Patents by Inventor Harold E. Goetzman

Harold E. Goetzman 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).

  • Pellets useful in shaft furnace direct reduction and method of making same
    Patent number: 3975182
    Abstract: Iron ore or concentrates containing about 0.5 to about 3.0% silica, 0.5 to 1.0% bentonite and 96.5 to 99.0% iron oxide together with 7.0 to 12.0% moisture is pelletized, the pellets are surface-coated with about 1 to about 4.5% limestone and fired at a temperature of about 2100.degree. to about 2400.degree.F., the formed pellets being suitable for direct reduction temperatures above 1400.degree.F in a shaft furnace with a minimum of clustering.
    Type: Grant
    Filed: August 2, 1974
    Date of Patent: August 17, 1976
    Assignee: United States Steel Corporation
    Inventor: Harold E. Goetzman