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:
Jun. 07, 2011
Filed:
Feb. 09, 2005
Theodore W. Jagger, White Bear Lake, MN (US);
Nicholas P. Van Brunt, White Bear Lake, MN (US);
John A. Kivisto, Oak Grove, MN (US);
Perry B. Lonnes, White Bear Lake, MN (US);
Theodore W. Jagger, White Bear Lake, MN (US);
Nicholas P. Van Brunt, White Bear Lake, MN (US);
John A. Kivisto, Oak Grove, MN (US);
Perry B. Lonnes, White Bear Lake, MN (US);
Vbox, Incorporated, White Bear Lake Lake, MN (US);
Abstract
Concentrated oxygen product gas is produced and delivered to a patient. Product gas is produced by (a) introducing ambient air into a first end of a column containing an adsorbent material that preferentially adsorbs nitrogen and removes oxygen-rich product gas out a second end of the column; (b) evacuating the column through the first end to remove adsorbed gas from the column; (c) repressurizing the column by introducing ambient air into the first end of the column until the column is near 1.0 atmosphere; and (d) repeating steps (a)-(c). Product gas is delivered as needed to the patient.