Douglas V Stewart

Title: Innovations by Douglas V Stewart

Introduction

Douglas V Stewart is a notable inventor based in Florence, Alabama, recognized for his contributions to the field of aluminum production. He holds a total of six patents, showcasing his innovative spirit and technical expertise. His work primarily focuses on enhancing processes and materials used in aluminum furnaces.

Latest Patents

One of Stewart's latest patents is the "Porous plug structure for aluminum furnaces." This invention involves a porous plug assembly designed for vessels containing molten metal, such as melting or holding furnaces. The assembly allows for the introduction of fluxing or other gases into the molten metal, improving the overall efficiency of the process. The design features a frustoconical porous refractory core member, which is enclosed by a non-porous refractory lining and a metallic outer liner made from inconel, complete with a ceramic anti-corrosion coating. A gas distribution pipe extends into the core member, facilitating the introduction of fluxing gas.

Another significant patent is for "Refractory hard metal shapes for aluminum production." This invention controls the density of various refractory hard metal articles, enabling them to float on the surface of molten aluminum. This floating capability stabilizes and protects the surface of the molten aluminum, with floating cathodes being a particular application for these materials.

Career Highlights

Douglas V Stewart has made significant strides in his career at Reynolds Metals Company, where he has applied his innovative ideas to improve aluminum production processes. His patents reflect a deep understanding of the materials and methods used in the industry, contributing to advancements that enhance efficiency and safety.

Collaborations

Throughout his career, Stewart has collaborated with notable colleagues, including Alton T Tabereaux and John T Willett. These partnerships have likely fostered a creative environment that encourages innovation and the development of new technologies in aluminum production.

Conclusion

Douglas V Stewart's contributions to the field of aluminum production through his patents demonstrate his commitment to innovation and improvement in industrial processes. His work continues to influence the industry, showcasing the importance of inventive thinking in advancing technology.