Oxygen concentration system and method

Patent 7771511 Issued on August 10, 2010. Estimated Expiration Date:

December 8, 2026. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Abstract Claims Description Full Text

Patent References

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Inventor

Dolensky, Joseph T.

Assignee

RIC Investments, LLC

Application

No. 11636233 filed on 12/08/2006

US Classes:

95/96Plural pressure varying steps (e.g., pressure swing adsorption, etc.)

Examiners

Primary: Hopkins, Robert A

Attorney, Agent or Firm

Haas; Michael W.

Foreign Patent References

05277322 JP 10/01/1993

International Class

B01D 53/02

Abstract

The present system is an adsorption system for separating air into a concentrated gas component, which has an air supply, a compressor for receiving and compressing the air supply, providing a compressed air supply, and molecular sieve material for separating the compressed air supply into a concentrated gas component. The adsorption system delivers at least 5 liters per minute (LPM) of concentrated gas component from the molecular sieve material in which the system has a specific total weight per LPM <9 lbs/LPM. Additionally, an output quantity of the concentrated gas is delivered by the adsorption system and a purging quantity of the concentrated gas is dispensed into a sieve chamber of the adsorption system undergoing a purge cycle. The purging quantity has a value equal to or less than the difference between the maximum quantity and the output quantity, and the purging quantity is controlled based on the output quantity.