Patents by Inventor Hans Ericson

Hans Ericson 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: 8347998
    Abstract: A working machine including an internal combustion engine for supplying torque to the driving wheels of the working machine, and a transmission line arranged between the internal combustion engine and the driving wheels for transmitting torque from the internal combustion engine to the driving wheels. The working machine further including at least one hydraulic pump in a hydraulic system for moving an implement arranged on the working machine and/or steering the working machine. The transmission line includes at least one electric machine for driving or braking the driving wheels, and/or for generating electric power for the at least one hydraulic pump.
    Type: Grant
    Filed: October 14, 2005
    Date of Patent: January 8, 2013
    Assignee: Volvo Construction Equipment AB
    Inventors: Hans Ericson, Joakim Unnebäck, Sven-Åke Carlsson, Reno Filla
  • Publication number: 20080264051
    Abstract: A working machine including an internal combustion engine for supplying torque to the driving wheels of the working machine, and a transmission line arranged between the internal combustion engine and the driving wheels for transmitting torque from the internal combustion engine to the driving wheels. The working machine further including at least one hydraulic pump in a hydraulic system for moving an implement arranged on the working machine and/or steering the working machine. The transmission line includes at least one electric machine for driving or braking the driving wheels, and/or for generating electric power for the at least one hydraulic pump.
    Type: Application
    Filed: October 14, 2005
    Publication date: October 30, 2008
    Applicant: VOLVO CONSTRUCTION EQUIPMENT AB
    Inventors: Hans Ericson, Joakim Unneback, Sven-Ake Carlsson, Reno Filla
  • Publication number: 20080223631
    Abstract: A working machine adapted for at least two functions, which include moving an implement and/or steering the machine, the machine includes: at least two hydraulic circuits, one hydraulic circuit for each of said functions, wherein each hydraulic circuit includes at least one hydraulic pump for operating the associated implement or steering function, a separate first electric machine drivingly connected to each of said hydraulic pumps for an individual supply of energy to the pump and extraction of energy from the pump, a transmission line for moving the working machine via driving wheels, wherein the transmission line includes at least one second electric machine, which is operatively connected to said first electric machines for an exchange of power between the hydraulic circuits and the transmission line.
    Type: Application
    Filed: October 13, 2006
    Publication date: September 18, 2008
    Applicant: VOLVO CONSTRUCTION EQUIPMENT AB
    Inventors: Reno Filla, Joakim Unneback, Sven-Ake Carlsson, Hans Ericson
  • Patent number: 5156520
    Abstract: A linkage system for loading machines is mounted on two lift-arms (14) supporting a pallet-lifting fork or a bucket (22) at the ends of the lift-arms. The linkage system is so designed that when using a bucket (22) or pallet-lifting fork the linkage system will ensure that the bucket or lifting fork will take a substantially desired angular position as it is raised and lowered, without needing to make adjustments to the tilt-cylinder as the bucket or lifting fork is raised.
    Type: Grant
    Filed: April 26, 1991
    Date of Patent: October 20, 1992
    Assignee: VME Industries Sweden AB
    Inventors: Hans Ericson, Mats Andersson, Tord Dahlen