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:
May. 25, 2010
Filed:
Feb. 21, 2008
Loren M. Thompson, Lapeer, MI (US);
Michael P Chekal, Brighton, MI (US);
Paul G Dedecker, Clinton Township, MI (US);
James E. Nelson, North Branch, MI (US);
Loren M. Thompson, Lapeer, MI (US);
Michael P Chekal, Brighton, MI (US);
Paul G Dedecker, Clinton Township, MI (US);
James E. Nelson, North Branch, MI (US);
Delphi Technologies, Inc., Troy, MI (US);
Abstract
A method of determining the purity of oxygen present in an oxygen-enriched gas produced from an oxygen delivery system is disclosed. The oxygen delivery system includes at least one sieve bed having a nitrogen-adsorbing material disposed therein and configured to adsorb nitrogen from a feed gas introduced into the at least two sieve beds via a pressure-swing adsorption cycle. The method includes determining a quantity of nitrogen adsorbed by the nitrogen-adsorbing material by inferring an effective volume of the at least one sieve bed based on a pressure change of the at least one sieve bed.