James W Appelgren

Title: Innovations of James W. Appelgren

Introduction

James W. Appelgren is an accomplished inventor based in Highland Park, IL (US). He has made significant contributions to the field of digital control systems, particularly in the area of position control for motor-driven apparatus. His innovative approach has led to the development of a unique patent that enhances the functionality and efficiency of linearly moving devices.

Latest Patents

James W. Appelgren holds a patent for a "Digital position control." This invention provides a digital position control for linearly moving apparatus driven by a motor. The system includes a command signal generating loop that is coupled to a motor operative condition control loop. The command signal generating loop produces a digital pulse train signal with frequency characteristics that correspond to the desired accelerations and velocities of the apparatus. Additionally, the total number of pulses is proportional to the desired movement of the apparatus. The motor operative condition control loop utilizes the command signal to energize the motor according to the frequency and pulse count characteristics of the command signal. This innovative design allows for precise control of motor-driven systems.

Career Highlights

James W. Appelgren is associated with Dynapar Corporation, where he applies his expertise in digital control systems. His work at Dynapar has allowed him to further develop his ideas and contribute to advancements in motor control technology. His dedication to innovation has positioned him as a valuable asset in the field.

Collaborations

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Conclusion

James W. Appelgren's contributions to digital position control technology exemplify the impact of innovative thinking in engineering. His patent reflects a commitment to enhancing the performance of motor-driven systems, showcasing the importance of inventors in driving technological progress.