Patents by Inventor Charles Schiltz

Charles Schiltz 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 and means for metal sizing employing thermal expansion and contraction
    Patent number: 4989433
    Abstract: An improved method and means for sizing metal configuration through the application of thermal expansion and contraction of a shaping mandrel. The thermally induced changes in the shaping mandrel are produced from within the body at the mandrel.
    Type: Grant
    Filed: February 28, 1989
    Date of Patent: February 5, 1991
    Inventors: John L. Harmon, Charles Schiltz, Gerald W. McKenzie