Patents by Inventor Harry W. Hockin, deceased

Harry W. Hockin, deceased 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: 4378243
    Abstract: A method and means for improved control of the process for directly reducing materials containing iron oxides in a rotary kiln using a solid carbonaceous reducing agent, such as coal, introduced from the charge feed and discharge ends of the kiln, as the source of both fuel and reductant, and oxygen-containing gas introduced along the kiln length is disclosed wherein the portion of the reducing agent fed at the discharge end is blown as a stream in a prescribed manner into the discharge end of the kiln. In particular, the important features of the stream are described including its longitudinal distribution and axial spread over the charge bed, as well as its contact region with the kiln walls and the quandrants of the kiln barrel into which it is directed, whereby the bed and gas phase temperatures may be controlled and heat transfer to the bed enhanced.
    Type: Grant
    Filed: May 22, 1981
    Date of Patent: March 29, 1983
    Assignee: The Direct Reduction Corporation
    Inventors: Harry W. Hockin, deceased, Brian F. Bracanin, Ronald J. Clements, Vitie P. Keran, Alan C. Baker, Thomas W. Goodell
  • Patent number: 4356031
    Abstract: A method and means for maintaining optimum operation of the process for directly reducing iron oxides in a rotary kiln, using a solid carbonaceous reducing agent, such as coal fed at both the charge feed end and discharge end as the source of fuel and reductant, and oxygen-containing gases is disclosed wherein the DRI product, charred coal or char, and fine waste found in the kiln discharge materials from the discharge end are separated and measured for fixed carbon content and the process parameters may be adjusted to optimum by establishing an appropriate percentage by weight, in the range from 5% to 15%, of fixed carbon in the total of these discharge materials.
    Type: Grant
    Filed: March 16, 1981
    Date of Patent: October 26, 1982
    Assignee: The Direct Reduction Corporation
    Inventors: Harry W. Hockin, deceased, Brian F. Bracanin, Ronald J. Clements, Vitie P. Keran, Alan C. Baker