Patents by Inventor Ilpo Pitkaniemi

Ilpo Pitkaniemi 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).

  • Patent number: 8438754
    Abstract: The object of the invention is an apparatus and a method for improving the detachment of paper (1) from the cylinder of a paper machine in a drying section implemented with a single wire transfer, which drying section comprises means for heating the paper on the drying cylinder (3) and for transporting it onwards on the wire (2) via a hitch roll (8) to the next drying cylinder such that the paper together with the wire in the section between the cylinders is sucked against the wire by means of low pressure. What is essential to the invention is that in order to improve the detachment of the paper (1) an apparatus is installed on the opposite side of the drying wire (2) at the detachment point (7), which apparatus comprises a nozzle (14), with which an air jet (11) is blown against the direction of travel (15) of the drying wire, and a carrying surface (9) such that the air jet (11) ejects secondary air (17) along with it causing an air flow (18) between the planar carrying surface (9) and the drying wire (2).
    Type: Grant
    Filed: August 25, 2009
    Date of Patent: May 14, 2013
    Assignee: EV Group OY
    Inventors: Ilpo Pitkäniemi, Timo Haverinen
  • Publication number: 20110154685
    Abstract: The object of the invention is an apparatus and a method for improving the detachment of paper (1) from the cylinder of a paper machine in a drying section implemented with a single wire transfer, which drying section comprises means for heating the paper on the drying cylinder (3) and for transporting it onwards on the wire (2) via a hitch roll (8) to the next drying cylinder such that the paper together with the wire in the section between the cylinders is sucked against the wire by means of low pressure. What is essential to the invention is that in order to improve the detachment of the paper (1) an apparatus is installed on the opposite side of the drying wire (2) at the detachment point (7), which apparatus comprises a nozzle (14), with which an air jet (11) is blown against the direction of travel (15) of the drying wire, and a carrying surface (9) such that the air jet (11) ejects secondary air (17) along with it causing an air flow (18) between the planar carrying surface (9) and the drying wire (2).
    Type: Application
    Filed: August 25, 2009
    Publication date: June 30, 2011
    Applicant: EV GROUP OY
    Inventors: Ilpo Pitkäniemi, Timo Haverinen
  • Patent number: 7141141
    Abstract: The invention relates to an apparatus for the on-line determination of paper web moisture content and/or temperature on the dryer section of a papermaking machine. The apparatus is designed to form, in combination with a doctor means and/or a packet ventilating tube, such a compact structure wherein the apparatus operates underneath such means or in a close proximity thereto. The invention also relates to a method for control of paper web moisture content and temperature on the basis of measurements performed on the dryer section of a papermaking machine.
    Type: Grant
    Filed: November 2, 2000
    Date of Patent: November 28, 2006
    Assignee: EV Group Oy
    Inventors: Pekka Koskinen, Esa Virtanen, Ilpo Pitkaniemi, Jari Ristola