John E Hrivnak

Title: Innovations of John E Hrivnak in Industrial Yarn Manufacturing

Introduction

John E Hrivnak is a notable inventor based in Clinton, OH (US), recognized for his contributions to the field of industrial yarn manufacturing. With a total of 5 patents to his name, Hrivnak has developed innovative processes that enhance the quality and performance of industrial yarns.

Latest Patents

Hrivnak's latest patents include a "Process for manufacturing polyethylene terephthalate industrial yarn" and a "Process for manufacturing industrial yarn." The first patent describes an improved method for producing highly uniform industrial yarn that exhibits high tenacity, high modulus, and very low shrinkage. This process involves melt spinning polyethylene terephthalate into spun filaments and drawing them in a heated zone to achieve specific birefringence and crystallinity levels. The second patent focuses on the manufacturing of industrial yarn used in various applications, such as conveyor belts and seat belts, emphasizing the importance of high tenacity and dimensional stability.

Career Highlights

Hrivnak is currently employed at The Goodyear Tire & Rubber Company, where he applies his expertise in developing advanced materials for tire manufacturing and other applications. His work has significantly contributed to the enhancement of product performance and durability.

Collaborations

Throughout his career, Hrivnak has collaborated with notable colleagues, including Donald L Brown and Richard M Oblath, to further innovate in the field of industrial materials.

Conclusion

John E Hrivnak's innovative approaches to industrial yarn manufacturing have made a significant impact on the industry. His patents reflect a commitment to improving material properties and performance, showcasing his role as a key inventor in this field.