This inventor holds 3 USPTO granted patents. Top assignee: Chicago Bridge & Iron Company. Active years: 1985-1986.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Location History:
- Naperville, IL (US) (1985)
- Cambridge, MA (US) (1986)
Company Filing History:
Years Active: 1985-1986
Title: John S Ludwigsen: Innovator in Cold Liquid Production and Structural Engineering
Introduction
John S Ludwigsen is a notable inventor based in Naperville, IL (US). He has made significant contributions to the fields of cold liquid production and structural engineering. With a total of 3 patents to his name, Ludwigsen's work showcases his innovative approach to solving complex engineering challenges.
Latest Patents
Ludwigsen's latest patents include an "Apparatus and method for cold aqueous liquid and/or ice production." This invention involves a method that feeds a liquefied refrigerant gas into direct contact with aqueous liquid in an enclosed vessel. The process chills or cools the liquid and produces ice crystals while vaporizing the refrigerant through heat exchange. The system is designed to maintain a closed loop, ensuring that refrigerant and aqueous liquid are not lost except through inadvertent leaks.
Another significant patent is the "Passive structure with energy absorbing capacity." This invention features a passive support structure that comprises rigid compression members and extendable tensile members. The design allows for only compressive forces to be generated, accommodating externally applied forces through elastic tensile members. This innovative structure enhances energy absorption and dissipation, making it a valuable contribution to engineering.
Career Highlights
Ludwigsen is currently associated with the Chicago Bridge & Iron Company, where he applies his expertise in engineering and innovation. His work has been instrumental in advancing technologies related to cold liquid production and structural integrity.
Collaborations
Throughout his career, Ludwigsen has collaborated with notable colleagues, including Jill L Ludwigsen and Terry A Gallagher. These partnerships have fostered a creative environment that encourages the development of groundbreaking inventions.
Conclusion
John S Ludwigsen's contributions to innovation in cold liquid production and structural engineering highlight his role as a leading inventor. His patents reflect a commitment to advancing technology and improving engineering practices.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile