Patents by Inventor Jean-Yves Cognard

Jean-Yves Cognard 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).

  • Motor/generator with energized reluctance and coil in the air gap
    Patent number: 6794791
    Abstract: The invention concerns a machine forming a motor or generator including a stator and a rotor. The rotor is a passive rotor, consisting of two ferromagnetic discs whereof at least one is toothed. The stator includes a fixed polyphase field coil arranged in an air gap defined by the space provided between the two discs and generating a rotating magnetic field, and a field coil likewise fixed. The invention is applicable to a cylindrical rotary machine or to a machine with linear displacement.
    Type: Grant
    Filed: October 18, 2002
    Date of Patent: September 21, 2004
    Assignee: Centre National de la Recherche Scientifique (C.N.R.S.)
    Inventors: Abdel Hamid Ben Ahmed, Bernard Multon, Jérome Delamare, Corentin Kerzreho, Jean-Yves Cognard, Nicolas Bernard
  • Motor/generator with energised reluctance and coil in the air gap
    Publication number: 20030057787
    Abstract: The invention concerns a machine forming a motor or generator comprising a stator and a rotor, characterised in that the rotor (6) is a passive rotor, consisting of two ferromagnetic discs whereof at least one is toothed, and the stator comprises a fixed polyphase (P1,P2,P3) field coil (13) arranged in an air gap defined by the space (12) provided between the two discs (8,9) and generating a rotating magnetic field, and a field coil (14) likewise fixed. The invention is likewise applicable to a cylindrical rotary machine or to a machine with linear displacement.
    Type: Application
    Filed: October 18, 2002
    Publication date: March 27, 2003
    Inventors: Abdel Hamid Ben Ahmed, Bernard Multon, Jerome Delamare, Corentin Kerzreho, Jean-Yves Cognard, Nicolas Bernard