Patents by Inventor Daniel J. Sanford

Daniel J. Sanford 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 and method for introducing gas into a shaft furnace without disturbing burden flow
    Patent number: 6146442
    Abstract: An apparatus for the direct reduction of iron oxide utilizing a shaft furnace equipped with a bustle and tuyere system having multiple rows of tuyeres. The bustle and tuyere system utilizes multiple rows of tuyeres to aid in the reduction of gas velocities through the system and to improve burden flow.
    Type: Grant
    Filed: January 8, 1999
    Date of Patent: November 14, 2000
    Assignee: Midrex International B.V. Rotterdam, Zurich Branch
    Inventor: Daniel J. Sanford