Patents by Inventor James E. Trunzo

James E. Trunzo 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).

  • Addition of calcium compounds to the carbothermic reduction of silica
    Patent number: 4798659
    Abstract: What is described is an improvement to a process for the preparation of silicon from the reduction of silicon dioxide with a solid carbonaceous reducing agent, the improvement comprising feeding calcium compounds into the reaction zone of a silicon furnace, and controlling and maintaining a desired calcium level in the reaction zone of the silicon furnace. The calcium compounds may be fed to the silicon furnace as a constituent of either the silicon dioxide or solid carbonaceous reducing agent feeds, as a separate feed, or as a combination of two or more of these feeds.Also described is an improvement to a process for the preparation of silicon carbide from the reduction of silicon dioxide with a solid carbonaceous reducing agent.
    Type: Grant
    Filed: December 22, 1986
    Date of Patent: January 17, 1989
    Assignee: Dow Corning Corporation
    Inventors: Vishu D. Dosaj, Daniel H. Filsinger, James E. Trunzo