Location History:
- Westfield, IN (US) (1978)
- Indianapolis, IN (US) (1980)
Company Filing History:
Years Active: 1978-1980
Title: The Innovations of Robert H. Schaefer
Introduction
Robert H. Schaefer is a notable inventor based in Westfield, IN (US). He has made significant contributions to the field of automotive technology, particularly in braking systems and transmissions. With a total of 3 patents to his name, Schaefer's work reflects a deep understanding of mechanical engineering and innovation.
Latest Patents
Schaefer's latest patents include a retarder and friction brake system designed to enhance vehicle safety and performance. This system integrates vehicle service brakes with a hydrodynamic retarder and friction brake, allowing for a more efficient braking process. The manual brake controls enable an initial brake application, followed by the application of service brakes or independent application of the service brakes. The design features a dual chamber hydrodynamic retarder with opposed bladed stators and a central rotor member, which provides limited axial movement and rotation. Additionally, the friction brake incorporates plates that are concentrically located within the retarder chambers, ensuring optimal braking performance.
Another significant patent involves a multiratio powershift transmission that utilizes fluid-operated drive devices. This innovative design includes a forward clutch with an apply chamber that engages and disengages based on fluid apply pressure. The transmission features a centrifugal dump valve that operates based on the input speed, allowing for seamless transitions between forward and reverse drives. This technology enhances the overall efficiency and reliability of vehicle transmissions.
Career Highlights
Robert H. Schaefer is currently employed at GM Global Technology Operations, Inc., where he continues to develop cutting-edge automotive technologies. His work has been instrumental in advancing the capabilities of modern vehicles, particularly in the areas of braking and transmission systems.
Collaborations
Throughout his career, Schaefer has collaborated with notable colleagues such as James C. Polak and Harry Fackenthal. These partnerships have fostered an environment of innovation and creativity, leading to the development of groundbreaking technologies in the automotive sector.
Conclusion
Robert H. Schaefer's contributions to automotive technology through his patents and collaborative efforts have significantly impacted the industry. His innovative designs in braking systems and transmissions demonstrate his commitment to enhancing vehicle safety and performance.