Patents by Inventor William LAGREVOL

William LAGREVOL 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).

  • Haptic alert mechanism for alerting an aircraft pilot, and an aircraft
    Patent number: 10940957
    Abstract: A haptic alert mechanism. The mechanism includes an actuator. At least one arm of a movable stopping piece is connected to the actuator. A spring box is provided with an enclosure containing a pre-stressed torsion spring, said spring box being mounted to be movable in rotation about the axis of rotation. The enclosure includes at least one lug that is mounted to be movable in rotation about said axis of rotation. A finger of the torsion spring passes through an elongate orifice in a front flank of the enclosure to form a movable, resilient stop that is overridable.
    Type: Grant
    Filed: February 27, 2020
    Date of Patent: March 9, 2021
    Assignees: AIRBUS HELICOPTERS, AIRBUS HELICOPTERS DEUTSCHLAND GMBH
    Inventors: Boris Grohmann, Christophe Tempier, William Lagrevol, Marc Salesse-Lavergne
  • HAPTIC ALERT MECHANISM FOR ALERTING AN AIRCRAFT PILOT, AND AN AIRCRAFT
    Publication number: 20200277082
    Abstract: A haptic alert mechanism. The mechanism includes an actuator. At least one arm of a movable stopping piece is connected to the actuator. A spring box is provided with an enclosure containing a pre-stressed torsion spring, said spring box being mounted to be movable in rotation about the axis of rotation. The enclosure includes at least one lug that is mounted to be movable in rotation about said axis of rotation. A finger of the torsion spring passes through an elongate orifice in a front flank of the enclosure to form a movable, resilient stop that is overridable.
    Type: Application
    Filed: February 27, 2020
    Publication date: September 3, 2020
    Applicants: AIRBUS HELICOPTERS, AIRBUS HELICOPTERS DEUTSCHLAND GMBH
    Inventors: Boris GROHMANN, Christophe TEMPIER, William LAGREVOL, Marc SALESSE-LAVERGNE