Patents by Inventor Petri Joutjärvi

Petri Joutjärvi 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).

  • Apparatus for spreading treating mix on a moving paper—or cardboard web
    Patent number: 6630026
    Abstract: An apparatus for applying a treating mix onto the surface of a moving device in the coating of paper or board. The apparatus comprises a blade carrier (3), doctor means (4) attached to the blade carrier (3), a front wall (9) positioned a distance from the doctor means (4), a device (1) constituting the moving device, said device being arranged in conjunction with the front wall (9) and the doctor means such that it forms a chamber (6, 7) with the front wall (9) and the doctor means, and means (8) for supplying treating agent into an area of the application chamber (6, 7) which is at least essentially opposite to the moving surface. To prevent streaks, a screen plate (10) is fitted in the application chamber, at least partly dividing the application chamber (6, 7) such that with regard to the screen plate (10), the doctor means (4) is arranged on the opposite side thereof to the feed means for the treating agent.
    Type: Grant
    Filed: November 19, 2001
    Date of Patent: October 7, 2003
    Assignee: Metso Paper, Inc.
    Inventors: Timo Kiiha, Petri Parni, Petri Joutjärvi