Duane Harold Faulkner

Title: Duane Harold Faulkner: Innovator in Fiber Technology

Introduction

Duane Harold Faulkner is a notable inventor based in Cambridge City, Indiana, recognized for his contributions to fiber technology. With a total of four patents to his name, Faulkner has made significant advancements in methods and apparatuses that enhance the production of fibers.

Latest Patents

One of Faulkner's latest patents is a method and apparatus for eliminating external hot gas attenuation. This innovation allows for the formation of fibers with an average diameter of 7 microns or less by controlling design and operational parameters. The process involves passing molten material through orifices in a rotor without the need for conventional hot gas blast attenuation. Additionally, primary fibers are broken into finite lengths to produce staple fiber using relatively cool and low-pressure air streams. These air streams are strategically positioned around the rotor to flow transversely to the primary fibers as they exit the orifices. The rotors in this invention feature a peripheral wall with at least 40,000 orifices, each with diameters of about 18 mils or less. As the orifice diameter changes over time, operational parameters are adjusted to maintain the desired relationships between various design and operational factors.

Another significant patent involves a two-stage orifice outlet for an electric furnace. This design includes a refractory metal inner orifice that withstands high temperatures and is protected from oxidation by an outer structure made of a more oxidation-resistant material. The outer orifice is kept below a temperature that could lead to rapid deterioration through the use of cooling means. This innovative outlet operates without the need for injecting neutral or reducing gases, which was a requirement in prior art furnaces.

Career Highlights

Faulkner's career is marked by his work at Johns Manville, where he has applied his expertise in fiber technology. His innovative approaches have contributed to advancements in the industry, showcasing his commitment to improving manufacturing processes.

Collaborations

Throughout his career, Faulkner has collaborated with notable colleagues, including Vaughn Charles Chenoweth and Steven Douglas Sanford. These partnerships have fostered a collaborative environment that encourages innovation and the sharing of ideas.

Conclusion

Duane Harold Faulkner's contributions to fiber technology through his patents and work at Johns Manville highlight his role as a significant inventor in the field. His innovative methods continue to influence the