John F Yungman

Title: Innovations by John F. Yungman

Introduction

John F. Yungman is an accomplished inventor based in Delmar, NY (US). He has made significant contributions to the field of piano technology, particularly in evaluating the state of piano hammer felt. With a total of two patents to his name, Yungman's work focuses on enhancing the tonal quality of pianos through innovative methods.

Latest Patents

Yungman's latest patents include a quantitative method for evaluating the state of piano hammer felt. This method involves measuring the dynamic hardness of elastic materials, specifically applied to determining the tonal quality of a piano hammer. The process includes selecting a piano hammer of a predetermined type, causing it to strike an impact surface resembling a piano string, and measuring various elements of force and motion during the impact. By determining the cut-off frequency of the power spectrum for the selected piano hammer and comparing it against a predetermined range, Yungman’s method provides a reliable evaluation of piano hammer quality. An apparatus for testing is also described in his patent.

Career Highlights

Yungman is affiliated with Rensselaer Polytechnic Institute, where he continues to contribute to research and development in the field of music technology. His innovative approaches have garnered attention and respect within the industry.

Collaborations

Yungman has collaborated with notable colleagues such as Henry August Scarton and Warren C. Kennedy. Their combined expertise has further advanced the research and development of piano technology.

Conclusion

John F. Yungman is a notable inventor whose work in piano technology has led to significant advancements in evaluating piano hammer quality. His innovative methods and collaborations continue to influence the field positively.