This inventor holds 1 USPTO granted patent. Top assignee: E.i. Dupont De Nemours and Company. Active years: 1999.
Company Filing History:
Years Active: 1999
Title: The Innovations of Robert Carter Johnstone
Introduction
Robert Carter Johnstone is a notable inventor based in Cochranville, PA (US). He has made significant contributions to the field of polymer technology, particularly in the area of filament spinning. His innovative approach has led to advancements that enhance the uniformity and efficiency of polymer processing.
Latest Patents
Johnstone holds a patent for a "Method and spinning apparatus having a multiple-temperature control." This invention provides a method and apparatus for spinning filaments of a polymeric material. It includes a first temperature control arrangement that heats a spin pack to a predetermined reference temperature, ensuring uniform temperature across the polymer filter holder and the spinneret plate. This uniformity results in filaments that are consistent in quality as they emanate from the spinneret plate. Additionally, the invention features a second temperature control arrangement that allows for independent control of the temperature of a plate assembly, providing flexibility in managing the polymer temperature during processing.
Career Highlights
Johnstone is associated with E.I. DuPont de Nemours and Company, a leading organization in the field of science and technology. His work at DuPont has allowed him to apply his innovative ideas in a practical setting, contributing to the company's reputation for excellence in polymer research and development.
Collaborations
Throughout his career, Johnstone has collaborated with notable colleagues, including Leland Luper Krauss and Duncan Douglas McCabe. These partnerships have fostered a creative environment that encourages the exchange of ideas and the development of groundbreaking technologies.
Conclusion
Robert Carter Johnstone's contributions to the field of polymer technology through his innovative patent demonstrate his commitment to advancing the industry. His work continues to influence the way polymers are processed, ensuring higher quality and efficiency in production.