Patents by Inventor Daniel Le Floch

Daniel Le Floch 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).

  • Production of metal castings
    Patent number: 4087899
    Abstract: The invention relates to a method of producing sand castings in which a set of castings incorporating the casting runners and risers is formed.The castings, which are cast in pairs to form compact members, are placed in baskets and are subjected to refrigeration firstly in a precooling zone and then in a dipping zone in a liquid nitrogen tunnel. After this the compact members are placed on a breaking-up table where they are subjected to mechanical shocks to enable the castings to be separated from their casting risers and runners.Applicable exclusively to "as cast" ductile cast iron.
    Type: Grant
    Filed: March 31, 1977
    Date of Patent: May 9, 1978
    Assignee: L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude
    Inventors: Claude Chevalier, Raymond Le Diouron, Christian Schoutteten, Daniel Le Floch, Jean-Pierre Le Bot