William B MacKenna

Title: The Innovations of William B. MacKenna

Introduction

William B. MacKenna is an accomplished inventor based in Wheeling, IL (US). He is known for his significant contributions to the field of door control systems, particularly in the context of rapid transit vehicles. His innovative approach has led to advancements that enhance the safety and efficiency of transit operations.

Latest Patents

William B. MacKenna holds a patent for a door control system designed specifically for multiple door rapid transit vehicles. This system incorporates various car operating parameters, including car speed sensing and traction propulsion sensing, to establish and continuously test for predetermined conditions under which a power-operated door can be opened. The system features a low-speed detector that utilizes a micro-processor to evaluate car and circuit operating conditions, ensuring the control of all transit car doors. Additionally, the micro-processor recognizes predetermined failure modes, allowing the overall system to revert to a more conservative state in case of issues. Coded indications of failure modes are provided for easy identification and corrective action by train operating crews.

Career Highlights

William B. MacKenna is currently employed at Vapor Corp., where he continues to innovate and develop solutions for the transit industry. His work has been instrumental in improving the safety and functionality of door control systems in transit vehicles.

Collaborations

Throughout his career, William has collaborated with notable colleagues, including Philip M. Higgins and Lawrence G. Sickels. These partnerships have contributed to the advancement of technology in the field of transit systems.

Conclusion

William B. MacKenna's contributions to door control systems have made a significant impact on the transit industry. His innovative solutions continue to enhance safety and efficiency in rapid transit vehicles.