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:
Feb. 17, 2009
Filed:
Jun. 23, 2005
Blaine Edward Herb, New Tripoli, PA (US);
Charles Franklin Watson, Orange, TX (US);
Edward Landis Weist, Jr., Macungie, PA (US);
Theodore Michael Sabram, Center Valley, PA (US);
Kuo-kuang Hsu, Macungie, PA (US);
Winfried Stephen Hoglen, Lehighton, PA (US);
Blaine Edward Herb, New Tripoli, PA (US);
Charles Franklin Watson, Orange, TX (US);
Edward Landis Weist, Jr., Macungie, PA (US);
Theodore Michael Sabram, Center Valley, PA (US);
Kuo-Kuang Hsu, Macungie, PA (US);
Winfried Stephen Hoglen, Lehighton, PA (US);
Air Products and Chemicals, Inc., Allentown, PA (US);
Abstract
Method of operating a pressure swing adsorption system having a plurality of parallel adsorber vessels and a plurality of valves and gas manifolds adapted to introduce gas into each adsorber vessel and withdraw gas from each adsorber vessel in a cyclic series of sequential process steps. A leaking valve may be identified by (1) determining a value of an operating parameter that is a function of the mass of gas provided to a receiving adsorber vessel or withdrawn from an adsorber vessel during a selected process step, portion of a process step, or series of process steps; (2) determining the deviation of the value of the operating parameter from a predetermined reference value; and (3) using the magnitude and direction of the deviation to determine whether any valves are leaking.