Company Filing History:
3 out of 992 
1 out of 136 
Years Active: 1995-2001
Title: Jack S. Lawler: Innovator in Electrical Engineering
Introduction
Jack S. Lawler is a notable inventor based in Knoxville, TN (US). He has made significant contributions to the field of electrical engineering, particularly in the development of advanced motor control technologies. With a total of 4 patents to his name, Lawler's work has had a lasting impact on the industry.
Latest Patents
One of Lawler's latest patents is titled "Constant power speed range extension of surface mounted PM motors." This invention describes a circuit and method for controlling a rotating machine in the constant horsepower range above base speed. It utilizes an inverter with SCRs connected in series with primary commutation switches to manage the turn-off of these switches and protect them from faults. The controller fires the switches in advance or after a specific time when the back EMF equals the applied voltage, allowing for power development at speeds up to at least six times the base speed. Another significant patent is focused on "Quasi square-wave back-EMF permanent magnet AC machines with five or more phases." This innovation introduces a new class of higher phase-order machines that employ a greater number of active phase windings during continuous operation, optimizing the use of copper and magnet material.
Career Highlights
Throughout his career, Jack S. Lawler has worked with prominent organizations such as the Electric Power Research Institute and Lockheed Martin Energy Research Corporation. His experience in these companies has allowed him to refine his skills and contribute to groundbreaking projects in electrical engineering.
Collaborations
Lawler has collaborated with several talented individuals in his field, including Patrick James McCleer and J. Milton Bailey. These partnerships have fostered innovation and have been instrumental in the development of his patented technologies.
Conclusion
Jack S. Lawler's contributions to electrical engineering through his patents and collaborations highlight his role as a significant innovator in the industry. His work continues to influence advancements in motor control technologies and permanent magnet machines.