Patents by Inventor Beverly Y. Lum

Beverly Y. Lum 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).

  • Combustion synthesis of low exothermic component rich composites
    Patent number: 4990180
    Abstract: A self-sustaining combustion synthesis process for producing hard, tough, lightweight, low exothermic potential product (LEPP)/high exothermic potential product (HEPP) composites is based on the thermodynamic dependence of adiabatic temperature and product composition on the stoichiometry of the LEPP and HEPP reactants. For lightweight products the composition must be relatively rich in the LEPP component. LEPP rich composites are obtained by varying the initial temperature of the reactants. The product is hard, porous material whose toughness can be enhanced by filling the pores with aluminum or other metal phases using a liquid metal infiltration process. The process can be extended to the formation of other composites having a low exothermic component.
    Type: Grant
    Filed: September 1, 1989
    Date of Patent: February 5, 1991
    Assignee: The United States of America as represented by the United States Department of Energy
    Inventors: Danny C. Halverson, Beverly Y. Lum, Zuhair A. Munir
  • Combustion synthesis of boride and other composites
    Patent number: 4879262
    Abstract: A self-sustaining combustion synthesis process for producing hard, tough, lightweight B.sub.4 C/TiB.sub.2 composites is based on the thermodynamic dependence of adiabatic temperature and product composition on the stoichiometry of the B.sub.4 C and TiB.sub.2 reactants. For lightweight products the composition must be relatively rich in the B.sub.4 C component. B.sub.4 C-rich composites are obtained by varying the initial temperature of the reactants. The product is hard, porous material whose toughness can be enhanced by filling the pores with aluminum or other metal phases using a liquid metal infiltration process. The process can be extended to the formation of other composites having a low exothermic component.
    Type: Grant
    Filed: July 28, 1988
    Date of Patent: November 7, 1989
    Assignee: The United States of America as represented by the United States Department of Energy
    Inventors: Danny C. Halverson, Beverly Y. Lum, Zuhair A. Munir