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:
Apr. 17, 1990
Filed:
Feb. 23, 1989
Applicant:
Inventors:
Kazuo Haruna, Hyogo, JP;
Kanji Ueda, Osaka, JP;
Masahiro Inoue, Hyogo, JP;
Hitosi Someda, Yachiyo, JP;
Assignee:
Sumitomo Seika Chemicals Co., Ltd., Hyogo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D / ;
U.S. Cl.
CPC ...
55 26 ; 55 58 ; 55 62 ; 55 68 ; 55 75 ;
Abstract
A process for recovering an oxygen enriched gas from a mixed gas mainly composed of nitrogen gas and oxygen gas by means of PSA comprising: