Patents by Inventor Walter Ray Whitman

Walter Ray Whitman 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-metallic composites with improved properties and their methods of manufacture
    Patent number: 11136268
    Abstract: Ceramic-metallic composites are disclosed along with the processes for their manufacture. The present invention improves high temperature strength of Al2O3—Al composites by displacing aluminum in the finished product with other substances that enhance the high temperature strength. Each process commences with a preform initially composed of at least 5% by weight silicon dioxide, and the finished product includes Al2O3, aluminum and another substance.
    Type: Grant
    Filed: February 14, 2020
    Date of Patent: October 5, 2021
    Inventors: Klaus-Markus Peters, Brian Paul Hetzel, Walter Ray Whitman
  • CERAMIC-METALLIC COMPOSITES WITH IMPROVED PROPERTIES AND THEIR METHODS OF MANUFACTURE
    Publication number: 20210253481
    Abstract: Ceramic-metallic composites are disclosed along with the processes for their manufacture. The present invention improves high temperature strength of Al2O3—Al composites by displacing aluminum in the finished product with other substances that enhance the high temperature strength. Each process commences with a preform initially composed of at least 5% by weight silicon dioxide, and the finished product includes Al2O3, aluminum and another substance.
    Type: Application
    Filed: February 14, 2020
    Publication date: August 19, 2021
    Inventors: Klaus-Markus Peters, Brian Paul Hetzel, Walter Ray Whitman
  • Ceramic-metallic composites devoid of porosity and their methods of manufacture
    Patent number: 11040913
    Abstract: Ceramic-metallic composites are disclosed along with the equipment and processes for their manufacture. The present invention improves the densities of these composites by eliminating porosity through the use of a unique furnace system that applies vacuum and positive gas pressure during specific stages of processing. In the fabrication of Al2O3—Al composites, each process commences with a preform initially composed of at least 5% by weight silicon dioxide, and the finished product includes aluminum oxide and aluminum, and possibly other substances.
    Type: Grant
    Filed: August 14, 2020
    Date of Patent: June 22, 2021
    Inventors: Klaus-Markus Peters, Brian Paul Hetzel, Walter Ray Whitman