Location History:
- Ontario, CA (1990)
- Brooklin, CA (1984 - 2001)
Company Filing History:
7 out of 7 
1 out of 3 
1 out of 4 Years Active: 1984-2001
Title: Joseph A. Mulcahy: Innovator in Electric Arc Furnace Technology
Introduction
Joseph A. Mulcahy is a notable inventor based in Brooklin, CA, with a remarkable portfolio of 10 patents. His work primarily focuses on advancements in electric arc furnace technology, which plays a crucial role in metal melting processes.
Latest Patents
One of his latest patents is the Electric Arc Furnace Controller. This invention includes a container for receiving metal, an electrode spaced apart from the container, and an electrical power source that generates an electrical discharge for melting the metal. The arc furnace features a flicker controller designed to reduce flicker induced in the power source by the electric arc furnace. The flicker controller consists of a switch connected to the power source and the electrode, along with a control system that maintains a constant magnitude of reactive current flow through the arc furnace.
Another significant patent is the Method and Apparatus for Control of Stirring in Continuous Casting. This induction stirring method allows for the electromagnetic stirring of molten metal during continuous casting in a mold. It includes control of the stirring velocity at the meniscus, either to decrease or enhance the stirring motion produced by the main electromagnetic stirrer. An A.C. magnetic stirring modifier is strategically positioned to produce electromagnetic stirring at the meniscus, allowing for flexibility in casting molten metals under varying operating conditions.
Career Highlights
Throughout his career, Joseph has worked with several companies, including J. Mulcahy Enterprises Inc. and Inverpower Controls Ltd. His contributions to the field of electric arc furnace technology have been instrumental in improving efficiency and effectiveness in metal processing.
Collaborations
Joseph has collaborated with notable professionals in the industry, including Leonid Beitelman and Dawit Tadesse. Their combined expertise has further advanced the innovations in electric arc furnace technology.
Conclusion
Joseph A. Mulcahy's contributions to electric arc furnace technology through his patents and collaborations have significantly impacted the industry. His innovative approaches continue to shape the future of metal processing.