Patents by Inventor Maria IVERMARK

Maria IVERMARK 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).

  • Patent number: 11932579
    Abstract: A process of manufacturing a chromium alloyed molybdenum silicide portion of a heating element comprising the steps of: forming a mixture of a chromium powder and a silicon powder; reacting the mixture to a reaction product in an inert atmosphere at a temperature of at least 1100° C. but not more than 1580° C.; converting the reaction product to a powder comprising CrSi2; forming a powder ceramic composition by mixing the powder comprising CrSi2 with a MoSi2 powder and optionally with an extrusion aid; forming the portion of the heating element; and sintering the portion of the heating element in a temperature of from about 1450° C. to about 1700° C.; characterized in that the chromium powder and the silicon powder are provided separately to the mixture.
    Type: Grant
    Filed: November 15, 2019
    Date of Patent: March 19, 2024
    Assignee: Kanthal AB
    Inventors: Erik Ström, Maria Ivermark
  • Publication number: 20210403386
    Abstract: A process of manufacturing a chromium alloyed molybdenum silicide portion of a heating element comprising the steps of: forming a mixture of a chromium powder and a silicon powder; reacting the mixture to a reaction product in an inert atmosphere at a temperature of at least 1100° C. but not more than 1580° C.; converting the reaction product to a powder comprising CrSi2; forming a powder ceramic composition by mixing the powder comprising CrSi2 with a MoSi2 powder and optionally with an extrusion aid; forming the portion of the heating element; and sintering the portion of the heating element in a temperature of from about 1450° C. to about 1700° C.; characterized in that the chromium powder and the silicon powder are provided separately to the mixture.
    Type: Application
    Filed: November 15, 2019
    Publication date: December 30, 2021
    Applicant: KANTHAL AB
    Inventors: Erik STRÖM, Maria IVERMARK