Location History:
- Shrewsberry, MA (US) (1987)
- Shrewsbury, MA (US) (1990)
Company Filing History:
Years Active: 1987-1990
Title: David C. Planchard: Innovator in Cryogenic Technology
Introduction
David C. Planchard is a notable inventor based in Shrewsbury, MA (US). He has made significant contributions to the field of cryogenic technology, holding a total of 4 patents. His innovative approaches have led to advancements in refrigeration systems, showcasing his expertise and dedication to improving existing technologies.
Latest Patents
One of Planchard's latest patents is a replacement method and apparatus for a cryogenic refrigeration unit. This invention addresses the challenges faced when a refrigerator unit is removed. The method involves heating the inner surfaces of the refrigeration unit housing to prevent the external atmosphere from contacting these surfaces, thereby avoiding ice formation. A heat gun is utilized alongside an apparatus that distributes heated gas, such as nitrogen, to various parts of the housing. This ensures that the inner surfaces reach the same temperature simultaneously, allowing for effective cleaning before the refrigeration unit is replaced.
Another significant patent is the bypass relief poppet valve. This invention features a poppet valve designed to eliminate resonant chattering within the relief valve. The poppet valve includes multiple holes within its truncated portion, maintaining a fluid pressure difference of about zero between the internal cylinder and the valve housing. This innovative design enhances the functionality and reliability of relief valves in various applications.
Career Highlights
David C. Planchard is currently employed at Helix Technology Corporation, where he continues to develop and refine technologies in the cryogenic field. His work has not only contributed to the company's success but has also advanced the industry as a whole.
Collaborations
Throughout his career, Planchard has collaborated with talented individuals such as Paul D. Lanoue and Michael J. Eacobacci. These partnerships have fostered innovation and have led to the successful development of several patents.
Conclusion
David C. Planchard is a distinguished inventor whose work in cryogenic technology has made a lasting impact. His innovative patents and collaborations reflect his commitment to advancing the field and improving refrigeration systems.