Patents by Inventor Einar Onarheim

Einar Onarheim 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).

  • Apparatus for use in repair of ingot molds
    Patent number: 3989918
    Abstract: An apparatus for the repair of ingot molds is disclosed. The ingot mold rests upon a layer of graphite powder whereby current can be passed through the ingot mold without the need for grinding thereof.
    Type: Grant
    Filed: June 23, 1975
    Date of Patent: November 2, 1976
    Assignee: Elkem-Spigerverket A/S
    Inventor: Einar Onarheim