Joseph M Urish

Title: Joseph M Urish: Innovator in Electrical Engineering

Introduction

Joseph M Urish is a notable inventor based in Shawnee, Ohio, recognized for his contributions to electrical engineering. He holds a total of 4 patents, showcasing his innovative spirit and technical expertise in the field.

Latest Patents

One of his latest patents is the "Power Transistor Drive Circuit." This invention features a transistor drive circuit that includes a driver transistor and a power switching transistor arranged in a Darlington configuration. The circuit receives turn-on and turn-off signals from a drive transformer. A capacitor is integrated to connect the driver transistor base and the switching transistor emitter during the turn-off period, which accelerates the turn-off process for both transistors. Additionally, a diode is connected between the emitter and the base of the driver transistor to maintain current flow from the capacitor after the driver transistor has turned off, but before the switching transistor does. The capacitor is then recharged before the next turn-on signal is received.

Another significant patent is the "Aircraft Window Heat Controller with Switched Impedances." This invention provides an electrical resistance heater controller that consists of multiple circuit branches connected in parallel and in series with a heating element and an external AC power source. Each branch includes a series connection of a capacitor and a solid-state switch, which are controlled by a gating device to switch during the zero crossing of the AC source voltage waveform. The power delivered to the heating element is regulated by adjusting the amount of series capacitance in the circuit.

Career Highlights

Joseph M Urish is currently employed at Westinghouse Electric Corporation, where he continues to innovate and contribute to advancements in electrical engineering. His work has had a significant impact on the industry, particularly in the development of efficient electrical systems.

Collaborations

Throughout his career, Joseph has collaborated with notable colleagues, including Otto L Apfelbeck and Mark A Rosswurm. These partnerships have fostered a creative environment that has led to the development of groundbreaking technologies.

Conclusion

Joseph M Urish is a distinguished inventor whose work in electrical engineering has resulted in several innovative patents. His contributions continue to influence the field, demonstrating the importance of creativity and collaboration in technological advancement.