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. 08, 1992
Filed:
Aug. 02, 1991
Applicant:
Inventors:
Gilbert Chevalier, Guyancourt, FR;
Christiane Muller, Jouy en Josas, FR;
Frederic Rousseau, Paris, FR;
Laurent Savinel, Toul, FR;
Jean-Yves Thonnelier, Voisins le Bretonneux, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F25J / ;
U.S. Cl.
CPC ...
62 36 ; 62 42 ; 165166 ;
Abstract
The apparatus comprises a heat exchange line, a fractionating column which is cooled by means of a rich liquid and a section for adiabatic enrichment with nitrogen derived from entering air, the whole being integrated into a parallelepipedal heat exchanger of the plates and blades type. Use for the production of nitrogen of average purity.