Patents by Inventor Olli Niemi

Olli Niemi 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 coating head, and a coating head
    Patent number: 9393593
    Abstract: A method and apparatus are described for controlling a coating head, which exerts a nip pressure to a fibrous web to be coated while the fibrous web is supported by a backing roll. An output signal of a sensor integrated within the backing roll is read, thus producing a measured indication of the nip pressure. A number of actuator control values are derived at least partly from said measured indication of the nip pressure. Said actuator control values are delivered as commands to a number of respective actuators that contribute to creating the nip pressure, to control an amount of a coating substance on the fibrous web in the coating head.
    Type: Grant
    Filed: May 25, 2010
    Date of Patent: July 19, 2016
    Assignee: Valmet Technologies, Inc.
    Inventors: Olli Niemi, Tatu Pitkänen
  • Method and Apparatus for Controlling a Coating Head, and a Coating Head
    Publication number: 20130064968
    Abstract: A method and apparatus are described for controlling a coating head, which exerts a nip pressure to a fibrous web to be coated while the fibrous web is supported by a backing roll. An output signal of a sensor integrated within the backing roll is read, thus producing a measured indication of the nip pressure. A number of actuator control values are derived at least partly from said measured indication of the nip pressure. Said actuator control values are delivered as commands to a number of respective actuators that contribute to creating the nip pressure, to control an amount of a coating substance on the fibrous web in the coating head.
    Type: Application
    Filed: May 25, 2010
    Publication date: March 14, 2013
    Applicant: METSO PAPER, INC.
    Inventors: Olli Niemi, Tatu Pitkänen