Company Filing History:
Years Active: 1985
Title: The Innovations of Stephen R Hemm
Introduction
Stephen R Hemm is an accomplished inventor based in High Wycombe, GB. He has made significant contributions to the field of electrical characteristics measurement, particularly in the context of fibrous materials used in paper production. His innovative approach has led to the development of a unique apparatus that enhances the understanding of important parameters in paper web formation.
Latest Patents
Stephen R Hemm holds a patent for an "Apparatus for determining an electrical characteristic of a fibrous." This invention focuses on measuring the Zeta Potential, a crucial parameter in the formation of a paper web from stock fed to a Foudrinier wire. The apparatus measures the streaming potential developed in a vertically arranged cell, which contains a horizontal mesh. A pad of fibers and fines is formed by pumping stock into the lower part of the cell. Electrodes positioned above and below the pad are utilized to obtain a measure of streaming potential at a specific pressure differential across the pad. Additionally, a pressure transducer is mounted in the lower part of the cell, and corrections for temperature and conductivity are made using sensors in the stock feed path to the cell. The invention also includes a microprocessor control and measuring circuit that sequences valves for controlling the flow of stock and flushing fluid to the cell while measuring the relevant parameters.
Career Highlights
Stephen R Hemm is associated with The Wiggins Teape Group Limited, where he has applied his expertise in developing innovative solutions for the paper industry. His work has significantly impacted the efficiency and effectiveness of measuring electrical characteristics in fibrous materials.
Collaborations
Stephen has collaborated with notable colleagues, including Brian Edward Evans and Rupert A Russell. Their combined efforts have contributed to advancements in the field and have fostered a collaborative environment for innovation.
Conclusion
Stephen R Hemm's contributions to the field of electrical characteristics measurement in fibrous materials are noteworthy. His innovative apparatus has the potential to enhance the understanding of critical parameters in paper production. Through his work at The Wiggins Teape Group Limited and collaborations with esteemed colleagues, Hemm continues to make significant strides in his field.