Patents by Inventor Frank William Ainger

Frank William Ainger 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).

  • Ceramic material and method of making
    Patent number: 3994823
    Abstract: A ceramic material, which consists of lead zirconate with not greater than 20 atomic per cent of bismuth substituted for the lead, according to the formula Pb.sub.1.sub.-3x/2 Bi.sub.x ZrO.sub.3. Titanium to a concentration of not more than 50 atomic per cent can be substituted for the zirconium according to the formula Pb.sub.1.sub.-3x/2 Bi.sub.x Zr.sub.1.sub.-y Ti.sub.y O.sub.3. Potassium to a concentration of 2 to 20 atomic per cent can also be substituted for the lead in any of these materials, according to either the formula Pb.sub.1.sub.-3x/2.sub.-z/2 Bi.sub.x K.sub.z SrO.sub.3 or the formula Pb.sub.1.sub.-3x/2.sub.-z/2 Bi.sub.x K.sub.z Zr.sub.1.sub.-y Ti.sub.y O.sub.3. Uranium can also be included in any one of these ceramic materials to a concentration of not more than 10 atomic per cent. All of the ceramic materials can be produced by ceramic processes and sintering techniques.
    Type: Grant
    Filed: August 22, 1973
    Date of Patent: November 30, 1976
    Inventors: Frank William Ainger, Stephen George Porter