Thomas H Richards

Title: Innovations of Thomas H. Richards

Introduction

Thomas H. Richards is a notable inventor based in Brunswick Hills, OH (US). He has made significant contributions to the field of injection molding technology, holding a total of 4 patents. His work focuses on enhancing the efficiency and performance of injection molding machines.

Latest Patents

One of his latest innovations is the hybrid injection molding machine. This energy-efficient general-purpose injection molding machine employs a hydraulic drive for injection and clamp machine functions, while utilizing an electric drive for screw recovery. Both drives are equipped with AC "squirrel cage" induction motors under vector control. The machine's controller generates speed command signals for the vector controls, employing state transition and predictive signal techniques to account for motor and motor/pump response latencies. The hydraulic drive efficiency is improved by varying motor speed and pump output to match cycle requirements, thereby retaining the hydraulic drive advantages for mold clamp and injection functions while enhancing the electric drive performance for screw recovery.

Career Highlights

Thomas H. Richards is currently associated with Van Dorn Demag Corporation, where he continues to innovate and develop advanced machinery solutions. His expertise in injection molding technology has positioned him as a key figure in the industry.

Collaborations

Throughout his career, Thomas has collaborated with notable colleagues, including Thomas Christopher Bulgrin and George L. Eterovich. These collaborations have contributed to the advancement of technology in their field.

Conclusion

Thomas H. Richards is a distinguished inventor whose work in hybrid injection molding machines exemplifies innovation in manufacturing technology. His contributions continue to influence the industry and improve production efficiency.