Company Filing History:
3 out of 137 
2 out of 92 
1 out of 74 Years Active: 2010-2024
Title: Bruce Douglas: Innovator in Cured Membrane Manufacturing
Introduction
Bruce Douglas is a notable inventor based in Zionsville, Indiana, with a significant contribution to the field of manufacturing cured membranes. He holds a total of six patents, showcasing his innovative approach and expertise in this specialized area.
Latest Patents
Among his latest patents is a system and method for continuously manufacturing cured membranes. This method involves continuously compounding and mixing a vulcanizable rubber composition in a mixing extruder while simultaneously removing gases from the composition using a vacuum. The vulcanizable rubber composition is then continuously extruded to form an extrudate, which is calendered to create a green membrane. Finally, the green membrane undergoes continuous curing, potentially utilizing a hot air conveyor curing system to produce a fully cured membrane.
Career Highlights
Bruce Douglas has had a distinguished career, working with prominent companies such as Firestone Building Products Company, LLC and Holcim Technology Ltd. His experience in these organizations has contributed to his development as an inventor and innovator in the industry.
Collaborations
Throughout his career, Bruce has collaborated with notable professionals, including Michael J. Hubbard and Hao Wang. These collaborations have likely enriched his work and contributed to his success in the field.
Conclusion
In summary, Bruce Douglas is a prominent inventor whose work in the continuous manufacturing of cured membranes has made a significant impact in the industry. His innovative methods and collaborations highlight his dedication to advancing manufacturing technologies.