Company Filing History:
Years Active: 1977-1984
Title: Innovations of Fred H. Sawada
Introduction
Fred H. Sawada is a notable inventor based in Scotia, NY, with a significant contribution to the field of dynamoelectric machines. He holds a total of six patents, showcasing his expertise and innovative spirit in engineering.
Latest Patents
Among his latest patents is the "High sensitivity brush arcing monitor for a dynamoelectric machine." This invention focuses on high noise immunity instrumentation for monitoring brush arcing. The system includes a stabilized variable threshold discriminator that works with a feedback network and a non-linear high-frequency amplifier. This design allows for an increased signal-to-noise ratio, ensuring that only the arc indicative portions of the signal are processed. Additionally, an alarm network is integrated to provide alerts upon the occurrence of brush arcing, utilizing a comparator that continuously adjusts to changes in the average signal level.
Another significant patent is the "Brush alignment apparatus," which is designed to align brushes of a dynamoelectric machine, such as a DC generator or motor. This apparatus minimizes arcing by processing electrical signals during tests with varying levels of current. The monitor produces output signals that indicate the necessary adjustments for optimal rigging positions, ensuring arc-free operation.
Career Highlights
Fred H. Sawada is associated with General Electric Company, where he has made substantial contributions to the field of electrical engineering. His work has focused on improving the efficiency and reliability of dynamoelectric machines through innovative monitoring and alignment technologies.
Collaborations
He has collaborated with notable coworkers, including James S. Bishop and Frank M. Klementowski, contributing to advancements in their respective fields.
Conclusion
Fred H. Sawada's innovative patents and contributions to dynamoelectric machines highlight his significant role in engineering. His work continues to influence the industry, showcasing the importance of innovation in technology.