Patents by Inventor Albert C. Hopper, Jr.

Albert C. Hopper, Jr. 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).

  • Direct metal brazing to cermet feedthroughs
    Patent number: 4488673
    Abstract: An improved method for brazing metallic components to a cermet surface in an alumina substrate eliminates the prior art metallized layer over the cermet via and adjoining alumina surfaces. Instead, a nickel layer is applied over the cermet surface only and metallic components are brazed directly to this nickel coated cermet surface. As a result, heretofore unachievable tensile strength joints are produced. In addition, cermet vias with their brazed metal components can be spaced more closely in the alumina substrate because of the elimination of the prior art metallized alumina surfaces.
    Type: Grant
    Filed: July 29, 1982
    Date of Patent: December 18, 1984
    Assignee: The United States of America as represented by the United States Department of Energy
    Inventor: Albert C. Hopper, Jr.