Patents by Inventor Daniel W. Gates

Daniel W. Gates 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 preparing zinc orthotitanate pigment
    Patent number: 4039347
    Abstract: Zinc orthotitanate (Zn.sub.2 TiO.sub.4) suitable for use as a pigment for spacecraft thermal control coatings is prepared by heating a slightly zinc-deficient reaction mixture of precipitated oxalates of zinc and titanium. The reaction mixture can be formed by co-precipitation of zinc and titanium oxalates from chloride solution or by mixing separately precipitated oxalates. The mixture is first heated to 400.degree. to 600.degree. C to remove volatiles and is then rapidly heated at 900.degree. to 1200.degree. C. Zinc orthotitanate produced by this method exhibits the very fine particle size needed for thermal control coatings as well as stability in a space environment.
    Type: Grant
    Filed: June 17, 1976
    Date of Patent: August 2, 1977
    Inventors: James C. Administrator of the National Aeronautics and Space Administration, with respect to an invention of Fletcher, Daniel W. Gates, Yoshiro Harada, William R. Logan, John E. Gilligan