Patents by Inventor Jouni Pyötsiä{umlaut over ( )}

Jouni Pyötsiä{umlaut over ( )} has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Method and apparatus for condition monitoring of valve
    Patent number: 9037281
    Abstract: In the method and apparatus of the invention, the process point is taken into account when the condition and performance of a control valve are monitored. In the condition monitoring of the valve, process measurements are used in addition to measurements inside the valve in such a manner that the process measurements identify the operating point at which the valve operates, and the measurements inside the valve are observed at these operating points to detect changes and to determine the condition of the valve. According to an aspect of the invention, the variables representing the operating point of an industrial process are considered when changes in the friction load of the valve and/or the load factor of the actuator are observed.
    Type: Grant
    Filed: January 4, 2010
    Date of Patent: May 19, 2015
    Assignee: METSO FLOW CONTROL OY
    Inventors: Jouni Pyötsiä{umlaut over ( )}, Harri Cederlöf, Mats Friman