David A Porteous

Title: David A Porteous: Innovator in Hydro-Pneumatic Brake Technology

Introduction

David A Porteous is a notable inventor based in Burlington, CA. He has made significant contributions to the field of hydro-pneumatic brake technology, holding a total of 2 patents. His innovative designs have improved the functionality and efficiency of braking systems in various applications.

Latest Patents

One of Porteous's latest patents is a test connector for accessing compressed air at test ports of a railroad. This test connector allows for the connection of an air brake test device to access ports of an air brake control valve device, which are typically closed by check valves. The design includes multiple actuator devices that unseat the check valves, enabling the conduction of test air to the test device through central passages in the actuators. These actuators are piston-operated and respond to pilot pressure from a remote source of compressed air.

Another significant patent by Porteous is a hydro-pneumatic brake actuator designed to maintain a constant brake. This actuator features a slack adjuster piston and a one-way check valve device in the hydraulic path between the hydro-pneumatic actuator and a power piston. This innovative design ensures that during brake release, the one-way check valve closes a passage through the slack adjuster piston, allowing for precise control of hydraulic fluid flow. This mechanism effectively maintains a constant brake shoe clearance during brake release, enhancing the overall performance of the braking system.

Career Highlights

Throughout his career, David A Porteous has worked with prominent companies in the industry, including Westinghouse Air Brake Company and Wabco GmbH. His experience in these organizations has contributed to his expertise in brake technology and innovation.

Collaborations

Porteous has collaborated with notable individuals in his field, including Eric G Smith and Albert A McKay. These collaborations have likely fostered an environment of innovation and shared knowledge, further advancing the technology in which he specializes.

Conclusion

David A Porteous is a distinguished inventor whose work in hydro-pneumatic brake technology has led to significant advancements in the field. His patents reflect a commitment to improving safety and efficiency in braking systems. His contributions continue to influence the industry and inspire future innovations.