Patents by Inventor Dian Jean-Raoul

Dian Jean-Raoul 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 of detecting plastics articles, and a detector device
    Patent number: 6888356
    Abstract: The method of detecting plastics material, in particular for a postal sorting installation through which articles pass, is intended to distinguish automatically between articles having an outside surface made of plastics material and articles having an outside surface made of paper. The method consists in moving each article past an electrostatic generator, and then past a member for evaluating electrostatic charge so as to compare the charge on the article with a reference value in order to detect whether the article is a plastics article or a paper article. The method increases the reliability of detection.
    Type: Grant
    Filed: January 21, 2003
    Date of Patent: May 3, 2005
    Assignee: Solystic
    Inventor: Dian Jean-Raoul
  • Method of detecting plastics articles, and a detector device
    Publication number: 20030155388
    Abstract: The method of detecting plastics material, in particular for a postal sorting installation through which articles pass, is intended to distinguish automatically between articles having an outside surface made of plastics material and articles having an outside surface made of paper. The method consists in moving each article past an electrostatic generator, and then past a member for evaluating electrostatic charge so as to compare the charge on the article with a reference value in order to detect whether the article is a plastics article or a paper article. The method increases the reliability of detection.
    Type: Application
    Filed: January 21, 2003
    Publication date: August 21, 2003
    Applicant: SOLYSTIC
    Inventor: Dian Jean-Raoul