Paul W McLeod

Title: The Innovations of Paul W. McLeod

Introduction

Paul W. McLeod is a notable inventor based in Warrenville, South Carolina. He has made significant contributions to the field of ignition technology, holding a total of four patents. His work focuses on improving the efficiency and functionality of ignition systems in internal combustion engines.

Latest Patents

Among his latest patents is a discharge ignition apparatus designed for internal combustion engines. This improved capacitive discharge ignition apparatus provides spark advance with engine speed. The ignition apparatus includes at least one trigger circuit, which features a trigger coil preferably contained in a common housing with other circuit elements. In this design, an auxiliary coil may be included to cancel certain pulses in the trigger coil output that could otherwise interfere with desired operation. Additionally, a second trigger circuit is provided to derive a triggering signal from the primary coil of the ignition's step-up transformer. A triggering signal of appropriate magnitude received from either trigger circuit will cause the discharge of an energy storage element through the primary coil. Another patent focuses on a discharge ignition apparatus that includes disable circuitry for permitting the shut-off of the engine. This disable circuitry consists of a silicon-controlled rectifier (SCR) and a transistor in series, providing a bypass for current that would otherwise charge the ignition capacitor. The SCR is gated by an RC circuit charged by momentary contact of a user-actuated switch. The transistor is rendered conductive only during periods when a positive voltage is induced on the charge coil, thereby limiting the discharge of the RC circuit. Furthermore, the RC circuit is regeneratively charged by a leakage current through the SCR gate, achieving engine stoppage regardless of the time required.

Career Highlights

Paul W. McLeod is currently associated with R.E. Phelon Company, Inc., where he continues to innovate in the field of ignition technology. His work has been instrumental in advancing the capabilities of ignition systems, making them more reliable and efficient.

Collaborations

One of his notable coworkers is Charles W. Brinkley, with whom he has likely collaborated on various projects within the company.

Conclusion

Paul W. McLeod's contributions to ignition technology have made a significant impact on the efficiency of internal combustion engines. His innovative patents reflect his dedication to improving engine performance and reliability.