Company Filing History:
Years Active: 1993-2000
Title: Innovations by James F Siegfried
Introduction
James F Siegfried is an accomplished inventor based in Medina, OH (US). He holds a total of 3 patents that showcase his expertise in tire uniformity measurement systems. His innovative contributions have significantly impacted the automotive industry.
Latest Patents
One of his latest patents is the "Portable Tire Uniformity Measurement System and Method." This invention features a portable test apparatus designed to measure the nonuniformity of a tire/wheel assembly in situ on a vehicle's wheel bearing hub. The system includes a lightweight assembly of components, particularly a probe that monitors surface deflections during the rotation of the tire/wheel assembly. It produces an electrical output indicative of these deflections, along with an indexing device that tracks the rotational position of the assembly.
Another notable patent is the "Portable Tire Uniformity Test Machine." This machine is designed for on-site testing of tire uniformity. It features a compact rigid frame with a base supported by longitudinal and transverse frame members. The machine includes a box-like subframe that supports a mounting plate for the tire/wheel assembly. An air spring mechanism allows for the raising and lowering of the mounting plate, while a loading mechanism applies force to ensure contact between the tire and the road wheel. The system is equipped with load cells that measure forces exerted on the tire along multiple axes, providing valuable data on tire uniformity.
Career Highlights
James has worked with prominent companies in the industry, including Bridgestone/Firestone, Inc. and Bridgestone Corporation. His experience in these organizations has contributed to his understanding of tire technology and innovation.
Collaborations
Throughout his career, James has collaborated with notable individuals such as William P Stanfield and Donald E Andrews. These partnerships have fostered a creative environment that has led to significant advancements in tire measurement technology.
Conclusion
James F Siegfried's contributions to tire uniformity measurement systems reflect his dedication to innovation in the automotive sector. His patents demonstrate a commitment to improving tire performance and safety, making him a noteworthy figure in the field of invention.