Company Filing History:
2 out of 317 
2 out of 19 
1 out of 16 Years Active: 1999-2007
Title: Innovations by Julius I Pershwitz
Introduction
Julius I Pershwitz is a notable inventor based in Grantham, PA (US), recognized for his contributions to railway technology. He holds five patents that showcase his innovative approach to improving railcar performance and ride quality. His work has significantly impacted the railroad industry, particularly in suspension systems.
Latest Patents
One of his latest patents is the Railway Truck Suspension Design. This invention features a tuned spring group that includes load springs, control springs, and a frictional damping arrangement for railcar truck assemblies. It enhances ride quality, increases resistance to suspension bottoming, and raises the hunting threshold speed of railroad cars. The design achieves a spring group reserve capacity of less than 1.50, resulting in decreased maximum vertical acceleration as the railcar approaches speeds of 55 miles per hour. This improvement leads to better ride quality and overall performance.
Another significant patent is the Three-Piece Motion Control Truck System. This system provides long travel side bearings for enhanced stability and incorporates a 'wide' friction shoe design to improve sideframe and bolster squareness. It features a resilient pedestal pad for better curving performance and wear resistance. The suspension system is optimized for railcars, ensuring a minimum reserve capacity of less than 1.5, which improves motion control and ride quality while meeting stringent American Association of Railroads standards.
Career Highlights
Throughout his career, Julius I Pershwitz has worked with prominent companies such as Amsted Industries Inc. and ASF-Keystone, Inc. His experience in these organizations has allowed him to develop and refine his innovative ideas in railway technology.
Collaborations
He has collaborated with notable coworkers, including Ronald E Barker and Charles E Burkhart, contributing to advancements in the field of railcar design and technology.
Conclusion
Julius I Pershwitz's innovative patents and career achievements have made a significant impact on the railway industry. His work continues to influence the design and performance of railcar systems, ensuring safer and more efficient transportation.