Patents by Inventor Jean-Claude Lautrette

Jean-Claude Lautrette 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).

  • Patent number: 4338193
    Abstract: An horizontal endless belt vacuum filter comprises an endless conveyor belt having a grooved bottom pierced with orifices for the liquid to flow and a table for supporting the upper side of this conveyor belt. This belt comprises, in its central part, a longitudinal vacuum box of which the upper inlet orifice is located beneath the orifices pierced in the belt and is defined between two substantially horizontal lateral flanges. On either side of the vacuum box are provided horizontal longitudinal elements. Plastic guide strips are mounted on the upper flanges of the vacuum box and of the longitudinal elements of the support table.The guide strips are simply fitted on the upper flanges of the vacuum box and of the longitudinal elements, and maintained by simple friction and abutment, without any additional fixing means.The guide strips on which the conveyor belt slides are advantageously snapped on the edges of the flange.
    Type: Grant
    Filed: November 21, 1980
    Date of Patent: July 6, 1982
    Assignee: F. Aoustin et Cie
    Inventors: Jean-Claude Lautrette, Christian A. Queyroix
  • Patent number: 4153550
    Abstract: The present invention relates to a method and apparatus for the continuous filtration of material impregnated with liquid. This method is characterized in that pressure is exerted discontinuously on successive portions of the material to be filtered travelling continuously such that this pressure is applied to each portion of the material as it moves, over a predetermined distance, after which the pressure is no longer applied to this portion in order to be applied to the following portion of material.
    Type: Grant
    Filed: December 19, 1977
    Date of Patent: May 8, 1979
    Assignee: Societe Nouvelle des Filtres Philippe
    Inventor: Jean-Claude Lautrette