Company Filing History:
Years Active: 2010-2019
Title: Douglas A. Hoffmann: Innovator in Glass Fiber Manufacturing
Introduction
Douglas A. Hoffmann is a notable inventor based in Hebron, OH (US). He has made significant contributions to the field of glass fiber manufacturing, holding a total of 2 patents. His innovative methods have the potential to revolutionize the production of high-strength glass fibers.
Latest Patents
Hoffmann's latest patents include a "Method of manufacturing S-glass fibers in a direct melt operation and products formed therefrom." This patent discloses a method for forming high-strength glass fibers in a refractory-lined glass melter. The glass composition used in this method consists of up to about 64-75 weight percent SiO, 16-24 weight percent AlO, 8-12 weight percent MgO, and 0.25-3 weight percent RO, where RO represents the sum of LiO and NaO. The method allows for a fiberizing temperature of less than about 2650°F, with a ΔT of at least 80°F. By utilizing oxide-based refractory-lined furnaces, the production costs of glass fibers are significantly reduced compared to those produced using platinum-lined melting furnaces.
Another patent by Hoffmann is titled "Method of manufacturing high performance glass fibers in a refractory lined melter and fiber formed thereby." This patent also focuses on forming high-strength glass fibers in a refractory-lined glass melter. The glass composition for this method includes up to about 70.5 weight percent SiO, 24.5 weight percent AlO, and 22 weight percent alkaline earth oxides, with the possibility of including small amounts of alkali metal oxides and ZrO. The use of oxide-based refractories, such as alumina and zirconia-alumina-silica, further enhances the efficiency and cost-effectiveness of glass fiber production.
Career Highlights
Hoffmann is currently associated with OCV Intellectual Capital, LLC, where he continues to innovate in the field of glass manufacturing. His work has garnered attention for its potential to lower production costs while maintaining high-quality standards in glass fiber products.
Collaborations
Hoffmann collaborates with Peter Bernard McGinnis, contributing to advancements in glass fiber technology.
Conclusion
Douglas A. Hoffmann's contributions to glass fiber manufacturing through his