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:
Aug. 06, 1991
Filed:
Apr. 01, 1987
Karl H Schweigert, Munich, DE;
Linde Aktiengesellschaft, Wiesbaden, DE;
Abstract
In a process for production of nitrogen by low-temperature rectification of air, the air is compressed and divided into two partial streams of which the first partial stream is cooled and fed to a rectification zone, while the second partial stream is further compressed, cooled, expanded and then also fed to the rectification zone. The first partial stream, before it is fed to the rectification zone, is brought into heat exchange relation with the bottom liquid of the rectification zone. A nitrogen product stream is removed from an upper section of the rectification zone.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile