Patents by Inventor Kay F. Harvey

Kay F. Harvey 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: 4758244
    Abstract: Densified coal pellets of improved physical properties and enhanced calorific value are produced by a process which includes subjecting coal to a shearing-attritioning step followed by extrusion and drying steps, characterised by incorporating an additive into the coal that is subject to the said shearing-attritioning step, said additive being chosen from one or more of the group consisting of: alkali metal hydroxides, alkaline earth metal hydroxides, ammonium hydroxide, alkali metal carbonates, alkaline earth carbonates, oxides of base metals, oxides of transition metals, and small molecule carbonyl compounds.
    Type: Grant
    Filed: December 8, 1986
    Date of Patent: July 19, 1988
    Assignees: University of Melbourne, CRA Services Limited
    Inventors: Kay F. Harvey, Theodore V. Verheyen, Reginald B. Johns, Alan L. Chaffee, Alan S. Buchanan, David A. Cain