Patents by Inventor Michel Lacour

Michel Lacour 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).

  • Jacketed active magnetic bearing
    Patent number: 7545066
    Abstract: The jacketed active magnetic bearing is applied to a rotary machine having a rotor in contact with a process gas and placed in a leaktight enclosure. The magnetic stator is protected by a first jacket of magnetic anti-corrosion material that constitutes a portion of the leaktight enclosure and that is secured to the bearing stator, and the detector stator is protected by a second jacket of non-magnetic anti-corrosion material that constitutes a portion of the leaktight enclosure and that is secured to the detector stator. The bearing armature and the detector armature can be made of a laminated magnetic identical to that of the first jacket.
    Type: Grant
    Filed: February 23, 2007
    Date of Patent: June 9, 2009
    Assignee: Societe de Mecanique Magnetique
    Inventors: Luc Baudelocque, Armand Lapierre, Maurice Brunet, Michel Lacour
  • Jacketed active magnetic bearing
    Publication number: 20070200443
    Abstract: The jacketed active magnetic bearing is applied to a rotary machine having a rotor in contact with a process gas and placed in a leaktight enclosure. The magnetic stator is protected by a first jacket of magnetic anti-corrosion material that constitutes a portion of the leaktight enclosure and that is secured to the bearing stator, and the detector stator is protected by a second jacket of non-magnetic anti-corrosion material that constitutes a portion of the leaktight enclosure and that is secured to the detector stator. The bearing armature and the detector armature can be made of a laminated magnetic identical to that of the first jacket.
    Type: Application
    Filed: February 23, 2007
    Publication date: August 30, 2007
    Inventors: Luc Baudelocque, Armand Lapierre, Maurice Brunet, Michel Lacour
  • Device for compensating geometrical defects in the ring of a radial detector of the active magnetic suspension of a rotor
    Patent number: 4583031
    Abstract: For compensating the geometrical defects of the annular armature of a radial position detector slaving an active radial magnetic bearing, a reference rotor having a small diameter is co-axially mounted within the rotor supporting the annular armature. The rotor supporting the annular armature and the reference rotor are both rotated in synchronism while a reference surface of the reference rotor is sensed by an additional radial position detector. A plurality of data representing the geometrical defects of the annular armature as a function of the angular position of the rotor are derived from the output of the additional radial position detector and stored in a memory to be applied to a compensation circuit linked with the radial position detector.
    Type: Grant
    Filed: March 20, 1985
    Date of Patent: April 15, 1986
    Assignee: Societe Europeenne de Propulsion
    Inventors: Maurice Brunet, Michel Lacour