Patents by Inventor Dante A. Costanzo

Dante A. Costanzo 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).

  • Method of evaluating the integrity of the outer carbon layer of triso-coated reactor fuel particles
    Patent number: 4227081
    Abstract: This invention relates to a method for determining defective final layers of carbon on triso-coated fuel particles and the like. Samples of the particles are subjected to a high temperature treatment with gaseous chlorine and thereafter radiographed. The chlorine penetrates through any defective carbon layer and reacts with the underlying silicon carbide resulting in the volatilization of the silicon as SiCl.sub.4 leaving carbon as a porous layer. This porous carbon layer is easily detected by the radiography.
    Type: Grant
    Filed: June 13, 1979
    Date of Patent: October 7, 1980
    Assignee: The United States of America as represented by the United States Department of Energy
    Inventors: Anthony J. Caputo, Dante A. Costanzo, Walter J. Lackey, Jr., Frank L. Layton, David P. Stinton