Patents by Inventor Kari Laitinen

Kari Laitinen 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 in a mechanical shaft seal
    Patent number: 7694977
    Abstract: The invention relates to an arrangement in a mechanical shaft seal. The arrangement comprises at least one sealing part rotating with a shaft in relation to a frame of the device and at least one sealing part fastened to the frame and/or to a separate frame part that is non-rotatable in relation thereto. The arrangement also comprises at least one additional part arranged to connect the frame and the sealing part that is non-rotatable in relation thereto and to prevent the rotation of the sealing part in relation to the frame. At least one set of the additional parts is memory metal elements.
    Type: Grant
    Filed: February 8, 2005
    Date of Patent: April 13, 2010
    Assignee: John Crane Safematic Oy
    Inventor: Kari Laitinen
  • Arrangement in a mechanical shaft seal
    Publication number: 20070170655
    Abstract: The invention relates to an arrangement in a mechanical shaft seal. The arrangement comprises at least one sealing part rotating with a shaft in relation to a frame of the device and at least one sealing part fastened to the frame and/or to a separate frame part that is non-rotatable in relation thereto. The arrangement also comprises at least one additional part arranged to connect the frame and the sealing part that is non-rotatable in relation thereto and to prevent the rotation of the sealing part in relation to the frame. At least one set of the additional parts is memory metal elements.
    Type: Application
    Filed: February 8, 2005
    Publication date: July 26, 2007
    Applicant: John Crane Safematic Oy
    Inventor: Kari Laitinen