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:
Jul. 14, 1998
Filed:
May. 19, 1997
Applicant:
Inventor:
Bernard Darredeau, Sartrouville, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F25B / ;
U.S. Cl.
CPC ...
62653 ; 62924 ;
Abstract
An installation for the production of argon comprising a double column (1, 3) and an argon purification column (5). An auxiliary column (9) serves to effect the nitrogen-oxygen separation, and is supplied by a stream from the low pressure column (3). Therefore, nitrogen does not contaminate the stream sent to the argon purification column (5).
Darredeau, Bernard. (1998). Process and installation for the production of argon by cryogenic (U.S. Patent No. 5778699). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5778699
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