Patents by Inventor Lucien Vignardet

Lucien Vignardet 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).

  • Heat-shaping apparatus
    Patent number: 4067555
    Abstract: This invention relates to apparatus for cutting or shaping material, as by heat-shaping, wherein the outline of a predetermined pattern is copied on the material which is to be worked on by following the pattern with a follower member whose movement is used to control a cutting or heat-shaping tool.A vertically-arranged copying panel to receive the pattern is provided with two horizontal rails and a support which is movable along said rails. The follower member and the tool are mounted on the support and movable in vertical and horizontal directions, respectively, with respect to the support, and the support is movable across the copying panel and material worked on.
    Type: Grant
    Filed: January 21, 1976
    Date of Patent: January 10, 1978
    Assignee: L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude
    Inventors: Lucien Vignardet, Francis Boulet