Patents by Inventor David C. Gabriel

David C. Gabriel 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).

  • Method and system for discharging a capacitive element
    Patent number: 7557543
    Abstract: An electric drive system having a power source which provides power to an electric motor through an electric motor control. Discharging of stored capacitor energy of a capacitor coupled between the power source and the electric motor controller is provided by controlling energy transfer from the capacitor to the electric motor.
    Type: Grant
    Filed: August 27, 2007
    Date of Patent: July 7, 2009
    Assignee: Ford Global Technologies, LLC
    Inventors: Raj Prakash, Venkateswa A. Sankaran, Michael W. Degner, David C. Gabriel
  • Method and system for discharging a capacitive element in an electrically operable vehicle
    Patent number: 7268521
    Abstract: An electric drive system having a power source which provides power to an electric motor through an electric motor control. Discharging of stored capacitor energy of a capacitor coupled between the power source and the electric motor controller is provided by controlling energy transfer from the capacitor to the electric motor.
    Type: Grant
    Filed: September 26, 2003
    Date of Patent: September 11, 2007
    Assignee: Ford Global Technologies, LLC
    Inventors: Raj Prakash, Venkateswa A. Sankaran, Michael W. Degner, David C. Gabriel