Patents by Inventor Kjell-Owe Hjerth

Kjell-Owe Hjerth 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: 7810887
    Abstract: A method for preventing overturning a dump vehicle, the vehicle including a forward vehicle section with a forward frame and a wheel axle supported by the frame. The dump vehicle further includes a rear vehicle section with a rear frame and at least one wheel axle supported by the frame. The dump vehicle further includes an articulation joint, which connects the forward frame and the rear frame and allows the forward frame and the rear frame to pivot in relation to each other about an axis extending in a longitudinal direction of the vehicle. During a tilting procedure for unloading material from a container of the dump vehicle, the method includes determining if there is a risk for a pair of wheels of the wheel axle of the forward vehicle section to lose ground contact or if the pair of wheels have already lost ground contact.
    Type: Grant
    Filed: March 1, 2005
    Date of Patent: October 12, 2010
    Assignee: Volvo Construction Equipment Holding Sweden AB
    Inventors: Kjell-Owe Hjerth, Lennart Hjert
  • Publication number: 20100045092
    Abstract: A method for preventing overturning a dump vehicle, the vehicle including a forward vehicle section with a forward frame and a wheel axle supported by the frame. The dump vehicle further includes a rear vehicle section with a rear frame and at least one wheel axle supported by the frame. The dump vehicle further includes an articulation joint, which connects the forward frame and the rear frame and allows the forward frame and the rear frame to pivot in relation to each other about an axis extending in a longitudinal direction of the vehicle. During a tilting procedure for unloading material from a container of the dump vehicle, the method includes determining if there is a risk for a pair of wheels of the wheel axle of the forward vehicle section to lose ground contact or if the pair of wheels have already lost ground contact.
    Type: Application
    Filed: March 1, 2005
    Publication date: February 25, 2010
    Applicant: VOLVO CONSTRUCTION EQUIPMENT HOLDING SWEDEN AB
    Inventors: Kjell-Owe Hjerth, Lennart Hjert
  • Publication number: 20090065990
    Abstract: Method and arrangement for providing a spring element configured to transmit compression forces and tensile forces between a vehicle frame and a wheel axle that are movably arranged with respect to one another. The spring element includes a rubber body and a mechanical connection member that extends through the rubber body. The mechanical connection member is arranged to limit the distancing movement between the vehicle frame and the wheel axle and has a coupling device for coupling the connection member to at least one of the vehicle frame and the wheel axle. The coupling device also has a first stub with a threaded portion protruding from the spring element and the first stub includes fixing means for obtaining a rotationally fixed, form-fit on said at least one of the vehicle frame and the wheel axle.
    Type: Application
    Filed: November 14, 2008
    Publication date: March 12, 2009
    Applicant: VOLVO CONSTRUCTION EQUIPMENT AB
    Inventors: Kjell-Owe Hjerth, Hakan Stigsson
  • Publication number: 20040178549
    Abstract: Method and arrangement for providing a spring element configured to transmit compression forces and tensile forces between a vehicle frame and a wheel axle that are movably arranged with respect to one another. The spring element includes a rubber body and a mechanical connection member that extends through the rubber body. The mechanical connection member is arranged to limit the distancing movement between the vehicle frame and the wheel axle and has a coupling device for coupling the connection member to at least one of the vehicle frame and the wheel axle. The coupling device also has a first stub with a threaded portion protruding from the spring element and the first stub includes fixing means for obtaining a rotationally fixed, form-fit on said at least one of the vehicle frame and the wheel axle.
    Type: Application
    Filed: March 12, 2004
    Publication date: September 16, 2004
    Applicant: VOLVO ARTICULATED HAULERS AB
    Inventors: Kjell-Owe HJERTH, Hakan STIGSSON