Abstract: A powered rotary screed provides a powered strike tube that rotates to provide a finish to wet concrete during screeding and a drive tube that provides motive power to the screed to assist with the difficult task of removing excess concrete from a poured pad, or other horizontal concrete surface. The drive tube is split to provide two separate portions that can be independently controlled for easy control of the screed as the screed works concrete. The drive tube portions are elongate cylinders that are axially aligned and rotatable relative to one another. Separate motors drive respective drive tube portions and can be individually controlled to prevent skewing of the screed.

Abstract: A powered rotary screed provides a powered strike tube that rotates to provide a finish to wet concrete during screeding and a drive tube that provides motive power to the screed to assist with the difficult task of removing excess concrete from a poured pad, or other horizontal concrete surface. No framework or other supporting structure extends between ends of the screed thereby making the screed more portable than comparable screeds having a structure that supports the roller tubes and extends the length of the screed. Handles are pivotally coupled to plates at each end of the screed to maneuver and control the screed during operation. Because the handles are pivotally mounted, they can be pivoted outward to permit the screed to maneuver close to obstacles located near the pad.

Abstract: A powered rotary screed has a plurality of interchangeable modules of different lengths so that the power screed can accommodate various sizes of screed jobs. Additionally, the rotary screed comprises a centrally located expansion member that can be adjusted to cause an upper ridge member of the rotary screed to expand outward, thus raising a medial portion of the roller screeds so that they may be adjusted to maintain horizontal alignment. The screed is propelled by drive tubes that are supported by drive modules and powered by hydraulic motors. The screed further comprises a two-section strike tube which is likewise powered by a hydraulic motor. An operator rides in an operator's station and controls the speed and direction of the rotary screed. The drive tubes include a leading drive tube which is vertically adjustable to adjust the amount of pressure of the strike tube upon the concrete form.

Abstract: A powered rotary screed has a plurality of interchangeable modules of different lengths so that the power screed can accommodate a range of job applications. Additionally, the rotary screed comprises a centrally located expansion member that can be adjusted to cause an upper ridge member of the rotary screed to expand outward, thus raising a medial portion of the roller screeds so that they may be adjusted to maintain horizontal alignment. The screed is propelled by two drive tubes that are supported by drive modules and powered by hydraulic motors. The screed further comprises a two-section strike tube which is likewise powered by a hydraulic motor. An operator rides in an operator's station and controls the speed and direction of the rotary screed.