Abstract: A universal adapter for enabling truss foundations to support conventional single-axis trackers. In some cases, the adapter has a main body with an upper portion that presents a standard I-beam interface with pre-drilled holes to interface to a specific single-axis tracker. A pair of connecting portions point down and away from the main body and enable upper leg sections to connect the adapter to a pair of driven screw anchors located below it. The connecting portions may orient the truss so that the rotational axis of the single-axis tracker is aligned with the work point of the truss foundation made from the adapter, upper legs, and driven screw anchors. This will enable to the truss to interface with many different trackers much like conventional plumb-driven H-pile foundations.

Abstract: A machine for rotary driving screw anchors into underlying ground and related. The machine has a mast with a rotary driver and a mandrel driver oriented on a common axis. The mandrel driver passes a mandrel through the rotary driver and the screw anchor to allow the mandrel to be actuated ahead of the screw anchor while the rotary driver drives the screw anchor into the ground. Alternatively, the mandrel driver may also drive a hammering drill through the screw anchor to clear a path ahead of it through subsurface rocks.

Abstract: A crimper for joining truss leg components to form a unitary truss foundation with the ground without needing mechanical fasteners. A crimping tool has upper and lower crimp guides that register the position of jaws on the crimping tool with respect to grooves formed in a connecting portion of a truss cap and in a driving coupler of a driven screw anchor. Registering the position of the jaws ensures that blind crimps between the upper leg and screw anchor and upper leg and truss cap are performed consistently each time.

Abstract: A coupler for joining truss leg components provides angular adjustability between the respective axis of the leg components. A prolate spheroid-shaped coupler with three channels circumscribing its surface enables the upper leg components to compensate for axial misalignment of driven screw anchors in all directions. A hydraulic crimping device with upper and lower crimping guides registers its position with features on the truss hardware to insure that blind triple crimps are performed consistently each time.

Abstract: A universal adapter for enabling truss foundations to support conventional single-axis trackers. In some cases, the adapter has a main body with an upper portion that presents a standard I-beam interface with pre-drilled holes to interface to a specific single-axis tracker. A pair of connecting portions point down and away from the main body and enable upper leg sections to connect the adapter to a pair of driven screw anchors located below it. The connecting portions may orient the truss so that the rotational axis of the single-axis tracker is aligned with the work point of the truss foundation made from the adapter, upper legs, and driven screw anchors. This will enable to the truss to interface with many different trackers much like conventional plumb-driven H-pile foundations.

Abstract: A machine for driving a pair of screw anchors at substantially the same time. An attachment supports a pair of independent drive assemblies. Each assembly consists of a rotary driver and tool driver that moves along respective driving arms to independently drive a pair of screw anchors into supporting ground at different angles. Each assembly may move with respect to the machine independently to drive anchors into the ground in overlapping time, or both may rotate at once to drive anchors into the ground sequentially.

Abstract: An A-frame-shaped truss foundation system for a single-axis tracker with a bearing assembly sitting atop a pair of adjacent angled truss legs joined together with an adapter so that the axis of rotation of the tracker is aligned with a work point of the A-frame. Several such foundation systems are arranged along a North-South row to support a tracker torque tube.

Abstract: A two-piece truss leg system for an A-frame-shaped truss foundation system for single-axis trackers. A driving coupler at the head of each screw anchor used to drive the component into the ground as well as to join the upper leg component to the screw anchor. A connecting portion of the coupler extending above a main body of the coupler is received within an open end of an upper leg component. A curved outer surface of the connecting portion enables the upper leg component to be angularly adjusted relative to the screw anchor. A channel in the connecting portions enables the upper leg component to be deformed into the channel with a crimp connecting.

Abstract: A two-piece truss leg with an articulating coupler for an A-frame-shaped truss foundation system for single-axis trackers. The coupler is attached to the head of each screw anchor to enable it to be driven. A connection portion extends above the coupler and is received within an open end of an upper leg to allow the upper leg to be misaligned with respect to it corresponding screw anchor.

Abstract: A machine for driving a pair of screw anchors at substantially the same time. An attachment supports a pair of independent drive assemblies. Each assembly consists of a rotary driver and tool driver that moves along respective driving arms to independently drive a pair of screw anchors into supporting ground at different angles. Each assembly may move with respect to the machine independently to drive anchors into the ground in overlapping time, or both may rotate at once to drive anchors into the ground sequentially.

