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:
Sep. 25, 2007
Filed:
Sep. 27, 2004
Peter J. Littrup, Bloomfield Hills, MI (US);
Alexei V. Babkin, Albuquerque, NM (US);
Robert Duncan, Tijeras, NM (US);
Sergey Boldarev, Moscow, RU;
Peter J. Littrup, Bloomfield Hills, MI (US);
Alexei V. Babkin, Albuquerque, NM (US);
Robert Duncan, Tijeras, NM (US);
Sergey Boldarev, Moscow, RU;
Cryodynamics, LLC, Bloomfield Hills, MI (US);
Abstract
Methods and systems are provided for cooling an object with a cryogen having a critical point defined by a critical-point pressure and a critical-point temperature. A pressure of the cryogen is raised above a pressure value determined to provide the cryogen at a reduced molar volume that prevents vapor lock. Thereafter, the cryogen is placed in thermal communication with the object to increase a temperature of the cryogen along a thermodynamic path that maintains the pressure greater than the critical-point pressure for a duration that the cryogen and object are in thermal communication.