David A Fox

Title: The Innovations of David A. Fox: A Pioneer in Circuit Design

Introduction: David A. Fox, based in Shawnee Township, Allen County, Ohio, is a distinguished inventor with an impressive portfolio of 30 patents. His contributions to the field of electrical engineering, particularly in circuit design and protection, have significantly impacted modern electrical systems.

Latest Patents: Among his latest patents, two stand out due to their innovative approaches and functionalities. The first is the **Overcurrent Trip Circuit**, which monitors both the rate of rise and magnitude of current in a power conductor. This inventive design triggers circuit interruption when either the current's rate of increase surpasses a specific threshold or its magnitude exceeds a preselected limit. Utilizing the inductance in a metering shunt, it generates a voltage signal that reflects the current's change rate, ultimately leading to a reliable trip signal to open the circuit under protective measures.

The second notable patent is the **Programmable Inverse Time Delay Circuit**. This circuit integrates a signal representative of voltage or current from an external source with a reference signal to produce a control signal. The innovative design allows for adjustable trip levels by comparing the control signal against a second reference signal, ensuring that the circuit can respond accurately to varying conditions.

Career Highlights: Throughout his career, David A. Fox has made significant advancements in the electrical engineering domain, most notably during his tenure at Westinghouse Electric Corporation. His commitment to innovation is evident in the patents he has secured, which focus on enhancing the safety and reliability of electrical systems.

Collaborations: David has collaborated with several notable professionals in the industry, including Donal E. Baker and William W. Billings. These partnerships have fostered an environment of innovation, leading to the development of cutting-edge technologies that address complex challenges in electrical engineering.

Conclusion: David A. Fox's contributions to electrical circuit design exemplify the spirit of innovation. With 30 patents to his name, his work continues to influence the industry, paving the way for future advancements. His inventions, particularly the Overcurrent Trip Circuit and the Programmable Inverse Time Delay Circuit, highlight his prowess in creating safety mechanisms that protect electrical systems and ensure efficient operation.