Patents by Inventor Tero Jussila

Tero Jussila 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 for controlling screening by measuring flow amount consistency of the pulp
    Patent number: 7077930
    Abstract: The invention relates to a method of controlling quality of pulp. Pulp formed in mechanical defibering of wood is screened into at least two fractions, the accept that has passed the screening phase being forwarded for further use and the reject that did not pass the screening being removed from the screening phase. The invention comprises determining flow amount and consistency of the pulp supplied to the screening phase and, correspondingly, of the reject removed therefrom, and calculating a passage ratio of the reject and the supplied pulp by means of the flow amounts and consistency values verified through the measurement, and adjusting the screening phase according to said passage ratio.
    Type: Grant
    Filed: August 15, 2003
    Date of Patent: July 18, 2006
    Assignee: Metso Paper Inc.
    Inventors: Ari Ämmälä, Jouko Niinimäki, Tero Jussila
  • Method for controlling quality of pulp
    Patent number: 6846381
    Abstract: A method for controlling the quality of pulp. Pulp produced by mechanical defibering of wood is screened to provide at least two fractions, of which the accept that has passed the screening phase is carried forward for use and the reject that has not passed the screening is removed from the screening phase. The consistency of the reject that is to be removed from the screening is measured and the consistency value thus obtained is used for controlling the defibrator to adjust the quality of the accept.
    Type: Grant
    Filed: August 8, 2002
    Date of Patent: January 25, 2005
    Assignee: Metso Paper, Inc.
    Inventors: Tero Jussila, Jouko Niinimäki
  • Method for controlling screening by measuring flow amount consistency of the pulp
    Publication number: 20040031577
    Abstract: The invention relates to a method of controlling quality of pulp. Pulp formed in mechanical defibering of wood is screened into at least two fractions, the accept that has passed the screening phase being forwarded for further use and the reject that did not pass the screening being removed from the screening phase. The invention comprises determining flow amount and consistency of the pulp supplied to the screening phase and, correspondingly, of the reject removed therefrom, and calculating a passage ratio of the reject and the supplied pulp by means of the flow amounts and consistency values verified through the measurement, and adjusting the screening phase according to said passage ratio.
    Type: Application
    Filed: August 15, 2003
    Publication date: February 19, 2004
    Applicant: Metso Paper Inc.
    Inventors: Ari Ammala, Jouko Niinimaki, Tero Jussila
  • Method for controlling quality of pulp
    Publication number: 20030041984
    Abstract: A method for controlling the quality of pulp. Pulp produced by mechanical defibering of wood is screened to provide at least two fractions, of which the accept that has passed the screening phase is carried forward for use and the reject that has not passed the screening is removed from the screening phase. The consistency of the reject that is to be removed from the screening is measured and the consistency value thus obtained is used for controlling the defibrator to adjust the quality of the accept.
    Type: Application
    Filed: August 8, 2002
    Publication date: March 6, 2003
    Applicant: Metso Paper Inc.
    Inventors: Tero Jussila, Jouko Niinimaki