Patents by Inventor Arto Tuomi

Arto Tuomi 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 in the surface sizing of a paper or board web
    Patent number: 7540941
    Abstract: An applicator device (1) applies surface size to at least one side of a web (W). A pressure effect is applied to the web (W) by subjecting the web (W) to an underpressure and/or to an overpressure such that surface size is forced to penetrate into the pores of the web. Most advantageously, an underpressure is created that sucks applied surface size from the surface of the web (W) into the pores in the inner layers. Surface size is applied to a web first side (W1) and a vacuum effect is applied to the web's opposite side (W2) to cause air to flow through the web (W) such that surface size moves from the first side (W1) in the direction of the second side (W2) into the web (W). Correspondingly, both sides of the web (W) can be treated in successive stages.
    Type: Grant
    Filed: June 7, 2004
    Date of Patent: June 2, 2009
    Assignee: Metso Paper, Inc.
    Inventors: Juha Lipponen, Pekka Pakarinen, Juha Pakarinen, Kari Holopainen, Juhani Vestola, Arto Tuomi
  • Method and apparatus in the surface sizing of a paper or board web
    Publication number: 20060124263
    Abstract: An applicator device (1) applies surface size to at least one side of a web (W). A pressure effect is applied to the web (W) by subjecting the web (W) to an underpressure and/or to an overpressure such that surface size is forced to penetrate into the pores of the web. Most advantageously, an underpressure is created that sucks applied surface size from the surface of the web (W) into the pores in the inner layers. Surface size is applied to a web first side (W1) and a vacuum effect is applied to the web's opposite side (W2) to cause air to flow through the web (W) such that surface size moves from the first side (W1) in the direction of the second side (W2) into the web (W). Correspondingly, both sides of the web (W) can be treated in successive stages.
    Type: Application
    Filed: June 7, 2004
    Publication date: June 15, 2006
    Inventors: Juhu Lipponen, Pekka Pakarinen, Juhani Vestola, Arto Tuomi