Carl L Deppisch

Title: The Innovations of Carl L Deppisch

Introduction

Carl L Deppisch is a notable inventor based in Hamden, Connecticut. He has made significant contributions to the field of materials science, particularly in the development of advanced brass alloys. With a total of three patents to his name, Deppisch has focused on enhancing the performance characteristics of brass in various applications.

Latest Patents

One of his latest patents is for a stress relaxation resistant brass. This alpha brass, which is a copper/zinc alloy with less than 39% by weight of zinc, features controlled additions of nickel, tin, and phosphorous. The combination of nickel and tin increases the alloy's resistance to elevated temperature stress relaxation. As a result, spring contacts formed from this alloy maintain a higher percentage of initially imposed stress at elevated temperatures, ranging from 125°C to 150°C, for significantly longer times than other comparable brass alloys.

Another significant patent is for an iron modified tin brass. This alloy has a refined grain structure achieved through the addition of controlled amounts of both zinc and iron. The direct chill cast alloys contain from 1% to 4% by weight of tin, from 0.8% to 4% of iron, and up to 35% of zinc, with the remainder being copper and inevitable impurities. The addition of zinc not only increases the strength of the alloy but also improves its bend formability in a favorable manner, perpendicular to the longitudinal axis of a rolled strip. Certain grain refined brass alloys developed by Deppisch are also useful as semisolid forming feedstock.

Career Highlights

Carl L Deppisch is currently associated with Olin Corporation, where he continues to innovate and develop new materials. His work has been instrumental in advancing the capabilities of brass alloys, making them more suitable for demanding applications.

Collaborations

Throughout his career, Deppisch has collaborated with notable colleagues, including John F Breedis and Ronald N Caron. These collaborations have contributed to the successful development of his patented technologies.

Conclusion

Carl L Deppisch's contributions to the field of materials science, particularly through his innovative brass alloys, have made a significant impact. His patents reflect a commitment to enhancing the performance and applicability of brass in various industries.