Patents by Inventor Robert Mark Golightley

Robert Mark Golightley 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).

  • Method of purifying flue gas waste slurries for use in gypsum production
    Patent number: 6197200
    Abstract: A method of purifying a flue gas desulfurization aqueous waste slurry containing calcium-sulfur salts and residual solid grits, fly ash, carbon and oils by supplying the aqueous waste slurry to a screening station to remove the grits, passing the grit-free aqueous waste slurry to a magnetic separator to remove fly ash components, and transferring the aqueous slurry to a floatation cell to remove carbon and oils therefrom. A purified aqueous slurry of calcium-sulfur salts is removed from the floatation cell which can be used in producing quality plaster, wallboard, or feedstock in producing &agr;-hemihydrate gypsum.
    Type: Grant
    Filed: May 11, 1999
    Date of Patent: March 6, 2001
    Assignee: Eastroc LLC
    Inventors: John W. College, Bryan R. Beyer, Robert Mark Golightley