Company Filing History:
Years Active: 1983-1987
Title: The Innovations of James H Tunnell
Introduction
James H Tunnell is an accomplished inventor based in Washington, IL (US). He has made significant contributions to the field of automotive engineering, particularly in steering apparatus technology. With a total of 2 patents to his name, Tunnell's work reflects a commitment to enhancing vehicle performance and safety.
Latest Patents
Tunnell's latest patents include a "Vehicle Steering Apparatus" and an "Automatic Brake Speed Bleed System." The Vehicle Steering Apparatus is an improved mechanical-over-hydraulic steering system designed to provide automotive-type steering. This innovative apparatus features a steering wheel-driven input control member, right and left turn control valves, and first and second actuators that rotate along a common axis with the input control member. Each actuator is equipped with a cam that works in conjunction with a cam-following roller assembly to operate the respective control valve. The system also includes a cross drive mechanism and an over-center variable displacement steering pump, which is controlled by pilot lines connected to the turn control valves. This design allows for bidirectional communication of fluid to a steering motor, enhancing the steering input to the cross drive mechanism.
Career Highlights
Throughout his career, Tunnell has worked with notable companies such as Caterpillar Inc. and Caterpillar Tractor Co. His experience in these organizations has undoubtedly influenced his innovative approach to engineering challenges.
Collaborations
Tunnell has collaborated with several professionals in his field, including James Robert Bernhagen and Elmer R Crabb. These partnerships have likely contributed to the development and refinement of his inventions.
Conclusion
James H Tunnell's contributions to automotive technology through his patents demonstrate his innovative spirit and dedication to improving vehicle systems. His work continues to influence the industry and inspire future advancements.
Inventor’s Patent Attorneys refers to legal professionals with specialized expertise in representing inventors throughout the patent process. These attorneys assist inventors in navigating the complexities of patent law, including filing patent applications, conducting patent searches, and protecting intellectual property rights. They play a crucial role in helping inventors secure patents for their innovative creations.