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:
Jun. 29, 1993
Filed:
Feb. 24, 1992
Applicant:
Inventor:
Neno T Nenov, Williamsville, NY (US);
Assignee:
Praxair Technology, Inc., Danbury, CT (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F25J / ;
U.S. Cl.
CPC ...
62 39 ; 62 87 ;
Abstract
A cryogenic rectification system employing a coupled expander and compressor wherein a process stream employs system energy to drive the expander to compress product nitrogen while generating refrigeration to assist in carrying out the rectification thereby carrying out the rectification at a lower pressure.