Elizabeth L Frisbie

Title: Innovations by Elizabeth L. Frisbie

Introduction

Elizabeth L. Frisbie is an accomplished inventor based in Old Hickory, TN (US). She has made significant contributions to the field of engineering, particularly in the development of systems that enhance operational efficiency. With a total of 2 patents, her work reflects a commitment to innovation and problem-solving.

Latest Patents

Frisbie's latest patents include a "Method for controlling throughput," which describes a rate control system designed to deliver a constant throughput for batt forming equipment. This system maintains a pressure gradient across fibers deposited on a rotating condenser screen. The weight of a moving fiber batt is continuously measured as it passes over an inclined slide mounted on load cells. This measurement is converted electronically to a rate value, which is then used with the pressure gradient signal to control the delivery of fiber to the condenser screen by adjusting the speed of the feed rolls.

Another notable patent is the "Method of determining filter pluggage by measuring pressures." This method determines differential filter pressure caused by filter pluggage in a high-pressure liquid system operated by a computer-controlled valve. It eliminates the need for a pressure sensor coupled to the filter by correlating the percentage the control valve is open with the differential pressure of the filter. A signal is provided when the percentage of time the control valve is open exceeds a predetermined time, prompting the replacement of the filter in response to the signal.

Career Highlights

Elizabeth Frisbie is currently employed at E.I. du Pont de Nemours and Company, where she continues to innovate and contribute to her field. Her work has been instrumental in advancing technologies that improve manufacturing processes and operational efficiencies.

Collaborations

Throughout her career, Frisbie has collaborated with notable colleagues, including Kenneth Stephen Freund and Lyles Howard Sowell. These partnerships have fostered an environment of creativity and innovation, leading to the development of impactful technologies.

Conclusion

Elizabeth L. Frisbie exemplifies the spirit of innovation through her patents and contributions to engineering. Her work not only addresses current challenges but also paves the way for future advancements in technology.