Abstract: Systems and methods for quickly and securely interconnecting foundation components when axially misaligned without hydraulic tools. Upper to lower leg connections are made with threaded connections or with ball and socket connections that permit angular adjustment. One or more retaining nuts bias the connection to lock it in place at the desired orientation. Foundation component to single-axis tracker connections are facilitated by various wedge and clamp connector assemblies that rely on mechanical engagement to lock components in place and resist axial forces. Other connections are made with hemispherical washers and adapter plates that enable rigid connections through a range of angles.

Abstract: Systems and methods for quickly and securely interconnecting foundation components when axially misaligned without hydraulic tools. Upper to lower leg connections are made with threaded connections or with ball and socket connections that permit angular adjustment. One or more retaining nuts bias the connection to lock it in place at the desired orientation. Foundation component to single-axis tracker connections are facilitated by various wedge and clamp connector assemblies that rely on mechanical engagement to lock components in place and resist axial forces. Other connections are made with hemispherical washers and adapter plates that enable rigid connections through a range of angles.

Abstract: A machine for rotary driving screw anchors into underlying ground and related. The machine has a mast with a rotary driver and a mandrel driver oriented on a common axis. The mandrel driver passes a mandrel through the rotary driver and the screw anchor to allow the mandrel to be actuated ahead of the screw anchor while the rotary driver drives the screw anchor into the ground. Alternatively, the mandrel driver may also drive a hammering drill through the screw anchor to clear a path ahead of it through subsurface rocks.

Abstract: A coupler for joining truss leg components provides angular adjustability between the respective axis of the leg components. A prolate spheroid-shaped coupler with three channels circumscribing its surface enables the upper leg components to compensate for axial misalignment of driven screw anchors in all directions. A hydraulic crimping device with upper and lower crimping guides registers its position with features on the truss hardware to insure that blind triple crimps are performed consistently each time.

Abstract: A machine for rotary driving screw anchors into underlying ground and related. The machine has a mast with a rotary driver and a mandrel driver oriented on a common axis. The mandrel driver passes a mandrel through the rotary driver and the screw anchor to allow the mandrel to be actuated ahead of the screw anchor while the rotary driver drives the screw anchor into the ground. Alternatively, the mandrel driver may also drive a hammering drill through the screw anchor to clear a path ahead of it through subsurface rocks.

Abstract: Systems and methods for quickly and securely interconnecting foundation components when axially misaligned without hydraulic tools. Upper to lower leg connections are made with threaded connections or with ball and socket connections that permit angular adjustment. One or more retaining nuts bias the connection to lock it in place at the desired orientation. Foundation component to single-axis tracker connections are facilitated by various wedge and clamp connector assemblies that rely on mechanical engagement to lock components in place and resist axial forces. Other connections are made with hemispherical washers and adapter plates that enable rigid connections through a range of angles.

Abstract: A two-piece truss leg with an articulating coupler for an A-frame-shaped truss foundation system for single-axis trackers. The coupler is attached to the head of each screw anchor to enable it to be driven. A connection portion extends above the coupler and is received within an open end of an upper leg to allow the upper leg to be misaligned with respect to it corresponding screw anchor.

Abstract: A two-piece truss leg with an articulating coupler for an A-frame-shaped truss foundation system for single-axis trackers. The coupler is attached to the head of each screw anchor to enable it to be driven. A connection portion extends above the coupler and is received within an open end of an upper leg to allow the upper leg to be misaligned with respect to it corresponding screw anchor.

Abstract: An A-frame-shaped truss foundation system for a single-axis tracker with a bearing assembly sitting atop a pair of adjacent angled truss legs joined together with an adapter so that the axis of rotation of the tracker is aligned with a work point of the A-frame. Several such foundation systems are arranged along a North-South row to support a tracker torque tube.

Abstract: A machine for driving a pair of screw anchors at substantially the same time. An attachment supports a pair of independent drive assemblies. Each assembly consists of a rotary driver and tool driver that moves along respective driving arms to independently drive a pair of screw anchors into supporting ground at different angles. Each assembly may move with respect to the machine independently to drive anchors into the ground in overlapping time, or both may rotate at once to drive anchors into the ground sequentially.