Patents by Inventor Michel Gey

Michel Gey 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 protecting metal objects situated in the environment of an intense magnetic field developed by an alternator rotor without a stator
    Patent number: 4489218
    Abstract: The protection device comprises two half cages (13, 14) superposed on each other and surrounding the rotor (8) under test. The half cages together constitute a cage with openings between its bars and provided with water cooling in said bars. The cage ensures that the magnetic field generated by a rotor under test with excitation current is stopped within a distance equivalent to the size of the holes between the cage bars. Induced current heating in the cage is kept under control by water cooling, and metal objects outside the cage are substantially protected from the magnetic field by the cage. Air can pass freely through the cage, and the rotor can be observed without removing the cage.
    Type: Grant
    Filed: August 12, 1982
    Date of Patent: December 18, 1984
    Assignee: Alsthom-Atlantique
    Inventors: Jean Delassus, Michel Gey, Jean-Claude Comensoli, Paul Pouger