Location History:
- Millerton, PA (US) (1989 - 1992)
- Elmira, NY (US) (1994 - 2004)
Company Filing History:
Years Active: 1989-2004
Title: The Innovative Contributions of Donald N. Terwilliger
Introduction
Donald N. Terwilliger is a notable inventor based in Elmira, NY (US). He has made significant contributions to the field of engineering, particularly in the design and functionality of collet chuck assemblies. With a total of seven patents to his name, Terwilliger's work showcases his dedication to innovation and problem-solving in manufacturing processes.
Latest Patents
Among his latest patents is the "Dead Length Collet Chuck Assembly." This invention features a mount, a selectively-axially-movable collet closing sleeve, and a multiple-segment collet head. The collet head is designed with two axially-spaced outer circumferential cam surfaces that engage with the inner circumferential cam surfaces of the closing sleeve. Additionally, a quick-release cap is attached to the mount, which includes tabs that engage with the collet head to prevent axial movement. The design also incorporates flat resilient collet seals to keep debris out of the assembly, ensuring optimal performance.
Another significant patent is the "Collet Chuck with Quick-Change Cap." This assembly includes an annular mount that can be attached to a spindle of a turning machine. It features a tubular collet sleeve with an inner tapered cam surface and a tubular collet structure with a cooperating tapered outer cam surface. The design allows for easy engagement and disengagement of the cap, which is secured by an anti-rotation mechanism to prevent unwanted movement during operation.
Career Highlights
Throughout his career, Terwilliger has worked with reputable companies such as Hardinge Brothers, Inc. and Hardinge, Inc. His experience in these organizations has allowed him to refine his skills and contribute to advancements in manufacturing technology.
Collaborations
Terwilliger has collaborated with notable individuals in the industry, including Richard C. Knox and Douglas Edward Brackley. These partnerships have likely fostered an environment of creativity and innovation, leading to the development of his patented inventions.
Conclusion
Donald N. Terwilliger's contributions to the field of engineering through his innovative patents demonstrate his expertise and commitment to advancing manufacturing technology. His work continues to influence the industry and inspire future inventors.
Inventor’s Patent Attorneys refers to legal professionals with specialized expertise in representing inventors throughout the patent process. These attorneys assist inventors in navigating the complexities of patent law, including filing patent applications, conducting patent searches, and protecting intellectual property rights. They play a crucial role in helping inventors secure patents for their innovative creations.