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:
Aug. 04, 2009
Filed:
Dec. 06, 2005
David John Farese, Riegelsville, PA (US);
Todd Eric Carlson, Allentown, PA (US);
Joseph Perry Cohen, Bethlehem, PA (US);
Amanda Elizabeth Witmer, Allentown, PA (US);
Keith H. Schultz, New Tripoli, PA (US);
David John Farese, Riegelsville, PA (US);
Todd Eric Carlson, Allentown, PA (US);
Joseph Perry Cohen, Bethlehem, PA (US);
Amanda Elizabeth Witmer, Allentown, PA (US);
Keith H. Schultz, New Tripoli, PA (US);
Air Products and Chemicals, Inc., Allentown, PA (US);
Abstract
A diagnostic method for a gas supply system includes: determining a desired ramp rate for filling a vessel from a supply of compressed gas; monitoring the actual pressure of gas entering the vessel; and discontinuing the flow of gas into the vessel when the actual pressure deviates from the intended pressure at the desired ramp rate by an undesired amount. A system for carrying out the method includes a flow controller for controlling operation of the supply system to deliver compressed gas from a source to a vessel through a supply line at a desired ramp rate. The system employs a pressure monitor downstream of a control valve for measuring the pressure of gas directed into the vessel and transmitting pressure-related data to the flow controller, which closes the control valve to discontinue filling of the vessel if the actual pressure exceeds a permissible deviation from the intended pressure.