Patents by Inventor John L. Brimhall

John L. Brimhall 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).

  • Joined ceramic product
    Patent number: 6277493
    Abstract: According to the present invention, a joined product is at least two ceramic parts, specifically bi-element carbide parts with a bond joint therebetween, wherein the bond joint has a metal silicon phase. The bi-element carbide refers to compounds of MC, M2C, M4C and combinations thereof, where M is a first element and C is carbon. The metal silicon phase may be a metal silicon carbide ternary phase, or a metal silicide.
    Type: Grant
    Filed: February 25, 1999
    Date of Patent: August 21, 2001
    Assignee: Battelle Memorial Institute
    Inventors: Charles H. Henager, Jr., John L. Brimhall
  • Method of joining ceramics
    Patent number: 6165301
    Abstract: According to the method of the present invention, joining a first bi-element carbide to a second bi-element carbide, has the steps of: (a) forming a bond agent containing a metal carbide and silicon; (b) placing the bond agent between the first and second bi-element carbides to form a pre-assembly; and (c) pressing and heating the pre-assembly in a non-oxidizing atmosphere to a temperature effective to induce a displacement reaction creating a metal silicon phase bonding the first and second bi-element carbides.
    Type: Grant
    Filed: February 25, 1999
    Date of Patent: December 26, 2000
    Assignee: Battelle Memorial Institute
    Inventors: Charles H. Henager, Jr., John L. Brimhall