Company Filing History:
Years Active: 1977
Title: Innovations of James E Hetherington
Introduction
James E Hetherington is an accomplished inventor based in Girard, PA (US). He is known for his significant contributions to the field of electrical engineering, particularly in the development of inverter circuits. His innovative work has led to the creation of a patented technology that enhances the efficiency of fluorescent lamp systems.
Latest Patents
Hetherington holds a patent for an inverter ballast circuit. This invention is designed to serve as a fluorescent lamp inverter ballast, which is crucial for the effective operation of fluorescent lighting. The inverter circuit is capable of starting the fluorescent lamp through regenerative feedback techniques, leveraging the amplification characteristics of the inverter switching transistor. This design minimizes transistor switching losses by employing resonant storage techniques and a unique feedback system. Furthermore, it eliminates the typical energy loss in the feedback circuit by integrating the resonant load means and the feedback means into a single structure.
Career Highlights
James E Hetherington has made a notable impact in the lighting industry through his work at Lighting Systems, Inc. His expertise in electrical engineering and innovative thinking have positioned him as a key figure in the development of advanced lighting solutions.
Collaborations
Hetherington has collaborated with various professionals in his field, including his coworker William B Zelina. Their combined efforts have contributed to the advancement of lighting technologies and the implementation of efficient systems.
Conclusion
James E Hetherington's contributions to the field of electrical engineering, particularly through his patented inverter ballast circuit, demonstrate his commitment to innovation and efficiency in lighting technology. His work continues to influence the industry and pave the way for future advancements.