Patents by Inventor Wen Marie Gérard ZHANG

Wen Marie Gérard ZHANG 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).

  • PROCESS FOR MANUFACTURING A SHELL MOLD
    Publication number: 20190329317
    Abstract: The invention concerns a method of manufacturing a shell mould (1) with several layers (2, 3, 4, 5), including at least one contact layer (2), from a model (6) of wax or other similar material of a part to be manufactured, the method comprising a step of dipping the model (6) into a contact slip forming the contact layer (2) and comprising an inorganic or organic binder and a powder, wherein the powder is a mullite-zirconia composite.
    Type: Application
    Filed: July 21, 2017
    Publication date: October 31, 2019
    Inventors: Wen Marie Gérard ZHANG, Patrice Henri Claude RAGOT