Patents by Inventor Pierre Aubry

Pierre Aubry 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).

  • Process for dissolution of a crystalline material
    Patent number: 5275697
    Abstract: The present invention relates to a process for controlled dissolution of a crystalline material consisting of a number of kinds of ions, in a solution containing a solvent for the crystalline material. Before dissolution, the solution contains at least two kinds of ions of the crystalline material. The molar concentration of ion of each kind is higher than zero and lower than the molar concentration of ion of each kind which the solution would have at saturation if it contained all of the constituent ions of the crystalline material, under the temperature and pressure conditions of the dissolution.
    Type: Grant
    Filed: June 22, 1992
    Date of Patent: January 4, 1994
    Assignee: Compagnie d'Electronique et de Piezo-Electricite C.E.P.E.
    Inventors: Etienne Philippot, Aline Goiffon, Maurice Maurin, Olivier Cambon, Alain Ibanez, Jean-Pierre Aubry
  • Suspension springs for a vibrating piezoelectric plate
    Patent number: 4859898
    Abstract: Disclosed is a suspension spring for a vibrating piezoelectric plate including a first part fixed on a base and a second part for supporting the vibrating plate, the second part a tongue having a first and second end, the second end of the tongue supporting the vibrating plate, the spring being designed so that the end of the tongue which is the closest to the fixing point of the first part to the base is that which supports the vibrating plate.
    Type: Grant
    Filed: March 3, 1988
    Date of Patent: August 22, 1989
    Assignees: Compagnie D'Electronique Et De Piezo-Electricitie C.E.P.E, Office Nationale D'Etudes Recherches Aerospatiales Onera
    Inventors: Jean-Pierre Aubry, Marc Fragneau, Jean-Charles Craveur, Denis Janiaud, Serge Muller
  • Turbine shaft having inserted disks
    Patent number: 4029437
    Abstract: The invention concerns a turbine shaft having stepped bearings on which ds are shrunk on. It is characterized in that the connecting surface between two successive bearings consists of two conical portions separated by a cylindrical portion and toroidal connecting portions between the cylindrical portion and the conical portions. The invention reduces the concentrations of stresses and applies more particularly to elastic fluid turbine shafts.
    Type: Grant
    Filed: December 10, 1975
    Date of Patent: June 14, 1977
    Assignee: Groupe Europeen Pour La Technique Des Turbines a Vapeur G.E.T.T.
    Inventors: Pierre Aubry, Antoine Marques, Rene Schwartz