Robert J Spreadbury

Title: The Innovations of Robert J Spreadbury

Introduction

Robert J Spreadbury is a notable inventor based in Murrysville, PA (US). He has made significant contributions to the field of electrical engineering, particularly in the development of discharge lamp technologies. With a total of 6 patents to his name, Spreadbury's work has had a lasting impact on lighting systems.

Latest Patents

One of his latest patents is titled "Starting and operating method and apparatus for discharge lamps." This invention includes a current-limiting and rectifying means that provides a low-ripple current-limited direct current at its output. The starting circuit utilizes a series-connected inductor and capacitor to form a high 'Q' resonant circuit, which is essential for lamp operation. Another significant patent is the "Ballast modifying device and lead-type ballast for programming and control." This apparatus is designed to program and control the performance of high-intensity-discharge sodium lamps, utilizing a current-limiting high-reactance transformer and a pulse-generating means to initiate discharge within the lamp.

Career Highlights

Throughout his career, Robert J Spreadbury has worked with prominent companies such as Westinghouse Electric Corporation and Cooper Industries, Inc. His experience in these organizations has allowed him to refine his skills and contribute to innovative projects in the lighting industry.

Collaborations

Spreadbury has collaborated with notable coworkers, including Joseph C Engel and Delmar R Riffe. Their combined expertise has fostered advancements in electrical engineering and lighting technologies.

Conclusion

Robert J Spreadbury's contributions to the field of electrical engineering, particularly in discharge lamp technologies, highlight his innovative spirit and dedication to advancing lighting systems. His patents continue to influence the industry and showcase his expertise as an inventor.