Patents by Inventor Pierre Touchon

Pierre Touchon 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 the differentiated hardening of glass sheets, especially of automobile windshields, and tempered glass sheet
    Patent number: 4508783
    Abstract: The invention relates to a method of differentiated rate of hardening of a glass sheet by blowing a cooling gas in the direction of this sheet having two zones from nozzles. According to the invention, a simultaneous solidification of the glass sheet is produced at both zones of the sheet in spite of the differentiated treatments applied to establish a difference of hardening between the different zones of the sheet. Application is to the production of flat glass sheets.
    Type: Grant
    Filed: April 18, 1983
    Date of Patent: April 2, 1985
    Assignee: Saint-Gobain Vitrage
    Inventors: Claude Aubry, Jacques Chaumette, Pierre Touchon