Patents by Inventor Douglas Swansor

Douglas Swansor 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 controlling helicopter vibrations
    Patent number: 7370829
    Abstract: A method/system for controlling helicopter vibrations is provided that includes a vibration canceling force generator for actively generating a vibration canceling force. The system includes a resonant actuator having a natural resonant frequency and a resonant actuator electronic control system. The resonant actuator electronic control system provides an electrical drive current to the resonant actuator to drive the resonant actuator about the resonant frequency when commanded by a received command signal. The resonant actuator has a feedback output with the feedback output fed back into the resonant actuator electronic control system wherein the resonant actuator electronic control system adjusts the electrical drive current based on the resonant actuator feedback output to generate the vibration canceling force.
    Type: Grant
    Filed: June 10, 2005
    Date of Patent: May 13, 2008
    Assignee: Lord Corporation
    Inventors: Askari Badre-Alam, Douglas Swansor, Jeffrey Cranmer
  • Method and system for controlling helicopter vibrations
    Publication number: 20060054738
    Abstract: A method/system for controlling helicopter vibrations is provided that includes a vibration canceling force generator for actively generating a vibration canceling force. The system includes a resonant actuator having a natural resonant frequency and a resonant actuator electronic control system. The resonant actuator electronic control system provides an electrical drive current to the resonant actuator to drive the resonant actuator about the resonant frequency when commanded by a received command signal. The resonant actuator has a feedback output with the feedback output fed back into the resonant actuator electronic control system wherein the resonant actuator electronic control system adjusts the electrical drive current based on the resonant actuator feedback output to generate the vibration canceling force.
    Type: Application
    Filed: June 10, 2005
    Publication date: March 16, 2006
    Inventors: Askari Badre-Alam, Douglas Swansor, Jeffrey Cranmer