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.

Date of Patent:
Jul. 02, 2019

Filed:

Nov. 30, 2015
Applicant:

General Electric Company, Schenectady, NY (US);

Inventors:

Frederick Wilson Wheeler, Niskayuna, NY (US);

Justin Scott Shriver, Newton, MA (US);

Larry Gene Schoonover, Falmouth, MA (US);

Brett Alexander Matthews, Albany, NY (US);

Assignee:

General Electric Company, Schenectady, NY (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16K 37/00 (2006.01); G05B 23/02 (2006.01);
U.S. Cl.
CPC ...
F16K 37/0041 (2013.01); F16K 37/0083 (2013.01); G05B 23/0205 (2013.01); G05B 23/0235 (2013.01); G05B 2219/33326 (2013.01);
Abstract

A system receives a plurality of data samples associated with a control valve with each of the plurality of data samples associated with a setpoint and a position. A first subset of the data samples that are in a control zone associated with normal operation of the control valve is determined. In a case that a second subset of the data samples are determined to be (i) not in the first subset and (ii) close to a minimum position of the plurality of data samples and (iii) have setpoints less than their associated positions, an alert associated with a low obstruction is indicated. In a case that a second subset of the data samples are determined to be (i) not in the first subset and (ii) close to the maximum position of the plurality of data samples and (iii) have setpoint greater than their associated position, an alert is indicated.


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