Patents by Inventor James Kammeyer

James Kammeyer 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).

  • Surface converted graphite components and methods of making same
    Patent number: 6221478
    Abstract: The present invention converts the regions of the graphite components in a CZ apparatus that are most prone to erosion to silicon carbide, forming a protective treatment (or “coating”). The coating may cover the entire component or preselected areas of the component. The resulting coating slows erosion of the graphite component and prolongs the lifetime of the component. The method of the invention includes applying a silicon-containing paste to a graphite (or other carbon) component and heating the component so that the silicon combines with carbon from the graphite component to form a protective coating. The paste is preferably a mixture of a silicon-containing powder and a carbon-containing liquid.
    Type: Grant
    Filed: July 24, 1998
    Date of Patent: April 24, 2001
    Inventor: James Kammeyer