Location History:
- Des Plaines, IL (US) (1980)
- Evanston, IL (US) (1985)
Company Filing History:
Years Active: 1980-1985
Title: The Innovations of Richard A. Stumpf
Introduction
Richard A. Stumpf is a notable inventor based in Des Plaines, IL (US). He has made significant contributions to the field of door control systems and vehicular data handling. With a total of 2 patents, his work has had a considerable impact on transit vehicle operations.
Latest Patents
Stumpf's latest patents include a door control system designed for multiple door rapid transit vehicles. This system utilizes car operating parameters such as car speed sensing and traction propulsion sensing to establish conditions under which power-operated doors can be opened. A low-speed detector incorporates a micro-processor to evaluate car and circuit operating conditions, ensuring the control of all transit car doors. Additionally, the system recognizes predetermined failure modes, allowing for a more conservative operational state in case of issues.
Another significant patent is the vehicular data handling and control system. This onboard unit consists of a tape recorder and associated data handling components that provide records of vehicular operating information. It tracks speed, distance, power level, braking level, and traction motor current, among other control events. The system is designed to retain a unique non-volatile serial number, facilitating the correlation of recorded tapes to onboard units.
Career Highlights
Richard A. Stumpf has worked at Vapor Corp., where he has applied his innovative ideas to enhance transit vehicle technology. His expertise in developing control systems has positioned him as a key figure in the industry.
Collaborations
Stumpf has collaborated with notable coworkers such as Bernard E. Callahan and George A. Carlson. Their combined efforts have contributed to the advancement of technology in their respective fields.
Conclusion
Richard A. Stumpf's contributions to door control systems and vehicular data handling demonstrate his innovative spirit and commitment to improving transit vehicle operations. His patents reflect a deep understanding of technology and its applications in real-world scenarios.