Patents by Inventor Richard B. Landrigan

Richard B. Landrigan 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).

  • Vapor deposition of hardened niobium
    Patent number: 4380556
    Abstract: A method of coating ceramic nuclear fuel particles containing a major amount of an actinide ceramic in which the particles are placed in a fluidized bed maintained at ca. 800.degree. to ca. 900.degree. C., and niobium pentachloride vapor and carbon tetrachloride vapor are led into the bed, whereby niobium metal is deposited on the particles and carbon is deposited interstitially within the niobium. Coating apparatus used in the method is also disclosed.
    Type: Grant
    Filed: January 3, 1964
    Date of Patent: April 19, 1983
    Assignee: The United States of America as represented by the United States Department of Energy
    Inventors: John M. Blocher, Jr., Neil D. Veigel, Richard B. Landrigan