Keith Rowan Guy

Title: Innovations by Keith Rowan Guy in Tobacco Expansion Technology

Introduction

Keith Rowan Guy is an accomplished inventor based in Winston-Salem, NC (US). He has made significant contributions to the field of tobacco processing, particularly in methods and apparatuses for expanding tobacco. With a total of 2 patents to his name, his work has the potential to enhance the efficiency and quality of tobacco products.

Latest Patents

One of his notable patents is titled "Method of and apparatus for expanding tobacco." This invention focuses on a method and apparatus designed to expand tobacco, especially when it is impregnated with solid carbon dioxide. The apparatus features a C-shaped duct that conveys the tobacco material in a hot gaseous medium, facilitating the sublimation of solid carbon dioxide and the subsequent expansion of the tobacco. The duct is designed with a non-circular cross-section, preferably rectangular, which allows for an optimal flow of the tobacco material.

Another significant patent by Guy is "Process and apparatus for expanding tobacco cut filler." This invention utilizes the DIET process to expand tobacco cut filler. During the depressurization of a pressure vessel containing a mixture of cut filler and liquid carbon dioxide, gaseous carbon dioxide is introduced to create a mixture with decreased density. The design includes a vertically extending duct that allows for adequate residence time of the tobacco cut filler, ensuring effective expansion.

Career Highlights

Keith Rowan Guy is currently employed at R.J. Reynolds Tobacco Company, where he continues to innovate in the field of tobacco processing. His work has been instrumental in developing new technologies that improve the quality and efficiency of tobacco products.

Collaborations

Throughout his career, Guy has collaborated with notable colleagues, including Dale Bowman Poindexter and Russell D. Barnes. These collaborations have contributed to the advancement of tobacco processing technologies.

Conclusion

Keith Rowan Guy's innovative patents and contributions to tobacco expansion technology highlight his expertise and commitment to improving the industry. His work at R.J. Reynolds Tobacco Company continues to pave the way for advancements in tobacco processing.