Patents by Inventor Samuel R. Freesmeyer

Samuel R. Freesmeyer 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).

  • Power management system
    Patent number: 7340339
    Abstract: An exemplary power management system may include a power source configured to receive a fuel supply and a transmission driveably engaged with the power source. A control system communicates with the power source and the transmission and is configured to determine a fuel supply limit associated with a desired speed of the power source. The fuel supply limit may be determined from a fuel curve associated with the machine. The control system is operative to modify at least a portion of the fuel curve based on a load condition of the power source.
    Type: Grant
    Filed: February 13, 2004
    Date of Patent: March 4, 2008
    Assignee: Caterpillar Inc.
    Inventors: Mark D. Fabry, Thad T. Litkenhus, Samuel R. Freesmeyer, Peter A. Brown, Robert U. Murray