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. 23, 1997
Filed:
Feb. 20, 1996
Applicant:
Inventor:
Friedel Michel, Erkath, DE;
Assignee:
Messer Griesheim GmbH, , DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F25B / ;
U.S. Cl.
CPC ...
62614 ; 62 502 ; 62616 ;
Abstract
Two heat exchangers are hooked up together in order to generate a flow of cold gas. A deep-frozen liquefied medium is evaporated in the first heat exchanger (1) by means of heat exchange with a heat transfer medium. The evaporated medium is re-cooled in the second heat exchanger. The deep-frozen liquefied cryogenic medium used for this purpose is likewise evaporated in this process. The two flows of gas thus generated are conveyed to a mixing site and then combined to form a flow of cold gas.