Company Filing History:
3 out of 1,258 
2 out of 42 
1 out of 81 
Years Active: 1982-2012
Title: Arthur R Nelson: Innovator in Cryogenic Technology
Introduction
Arthur R Nelson is a notable inventor based in Davenport, IA (US), recognized for his contributions to cryogenic technology. With a total of 6 patents, he has made significant advancements in the field, particularly in the design and functionality of cryogenic coolers.
Latest Patents
One of his latest patents is for a machined spring with an integral retainer for closed cycle cryogenic coolers. This innovative design features a retainer and spring that are machined from a single piece of material, allowing for threading to a piston in a closed cycle cryogenic cooler. The unitary nature of the retainer and spring prevents them from rubbing against each other during operation, which reduces debris generation. Additionally, the spring is designed as a double start helix, enhancing axial stability and minimizing side loading. Another significant patent is for a field integrated pulse tube cryocooler with SADA II compatibility. This invention consists of a unitary pulse tube expander that can be easily attached to a SADA II coldfinger and inserted within a Dewar assembly. The design encases the regenerator of the pulse tube expander in a regenerator sleeve and cold cap, allowing it to function as a drop-in replacement for a Stirling type expander in a SADA II coldfinger cryocooler.
Career Highlights
Throughout his career, Arthur R Nelson has worked with reputable companies such as Litton Systems, Inc. and Carleton Life Support Systems Inc. His experience in these organizations has contributed to his expertise in cryogenic systems and technologies.
Collaborations
Arthur has collaborated with notable individuals in his field, including Daniel James Belk and Thomas S Donahoe. These partnerships have likely fostered innovation and development in his projects.
Conclusion
Arthur R Nelson's contributions to cryogenic technology through his patents and collaborations highlight his role as a significant inventor in this specialized field. His work continues to influence advancements in cryogenic systems and applications.