Patents by Inventor Michael Steven Freberg

Michael Steven Freberg 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).

  • System and method for controlling hydraulic fluid flow
    Patent number: 7096772
    Abstract: A method of flowing hydraulic fluid in a work machine is disclosed. The method includes generating a control signal from an input mechanism and generating a property signal indicative of a viscosity of the hydraulic fluid. The control signal and the property signal are received at a control module. The method also includes determining a desired volume flow rate for the control signal and determining a valve control signal required to achieve the desired volume flow rate for the control signal. The valve control signal is based upon the property signal. The valve control signal is output to a proportional valve to provide the desired volume flow rate through the valve for the command signal.
    Type: Grant
    Filed: August 30, 2004
    Date of Patent: August 29, 2006
    Assignee: Caterpillar S.A.R.L.
    Inventors: Mark Andrew Sporer, Dante Toran Thomas, Michael Steven Freberg, Paul Anthony Dvorak