Patents by Inventor Jean Dufour

Jean Dufour 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).

  • Publication number: 20050019091
    Abstract: Applicator tip for applying liquid product, comprising an elastically deformable outer applicator element provided with a dispensing orifice able to be sealed closed by a shut-off element, and a rigid inner body the upper part of which bears the shut-off element as a projection and is covered, around the shut-off element, with the outer applicator element.
    Type: Application
    Filed: August 8, 2003
    Publication date: January 27, 2005
    Inventor: Jean Dufour
  • Patent number: 5149502
    Abstract: An apparatus for automatic, quantitiative determination of an impurity contained in a product with an uneven upper surface travelling in bulk on a conveyor belt. The apparatus includes a leveling system including a half-cylinder formed of a plastic sheet, and having an arcuate surface downwardly directed toward the belt with the cylinder axis perpendicular to the direction of the belt and having a length which is less than the width of the belt. The half-cylinder is fixed to a frame attached to a lever arm which is in equilibrium about a horizontal shaft. A jack is provided for adjusting the lever arm and enabling the arcuate surface of the half-cylinder to be brought into contact with product travelling on the belt, the jack having a head connected to the lever arm so as to enable the lever arm to oscillate as the leveling device follows variations of the thickness of product travelling on the belt.
    Type: Grant
    Filed: February 5, 1991
    Date of Patent: September 22, 1992
    Assignee: Aluminium Pechiney
    Inventors: Raymond Dablainville, Jean Dufour