Patents by Inventor Robert A. Harger

Robert A. Harger 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).

  • Solder thickness measurement method and apparatus
    Patent number: 4745684
    Abstract: A carrier (36) brings a probe (42) down to the solder surface (28) and a base measurement is taken. The solder is heated to melt the solder and the probe moves down through the liquid solder to the next solid therebelow, and a second position measurement is taken. The base measurement is subtracted therefrom to yield the solder thickness.
    Type: Grant
    Filed: December 17, 1986
    Date of Patent: May 24, 1988
    Assignee: Hughes Aircraft Company
    Inventors: Kerry L. Brown, Robert A. Harger