Patents by Inventor Benjamin WEIDEHOFF

Benjamin WEIDEHOFF 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).

  • Publication number: 20190264980
    Abstract: A ceramic crucible having an Al2TiO5 body with face layers of non-reactive ceramic and a method of making the crucible. The ceramic crucible is made by utilizing a plaster mold and forming a crucible body as backing material in the plaster mold with a slurry. The slurry is fired to form the crucible body of aluminum titanate. Non-reactive ceramic slurry is applied to the interior of the crucible body to a predetermined thickness, wetting the crucible body and then fired forming a non-reactive layer as the interior surface of the ceramic crucible. The non-reactive layer forming the interior surface of the ceramic crucible is more dense than non-reactive layers in prior art crucibles. The dense non-reactive layer forms a stronger bond with the crucible body, reducing the potential for delamination of the non-reactive layer when a reactive alloy is melted in the crucible by vacuum induction melting.
    Type: Application
    Filed: February 26, 2018
    Publication date: August 29, 2019
    Inventors: Benjamin WEIDEHOFF, Michael LIEBL