Patents Assigned to Institut de la Filtration et des Techniques Separatives Foulayronnes
  • Tangential filtration apparatus and plant comprising such apparatus
    Patent number: 4569759
    Abstract: A filtration apparatus includes at least one tangential filtration module ving at least one filtration element defining a conduit arranged in a spiral configuration within an enclosure in the form of a body of revolution. The element defines a helicoidal slope for liquid to be filtered and causes such liquid to pass through the module along a helicoidal path. The liquid is tangentially filtered, and filtrate is delivered to the exterior of the module.
    Type: Grant
    Filed: March 22, 1984
    Date of Patent: February 11, 1986
    Assignees: Societe Lyonnaise des Eaux et de l'Eclairage, Degremont, Institut de la Filtration et des Techniques Separatives Foulayronnes
    Inventors: Roger Ben Aim, Daniel Bourdiol, Francois Fiessinger, Jean-Marie Rovel