Patents by Inventor Jyrki Tapio Jaakkola

Jyrki Tapio Jaakkola 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 controlling a fiber fractionation system
    Patent number: 11834786
    Abstract: A method for controlling a fiber fractionation system for fractionating an input material into a long fraction (LF) stream comprising LF fibers and a short fraction (SF) stream comprising SF fibers includes measuring an average LF fiber length at one or more locations post-fractionation, and maintaining the average LF fiber length within a target variability range by automatically altering a rotational speed of a rotor of the fiber fractionation system.
    Type: Grant
    Filed: December 14, 2020
    Date of Patent: December 5, 2023
    Assignee: INTERNATIONAL PAPER COMPANY
    Inventors: Jyrki Tapio Jaakkola, Antti Heikkinen
  • METHOD AND APPARATUS FOR CONTROLLING A FIBER FRACTIONATION SYSTEM
    Publication number: 20210095422
    Abstract: A method for controlling a fiber fractionation system for fractionating an input material into a long fraction (LF) stream comprising LF fibers and a short fraction (SF) stream comprising SF fibers includes measuring an average LF fiber length at one or more locations post-fractionation, and maintaining the average LF fiber length within a target variability range by automatically altering a rotational speed of a rotor of the fiber fractionation system.
    Type: Application
    Filed: December 14, 2020
    Publication date: April 1, 2021
    Inventors: Jyrki Tapio Jaakkola, Antti Heikkinen
  • Method and apparatus for controlling a fiber fractionation system
    Patent number: 10865520
    Abstract: A method for controlling a fiber fractionation system for fractionating an input material into a long fraction (LF) stream comprising LF fibers and a short fraction (SF) stream comprising SF fibers includes measuring an average LF fiber length at one or more locations post-fractionation, and maintaining the average LF fiber length within a target variability range by automatically altering a rotational speed of a rotor of the fiber fractionation system.
    Type: Grant
    Filed: September 18, 2018
    Date of Patent: December 15, 2020
    Assignee: INTERNATIONAL PAPER COMPANY
    Inventors: Jyrki Tapio Jaakkola, Antti Heikkinen
  • METHOD AND APPARATUS FOR CONTROLLING A FIBER FRACTIONATION SYSTEM
    Publication number: 20190085509
    Abstract: A method for controlling a fiber fractionation system for fractionating an input material into a long fraction (LF) stream comprising LF fibers and a short fraction (SF) stream comprising SF fibers includes measuring an average LF fiber length at one or more locations post-fractionation, and maintaining the average LF fiber length within a target variability range by automatically altering a rotational speed of a rotor of the fiber fractionation system.
    Type: Application
    Filed: September 18, 2018
    Publication date: March 21, 2019
    Inventors: Jyrki Tapio Jaakkola, Antti Heikkinen