Patents by Inventor Charles A. Youngberg

Charles A. Youngberg 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).

  • Welding helmets with auxiliary optical vision systems
    Patent number: 4523808
    Abstract: A welding helmet with welder's glass includes one or more reducing auxiliary vision systems providing viewing of areas which would otherwise be blocked by opaque portions of the welding helmet.
    Type: Grant
    Filed: July 12, 1983
    Date of Patent: June 18, 1985
    Assignee: Wilson Sales Company, Inc.
    Inventors: Charles G. Miller, deceased, James B. Stephens, Charles Youngberg
  • Precombustion conditioning device for internal combustion engines
    Patent number: 3963408
    Abstract: A precombustion conditioning device for gasoline fired internal combustion engines comprising at least one cupped or dished foraminous member disposed across the fuel-air intake passageway of the engine between the carburetor and fuel-air inlet of the engine, and mounted in a carrier formed from an electrically insulating material that also carries an electrogenetic direct current power surce, with the foraminous member being electrically connected to the positive terminal of the direct current power source and the negative terminal of the power source being connected to the engine and hence the inside wall of the intake manifold.
    Type: Grant
    Filed: April 29, 1975
    Date of Patent: June 15, 1976
    Assignee: F. D. Farnum Co.
    Inventor: Charles A. Youngberg