Theodore A Hirt

Title: The Innovations of Theodore A. Hirt

Introduction

Theodore A. Hirt is a notable inventor based in Warren, Ohio, recognized for his contributions to the field of electro-chemical plating. With a total of 3 patents to his name, Hirt has developed innovative methods and apparatuses that enhance the efficiency and effectiveness of metallic strip plating.

Latest Patents

Hirt's latest patents include a "Method and apparatus for energizing metallic strip for plating." This invention features a novel contact roll assembly designed specifically for electro-chemical plating of metallic strips. The contact roll is rotatably mounted on a stationary support attached to a bus bar. The regions of contact between the stationary support and the contact roll utilize metallic inserts, which not only support the roll but also provide bearing surfaces for journaling the roll and facilitate large surface contact areas for the flow of plating current.

Another significant patent is for the "Electro-co-deposition of corrosion-resistant nickel/zinc alloys onto substrates." This patent discloses novel plating baths and processes that yield corrosion-resistant nickel/zinc alloy coatings containing 13-15 weight/% of nickel for iron or steel substrates. The baths maintain a combined nickel and zinc content ranging from 14 to 24 ounces of metal per gallon, with a nickel to zinc ratio of 0.1:0.4. These baths allow for satisfactory plating at current densities between 30 to 120 amperes per square foot. The resulting alloy coating thicknesses range from 0.00005 to 0.0005 inches, providing a salt spray corrosion resistance exceeding 0.5 hours per microinch. Additionally, applying a substantially pure nickel priming layer before alloy plating can effectively double the corrosion resistance rate.

Career Highlights

Throughout his career, Theodore A. Hirt has worked with various companies, including Thomas Steel Strip Corporation. His work has significantly impacted the field of plating technology, leading to advancements that improve the durability and performance of coated materials.

Collaborations

Hirt has collaborated with notable individuals in his field, including Robert H. Dillon and James R. Holmstrom. These collaborations have contributed to the development of innovative solutions in electro-chemical plating.

Conclusion

Theodore A. Hirt's contributions to the field of electro-chemical plating through his patents and career achievements highlight his role as an