This inventor holds 6 USPTO granted patents. Top assignees: Delco Remy International, Inc., Cummins Inc., Delphi Technologies, Inc.. Active years: 1985-2006.
Company Filing History:
2 out of 6 
1 out of 1,672 
1 out of 5,161 
Years Active: 1985-2006
Title: Ralph H. Johnston: Innovator in Electrical Engineering
Introduction
Ralph H. Johnston is a notable inventor based in Anderson, Indiana, recognized for his contributions to electrical engineering and automotive technology. With a total of six patents to his name, Johnston has made significant advancements in engine starting systems, emphasizing efficiency and reliability in functionality.
Latest Patents
Johnston's latest innovations include an engine starting motor anti-milling device and an electrical control circuit and method. The anti-milling device incorporates a power module that connects the starter, alternator, and battery for an internal combustion engine. This module features capacitors and a delay timer that enhances the engagement of the starter pinion gear with the flywheel ring gear, reducing the risk of milling damage.
His electrical control circuit allows unmodified DC starter motors to operate across different voltage systems. This flexibility ensures that these motors can function on power sources providing alternative voltages without the need for modifications. The system smartly manages the voltage supplied to the motor based on the actuation state of a solenoid.
Career Highlights
Throughout his career, Ralph H. Johnston has worked with reputable companies, such as Delco Remy International, Inc. and Remy Inc., where he contributed to cutting-edge research and development in automotive technologies. His impact on the field is underscored by his innovative approaches to solving complex engineering challenges.
Collaborations
Johnston has collaborated with several esteemed professionals in his field, including Ronald A. Martin and Chahee P. Cho. These collaborations have not only fostered a spirit of innovation but have also played a crucial role in refining his patented inventions.
Conclusion
Ralph H. Johnston stands out as an influential inventor whose work has significantly advanced electrical engineering in the automotive industry. Through his patented inventions, he has demonstrated a commitment to enhancing the performance and reliability of engine starting systems. His contributions continue to inspire future innovations in technology.