Company Filing History:
Years Active: 1992-1994
Title: The Innovations of David R. Markus
Introduction
David R. Markus is a notable inventor based in Monroeville, PA (US). He has made significant contributions to the field of electrical engineering, particularly in the development of automatic voltage regulators. With a total of 4 patents to his name, Markus has demonstrated a commitment to innovation and technological advancement.
Latest Patents
One of his latest patents is the "Minimum time delay filtering method for automatic voltage regulators." This invention enhances the response time of automatic voltage regulators by utilizing phasor relationships between generator phase voltages. By sampling and squaring each sinusoidal phase voltage, the squared values are summed, and the square root of this sum provides a DC voltage signal. This signal is then compared with a reference to generate an error signal, which is crucial for regulating the generator terminal voltage.
Another significant patent is the "Thermal protection apparatus for a synchronous machine." This invention protects synchronous machines from excessive field current and volts/hertz ratios. The control system models rotor and stator cooling, providing memory of recent excessive heating periods. It includes maximum excitation limiting and volts/hertz ratio limiting modules that generate time-delayed limit signals, ensuring the machine operates within safe parameters.
Career Highlights
David R. Markus is currently employed at Westinghouse Electric Corporation, where he continues to innovate and contribute to advancements in electrical engineering. His work has had a lasting impact on the efficiency and safety of electrical systems.
Collaborations
Throughout his career, Markus has collaborated with esteemed colleagues such as Donald S. Kimmel and Kenneth M. Eichler. These partnerships have fostered a collaborative environment that encourages the exchange of ideas and innovation.
Conclusion
David R. Markus exemplifies the spirit of innovation in electrical engineering through his patents and contributions to automatic voltage regulation technology. His work not only enhances the efficiency of electrical systems but also ensures their safety and reliability.