John C Culligan

Title: The Innovations of John C. Culligan

Introduction

John C. Culligan is a notable inventor based in Kenner, Louisiana. He has made significant contributions to the field of electrical engineering, particularly in the development of control circuits. His innovative approach has led to the creation of a patented technology that enhances the efficiency of contactor systems.

Latest Patents

One of John C. Culligan's key patents is titled "Time Ratio Control Circuit for Contactor or the Like." This invention provides a system for controlling current flow to the actuating coil of a contactor. The design incorporates a solid-state switch that gates current flow to the coil, operated by an oscillator stage. Initially, a time delay allows the oscillator to function at a high duty cycle, enabling a relatively high current to flow to the contactor coil. This feature ensures that the contacts operate effectively. Subsequently, the control mechanism adjusts the oscillator to operate at a low duty cycle, significantly reducing the current flow to maintain the contacts in position. This innovation is crucial for improving the reliability and efficiency of electrical systems.

Career Highlights

John C. Culligan has worked with Siemens-Allis, Inc., where he has applied his expertise in electrical engineering. His role at the company has allowed him to collaborate with other talented professionals in the field.

Collaborations

Some of his notable coworkers include Frederick A. Stich and Conrad F. Williams. Their collective efforts have contributed to advancements in electrical engineering and control systems.

Conclusion

John C. Culligan's contributions to the field of electrical engineering, particularly through his patented innovations, demonstrate his commitment to enhancing technology. His work continues to influence the efficiency of electrical systems today.