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:
Feb. 18, 2003
Filed:
Jun. 30, 2000
Applicant:
Inventors:
Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61M 1/500 ;
U.S. Cl.
CPC ...
A61M 1/500 ;
Abstract
An oxygen concentrator portable by a patient, permitting producing a flow of gas containing 50% to 95% of oxygen from air, comprising air compression device, elements for gas separation by adsorption with pressure variations, and electrical energy storage unit keeping its charge for at least 30 minutes, the concentrator having a total weight less than 10 kg. Preferably, the gas separation elements are a PSA system using a zeolite X exchanged with lithium, as the adsorbent.