Patents by Inventor Robert S. Miltenberger

Robert S. Miltenberger 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).

  • Patent number: 4014683
    Abstract: Drawing Quality steel having low carbon, oxygen, and aluminum contents is produced through the use of continuous casting. After tapping steel of the lowest possible carbon content at 2,960.degree. F., predetermined amounts of manganese and aluminum are added to the ladle. The amount of manganese added is such that the manganese content at the conclusion of the process will be in the range of 0.20 to 0.35%. The amount of aluminum added is of small quantity for purposes of removing some of the oxygen from the steel to prevent boiling on refractories due to excessive oxygen; the aluminum added is consumed in deoxidation so that the aluminum content in the steel is not increased at that stage. After the addition of manganese and aluminum the steel is vacuum degassed. During vacuum degassing, predetermined amounts of carbon and aluminum which are mixed in briquette form are added at a predetermined, controlled rate to complete deoxidation.
    Type: Grant
    Filed: December 23, 1974
    Date of Patent: March 29, 1977
    Assignee: National Steel Corporation
    Inventor: Robert S. Miltenberger