Patents by Inventor Richard L. Coatney

Richard L. Coatney 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).

  • Plastically deformable magnesia
    Patent number: 3954488
    Abstract: A composition capable of being plastically deformed at high temperatures contains at least 98% MgO, less than 0.1% B.sub.2 O.sub.3, and, as principal subsidiary components, CaO, SiO.sub.2, and Al.sub.2 O.sub.3. Based on the total weight of the subsidiary components, there is about 65% CaO, from 25 to 33% SiO.sub.2, and from 10 to 2% Al.sub.2 O.sub.3. The composition is preferably substantially free of iron, but in any case the weight of Fe.sub.2 O.sub.3 is no more than one-tenth the weight of Al.sub.2 O.sub.3.
    Type: Grant
    Filed: March 19, 1975
    Date of Patent: May 4, 1976
    Assignee: Kaiser Aluminum & Chemical Corporation
    Inventor: Richard L. Coatney