Patents by Inventor Michel Henri Julliand

Michel Henri Julliand 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).

  • Device for the attenuation of noise emission by the jet pipes of jet engines
    Patent number: 3976160
    Abstract: A device for the attenuation of the noise emitted by a jet pipe of a jet ine and especially a composite jet pipe of an aircraft jet engine, by pinching of the jet with the aid of opposite panels causing spreading of the jet in one plane, so that a silencer effect is manifested in this plane, these panels being in a retracted position at rest, wherein the pinching of the jet is adapted to be effected in at least one lateral part of the jet with the aid of at least one pair of mutually facing panel elements situated on either side of the plane of spread of the jet.
    Type: Grant
    Filed: August 30, 1974
    Date of Patent: August 24, 1976
    Assignee: Societe Nationale d'Etude et de Construction de Moteurs d'Aviation
    Inventors: Rene Gerard Hoch, Michel Henri Julliand
  • Notch attenuation device
    Patent number: 3968853
    Abstract: A method for the attenuation of the noise emitted by a main exhaust nozzle f a jet engine, wherein an auxiliary exhaust nozzle adapted to emit less noise than the main nozzle is associated with said main nozzle and is located to the side of the main nozzle, in the direction in which it is desired to attenuate the noise of the main nozzle.
    Type: Grant
    Filed: August 30, 1974
    Date of Patent: July 13, 1976
    Assignee: Societe Nationale d'Etude et de Construction de Moteurs d'Aviation
    Inventors: Rene Gerard Hoch, Michel Henri Julliand