Patents by Inventor Markku Kemppainen

Markku Kemppainen 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).

  • Bogie construction of a railway car
    Patent number: 5123358
    Abstract: A bogie for a railway vehicle comprising of at least two articulated, pivotable and rotatable wheel body parts (2, 3) including wheels or a set of wheels (4, 5) mounted in bearings and the supporting body (6) of the bogie being connected to the parts by a suspension (9a, 9b) of the railway vehicle. In the bogie, two wheel body parts (2, 3) have been resiliently interconnected from their side constructions by two stabilizer constructions (16) both of which have been articulated to the supporting body (6).
    Type: Grant
    Filed: May 22, 1990
    Date of Patent: June 23, 1992
    Assignee: Rautaruukki Oy
    Inventors: Markku Kemppainen, Ossi Kahra, Aki Kauhanen