Patents by Inventor Joseph H. Kiefer

Joseph H. Kiefer 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).

  • Manual tube-to-tubesheet welding torch
    Patent number: 4357515
    Abstract: A welding torch made of a high temperature plastic which fits over a tube intermediate the ends thereof for welding the juncture between the tube and the back side of a tube plate and has a ballooned end in which an electrode, filler wire guide, fiber optic bundle, and blanketing gas duct are disposed.
    Type: Grant
    Filed: April 21, 1980
    Date of Patent: November 2, 1982
    Assignee: The United States of America as represented by the United States Department of Energy
    Inventors: Joseph H. Kiefer, Danny J. Smith
  • Method of automatically welding with a non-consumable electrode
    Patent number: 4350869
    Abstract: A method for maintaining a constant arc gap between the electrode and the weld puddle by controlling the addition of filler wire based on the arc voltage.
    Type: Grant
    Filed: August 6, 1980
    Date of Patent: September 21, 1982
    Assignee: The United States of America as represented by the United States Department of Energy
    Inventor: Joseph H. Kiefer