Patents by Inventor Didier DANGEUL

Didier DANGEUL 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 for forming a wax model for a turbine blade
    Patent number: 11717880
    Abstract: A method for forming a wax model for the manufacture of turbine blades by lost-wax casting, in which a core is provided, a lower surface shell and an upper surface shell are positioned and bonded on either side of ducts of the core adjacent to the root, the core equipped with the lower surface shell and with the upper surface shell is positioned in an injection mold, wax is injected around the core equipped with the lower surface shell and with the upper surface shell, so as to form a wax model including a blade airfoil and a blade root including a fir tree, the lower surface shell and the upper surface shell being positioned around the core so as to form a portion of the fir tree of the wax model.
    Type: Grant
    Filed: June 3, 2020
    Date of Patent: August 8, 2023
    Assignee: SAFRAN
    Inventors: Ramzi Bohli, Mirna Bechelany, Didier Dangeul, Didier Maurice Marceau Guerche, Alain Armel Le Hegarat, Ngadia Taha Niane
  • IMPROVED METHOD FOR FORMING A WAX MODEL FOR A TURBINE BLADE
    Publication number: 20220314304
    Abstract: A method for forming a wax model for the manufacture of turbine blades by lost-wax casting, in which a core is provided, a lower surface shell and an upper surface shell are positioned and bonded on either side of ducts of the core adjacent to the root, the core equipped with the lower surface shell and with the upper surface shell is positioned in an injection mold, wax is injected around the core equipped with the lower surface shell and with the upper surface shell, so as to form a wax model including a blade airfoil and a blade root including a fir tree, the lower surface shell and the upper surface shell being positioned around the core so as to form a portion of the fir tree of the wax model.
    Type: Application
    Filed: June 3, 2020
    Publication date: October 6, 2022
    Applicant: SAFRAN
    Inventors: Ramzi BOHLI, Mirna BECHELANY, Didier DANGEUL, Didier Maurice Marceau GUERCHE, Alain Armel LE HEGARAT, Ngadia Taha NIANE