Patents by Inventor Jean-Fran.cedilla.ois Martin

Jean-Fran.cedilla.ois Martin 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: 5605188
    Abstract: The subject of the invention is a method for regulating the level of the meniscus (13) of the liquid metal in a mold (5) of a machine for the continuous casting of metals, according to which method the electrical signals supplied by at least one pair of sensors (17, 18) overhanging said meniscus are picked up, said signals being a function of the respective distances (h.sub.1, h.sub.2) between said sensors and said meniscus, these two signals are combined so as to obtain a single signal representing an imaginary level of said meniscus and said signal is sent to means (15, 24) for controlling a device (14) for regulating the flow rate of metal penetrating the mold, so that said control means actuate said device so as to bring said imaginary level of said meniscus back to a predetermined set value (h), wherein each signal coming from said sensors is conditioned, eliminating therefrom the oscillations having both a frequency greater than a threshold (F) and an amplitude less than a threshold (D).
    Type: Grant
    Filed: October 23, 1995
    Date of Patent: February 25, 1997
    Assignee: Sollac (Societe Anonyme)
    Inventors: Thierry Banny, Joel Drouot, Jean-Fran.cedilla.ois Martin, Michele Nadif, Didier Becler, Herve Dusser, Alain Mouchette, Odile Thomardel