Patents by Inventor Marc-Henry Rossier

Marc-Henry Rossier 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).

  • Flow cut-off method for foundry installations
    Patent number: 4304287
    Abstract: A foundry installation control device is disclosed for causing a rapid cut off of a molten metal flow at the time when a mold is full. Two detectors are provided, one of which collects information concerning the instantaneous rate of metal flow pouring from a ladle into a sprue cup while the other collects information on the level of the molten metal in the cup. An electronic circuit connected to the outputs of the two detectors produces a mold filling signal which undergoes a sharp fluctuation at the precise moment when filling is completed. This signal is compared with an instruction value and causes the generation of a flow cut-off signal which triggers the cessation of pouring by righting of the ladle in the case of a tilting ladle, closing of the stopper in the case of a bottom-pour ladle, or closing the discharge valve in the case of a pressure ladle.
    Type: Grant
    Filed: April 18, 1980
    Date of Patent: December 8, 1981
    Assignee: Maschinenfabrik & Eisengiesserei
    Inventors: Gerard A. Lavanchy, Marc-Henry Rossier, Fritz Mezger
  • Flow cut-off method and apparatus for foundry installations
    Patent number: 4227565
    Abstract: A foundry installation control device is disclosed for causing a rapid cut off of a molten metal flow at the time when a mold is full. Two detectors are provided, one of which collects information concerning the instantaneous rate of metal flow pouring from a ladle into a sprue cup while the other collects information on the level of the molten metal in the cup. An electronic circuit connected to the outputs of the two detectors produces a mold filling signal which undergoes a sharp fluctuation at the precise moment when filling is completed. This signal is compared with an instruction value and causes the generation of a flow cut-off signal which triggers the cessation of pouring by righting of the ladle in the case of a tilting ladle, closing of the stopper in the case of a bottom-pour ladle, or closing the discharge valve in the case of a pressure ladle.
    Type: Grant
    Filed: August 29, 1978
    Date of Patent: October 14, 1980
    Assignee: Maschinenfabrik & Eisengiesserei Ed. Mezger AG
    Inventors: Gerard A. Lavanchy, Marc-Henry Rossier, Fritz Mezger