Company Filing History:
Years Active: 1985-2012
Title: John Foster Farrow: Innovator in Electrical Engineering
Introduction
John Foster Farrow is a notable inventor based in Plymouth, MI (US), recognized for his contributions to electrical engineering. With a total of 13 patents to his name, Farrow has made significant advancements in the field, particularly in the area of current transformers and safety ground circuits.
Latest Patents
Farrow's latest patents include an amplifier circuit for a current transformer. This invention is designed to measure very small AC currents, which is essential for ground fault detection. The circuit presents a very low impedance to the current transformer output while providing high amplification of the current transformer signal. Additionally, it supplies a bias current to the current transformer, enhancing its performance and enabling the detection of disconnection or short circuits. Another significant patent involves methods to detect hazardous conditions in a safety ground circuit amidst ground loop currents and electrical noise. This invention outlines methods to assess the resistance of a connection to safety ground and identify hazardous voltage levels in systems with intermittent current flow. By taking repeated voltage samples, the system can apply a known current to detect electrical resistance and activate outputs to indicate problems, all without requiring a current sensor.
Career Highlights
Throughout his career, John Foster Farrow has worked with several companies, including Medar, Inc. and Welding Technology Corporation. His work has contributed to advancements in safety and efficiency in electrical systems.
Collaborations
Farrow has collaborated with notable individuals in his field, including Jeffrey J. Mason and David W. Schulz. Their combined expertise has likely fostered innovative solutions in electrical engineering.
Conclusion
John Foster Farrow's contributions to electrical engineering through his patents and collaborations highlight his role as a significant innovator in the industry. His work continues to impact safety and efficiency in electrical systems.