Patents by Inventor Thierry CELOTTO

Thierry CELOTTO 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).

  • Welded steel sheets, and sheets thus produced
    Patent number: 11959150
    Abstract: A steel sheet that is welded and then cold rolled to a thickness between 0.5 mm and 3 mm, the deformation ratio created by cold rolling in the base metal is equal to ?MB, for which the deformation ratio created by the cold rolling in the welded joint is equal to ?S, where: 0.4 ? ?S ? ? M ? B < 0.7 .
    Type: Grant
    Filed: September 9, 2021
    Date of Patent: April 16, 2024
    Assignee: ArcelorMittal
    Inventors: Emmanuel Dechassey, Christophe Silvy-Leligois, Francisco Chicharro Herranz, Vicente Polo Mestre, Marie-Christine Theyssier, Thierry Celotto, Christine Kaczynski, Thomas Dupuy, Quang-Tien Ngo
  • Method for manufacturing cold-rolled, welded steel sheets, and sheets thus produced
    Patent number: 11220723
    Abstract: A method for the manufacture of a cold-rolled steel sheet of thickness ef between 0.5 mm and 3 mm is provided. At least two hot-rolled sheets of thickness ei are supplied and butt welded, so as to create a welded joint (S1) with a direction perpendicular to the direction of hot rolling. The at least two hot-rolled sheets are pickled by continuous passage through a bath, then the assembly is cold rolled, in a step (L1), to an intermediate thickness eint, the direction of cold rolling (DL1) coinciding with the direction of hot rolling. The cold rolling is carried out with a reduction ratio ? 1 = Ln ? ( e i e int ) such that: 0 . 3 ? 5 ? Ln ? ? ( ei e ? ? int ) Ln ? ? ( e ? i e ? f ) ? 0 . 6 ? 5 , then the welded joint (S1) is removed so as to obtain at least two intermediate cold-rolled sheets.
    Type: Grant
    Filed: February 27, 2017
    Date of Patent: January 11, 2022
    Assignee: ArcelorMittal
    Inventors: Emmanuel Dechassey, Christophe Silvy-Leligois, Francisco Chicharro Herranz, Vicente Polo Mestre, Marie-Christine Theyssier, Thierry Celotto, Christine Kaczynski, Thomas Dupuy, Quang-Tien Ngo
  • WELDED STEEL SHEETS, AND SHEETS THUS PRODUCED
    Publication number: 20220002833
    Abstract: A steel sheet that is welded and then cold rolled to a thickness between 0.5 mm and 3 mm, the deformation ratio created by cold rolling in the base metal is equal to ?MB, for which the deformation ratio created by the cold rolling in the welded joint is equal to ?S, where: 0.4 ? ?S ? ? M ? B < 0.7 .
    Type: Application
    Filed: September 9, 2021
    Publication date: January 6, 2022
    Inventors: Emmanuel DECHASSEY, Christophe SILVY-LELIGOIS, Francisco CHICHARRO HERRANZ, Vicente POLO MESTRE, Marie-Christine THEYSSIER, Thierry CELOTTO, Christine KACZYNSKI, Thomas DUPUY, Quang-Tien NGO
  • METHOD FOR MANUFACTURING COLD-ROLLED, WELDED STEEL SHEETS, AND SHEETS THUS PRODUCED
    Publication number: 20200299796
    Abstract: A method for the manufacture of a cold-rolled steel sheet of thickness ef between 0.5 mm and 3 mm is provided. At least two hot-rolled sheets of thickness ei are supplied and butt welded, so as to create a welded joint (S1) with a direction perpendicular to the direction of hot rolling. The at least two hot-rolled sheets are pickled by continuous passage through a bath, then the assembly is cold rolled, in a step (L1), to an intermediate thickness eint, the direction of cold rolling (DL1) coinciding with the direction of hot rolling. The cold rolling is carried out with a reduction ratio ? 1 = Ln ? ( e i e int ) such that: 0 . 3 ? 5 ? Ln ? ? ( ei e ? ? int ) Ln ? ? ( e ? i e ? f ) ? 0 . 6 ? 5 , then the welded joint (S1) is removed so as to obtain at least two intermediate cold-rolled sheets.
    Type: Application
    Filed: February 27, 2017
    Publication date: September 24, 2020
    Inventors: Emmanuel DECHASSEY, Christophe SILVY-LELIGOIS, Francisco CHICHARRO HERRANZ, Vicente POLO MESTRE, Marie-Christine THEYSSIER, Thierry CELOTTO, Christine KACZYNSKI, Thomas DUPUY, Quang-Tien NGO