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:
Oct. 16, 1984
Filed:
Mar. 30, 1983
Applicant:
Inventors:
Wilbur C Kratz, Macungie, PA (US);
Shivaji Sircar, Wescosville, PA (US);
Assignee:
Air Products and Chemicals, Inc., Allentown, PA (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
B01D / ;
U.S. Cl.
CPC ...
55 25 ; 55 31 ; 55 33 ; 55 58 ; 55 62 ; 55 68 ; 55 75 ;
Abstract
A simplified low-cost system designed for home use in the direct administration of high purity oxygen to a patient, utilizes a single adsorption column containing successive layers of adsorbent. The first layer is composed of a molecular sieve adsorbent for removal of water and CO.sub.2 from the air feed stream. The second layer is a molecular sieve adsorbent which preferentially retains nitrogen. The sequence and conditions of the several steps of the operating cycle are designed to recover a therapeutic gas stream of about 90% oxygen content.