Patents by Inventor Henri Bonnarens

Henri Bonnarens 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).

  • Method and device for improving the properties of thin steel plates
    Patent number: 4329562
    Abstract: In order to improve the surface characteristics of steel structure, it is oposed according to the invention to make at least one roll of a rolling-mill with a motif or pattern of motifs. The invention also includes apparatus for marking the roll which includes means for driving the roll marking device itself from the roll so that proper synchronization between the movements of the roll and marking device is achieved.
    Type: Grant
    Filed: September 20, 1978
    Date of Patent: May 11, 1982
    Assignee: Centre de Recherches Metallurgiques-Centrum voor Research in Metallurgie
    Inventors: Jean Crahay, Christian Marique, Henri Bonnarens, Rene DeFraye, Adolphe Bragard