Company Filing History:
2 out of 4,627 
1 out of 2,886 Years Active: 2006-2010
Title: The Ingenious Innovations of William T. DeGroff
Introduction: William T. DeGroff, an inventive mind based in Rockford, IL, has made significant contributions to aeronautical engineering through his groundbreaking patents. With a total of two patents to his name, DeGroff's work exemplifies innovation in the field of emergency power systems.
Latest Patents: DeGroff's latest innovations include the "Turbofan Emergency Generator," a turbine engine emergency power system designed to function under failure conditions. This system comprises low and high-pressure spools, with the low-pressure spool driving a turbofan in a unique windmill condition to generate power even when the turbine engine is not operating at full capacity. The design employs a gear train to enhance the generator's speed and features a centrifugal clutch that selectively decouples the generator at optimal engine speeds.
Another notable patent is the "RAM Air Turbine Over-Speed Protector Using Redundant Yoke Plate Linear Bearings." This improved ram air turbine is focused on generating supplementary power for aeronautical emergencies. It utilizes a series of concentric linear bearings to support a speed governor yoke plate on its respective shaft, ensuring reliability and efficiency in critical situations.
Career Highlights: Throughout his career, DeGroff has worked for prestigious companies such as Hamilton Sundstrand Corporation and Pratt & Whitney Canada Corp. His experience at these organizations has honed his expertise and fostered his inventive spirit, leading to the development of innovative systems that enhance aeronautical safety and efficiency.
Collaborations: DeGroff has collaborated with notable professionals in the industry, including Richard C. Welch and Gerard Howard Bueche. Their collective knowledge and teamwork have contributed to the advancement of technologies that support emergency power generation in aviation.
Conclusion: William T. DeGroff is a prominent inventor whose patents reflect a commitment to innovation in emergency power systems. His work continues to influence the aerospace industry, showcasing the importance of engineering ingenuity and collaborative efforts in creating reliable solutions for critical situations.