William H Dunn

Title: The Innovations of William H. Dunn

Introduction

William H. Dunn is a notable inventor based in Branchville, NJ (US). He has made significant contributions to the field of sewing technology, holding a total of 9 patents. His work primarily focuses on enhancing the functionality and efficiency of sewing machines, particularly in the area of buttonhole sewing.

Latest Patents

One of his latest patents is for a buttonhole sewing repair mechanism designed for family sewing machines. This innovative arrangement allows an operator to reinitiate the buttonhole operation in the event of a thread breakage without necessitating stitching during the part of the buttonhole that has already been completed. If a thread break occurs, the buttonhole can be repositioned to the starting point, and the buttonhole pattern can be reselected. This feature includes options for reverse feeding or other inputs not typically selected during buttonholing. The sewing machine feed continues as if stitching were occurring, and just before reaching the point of thread breakage, the needle bar release logic can be adjusted to resume stitching from a point just prior to the breakage.

Another significant patent involves an arrangement for operating an electronically controlled sewing machine in a diagnostic mode. This mode allows for various tests to check the machine's functionality. For instance, all light-emitting diodes on the sewing machine's panel can be sequentially energized to verify proper operation. Additionally, the machine can monitor motor speed and overall operation through several test patterns, ensuring that any faults can be isolated effectively.

Career Highlights

William H. Dunn has dedicated his career to improving sewing technology, particularly through his work with The Singer Company. His innovations have not only enhanced the user experience but have also contributed to the advancement of sewing machine technology.

Collaborations

Throughout his career, Dunn has collaborated with notable coworkers such as John W. Wurst and Leonard I. Horey. Their combined expertise has likely contributed to the successful development of various sewing machine technologies.

Conclusion

William H. Dunn's contributions to sewing technology through his patents and innovations have made a lasting impact on the industry. His work continues to influence the functionality of sewing machines, making them more efficient and user-friendly.