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.

Date of Patent:
Sep. 01, 1998

Filed:

Dec. 13, 1996
Applicant:
Inventors:

Dante Patrick Bonaquist, Grand Island, NY (US);

Kevin John Potempa, Amherst, NY (US);

Assignee:

Praxair Technology, Inc., Danbury, CT (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F25J / ;
U.S. Cl.
CPC ...
62646 ; 62654 ; 62924 ;
Abstract

A cryogenic air separation system wherein higher pressure column kettle liquid is divided into a portion introduced directly into the lower pressure and a portion which is substantially completely vaporized to drive an argon column top condenser, enabling the vaporization of elevated pressure liquid oxygen against feed air while maximizing argon recovery.


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