Donald Charles Francis, Jr

Title: Innovations by Donald Charles Francis, Jr.

Introduction

Donald Charles Francis, Jr. is an accomplished inventor based in Cedar Rapids, IA (US). He holds a total of 3 patents that showcase his contributions to the field of electrical engineering, particularly in circuit breaker technology. His innovative designs focus on enhancing safety and functionality in electrical systems.

Latest Patents

One of his notable inventions is a circuit breaker with a handle locking device. This invention provides an electrical switch locking assembly that inhibits movement of a switch handle. The design includes a casing that allows the switch handle to move between positions to open or close electrical contacts. The locking device features legs that pivot like scissors, ensuring that the switch handle can be securely locked in a desired position. This mechanism allows a circuit to be maintained in either a de-energized or energized state until a change is authorized.

Another significant patent is a circuit breaker with improved impact resistance. This assembly is designed to withstand external forces applied to the switch handle lever. During normal operation, the handle rotates on small-diameter pivots. However, under abnormal conditions, such as when the lever is inadvertently struck, the pivots slide in elongated bearing slots. This design prevents damage to the circuit breaker by ensuring that the pivots are not shorn off during such incidents.

Career Highlights

Donald has worked with reputable companies, including Square D Company, where he contributed to advancements in circuit breaker technology. His experience in the industry has allowed him to develop innovative solutions that enhance the safety and reliability of electrical systems.

Collaborations

Throughout his career, Donald has collaborated with talented individuals such as Randall L. Siebels and Douglas Paul Van Waart. These collaborations have fostered an environment of innovation and creativity, leading to the development of groundbreaking technologies.

Conclusion

Donald Charles Francis, Jr. is a notable inventor whose work in circuit breaker technology has made significant contributions to electrical engineering. His innovative patents reflect his commitment to enhancing safety and functionality in electrical systems.