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US 7,121,276 B2Granted
Personal oxygen concentrator
AssigneeVbox, Incorporated
InventorsTheodore W. Jagger, Nicholas P. Van Brunt, John A. Kivisto, Perry B. Lonnes
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Abstract
An oxygen separator for separating oxygen from ambient air utilizing a vacuum swing adsorption process has a mass of less than 2.3 kg. A carrier is mountable on a person to support the oxygen separator for ambulatory use.
Claims6
An oxygen concentrator comprising:
- a portable power pack;
- a vacuum swing adsorption (VSA) oxygen separator powered by the power source and having a plurality of nitrogen-selective adsorbent beds, each operating in VSA cycles including feed, evacuation and repressurization phases, the VSA cycles operating in a range between about 0.1 atm and about 1.0 atm;
- wherein the VSA oxygen separator comprises:
- an ambient air inlet;
- a vacuum pump;
- a product control pump;
- and
- a valve for selectively connecting the ambient air inlet, the vacuum pump and the product control pump to the adsorbent beds during different phases of the VSA cycles;
- a reservoir for storing oxygen-rich product gas produced by the VSA oxygen separator;
- and
- wherein the VSA oxygen separator is contained within a plurality of modules connected to a carrier mounted on a person.
8 more elements
Dependencies are inferred from the claim text.