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:
Jul. 25, 2017
Filed:
Aug. 26, 2014
Applicant:
Spraying Systems Co., Wheaton, IL (US);
Inventors:
Rudolf J. Schick, Forest Park, IL (US);
Fadi Alameddine, Dubai, AE;
Assignee:
Spraying Systems Co., Wheaton, IL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G05D 7/06 (2006.01); G05D 23/19 (2006.01); G01F 1/36 (2006.01); G01F 15/00 (2006.01);
U.S. Cl.
CPC ...
G05D 7/0635 (2013.01); G05D 23/1919 (2013.01); G01F 1/36 (2013.01); G01F 15/005 (2013.01);
Abstract
The disclosure describes a method for operating a flow-control valve that includes comparing a desired flow with an actual flow through the valve and re-calibrating a valve iso-curve at periodic intervals when the actual flow falls outside of a predetermined threshold relative to the desired flow. When operating in a nested control loop based on a control parameter, a flow setpoint is selected based on the control parameter and maintained independently of pressure across the flow-control valve.