Patents by Inventor Michel Hallais

Michel Hallais 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).

  • Sealing system for an air intake opening of a ram jet combustion chamber
    Patent number: 6116019
    Abstract: The present invention relates to a shut-off system for an orifice for introducing combustion air into a ramjet with a consumable auxiliary motor (14).According to the invention, this shut-off system comprises:an elastic system (28, 29, 31, 32) connected to the shut-off flap (20A, 20B); anda retaining element (33) for keeping the said elastic system in the said tense state during the initial phase of rocket operation, the said retaining element being sensitive to the hot gases emitted by the said consumable auxiliary motor (14) so that on completion of combustion thereof, the said retaining element (33) releases the said elastic system which spontaneously changes from its tense state to its relaxed state, bringing the said flap from its shut-off position to its open position.
    Type: Grant
    Filed: June 10, 1998
    Date of Patent: September 12, 2000
    Assignee: Societe Nationale Industrielle et Aerospatiale
    Inventors: Michel Hallais, Vincent Protat