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:
Sep. 08, 2009
Filed:
Feb. 23, 2006
Geoffrey Frank Deane, Goleta, CA (US);
Jeffrey Jenneve, Santa Barbara, CA (US);
Charles Morison, Goleta, CA (US);
Brenton Alan Taylor, Kenwood, CA (US);
Geoffrey Frank Deane, Goleta, CA (US);
Jeffrey Jenneve, Santa Barbara, CA (US);
Charles Morison, Goleta, CA (US);
Brenton Alan Taylor, Kenwood, CA (US);
Inogen, Inc., Goleta, CA (US);
Abstract
A gas fractionalization apparatus and methods for providing oxygen rich air to patients are disclosed. The apparatus comprises a variable output compressor, a PSA unit, a control system, and one or more pressure sensing devices. Pressure of the oxygen rich gas is maintained within a selected window by adjusting the output of the compressor in response to changes in the pressure of the oxygen rich gas. Methods of feedback control are further provided for calibration of the compressor under factory and in-service conditions, as well as under high-altitude conditions. Methods for providing diagnostic estimates and alarms of time to service are further provided.