Patents by Inventor Nathan A. Fernow

Nathan A. Fernow 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 feeding materials to a cement mill
    Patent number: 7699930
    Abstract: A flow enhanced calcium sulfate product includes a calcium sulfate source material, such as a flue gas desulphurization by-product, is pre-blended with a granular feedstock exhibiting good cementitious properties. The flow enhanced calcium sulfate is fed to a cement mill where it is combined with clinker during a finishing grinding process for portland cement. The flow enhanced calcium sulfate exhibits good flowability without changing the properties of the cement.
    Type: Grant
    Filed: November 21, 2006
    Date of Patent: April 20, 2010
    Assignee: LaFarge North America
    Inventors: Horace H. Compton, Nathan A. Fernow, Ajay Joshi
  • Apparatus and method for feeding materials to a cement mill
    Publication number: 20080115696
    Abstract: A flow enhanced calcium sulfate product includes a calcium sulfate source material, such as a flue gas desulphurization by-product, is pre-blended with a granular feedstock exhibiting good cementitious properties. The flow enhanced calcium sulfate is fed to a cement mill where it is combined with clinker during a finishing grinding process for portland cement. The flow enhanced calcium sulfate exhibits good flowability without changing the properties of the cement.
    Type: Application
    Filed: November 21, 2006
    Publication date: May 22, 2008
    Applicant: LAFARGE NORTH AMERICA
    Inventors: Horace H. Compton, Nathan A. Fernow, Ajay Joshi