Patents by Inventor Markko Jaakkola

Markko 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, system and calendar for controlling the moisture profile and/or moisture gradient of a paper web, and a web
    Patent number: 7407562
    Abstract: The moisture profile and/or moisture gradient of a paper web of at least SC quality paper is controlled in a paper machine comprising a calender (1) which has at least two roll stacks (21, 22; 31, 32), one stack has at least three rolls and another has at least five rolls. The web is moisturized to a desired pre-moisture content M1 by a pre-moisturizer (7) before the calender. At least one intermediate moisturizer (3) is arranged between two roll stacks moisturizes the web to a desired intermediate moisture content M2 before the last roll stack (31, 32), in which the web is dried to a desired final moisture value M3. For continuously controlling and optimizing the moisture profile and/or moisture gradient of the web, the pre-moisturizing W1 of the web is controlled by a pre-moisturizer (7) control parameter which corresponds to the final moisture value M3 of the web.
    Type: Grant
    Filed: June 16, 2003
    Date of Patent: August 5, 2008
    Assignee: Metso Paper, Inc.
    Inventors: Antti Heikkinen, Harri Kuosa, Pekka Linnonmaa, Hannu Lätti, Markku Kyytsönen, Markko Jaakkola
  • Method, system and calender for controlling the moisture profile and/or moisture gradient of a paper web, and a web
    Publication number: 20060118259
    Abstract: The moisture profile and/or moisture gradient of a paper web of at least SC quality paper is controlled in a paper machine comprising a calender (1) which has at least two roll stacks (21, 22; 31, 32), one stack has at least three rolls and another has at least five rolls. The web is moisturized to a desired pre-moisture content M1 by a pre-moisturizer (7) before the calender. At least one intermediate moisturizer (3) is arranged between two roll stacks moisturizes the web to a desired intermediate moisture content M2 before the last roll stack (31, 32), in which the web is dried to a desired final moisture value M3. For continuously controlling and optimizing the moisture profile and/or moisture gradient of the web, the pre-moisturizing W1 of the web is controlled by a pre-moisturizer (7) control parameter which corresponds to the final moisture value M3 of the web.
    Type: Application
    Filed: June 16, 2003
    Publication date: June 8, 2006
    Inventors: Antti Heikkinen, Harri Kuosa, Pekka Linnonmaa, Hannu Latti, Markku Kyytsonen, Markko Jaakkola