Cary, NC, United States of America

John T Carroll

This inventor holds 1 USPTO granted patent. Top assignee: Siemens-Allis, Inc.. Active years: 1983.

IDiyas Innovation Intelligence. (2026). Inventor Profile: John T Carroll. Retrieved from https://idiyas.com/inventor/john-t-carroll-9gescity

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile


% Patents Active = 100.0

Average Co-Inventor Count = 2.0

ph-index = 1

Forward Citations = 6(Granted Patents)


Company Filing History:


Years Active: 1983

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1 patent (USPTO):Explore Patents

Title: The Innovations of John T. Carroll

Introduction

John T. Carroll is a notable inventor based in Cary, NC (US). He has made significant contributions to the field of electrical engineering, particularly in circuit breaker technology. His innovative approach has led to the development of a unique device that enhances the safety and reliability of electrical systems.

Latest Patents

John T. Carroll holds a patent for an "Undervoltage Release Device for a Circuit Breaker." This direct acting undervoltage release device utilizes stored spring energy to trip a circuit breaker when the control voltage reduces to a critical level, known as undervoltage. The device features a solenoid that senses the undervoltage condition and includes a charging motor that automatically resets the device after a tripping operation, provided the control voltage recovers to its normal level. The direct acting feature is achieved by incorporating a chargeable trip spring and a trip pin in the circuit breaker, which directly drives the latch bar of the breaker to initiate the tripping process.

Career Highlights

John T. Carroll is currently employed at Siemens-Allis, Inc., where he continues to innovate and develop advanced electrical solutions. His work has been instrumental in improving the functionality and safety of circuit breakers, making them more efficient and reliable for various applications.

Collaborations

John collaborates with his coworker, Miguel B. Yamat, who shares a commitment to advancing technology in their field. Together, they work on projects that aim to enhance electrical safety and efficiency.

Conclusion

John T. Carroll's contributions to the field of electrical engineering, particularly through his patented undervoltage release device, demonstrate his innovative spirit and dedication to improving safety in electrical systems. His work at Siemens-Allis, Inc. continues to influence the industry positively.

Profile summary based on public USPTO records.
Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]
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