Patents by Inventor Hans-Friedrich Smets

Hans-Friedrich Smets 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).

  • Device for the continuous addition of casting auxiliaries onto the surface of a melt in a continuous-casting mold
    Patent number: 5311921
    Abstract: A pulverulent casting auxiliary (6) is removed from a supply tank (1) in the fluidized state and conveyed through a screw conveyor (10) via a continuous-casting mold (12). At the end of the screw conveyor (10) a return line (30) is provided via which the quantity of casting auxiliary (6) not removed at the removal points (19) disposed over the bath surface (18) is returned into the supply tank (1) in a circulating manner.
    Type: Grant
    Filed: January 11, 1993
    Date of Patent: May 17, 1994
    Assignee: Intocast GmbH Feuerfestprodukte und Giesshilfsmittel
    Inventor: Hans-Friedrich Smets