Patents by Inventor Warren H. Giedt

Warren H. Giedt 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 of automatic measurement and focus of an electron beam and apparatus therefor
    Patent number: 5483036
    Abstract: An electron beam focusing system, including a plural slit-type Faraday beam trap, for measuring the diameter of an electron beam and automatically focusing the beam for welding. Beam size is determined from profiles of the current measured as the beam is swept over at least two narrow slits of the beam trap. An automated procedure changes the focus coil current until the focal point location is just below a workpiece surface. A parabolic equation is fitted to the calculated beam sizes from which optimal focus coil current and optimal beam diameter are determined.
    Type: Grant
    Filed: October 28, 1993
    Date of Patent: January 9, 1996
    Assignee: Sandia Corporation
    Inventors: Warren H. Giedt, Richard Campiotti