Company Filing History:
Years Active: 1981-2003
Title: Innovations by Joel H. Cohen
Introduction
Joel H. Cohen is a notable inventor based in Cincinnati, OH (US). He has made significant contributions to the field of engineering, particularly in the development of advanced materials and welding techniques. With a total of 4 patents to his name, Cohen's work has had a substantial impact on various industrial applications.
Latest Patents
Cohen's latest patents include a nickel-base braze material and a braze repair method. This innovative braze material is designed for repairing components such as gas turbine engine combustor liners made from nickel-base or cobalt-base superalloys. The braze material consists of a nickel-base braze alloy, preferably in powder form, which can be mixed with a suitable vehicle to create a slurry, putty, or solid tape. This alloy is specifically formulated to endure the high-temperature environment of a combustor liner while maintaining a melting temperature that prevents grain growth or incipient melting of the superalloy being repaired. A preferred composition includes various elements such as chromium, cobalt, titanium, aluminum, tungsten, molybdenum, carbon, zirconium, and boron, with nickel making up the balance.
Another significant patent by Cohen is a low electric D.C., low time rate polarity reversing arc welding method. This method allows for direct electric current arc welding between an electrode and a workpiece surface within a current range of about 0.5-45 amps. The technique involves reversing polarities at a low frequency, which facilitates anodic cleaning of the workpiece surface during the welding process.
Career Highlights
Cohen is currently associated with General Electric Company, where he continues to innovate and contribute to advancements in engineering and technology. His work has been instrumental in enhancing the performance and reliability of critical components in various applications.
Collaborations
Cohen has collaborated with notable colleagues, including Gilbert E. Flowers and Earl L. Kelly, Jr. These partnerships have fostered a collaborative environment that encourages innovation and the sharing of ideas.
Conclusion
Joel H. Cohen's contributions to the field of engineering through his patents and innovative methods have established him as a prominent figure in the industry. His work continues to influence advancements in materials and welding techniques, showcasing the importance of innovation in engineering.