Patents by Inventor Philippe Alain Rollet

Philippe Alain Rollet 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).

  • Patent number: 6868315
    Abstract: A flight control system for controlling the pitch of an aircraft having a vertical takeoff capability and an orientable lift direction may include a first device, to which a pitch command determined by a computing unit is applied, for actuating an element acting on the pitch of the aircraft. A second device of the flight control system receives an orientation order to actuate an element altering the orientation of the lift direction. Another device determines an orientation order for optimizing a flight parameter based on the pitch command determined by the computing unit. Yet another device subtracts from the pitch command the pitch contribution due to actuating the orientation element. The difference value acts as a pitch command to the first device.
    Type: Grant
    Filed: November 13, 2002
    Date of Patent: March 15, 2005
    Assignee: Eurocopter
    Inventors: Patrick Hellio, Philippe Alain Rollet
  • Publication number: 20030135307
    Abstract: Flight control system for controlling the pitch of an aircraft with vertical takeoff and with an orientable lift direction.
    Type: Application
    Filed: November 13, 2002
    Publication date: July 17, 2003
    Inventors: Patrick Hellio, Philippe Alain Rollet
  • Patent number: 6338454
    Abstract: The present invention relates to a flight control device for an aircraft comprising a control (2) and a means for actuating a controlled member (RP, RQ) to which a command is applied. According to the invention, said device (1) additionally includes a sensor (E) for determining a second value that is representative of the control executed by the aircraft (He) with respect to the control axis, and second means (M2) which determine: as long as the second value is lower than or equal to a reference value, a first trim command that is proportional to the actuation of the control (2); and when the second value is higher than the reference value, in addition to a second trim command, a speed command that is proportional to the additional actuation over and above said second value.
    Type: Grant
    Filed: May 17, 2000
    Date of Patent: January 15, 2002
    Assignee: Eurocopter
    Inventors: Philippe Alain Rollet, Serge Joseph Mezan