Patents by Inventor Alain Lienard

Alain Lienard 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).

  • Method for diagnosing the operation of a water purification installation of the filter medium device type, and a diagnostic tool suitable for said method
    Patent number: 8590711
    Abstract: The invention relates to a method of diagnosing the operation of a water purification installation of the filter medium device type, the material of the filter medium being made up of particles, the method including the following steps: a characterization step of characterizing at least one physical and/or mechanical parameter of the filter medium device to establish a permeability value Ks (expressed in m/s); a comparison step of comparing said established permeability value Ks with a predetermined range [kmin; kmax] of permeability values representing a satisfactory operating state of the purification installation; and a diagnosis step during which the filter medium device is assigned an operation indicator according to the result of the comparison step. Applications include non-collective sanitation (NCS) systems and stand-alone sanitation systems.
    Type: Grant
    Filed: January 18, 2010
    Date of Patent: November 26, 2013
    Assignees: Veolia Eau-Compagnie Generale des Eaux, Centre National du Machinisme Agricole, du Genie Rural, des Eaux et des Forets (CEMAGREF), Universite Blaise Pascal—Clermont II
    Inventors: Christian Vignoles, Pascal Molle, Alain Lienard, Laurence Rolland, Pierre Breul, Fathe Bouteldja, Daniel Boissier
  • METHOD FOR DIAGNOSING THE OPERATION OF A WATER PURIFICATION INSTALLATION OF THE FILTER MEDIUM DEVICE TYPE, AND A DIAGNOSTIC TOOL SUITABLE FOR SAID METHOD
    Publication number: 20120031194
    Abstract: The invention relates to a method of diagnosing the operation of a water purification installation of the filter medium device type, the material of the filter medium being made up of particles, the method including the following steps: a characterization step of characterizing at least one physical and/or mechanical parameter of the filter medium device to establish a permeability value Ks (expressed in m/s); a comparison step of comparing said established permeability value Ks with a predetermined range [kmin; kmax] of permeability values representing a satisfactory operating state of the purification installation; and a diagnosis step during which the filter medium device is assigned an operation indicator according to the result of the comparison step. Applications include non-collective sanitation (NCS) systems and stand-alone sanitation systems.
    Type: Application
    Filed: January 18, 2010
    Publication date: February 9, 2012
    Applicants: UNIVERSITE BLAISE PASCAL- CLERMONT II, VEOLIA EAU
    Inventors: Christian Vignoles, Pascal Molle, Alain Lienard, Laurence Rolland, Pierre Breul, Fathe Bouteldja, Daniel Boissier
  • Metal part having external surface with particular profile, polishing method for its production and device for implementing the method
    Patent number: 6736697
    Abstract: The invention relates to a circularly-symmetrical metal part (1) having an outer surface (3) which, in axial section, has a general profile made up of a uniform succession of flattened convex arches (4). The invention also relates to a polishing method in which the polishing means move in a tracking motion so as to track the outer surface of the part to be polished, and to apparatus for implementing the polishing method.
    Type: Grant
    Filed: March 26, 2001
    Date of Patent: May 18, 2004
    Assignee: Uranie International
    Inventor: Alain Lienard
  • Metal part having external surface with particular profile, polishing method for its production and device for implementing the method
    Publication number: 20010011001
    Abstract: The invention relates to a circularly-symmetrical metal part (1) having an outer surface (3) which, in axial section, has a general profile made up of a uniform succession of flattened convex arches (4). The invention also relates to a polishing method in which the polishing means move in a tracking motion so as to track the outer surface of the part to be polished, and to apparatus for implementing the polishing method.
    Type: Application
    Filed: March 26, 2001
    Publication date: August 2, 2001
    Inventor: Alain Lienard