Company Filing History:
Years Active: 1982
Title: Richard E. Mullen: Innovator in Liquid Level Detection Technology
Introduction
Richard E. Mullen is a notable inventor based in Tustin, California. He has made significant contributions to the field of liquid level detection technology. His innovative approach has led to the development of a unique circuit that enhances safety in underwater lighting applications.
Latest Patents
Mullen holds a patent for a "Liquid level detection circuit for control of liquid level responsive." This invention features a liquid level presence detection circuit that includes a selectively gatable TRIAC connected in series with a load. The circuit is triggered into conduction by twin sensitive-gate SCRs, which are connected anode-to-cathode. The gates of the SCRs receive gating current from voltage divider circuits, responding to the presence of a conductive liquid bridging two spaced apart contacts of a liquid presence detecting probe. This technology is particularly useful in wet-niche lamp assemblies that provide underwater illumination in swimming pools. The circuit interrupts the flow of electrical energy to the lamp when the surrounding liquid level falls below a predetermined level, preventing over-temperature operation and potential damage. It resumes energy flow when the liquid level increases to a safe level, ensuring adequate cooling.
Career Highlights
Richard E. Mullen is associated with the Marley-Wylain Company, where he has applied his expertise in developing innovative solutions. His work has significantly impacted the safety and efficiency of underwater lighting systems.
Collaborations
Mullen has collaborated with notable colleagues, including Gordon F. Ehret and William N. Rowley. Their combined efforts have contributed to advancements in liquid detection technologies.
Conclusion
Richard E. Mullen's contributions to liquid level detection technology exemplify innovation in safety and efficiency. His patent reflects a commitment to enhancing underwater lighting systems, making them safer for users.
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