Company Filing History:
3 out of 23 
1 out of 3 
1 out of 4 Years Active: 1982-2009
Title: The Innovative Contributions of Fredric W. Prill
Introduction
Fredric W. Prill is a notable inventor based in North Aurora, IL (US). He has made significant contributions to the field of asphalt technology, holding a total of 6 patents. His work focuses on improving processes and equipment used in asphalt plants, showcasing his commitment to innovation in this industry.
Latest Patents
Among his latest patents, Prill has developed an "Adjustable Inlet for Recycle Asphalt Pavement." This invention features a dryer for an asphalt plant that includes a cylindrical drum, a burner with a head partially disposed within the drum, and a feeder for providing recycled asphalt pavement. The adjustable inlet allows for the introduction of recycled asphalt pavement from the feeder into the drum at a desired position, which can be adjusted laterally between at least two positions.
Another significant patent is the "Reverse-Flow Baghouse." This apparatus and method are designed for removing particulate from a particulate-laden gas stream. The process involves flowing a particulate-laden gas stream to one side of the filter bags, stopping the gas stream to at least one filter bag, and using a reverse-flow of a cleaning gas stream to remove dust from the bag. This innovative method allows for independent control of the particulate-laden gas stream and the cleaning gas stream.
Career Highlights
Throughout his career, Fredric W. Prill has worked with reputable companies such as Barber-Greene Company and Asphalt Product Technologies. His experience in these organizations has contributed to his expertise in asphalt technology and innovation.
Collaborations
Prill has collaborated with notable individuals in his field, including Robert E. Farnham and Lee V. Binz. These collaborations have likely enriched his work and contributed to the development of his patented technologies.
Conclusion
Fredric W. Prill's contributions to asphalt technology through his innovative patents demonstrate his expertise and commitment to improving industry practices. His work continues to influence the field and showcases the importance of innovation in engineering.