Patents by Inventor R. James Bushong

R. James Bushong 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).

  • Refractory material
    Patent number: 4162168
    Abstract: A refractory grain material consisting essentially of at least about 97 percent by weight MgO grains, from about 1 to about 3 percent by weight of a combination of CaO, SiO.sub.2, and Al.sub.2 O.sub.3, and up to about 1 percent by weight of at least one oxide selected from the group consisting of Fe.sub.2 O.sub.3 and B.sub.2 O.sub.3 wherein the relative amounts of CaO, SiO.sub.2 and Al.sub.2 O.sub.3 are controlled so that a solid ternary compound of CaO-SiO.sub.2 -Al.sub.2 O.sub.3 is present between the MgO grains.
    Type: Grant
    Filed: December 3, 1976
    Date of Patent: July 24, 1979
    Assignee: The Dow Chemical Company
    Inventors: Russell D. Smith, R. James Bushong