.

Abstract: An apparatus is disclosed for connecting truss rods and other rigid braces of an irrigation system, wherein the rods include shaft sections with enlarged cylindrical heads at the ends thereof and form part of a truss-type framework supporting a conduit. A coupling assembly for holding a pair of such truss rods together in axial alignment is disclosed and includes a top plate and a bottom plate clamped together with a connecting bolt having a non-circular collar. The collar on the bolt cooperates with similarly shaped holes in the plates of the coupling assembly to prevent relative rotation between the plates and also between the bolt and the coupling assembly. The bolt includes a head with a hexagonal drive recess for use with an appropriate driving tool.

Abstract: Mobile towers of an irrigation system have drive wheel assemblies that propel the towers along the ground. At least certain of the wheel assemblies may comprise dual wheels that share a common axis of rotation but are separately driven by their own drive motor. By driving the two separate wheels in unison but with their own individual drive shafts, increased ground-engaging surface area can be obtained without a consequential increase in load for any one motor.