Company Filing History:
Years Active: 1978
Title: John A Mills - Innovator in Mining Control Circuits
Introduction
John A Mills is a notable inventor based in Norwalk, CT (US), recognized for his contributions to mining technology. He holds a patent for a control circuit specifically designed for shuttle cars used in mining operations. His innovative approach has significantly impacted the efficiency and functionality of mining equipment.
Latest Patents
Mills' patent, titled "Control Circuit for Shuttle Car," encompasses a sophisticated control circuit that integrates a chopper circuit, a reversing circuit, and a traction motor. This system is essential for the operation of shuttle cars in mining environments. The chopper circuit consists of two current paths through separate silicon controlled rectifiers (SCRs) and a common capacitor. The logic circuit, managed by the operator, alternates the gating of the SCRs, allowing for precise control over the voltage applied to the traction motor. This voltage directly influences the motor's speed, which is proportional to the frequency of the gating pulses. The reversing circuit also utilizes SCRs to manage the direction of the motor, enhancing the operational versatility of the shuttle car.
Career Highlights
Mills is associated with Firing Circuits Inc., where he has applied his expertise in electrical engineering to develop innovative solutions for the mining industry. His work has contributed to advancements in the safety and efficiency of mining operations.
Collaborations
Mills has collaborated with notable colleagues, including John P Salva and Gregory M Mudzinski, who have also contributed to the field of mining technology. Their combined efforts have fostered a collaborative environment that encourages innovation and the development of cutting-edge solutions.
Conclusion
John A Mills is a distinguished inventor whose work in control circuits for shuttle cars has made a significant impact on the mining industry. His innovative designs and collaborative spirit continue to inspire advancements in mining technology.