Patents by Inventor Jacques Ouvrard

Jacques Ouvrard 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).

  • Process for manufacturing a strip of steel sheet for the production of metal packaging by drawings and steel sheet obtained
    Patent number: 6156131
    Abstract: A process for producing a strip of steel sheet, for the production of metal packaging, comprising forming a hot-rolled strip of steel having the following composition by weight: carbon up to 0.08%, silicon .ltoreq.0.020%, manganese between 0.05% and 0.60%, sulphur .ltoreq.0.020%, phosphorus .ltoreq.0.020%, nitrogen up to 0.016%, aluminum up to 0.060%, copper .ltoreq.0.06%, nickel .ltoreq.0.040%, and, optionally, chromium and boron, the balance consisting of iron and inevitable impurities, then carrying out a first cold-rolling operation on the hot-rolled strip in order to obtain a blank, subjecting the blank to a continuous recrystallization annealing operation, carrying out a second cold-rolling operation on the blank in at least two passes in order to obtain the sheet with its final thickness, wherein between the two passes of the second cold rolling, the strip of sheet is subjected to an ageing operation at a temperature of at most 300.degree. C.
    Type: Grant
    Filed: October 5, 1998
    Date of Patent: December 5, 2000
    Assignee: Sollac
    Inventors: Veronique Sardoy, Jean Claude Jouvenel, Jacques Ouvrard
  • Process for preparing a steel strip and novel steel strip
    Patent number: 5704997
    Abstract: A steel strip and method for its production.
    Type: Grant
    Filed: December 21, 1995
    Date of Patent: January 6, 1998
    Assignee: Sollac (Societe Anonyme)
    Inventors: Jacques Ouvrard, Michel Chauvire, Jean-Claude Jouvenel