Patents by Inventor Ray JANSON

Ray JANSON 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).

  • Mullite shell systems for investment castings and methods
    Patent number: 11945024
    Abstract: A mullite shell mold for casting includes a facecoat layer containing ceramic flour. The mullite shell mold also includes a first layer disposed on the facecoat layer. The first layer can contain sintered ceramic media. The facecoat layer and the first layer can each contain less than 1 wt % crystalline silica.
    Type: Grant
    Filed: July 15, 2020
    Date of Patent: April 2, 2024
    Assignee: CARBO CERAMICS INC.
    Inventors: Ray Janson, Ryan Canfield
  • MULLITE SHELL SYSTEMS FOR INVESTMENT CASTINGS AND METHODS
    Publication number: 20220234095
    Abstract: A mullite shell mold for casting includes a facecoat layer containing ceramic flour. The mullite shell mold also includes a first layer disposed on the facecoat layer. The first layer can contain sintered ceramic media. The facecoat layer and the first layer can each contain less than 1 wt % crystalline silica.
    Type: Application
    Filed: July 15, 2020
    Publication date: July 28, 2022
    Inventors: Ray JANSON, Ryan CANFIELD