Patents by Inventor Howard T. Spruill

Howard T. Spruill 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).

  • Heat recovery through oxidation of elemental phosphorus in a fluidized bed
    Patent number: 4618483
    Abstract: There is disclosed a process for the recovery of the heat values produced during the combustion of phosphorus to phosphorus pentoxide. The disclosed process dries ambient air to produce dry air, and combusts elemental phosphorus in said dry air in at least one fluid bed having in intimate contact therewith steam generating means containing steam generating fluid.
    Type: Grant
    Filed: July 26, 1985
    Date of Patent: October 21, 1986
    Assignee: Stauffer Chemical Company
    Inventors: Howard T. Spruill, Thelton A. Webster