Bobby W Francis

Title: Bobby W. Francis: Innovator in Smoke Measurement Technology

Introduction

Bobby W. Francis is a notable inventor based in Mechanicsville, Virginia. He has made significant contributions to the field of smoke measurement technology, particularly in the context of sidestream smoke produced by cigarettes. His innovative approach has led to the development of a patented method that enhances the accuracy of smoke measurement.

Latest Patents

Bobby W. Francis holds a patent for "Methods and apparatus for measuring sidestream smoke." This invention provides a comprehensive solution for continuously and instantaneously measuring sidestream smoke. The design includes a hood assembly that fits over the ports of a conventional smoking machine. Sidestream smoke produced by test cigarettes is continuously drawn through the hood by an exhaust system. A laser beam is passed through the smoke one or more times before being sensed by a photodiode detector. The electrical signal from the detector, representing the light transmission, is received by a strip recorder or computer system. These transmission measurements are utilized to calculate the extinction coefficient of the smoke for comparison purposes.

Career Highlights

Bobby W. Francis is associated with Philip Morris Inc., where he has applied his expertise in smoke measurement technology. His work has contributed to advancements in understanding the properties of sidestream smoke, which is crucial for health and safety assessments.

Collaborations

Some of his notable coworkers include Douglas D. McRae and Leonard E. Brown, Jr. Their collaborative efforts have likely played a role in the development and refinement of the technologies related to smoke measurement.

Conclusion

Bobby W. Francis is a distinguished inventor whose work in measuring sidestream smoke has made a significant impact in the field. His innovative methods and collaboration with industry professionals continue to influence smoke measurement technology.