Patents by Inventor André Bouille

André Bouille 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).

  • Damper system and bearing centering device for magnetic bearing vacuum pump
    Patent number: 6483216
    Abstract: In a vacuum pump according to the invention, the rotor is held inside the stator by radial magnetic bearings, and its radial movements are limited by one or more landing mechanical bearings each made up of a rotor rolling bearing race and a stator rolling bearing race. At least one coaxial ring of elastomer in the shape of a torus is inserted between the outside peripheral surface of the stator rolling bearing race and the stator itself to constitute a damped elastic connection which significantly increases the reliability and the service life of the landing mechanical bearing.
    Type: Grant
    Filed: January 29, 2001
    Date of Patent: November 19, 2002
    Assignee: Alcatel
    Inventors: André Bouille, Jean-Emile Chollet
  • Molecular drag pump
    Patent number: 6186749
    Abstract: A molecular drag pump comprising a rotor housed inside a case having a suction inlet and a delivery outlet, said pump being associated at its inlet with a valve comprising a valve mechanism inside a valve envelope, wherein the valve envelope is integral with said pump case.
    Type: Grant
    Filed: March 12, 1999
    Date of Patent: February 13, 2001
    Assignee: Alcatel
    Inventors: André Bouille, Jean-Francois Guilbert