Patents by Inventor Bradford True

Bradford True 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).

  • System and method of producing metallic iron
    Patent number: 8177880
    Abstract: A hearth furnace 10 for producing metallic iron material has a furnace housing 11 with a drying/preheat zone 12 capable of providing a drying/preheat atmosphere for reducible material, a conversion zone 13 capable of providing a reducing atmosphere for reducible material, a fusion zone 14 capable of providing an atmosphere to at least partially reduced metallic iron material, and optionally a cooling zone 15 capable of providing a cooling atmosphere for reduced material containing metallic iron material. A hearth 20 is movable within the furnace housing 11 in a direction through the drying/preheat zone 12, then the conversion zone 13, then the fusion zone 14, and then the cooling zone 15.
    Type: Grant
    Filed: October 4, 2007
    Date of Patent: May 15, 2012
    Assignee: Nu-Iron Technology, LLC
    Inventors: David Englund, Rodney Bleifuss, Iwao Iwasaki, Donald Fosnacht, Mark Brandon, Bradford True
  • SYSTEM AND METHOD OF PRODUCING METALLIC IRON
    Publication number: 20100031776
    Abstract: A hearth furnace 10 for producing metallic iron material has a furnace housing 11 with a drying/preheat zone 12 capable of providing a drying/preheat atmosphere for reducible material, a conversion zone 13 capable of providing a reducing atmosphere for reducible material, a fusion zone 14 capable of providing an atmosphere to at least partially reduced metallic iron material, and optionally a cooling zone 15 capable of providing a cooling atmosphere for reduced material containing metallic iron material. A hearth 20 is movable within the furnace housing 11 in a direction through the drying/preheat zone 12, then the conversion zone 13, then the fusion zone 14, and then the cooling zone 15.
    Type: Application
    Filed: October 4, 2007
    Publication date: February 11, 2010
    Applicant: NU-IRON TECHNOLOGY, LLC
    Inventors: David Englund, Rodney Bleifuss, Iwao Iwasaki, Donald Fosnacht, Mark Brandon, Bradford True