Patents by Inventor Francisca GARCIA CABALLERO

Francisca GARCIA CABALLERO 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).

  • Publication number: 20200291498
    Abstract: A method for manufacturing a rail includes casting a steel to obtain a semi-product. The steel has a composition comprising 0.20%?C?0.60%, 1.0%?Si?2.0%, 0.60%?Mn?1.60% and 0.5?Cr?2.2%, optionally 0.01%?Mo?0.3%, 0.01%?V?0.30%; the remainder being Fe and impurities. The method also includes hot rolling the semi-product into a hot rolled semi-product having the shape of the rail and comprising a head, with a final rolling temperature TFRT higher than Ar3; and cooling the head to a cooling stop temperature TCS between 200° C. and 520° C. The temperature of the head over time is comprised between a upper boundary having the coordinates defined by A1 (0 second, 780° C.), B1 (50 seconds, 600° C.), and C1 (110 seconds, 520° C.) and a lower boundary having the coordinates defined by A2 (0 second, 675° C.), B2 (50 seconds, 510° C.), and C2 (110 seconds, 300° C.). The method also includes maintaining the head in a temperature range comprised between 300° C. and 520° C.
    Type: Application
    Filed: November 27, 2018
    Publication date: September 17, 2020
    Inventors: José ARANCON ALVAREZ, David ALVAREZ DIEZ, José Manuel ARTIMEZ ENCINA, Francisca GARCIA CABALLERO, Benjamin POHU