Portable oxygen concentrator

US6520176B1 · kind B1 · utility

Assignee

• L'Air Liquide, Société Anonyme à Directoire et Conseil de Surveillance pour l'Étude et l'Exploitation des Procédés Georges Claude · FR

Inventors

• Anne Dubois · Le Chesnay, FR
• Pierre Bodelin · Vanves, FR
• Xavier Vigor · Viroflay, FR

Key dates

• Filing date: Jun 30, 2000
• Grant date: Feb 18, 2003
• Expiry date: Aug 24, 2020

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C01B2210/0046
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

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.