Patents by Inventor Charles Dennis Price

Charles Dennis Price 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 adding STMP to a gypsum slurry
    Patent number: 8066421
    Abstract: The disclosure relates to a method for effectively and efficiently adding sodium trimetaphosphate to a gypsum slurry. In one exemplary embodiment, the sodium trimetaphosphate is added at the same time as foam is added to the gypsum slurry through the foam waterline. In another exemplary embodiment, the sodium trimetaphosphate is added at the same time as additional water is added to the gypsum slurry through the gauging waterline. The sodium trimetaphosphate can be added to either or both waterlines in its dry form or in a diluted solution.
    Type: Grant
    Filed: July 3, 2007
    Date of Patent: November 29, 2011
    Assignee: National Gypsum Properties, LLC
    Inventors: Gopalakrishnan Sethuraman, Charles Dennis Price, John L. Phillips
  • Method of Adding STMP to a Gypsum Slurry
    Publication number: 20090010093
    Abstract: The disclosure relates to a method for effectively and efficiently adding sodium trimetaphosphate to a gypsum slurry. In one exemplary embodiment, the sodium trimetaphosphate is added at the same time as foam is added to the gypsum slurry through the foam waterline. In another exemplary embodiment, the sodium trimetaphosphate is added at the same time as additional water is added to the gypsum slurry through the gauging waterline. The sodium trimetaphosphate can be added to either or both waterlines in its dry form or in a diluted solution.
    Type: Application
    Filed: July 3, 2007
    Publication date: January 8, 2009
    Applicant: National Gypsum Properties, LLC
    Inventors: Gopalakrishnan Sethuraman, Charles Dennis Price, John L. Phillips