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:
Dec. 09, 1997
Filed:
Jan. 30, 1996
Michael K Sahm, Annandale, NJ (US);
The BOC Group, Inc., New Providence, NJ (US);
Abstract
A method and apparatus of refrigerating a heat load in which heat is indirectly exchanged between the heat load and a cryogenic refrigerant so that the heat load cools. Further heat is then indirectly exchanged between the heat load and the mechanical refrigerant. The mechanical refrigerant is subjected to refrigeration cycle in which the mechanical refrigerant is compressed, cooled, condensed, expanded and evaporated. Other heat is indirectly exchanged between the cryogenic refrigerant and the mechanical refrigerant. The cryogenic refrigerant is subjected to its heat exchange with the mechanical refrigerant after having exchanged heat with the heat load. The mechanical refrigerant is subjected to the indirect heat exchange with the cryogenic refrigerant between condensation and expansion of the mechanical refrigerant within the refrigeration cycle.