Patents by Inventor Tatu Halonen

Tatu Halonen 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).

  • Arrangement for controlling the web in a press section of a paper or board machine
    Patent number: 7294236
    Abstract: An arrangement is disclosed for controlling the web in a press section of a paper of board machine wherein the press section includes a press nip and two fabrics arranged to travel through it. In addition, the press section includes a suction roll with a suction apparatus fitted after the press nip. The suction apparatus includes at least one suction case, which is arranged in a closing throat and/or an opening throat formed by one of the fabrics and the suction roll. The suction case is also arranged before and/or after the suction roll in the edge of the fabric in order to create a suction effect in a narrow edge area of the web.
    Type: Grant
    Filed: June 8, 2004
    Date of Patent: November 13, 2007
    Assignee: Metso Paper, Inc.
    Inventors: Petteri Halme, Tatu Halonen, Jorma Laapotti, Riku Pihko
  • Arrangement for controlling the web in a press section of a paper or board machine
    Publication number: 20050000670
    Abstract: An arrangement is disclosed for controlling the web in a press section of a paper of board machine wherein the press section includes a press nip and two fabrics arranged to travel through it. In addition, the press section includes a suction roll with a suction apparatus fitted after the press nip. The suction apparatus includes at least one suction case, which is arranged in a closing throat and/or an opening throat formed by one of the fabrics and the suction roll. The suction case is also arranged before and/or after the suction roll in the edge of the fabric in order to create a suction effect in a narrow edge area of the web.
    Type: Application
    Filed: June 8, 2004
    Publication date: January 6, 2005
    Inventors: Petteri Halme, Tatu Halonen, Jorma Laapotti, Riku Pihko