Patents by Inventor Luis Vidal Esteban Sanz

Luis Vidal Esteban Sanz 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).

  • Patent number: 6358337
    Abstract: Improved process for the annealing of drawn carbon steel rolls and coils of rolled carbon steel sheet. This process is characterized in that in the stage of roll heating the heating is stopped before reaching the temperature at which the reaction between carbon and H2O in the vapour phase starts. The core of the steel roll is then allowed to heat up progressively until its temperature reaches that of the outer part of the roll. With progressive removal of moisture from the core of the steel roll, heating is applied progressively until a minimum moisture level guaranteeing a sufficiently low partial pressure to avoid the reaction between the carbon in the steel and water vapour is reached. Heating is then continued up to the desired annealing temperature.
    Type: Grant
    Filed: May 12, 2000
    Date of Patent: March 19, 2002
    Assignee: L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude
    Inventors: Luis Vidal Esteban Sanz, Jorge Aixa Barcelo