Earl M Hanna

Title: **Inventor Earl M. Hanna: Innovations in Plasma Spray Technology**

Introduction

Earl M. Hanna is a prolific inventor based in Greenacres, FL, recognized for his significant contributions to the field of plasma spray technology. With a total of three patents to his name, Hanna has pioneered methods and apparatus that enhance the deposition of protective coatings, contributing to advancements in various industrial applications.

Latest Patents

Hanna's most recent innovations include two important patents that focus on plasma spray methods and thermal spray apparatus. The first patent, titled **“Plasma Spray Method and Apparatus,”** describes a method that allows for the effective direction of plasticized powders against substrates to deposit protective coatings. This patent highlights a unique approach to managing the temperature of the plasma stream prior to the injection of coating particles, ensuring high particle velocities while preventing melting.

The second patent, **“Thermal Spray Apparatus and Method,”** also elaborates on a method of directing plasticized powders. This invention centers on cooling the hot plasma stream after its generation, allowing for the injection of coating particles at optimal conditions. Detailed implementations include mechanisms to cool the plasma using a diluent gas and an elongated heat exchanger, followed by plasma acceleration to regain lost velocity, thus refining the overall thermal spray process.

Career Highlights

Earl M. Hanna has made a significant impact through his work at United Technologies Corporation, where he has been at the forefront of innovation in thermal spray technology. His dedication and expertise have facilitated enhancements in manufacturing processes and product durability through advanced coating technologies.

Collaborations

Throughout his career, Hanna has collaborated with notable colleagues such as Larry S. Sokol and Charles C. McComas. These partnerships have fostered a rich environment of innovation, leading to breakthroughs that push the boundaries of what is possible in thermal and plasma spray methods.

Conclusion

Earl M. Hanna stands out as a leading innovator in the field of plasma spray technology. With his patented methods and continued contributions to United Technologies Corporation, he exemplifies the spirit of innovation that drives advancements in manufacturing and engineering processes. His work not only reflects personal achievement but also strengthens the capabilities of industries reliant on protective coating technologies.