The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 12, 2024
Filed:
Sep. 03, 2021
Children's Hospital Medical Center, Cincinnati, OH (US);
Charles Lucian Dumoulin, Cincinnati, OH (US);
CHILDREN'S HOSPITAL MEDICAL CENTER, Cincinnati, OH (US);
Abstract
Apparatus and methods to create and/or enhance thermal gradients in a body of cryogenic liquid contained in a vessel that is actively cooled by a cryocooler is provided. With such apparatus and/or methods temperature in one part of the body of liquid can be made lower than the temperature in another part of the body of liquid. Thus, the apparatus and/or methods enables cryogenic operation of a device at a temperature that is below that of the boiling point of the cryogenic liquid while simultaneously allowing the liquid to be at a pressure greater than atmospheric pressure to obviate the risk of air entering the cryogenic space. These apparatus and/or methods may find use in cryogenic systems used for magnetic resonance imaging, cyclotrons for radioisotope generation, cyclotrons for radiation therapy, high-energy particle accelerators, magnet systems for crystal growth and the like.