Company Filing History:
Years Active: 1979
Title: The Innovative Contributions of Lawrence P. Greenfield
Introduction
Lawrence P. Greenfield is a notable inventor based in Evanston, IL, recognized for his contributions to the field of railroad technology. He has made significant strides in improving the design and functionality of railroad car wheels. His innovative approach has led to the development of a unique patent that enhances the performance and safety of railroad cars.
Latest Patents
Greenfield holds a patent for a railroad car wheel, which features an annular hub designed for connection to an axle. This wheel includes an inner radial surface that faces the inner surface of a wheel on the opposite end of the axle, as well as an outboard radial surface that faces outwardly. The design incorporates an annular tread defining a rim portion that is generally concentric with the hub. This rim portion is axially displaced outwardly with respect to the hub and features a cylindrical rail engaging surface with a radially extending flange. The integral annular plate portion connecting the rim and hub has a relatively thin cross-section and is generally frusto-conical, providing enhanced structural integrity and performance.
Career Highlights
Greenfield is associated with Trailer Train Company, where he has applied his expertise in engineering and design to develop innovative solutions for the railroad industry. His work has contributed to advancements in the safety and efficiency of railroad operations.
Collaborations
Throughout his career, Greenfield has collaborated with notable colleagues, including George E. Novak and Daniel H. Stone. These partnerships have fostered a creative environment that encourages innovation and the sharing of ideas.
Conclusion
Lawrence P. Greenfield's contributions to the field of railroad technology exemplify the impact of innovative thinking in engineering. His patent for the railroad car wheel showcases his commitment to enhancing safety and performance in the industry. Greenfield's work continues to influence the future of railroad design and technology.