Patents by Inventor Faustine DELHAY

Faustine DELHAY 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 for reducing the angular momentum and controlling the attitude of a spacecraft
    Patent number: 9045241
    Abstract: A method for reducing the angular momentum of a spacecraft comprises a propulsion device able to generate a torque along a Z axis corresponding to an axis of maximum inertia or minimum inertia of the spacecraft, an X axis and a Y axis forming with Z an orthogonal frame; an angular momentum accumulating device, able to generate an angular momentum and a torque along the three axes; and a set of sensors able to measure the angular velocities and estimate the angular momentum of the spacecraft. The method comprises a first step of aligning the angular momentum of the spacecraft along the Z axis, consisting in slaving the angular momentum of the angular momentum accumulating device to the angular velocity of the spacecraft, and a second step of reducing the angular momentum of the spacecraft using a torque generated by the propulsion device.
    Type: Grant
    Filed: July 18, 2013
    Date of Patent: June 2, 2015
    Assignee: THALES
    Inventors: François Caullier, Faustine Delhay, Jean-Marc Lacambre, Etienne Brouillard
  • Method For Reducing the Angular Momentum and Controlling the Attitude of a Spacecraft
    Publication number: 20140032022
    Abstract: A method for reducing the angular momentum of a spacecraft comprises a propulsion device able to generate a torque along a Z axis corresponding to an axis of maximum inertia or minimum inertia of the spacecraft, an X axis and a Y axis forming with Z an orthogonal frame; an angular momentum accumulating device, able to generate an angular momentum and a torque along the three axes; and a set of sensors able to measure the angular velocities and estimate the angular momentum of the spacecraft. The method comprises a first step of aligning the angular momentum of the spacecraft along the Z axis, consisting in slaving the angular momentum of the angular momentum accumulating device to the angular velocity of the spacecraft, and a second step of reducing the angular momentum of the spacecraft using a torque generated by the propulsion device.
    Type: Application
    Filed: July 18, 2013
    Publication date: January 30, 2014
    Inventors: François CAULLIER, Faustine DELHAY, Jean-Marc LACAMBRE, Etienne BROUILLARD