Patents by Inventor Joel B. Hill, Jr.

Joel B. Hill, Jr. 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).

  • Flue for the production of soft TiO.sub.2 agglomerates
    Patent number: 4661322
    Abstract: A flue for cooling the flow of reaction product from the high temperature oxidation of a metal halide to the metal oxide in the presence of oxygen, said flue comprising a first section of a given cross-sectional area and a second section wherein the cross-sectional area is decreased thereby increasing the velocity and turbulence of the flow.
    Type: Grant
    Filed: June 25, 1984
    Date of Patent: April 28, 1987
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Joel B. Hill, Jr., William E. Stevens, Reg Davies
  • Process for preparing soft TiO.sub.2 agglomerates
    Patent number: 4462979
    Abstract: A flue for cooling the flow of reaction product from the high temperature oxidation of a metal halide to the metal oxide in the presence of oxygen, said flue comprising a first section wherein the cross-sectional area is increased thereby decreasing the turbulence of the flow and a second section wherein the cross-sectional area is decreased thereby increasing the velocity or turbulence of the flow and the process for using said flue to produce an agglomerate of TiO.sub.2 particles that are readily filterable and easily ground.
    Type: Grant
    Filed: February 25, 1982
    Date of Patent: July 31, 1984
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Joel B. Hill, Jr., William E. Stevens, Reg Davies