Patents by Inventor Edmund R. Nagel

Edmund R. Nagel 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).

  • Treatment of cast metal in cope mold pouring basin
    Patent number: 4779668
    Abstract: A method and means are provided for treating molten metal with an additive in a foundry mold. A recessed treatment chamber for an additive is provided in the top of a mold. The chamber is covered with a discrete refractory core body. Molten metal poured on the core body is directed into the chamber where it reacts with the additive before entering the casting cavity. The subject invention is particularly adapted to making nodular or compacted graphite iron castings by treating grey iron with a magnesium containing additive.
    Type: Grant
    Filed: October 16, 1981
    Date of Patent: October 25, 1988
    Assignee: General Motors Corporation
    Inventors: Edmund R. Nagel, Thomas J. Gray