Patents by Inventor Danie Jacobus Dewet

Danie Jacobus Dewet 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).

  • Spallation-resistant multilayer thermal spray metal coatings
    Patent number: 9556506
    Abstract: A multilayer, wear- and corrosion-resistant coating on a metal substrate comprising a first metal coating layer comprising a composite carbide material; a second metal coating layer over the first metal coating layer comprising at least about 50 wt % of a metal selected from the group consisting of Co, Ni, and Fe; and a surface metal coating layer comprising a cemented carbide material having a third-layer carbide material and a third-layer Co-based or Ni-based binder material.
    Type: Grant
    Filed: November 18, 2013
    Date of Patent: January 31, 2017
    Assignee: KENNAMETAL INC.
    Inventors: David A. Lee, Heidi Lynette de Villiers-Lovelock, Danie Jacobus Dewet, James B. C. Wu
  • SPALLATION-RESISTANT MULTILAYER THERMAL SPRAY METAL COATINGS
    Publication number: 20140072821
    Abstract: A multilayer, wear- and corrosion-resistant coating on a metal substrate comprising a first metal coating layer comprising a composite carbide material; a second metal coating layer over the first metal coating layer comprising at least about 50 wt % of a metal selected from the group consisting of Co, Ni, and Fe; and a surface metal coating layer comprising a cemented carbide material having a third-layer carbide material and a third-layer Co-based or Ni-based binder material.
    Type: Application
    Filed: November 18, 2013
    Publication date: March 13, 2014
    Applicant: KENNAMETAL INC.
    Inventors: David A. Lee, Heidi Lynette de Villiers-Lovelock, Danie Jacobus Dewet, James B. C. Wu
  • Spallation-resistant multilayer thermal spray metal coatings
    Patent number: 8609196
    Abstract: A wear- and corrosion-resistance coating over a metal substrate having a first-layer carbide material, a second metal coating layer over the first metal coating layer, and a surface metal coating layer over the second metal coating layer; and thermal spray method for applying the coating.
    Type: Grant
    Filed: May 28, 2010
    Date of Patent: December 17, 2013
    Assignee: Kennametal Inc.
    Inventors: David A. Lee, Heidi Lynette de Villiers-Lovelock, Danie Jacobus Dewet, James B. C. Wu
  • SPALLATION-RESISTANT MULTILAYER THERMAL SPRAY METAL COATINGS
    Publication number: 20100316883
    Abstract: A wear- and corrosion-resistance coating over a metal substrate having a first-layer carbide material, a second metal coating layer over the first metal coating layer, and a surface metal coating layer over the second metal coating layer; and thermal spray method for applying the coating.
    Type: Application
    Filed: May 28, 2010
    Publication date: December 16, 2010
    Applicant: DELORO STELLITE HOLDINGS CORPORATION
    Inventors: David A. Lee, Heidi Lynette de Villiers-Lovelock, Danie Jacobus Dewet, James B. C. Wu