Patents by Inventor Pekka Siitonen

Pekka Siitonen 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: 9511372
    Abstract: The disclosure relates to an elongated insert member for a grinding roll for heavy wear operation. The insert member includes a core of a first material having a first hardness, the core having an extension in the longitudinal direction of the insert member, and a body of a second material having a second hardness, the body enclosing the core. The first hardness is greater than the second hardness. The disclosure also relates to a cassette and a segment for a grinding roll, a grinding roll and a roll machine.
    Type: Grant
    Filed: May 6, 2016
    Date of Patent: December 6, 2016
    Assignee: Metso Sweden AB
    Inventors: Lars Gronvall, Pekka Siitonen, Mikko Kaipiainen, Jari Liimatainen
  • Publication number: 20160250645
    Abstract: The disclosure relates to an elongated insert member for a grinding roll for heavy wear operation. The insert member includes a core of a first material having a first hardness, the core having an extension in the longitudinal direction of the insert member, and a body of a second material having a second hardness, the body enclosing the core. The first hardness is greater than the second hardness. The disclosure also relates to a cassette and a segment for a grinding roll, a grinding roll and a roll machine.
    Type: Application
    Filed: May 6, 2016
    Publication date: September 1, 2016
    Applicant: Metso Minerals (Wear Protection) AB
    Inventors: Lars Gronvall, Pekka Siitonen, Mikko Kaipiainen, Jari Liimatainen
  • Patent number: 9352325
    Abstract: The invention relates to an elongated insert member for a grinding roll for heavy wear operation. The insert member includes a core of a first material having a first hardness, said core having an extension in the longitudinal direction of said insert member, and a body of a second material having a second hardness, said body enclosing said core. The first hardness is greater than the second hardness. The invention also relates to a cassette and a segment for a grinding roll, a grinding roll and a roll machine.
    Type: Grant
    Filed: December 18, 2009
    Date of Patent: May 31, 2016
    Assignee: Metso Minerals (Wear Protection) AB
    Inventors: Lars Gronvall, Pekka Siitonen, Mikko Kaipiainen, Jari Liimatainen
  • Publication number: 20120312907
    Abstract: The invention relates to an elongated insert member (1) for a grinding roll for heavy wear operation. The insert member (1) comprises a core (2) of a first material having a first hardness, said core (2) having an extension in the longitudinal direction of said insert member (1), and a body (3) of a second material having a second hardness, said body (3) enclosing said core (2). The first hardness is greater than the second hardness. The invention also relates to a cassette and a segment for a grinding roll, a grinding roll and a roll machine.
    Type: Application
    Filed: December 18, 2009
    Publication date: December 13, 2012
    Applicant: METSO MINERALS (WEAR PROTECTION) AB
    Inventors: Lars Gronvall, Pekka Siitonen, Mikko Kaipiainen, Jari Liimatainen
  • Patent number: 7887000
    Abstract: A lifting element for a drum of a grinding mill to be used for grinding of ores and minerals. The lifting element is attachable to a frame of the drum and extending in the longitudinal direction of the drum. The lifting element includes a flexible body and a wear protection element located in the leading edge of the body with respect to the direction of rotation of the drum. The wear protection element includes at least two different parts manufactured of different materials having toughness and hardness different from each other.
    Type: Grant
    Filed: October 20, 2006
    Date of Patent: February 15, 2011
    Assignee: Metso Minerals, Inc.
    Inventors: Pekka Siitonen, Jari Liimatainen, Tage Möller, Klas-Göran Eriksson, Sture Persson
  • Publication number: 20090242675
    Abstract: A lifting element for a drum of a grinding mill to be used for grinding of ores and minerals, said lifting element being attached to a frame of the drum and extending in the longitudinal direction of the drum, and said lifting element comprising a flexible body and a wear protection located in the leading edge of the body with respect to the direction of rotation of the drum. The wear protection consists of at least two different parts, said parts being manufactured of different materials having toughness and hardness different from each other.
    Type: Application
    Filed: October 20, 2006
    Publication date: October 1, 2009
    Applicant: METSO MINERALS, INC.
    Inventors: Pekka Siitonen, Jari Liimatainen, Tage Moller, Klas-Goran Eriksson, Sture Persson
  • Publication number: 20050172777
    Abstract: A blade (10) for use in the slitting of a paper or board web has a hub part (11) and a blade part (15). The blade part (15) is releasably secured by means of securing members (12, 13) to the hub part (12). The securing members (12, 13) are formed so as to distribute and/or maintain the axial load enabling the joint to withstand high circumferential speeds.
    Type: Application
    Filed: May 26, 2003
    Publication date: August 11, 2005
    Inventors: Harry Olander, Heikki Fohr, Jari Liimatainen, Pekka Siitonen, Mikko Kumpula
  • Patent number: 4081056
    Abstract: The present invention concerns a drive means for moving a target figure for use in sports shooting, comprising a frame, a pulley and a power wheel mounted on support of the frame, a power shaft connected with the power wheel, an endless pulling rope, which passes around the pulley and the power wheel and whereto the figure has been affixed, a weight rope and a moving weight, the latter being connected with the power shaft by the aid of the weight rope, said components being so arranged that the moving weight may be suspended to be borne by the weight rope wound around the power shaft, whereby the gravity effect acting on the moving weight tends to move the figure by mediation of the weight rope, the power shaft and the power wheel and of the pulling rope.
    Type: Grant
    Filed: July 26, 1976
    Date of Patent: March 28, 1978
    Inventor: Anssi Pekka Siitonen