Patents by Inventor Theodore C. Schmidt

Theodore C. Schmidt 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).

  • Method for forming patterns of brazing alloy
    Patent number: 4157154
    Abstract: Brazing alloy on detailed aluminum parts is formed in an exact pattern of the joints to be brazed. An aluminum sheet having brazing alloy coated on one or both sides (e.g., a brazing sheet) is plated with electroless nickel and electrolytic copper which are etched by use of a photoresist mask into a mask which outlines the pattern. The brazing alloy coating is then chemically milled to form the exact pattern of the joints. Parts are then assembled and dip brazed to form the completed brazed unit.
    Type: Grant
    Filed: November 21, 1977
    Date of Patent: June 5, 1979
    Assignee: Hughes Aircraft Company
    Inventors: James K. Scott, Theodore C. Schmidt