Patents by Inventor Jan Lonn

Jan Lonn 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).

  • Hydraulic system for a vehicle, a vehicle including such a hydraulic system and a suplementary unit for such a vehicle
    Patent number: 7069722
    Abstract: A hydraulic system for a vehicle has a hydraulic, load carrying assembly which has a movable structural element and a hydraulic device for actuating the structural element. The hydraulic system has a primary circuit having a servo device, a stationary hydraulic pump, a directional valve, and the hydraulic device, which are arranged in order to operate the assembly. The hydraulic system has a supplementary circuit, being connected to the primary circuit and including a variable hydraulic pump which is arranged in order to supply an adjustable addition of hydraulic oil to the hydraulic device, and a proportional valve being arranged between the variable hydraulic pump and the hydraulic device in order to regulate the flow of hydraulic oil to the hydraulic device as a function of a received flow signal.
    Type: Grant
    Filed: February 7, 2003
    Date of Patent: July 4, 2006
    Assignee: Cargotec Patenter Handelsbolag
    Inventor: Jan Lönn
  • Hydraulic system for a vehicle, a vehicle including such a hydraulic system and a suplementary unit for such a vehicle
    Publication number: 20050160726
    Abstract: Hydraulic system for a vehicle, having a hydraulic, load-carrying assembly which has a movable structural element, and a hydraulic device (4) for actuating the structural element, said hydraulic system having a primary circuit having a servo device (1), a stationary hydraulic pump (2), a directional valve (3), and said hydraulic device, which are arranged in order to operate the assembly. According to the invention, the hydraulic system has a supplementary circuit, being connected to the primary circuit and including a variable hydraulic pump (6) which is arranged in order to supply an adjustable addition of hydraulic oil to the hydraulic device, and a proportional valve (7) being arranged between the variable hydraulic pump and the hydraulic device in order to regulate the flow of hydraulic oil to the hydraulic device as a function of a received flow signal.
    Type: Application
    Filed: February 7, 2003
    Publication date: July 28, 2005
    Inventor: Jan Lonn