Patents by Inventor Erik Arnoldsson

Erik Arnoldsson 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).

  • Articulated waist terrain vehicle
    Patent number: 4506792
    Abstract: In waist articulated terrain vehicles, especially forest machines, with a wheeled forward section (1), a rear section (5), and a driver's cab (11), driver comfort can be substantially increased by the cab (11) being so mounted on the vehicle that it is substantially unaffected by the tilting movements of the forward section about an axis in the travelling direction thereof, simultaneously as it is adapted for accompanying the forward section in its steering movements.
    Type: Grant
    Filed: March 5, 1982
    Date of Patent: March 26, 1985
    Assignee: Kockums Industri AB
    Inventors: Bo P. S. Hedlund, Erik Arnoldsson
  • Device for collecting and processing tree stumps
    Patent number: 4254874
    Abstract: A mobile vehicle is provided with a rotatable, motor driven container which has at one end thereof a first opening for both receiving and discharging tree stumps therefrom. A second opening is formed in the container for discharging earth, sand, stones etc. that are entrained in the tree stumps. One or more helical cams longitudinally displace the stumps in the container during the rotation thereof.
    Type: Grant
    Filed: April 13, 1979
    Date of Patent: March 10, 1981
    Assignee: Kockums Industri AB
    Inventors: Erik Arnoldsson, Lars-Ake Bjorklund