Patents by Inventor John B. Rajan

John B. Rajan 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).

  • Process for direct conversion of reactive metals to glass
    Patent number: 4898692
    Abstract: Radioactive alkali metal is introduced into a cyclone reactor in droplet form by an aspirating gas. In the cyclone metal reactor the aspirated alkali metal is contacted with silica powder introduced in an air stream to form in one step a glass. The sides of the cyclone reactor are preheated to ensure that the initial glass formed coats the side of the reactor forming a protective coating against the reactants which are maintained in excess of 1000.degree. C. to ensure the formation of glass in a single step.
    Type: Grant
    Filed: November 16, 1988
    Date of Patent: February 6, 1990
    Assignee: The United States of America as represented by the United States Department of Energy
    Inventors: John B. Rajan, Romesh Kumar, Donald R. Vissers