Patents by Inventor Stuart Galloway

Stuart Galloway 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).

  • Earthing arrangement
    Patent number: 7800880
    Abstract: In a DC electrical power system used in an aircraft, an earthing arrangement is provided between electrical power supply rails in the form of a pair of capacitors with a mid electrical voltage earthing point, having an earthing path, in which electrical resistance is provided to limit electrical current flow and therefore allow continued operation despite the earth fault.
    Type: Grant
    Filed: June 6, 2007
    Date of Patent: September 21, 2010
    Assignee: Rolls-Royce plc
    Inventors: Lihua Hu, David R Trainer, Michael P Hirst, Stuart Galloway
  • Earthing Arrangement
    Publication number: 20070287306
    Abstract: In DC electrical power systems used for example in aircraft typically an earthing arrangement is provided between electrical power supply rails in the form of a pair of capacitors with a mid electrical voltage earthing point. In such circumstances in previous arrangements an earth fault will have low impedance to the ground and therefore have excess electrical current flow. By aspects of the present invention electrical resistance is provided in the earthing path to limit electrical current flow and therefore allow continued operation despite the earth fault.
    Type: Application
    Filed: June 6, 2007
    Publication date: December 13, 2007
    Inventors: Lihua Hu, David R. Trainer, Michael P. Hirst, Stuart Galloway