John J Pitha

Title: John J Pitha: Innovator in Sinterless Zinc Oxide Varistor Devices

Introduction

John J Pitha is a notable inventor based in Lenox, MA (US). He has made significant contributions to the field of electrical engineering, particularly in the development of varistor devices. With a total of 2 patents to his name, Pitha's work has had a considerable impact on the industry.

Latest Patents

Pitha's latest patents include innovative designs for sinterless zinc oxide varistor devices. These devices are prepared by flame spraying premixed zinc oxide and additive metal oxide powders onto a refractory substrate. The coated substrate undergoes an abrasive removal process to create a trimmable resistor. Another embodiment involves a plasma spray process where carbonates and nitrates of the varistor constituents are oxidized in situ by entrainment within an oxygen gas stream, directing the plasma onto a rotating substrate. This method allows for the preparation of ultra-pure zinc oxide varistor devices with excellent electrical properties.

Career Highlights

John J Pitha is associated with General Electric Company, where he has been instrumental in advancing technology related to varistor devices. His expertise and innovative approach have contributed to the company's reputation for excellence in electrical engineering.

Collaborations

Pitha has collaborated with notable colleagues, including Howard F Ellis, to further enhance the development of varistor technology. Their combined efforts have led to advancements that benefit the industry.

Conclusion

John J Pitha's contributions to the field of electrical engineering, particularly through his patents on sinterless zinc oxide varistor devices, showcase his innovative spirit and dedication to advancing technology. His work continues to influence the industry positively.