Location History:
- Elmhurst, IL (US) (1977 - 1978)
- Villa Park, IL (US) (1997)
- Anchorage, AK (US) (2012)
- Glen Ellyn, IL (US) (2002 - 2023)
Company Filing History:
3 out of 10 
3 out of 15 
3 out of 832,718 Years Active: 1977-2023
Title: The Innovative Contributions of Donald R. Hill
Introduction
Donald R. Hill is a notable inventor based in Glen Ellyn, IL (US). He has made significant contributions to the field of engineering, holding a total of 9 patents. His work primarily focuses on innovative machinery and processes that enhance manufacturing efficiency.
Latest Patents
One of Hill's latest inventions is the rotary stamper. This device includes an upper die plate assembly, a lower die plate assembly, and a support frame equipped with a drive assembly. The drive assembly moves the upper die plate both horizontally and vertically along a generally circular pathway while simultaneously moving the lower die plate along a linear horizontal pathway. The upper die plate is vertically slidably connected to the lower die plate through one or more vertical rods that extend from the lower die plate assembly up through the upper die plate. In operation, the lower die plate matches the horizontal movements of the upper die plate as it is moved along its circular pathway. Concurrently, the upper die plate moves towards and away from the lower die plate, maintaining a substantially constant alignment between the die plates for carrying out periodic machining operations on a moving web of material passing between them.
Career Highlights
Throughout his career, Donald R. Hill has worked with various companies, including Hill Engineering, Inc. His innovative designs and engineering solutions have contributed to advancements in manufacturing processes.
Collaborations
Hill has collaborated with notable individuals in his field, including James Gafkowski and James A. Gafkowski. These collaborations have further enriched his work and expanded the impact of his inventions.
Conclusion
Donald R. Hill's contributions to engineering and innovation are evident through his patents and collaborative efforts. His work continues to influence the manufacturing industry, showcasing the importance of creativity and technical expertise in driving progress.