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:
Nov. 11, 2025

Filed:

Aug. 12, 2022
Applicant:

Focus-on V.o.f., Dordrecht, NL;

Inventors:

Cornelis Johannes Hogendoorn, Spijk, NL;

Stefan Van Caspel, Rotterdam, NL;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G05D 7/06 (2006.01); G05B 19/416 (2006.01);
U.S. Cl.
CPC ...
G05D 7/0623 (2013.01); G05B 19/416 (2013.01); G05D 7/0635 (2013.01); G05B 2219/37371 (2013.01);
Abstract

A computer-implemented method for operating a shut-off device for a fluid includes: using a mathematical model to calculate a current static fluid pressure at a location of interest within a shut-off device as a function of at least one measured state variable of the fluid; determining a vapor pressure of the fluid; comparing a current static fluid pressure with a cavitation limit value which is dependent on a vapor pressure of the fluid; and in the event of the calculated current static fluid pressure falling below the cavitation limit value dependent on the vapor pressure of the fluid, signaling the presence or expected presence of cavitation at the location of interest of the shut-off device. A related shut-off device is also disclosed.


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