Patents by Inventor Sami Nousiainen

Sami Nousiainen 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).

  • Control valve diagnostics
    Patent number: 9727433
    Abstract: In a diagnosis method of a control valve, position data representing a position of a control valve, and pressure data representing a pressure difference over a valve actuator, and optionally travel direction of the control valve, is measured during online operation of the control valve. The position data and the pressure difference data are processed to contain data around starting points of a plurality of individual travel movements of the control valve during normal online operation of the control valve. Finally, a valve signature graph of the control valve is determined based on the processed position and pressure difference data, collected at a plurality of points along the travel range of the control valve during online operation of the control valve.
    Type: Grant
    Filed: April 30, 2010
    Date of Patent: August 8, 2017
    Assignee: METSO AUTOMATION INC.
    Inventor: Sami Nousiainen
  • CONTROL VALVE DIAGNOSTICS
    Publication number: 20130110418
    Abstract: In a diagnosis method of a control valve, position data representing a position of a control valve, and pressure data representing a pressure difference over a valve actuator, and optionally travel direction of the control valve, is measured during online operation of the control valve. The position data and the pressure difference data are processed to contain data around starting points of a plurality of individual travel movements of the control valve during normal online operation of the control valve. Finally, a valve signature graph of the control valve is determined based on the processed position and pressure difference data, collected at a plurality of points along the travel range of the control valve during online operation of the control valve.
    Type: Application
    Filed: April 30, 2010
    Publication date: May 2, 2013
    Applicant: METSO AUTOMATION OY
    Inventor: Sami Nousiainen