Patents by Inventor Alain Wermelinger

Alain Wermelinger 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).

  • Plant for generating an atmosphere for the heat treatment of metals
    Patent number: 4279406
    Abstract: This invention relates to the generation of an atmosphere for the heat treatment of metals, incorporating an alcohol of the methanol type that decomposes by cracking.A generating plant comprises a nitrogen circuit connected to a pressure source, an alcohol circuit connected to a pressurized tank containing the alcohol in the liquid phase and an injector arranged to feed the alcohol and nitrogen into the furnace in the form of a mist of alcohol within a jet of nitrogen.The invention is applicable in particular to the hardening, heating prior to quenching, and annealing of steels.
    Type: Grant
    Filed: February 20, 1980
    Date of Patent: July 21, 1981
    Assignee: L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des procedes Georges Claude
    Inventors: Yves Bourhis, Alain Wermelinger, Michel Kostelitz