Patents by Inventor Gilbert Drey

Gilbert Drey 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).

  • Patent number: 5003686
    Abstract: A method is disclosed for manufacturing a synchronous electric motor which includes at least one flat annular rotor part which is magnetized so as to present at least one series of magnetic poles arranged along a flat annular zone of the rotor part. The rotor part is fixed by at least one rotor-supporting part on a shaft of the motor. The motor shaft is mounted for rotation with respect to at least one stator assembly which includes at least two stator parts. The stator parts include pole parts arranged so as to form, in their assembly, an air-gap in which are disposed the magnetic poles of the rotor part. At least one electric control coil is coupled with one or more pole parts.
    Type: Grant
    Filed: July 3, 1989
    Date of Patent: April 2, 1991
    Assignee: Portescap
    Inventors: Claude Oudet, Gilbert Drey, Norbert Veignat
  • Patent number: 4866323
    Abstract: A synchronous electric motor includes least one flat annular rotor part, magnetized so as to present at least one series of magnetic poles arranged along a flat annular zone of the rotor part. The rotor part is fixed by at least one rotor-supporting part on a shaft of the motor. The motor shaft is mounted for rotation with respect to at least one stator assembly which includes at least two stator parts. The stator parts include pole parts arranged so as to form, in their assembly, an air-gap in which are disposed the magnetic poles of the rotor part. At least one electric control coil being coupled with one or more of the pole parts.
    Type: Grant
    Filed: August 6, 1987
    Date of Patent: September 12, 1989
    Assignee: Portescap
    Inventors: Claude Oudet, Gilbert Drey, Norbert Veignat