Company Filing History:
Years Active: 1976-1990
Title: The Innovative Contributions of Philip E. Barnes
Introduction
Philip E. Barnes is a notable inventor based in West Hartford, CT (US). He has made significant contributions to the field of propeller systems, holding a total of 7 patents. His work primarily focuses on enhancing the efficiency and functionality of aircraft propellers.
Latest Patents
Among his latest innovations is the "Counter-rotation pitch change system." This propeller system features a pair of hub assemblies that rotate in counter-rotation. Each hub assembly is equipped with a mechanical pitch change actuator, which includes a pitch lock that rotates simultaneously with the actuator's motion. This design allows for precise control of propeller blade pitch while ensuring that the blades remain locked in position when not actively rotating. Additionally, a differential transmits pitch change signals across the rotating gap between the two hub assemblies, powered by motors that set the pitch of the blades.
Another significant patent is the "Modular propeller blade pitch actuation system." This system is designed to be easily replaceable and is secured within the hub of an aircraft. It houses a driving system that provides rotational output to adjust the pitch of the propeller blades. The system includes a high-speed, low-torque hydraulic motor that amplifies torque through an harmonic drive. The pitch changing system features an actuator that positions a valve controlling the hydraulic motor, along with a nulling gear that acts as a pitch lock.
Career Highlights
Philip E. Barnes has had a distinguished career at United Technologies Corporation, where he has been instrumental in developing advanced technologies for aircraft systems. His innovative designs have contributed to the efficiency and performance of modern aviation.
Collaborations
Throughout his career, Barnes has collaborated with esteemed colleagues, including Millard G. Mayo and Edward H. Kusiak. Their combined expertise has fostered a creative environment that has led to groundbreaking advancements in propeller technology.
Conclusion
Philip E. Barnes exemplifies the spirit of innovation in the aerospace industry. His contributions through his patents have significantly advanced propeller technology, showcasing his dedication to improving aircraft performance.