James A O'Brien

Title: Innovations by James A O'Brien

Introduction

James A O'Brien is an accomplished inventor based in Burbank, CA. He has made significant contributions to the field of door control technology, holding a total of 3 patents. His innovative designs focus on enhancing the functionality and efficiency of swinging doors.

Latest Patents

One of his latest inventions is the "Regenerative feedback door control device with one-way clutch." This device is designed to close swinging doors by utilizing a rotating member to compress a spring during the door's opening. The stored energy in the spring is then used to effectuate the door's closing. A driving connection to a d.c motor/generator allows for the generation of electrical energy during the closing movement, which is fed back to the motor/generator to provide a braking effect. The feedback circuitry includes a switch that can disable or diminish the braking during the final degrees of closing, along with a variable setting device for controlling the braking force.

Another notable invention is the "Easy opening door control device." This device employs an externally powered motor to compress a spring during the door's opening, allowing for minimal electrical energy usage. The motor is not responsible for opening the door but is solely used to compress the spring, facilitating an easy opening. Similar to his other invention, the motor acts as a generator during the closing of the door, with the generated electrical energy being fed back to retard the rotor's rotation, providing a braking effect.

Career Highlights

James A O'Brien is currently associated with Thomas Industries, Inc., where he continues to innovate and develop new technologies. His work has significantly impacted the efficiency and usability of door control systems.

Collaborations

James has collaborated with George F Toledo, contributing to the advancement of their shared projects and innovations.

Conclusion

James A O'Brien's inventive spirit and dedication to improving door control technology have led to significant advancements in the field. His patents reflect a commitment to innovation and efficiency, making him a notable figure in the industry.