Patents by Inventor Lionel Boyer

Lionel Boyer 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).

  • Rotary electrical machines having a superconducting field winding
    Patent number: 4058747
    Abstract: A synchronous rotary electric machine has a stationary superconducting D.C. field winding, a rotatable mechanical torque transmission shaft which carries normally conducting polyphase windings for providing a rotating field when A.C. currents circulate therein, and stationary auxiliary D.C. windings constructed to deliver a magnetic field. The currents in the auxiliary windings are adjusted for maintaining the torque and axial force tending to move the field winding under a predetermined value.
    Type: Grant
    Filed: April 13, 1976
    Date of Patent: November 15, 1977
    Assignee: Agence Nationale de Valorisation de la Recherche (ANVAR)
    Inventors: Alain Mailfert, Lionel Boyer
  • Rotary electrical machines comprising a superconductive winding
    Patent number: 4001617
    Abstract: A rotary motor has a superconducting freely spinning field winding, A.C. armature windings and electrically conductive screen means connected to an output shaft. The field winding consists of a flat winding delivering a magnetic field whose lines of flux are parallel to the axis. The armature winding straddles the field winding and is separated therefrom by the screen means.
    Type: Grant
    Filed: May 29, 1975
    Date of Patent: January 4, 1977
    Assignee: Agence Nationale de Valorisation de la Rechereche (ANVAR)
    Inventor: Lionel Boyer