Abstract: The present invention provides an apparatus and method for solar tracking. The solar tracking sensor array and method so disclosed can be used with any device that requires a specific orientation to the sun for optimal operation. The system relies upon a sun tracking mechanism which includes a plurality of phototransistors configured in a particular manner. The apparatus can further be used with an analog sensor circuit which is also disclosed herein. Although the device and method are disclosed in conjunction with a solar tracking device, which includes the analog sensor circuit, a drive assembly, and a power source, these components may be used independently of one another.

Abstract: An adjustable inverted-sprinkler system for irrigation. The system includes a sprinkler support base fashioned to accept and retain plurality of sprinklers in a generally inverted orientation. The sprinkler support base is supported by a frame having adjustable vertical, horizontal and slanted support members to allow precise direct, efficient and uniform watering from above. The frame is coupled to a base which allows it to be securely grounded during use and quickly moved as needed by the user.

Abstract: The present invention provides a motor driven by shape memory alloys for use in a variety of applications. In the disclosed embodiment, the motor is used to drive a photovoltaic panel so that the panel may remain in appropriate alignment with the sun throughout the day. In such a configuration, the motor assembly relies upon the intrinsic properties of shape memory alloys, in conjunction with a spring assembly, in order to generate sufficient torque in order to rotate the photovoltaic panel. In order to control the orientation of the panel, the system relies upon a sun tracking mechanism which includes an analog sensor circuit, a plurality of phototransistors and a power source. Accordingly, the device is able to rotate the photovoltaic panel in discrete and precise increments as the day progresses.

Abstract: An adjustable inverted-sprinkler system for irrigation. The system includes a sprinkler support base fashioned to accept and retain plurality of sprinklers in a generally inverted orientation. The sprinkler support base is supported by a frame having adjustable vertical, horizontal and slanted support members to allow precise direct, efficient and uniform watering from above. The frame is coupled to a base which allows it to be securely grounded during use and quickly moved as needed by the user.