Patents by Inventor Doug C. Stahl

Doug C. Stahl 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).

  • Casting process
    Patent number: 8312913
    Abstract: A method of casting including coating at least a portion of a mold with a non-porous coating, placing the mold in a chamber capable of inducing pressure, and applying pressure to the chamber to press material into a cavity in the mold. Another method of casting including coating at least a portion of a mold with a non-porous coating, placing a first fill tube in a material, applying a vacuum to a second fill tube to establish a vacuum within the non-porous coating, and allowing atmospheric pressure to inject the material into the mold without placing the mold in a chamber capable of inducing pressure.
    Type: Grant
    Filed: February 22, 2006
    Date of Patent: November 20, 2012
    Assignee: Milwaukee School of Engineering
    Inventors: Vito R. Gervasi, Adam J. Schneider, Josh Rocholl, Doug C. Stahl