Company Filing History:
Years Active: 1984
Title: The Innovative Contributions of David F. Creffield
Introduction
David F. Creffield is an accomplished inventor based in Grass Lake, Michigan. He has made significant contributions to the field of hydraulic systems, particularly with his innovative control systems for variable displacement pumps and motors. His work has implications for various industries that rely on hydraulic technology.
Latest Patents
David F. Creffield holds a patent for a "Control system for variable displacement pumps and motors." This hydraulic motor control system features a speed control loop and a pressure control loop, which provide closed-loop control of a variable displacement chamber space. The system is designed to maintain a set speed within a given load range, and in response to load increases beyond that range, the pressure control loop takes precedence to operate in a constant horsepower mode.
Career Highlights
Throughout his career, Creffield has been associated with Double A Products Company, where he has applied his expertise in hydraulic systems. His innovative approach has led to advancements in the efficiency and effectiveness of hydraulic motor control systems.
Collaborations
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Conclusion
David F. Creffield's contributions to hydraulic technology through his innovative patent demonstrate his commitment to advancing engineering solutions. His work continues to influence the industry and showcases the importance of innovation in engineering.