Patents by Inventor Rodrigo Alejandro Cooper

Rodrigo Alejandro Cooper 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).

  • Publication number: 20190242013
    Abstract: In one aspect, articles are described comprising wear resistant coatings employing one or more composite refractory layers. For example, a coated article described herein comprises a substrate and a coating deposited by CVD adhered to the substrate, the coating including a multiphase refractory layer comprising an alumina phase and a zirconia phase, wherein the zirconia phase has a texture coefficient for the (200) growth direction, TC(200), greater than 4.
    Type: Application
    Filed: April 17, 2019
    Publication date: August 8, 2019
    Inventors: Rodrigo Alejandro Cooper, Karl Heinz Wendt, Peter Leicht, Bhaskar Alok, Yixiong Liu
  • Patent number: 10273575
    Abstract: In one aspect, articles are described comprising wear resistant coatings employing one or more composite refractory layers. For example, a coated article described herein comprises a substrate and a coating deposited by CVD adhered to the substrate, the coating including a multiphase refractory layer comprising an alumina phase and a zirconia phase, wherein the zirconia phase has a texture coefficient for the (200) growth direction, TC(200), greater than 4.
    Type: Grant
    Filed: August 31, 2016
    Date of Patent: April 30, 2019
    Assignee: KENNAMETAL INC.
    Inventors: Rodrigo Alejandro Cooper, Karl Heinz Wendt, Peter Leicht, Bhaskar Alok, Yixiong Liu
  • Publication number: 20180274091
    Abstract: CVD Alumina coating has been one of the most important materials for wear resistant application for many years. Recently, texture control in ?-Al2O3 has attracted increasing attention due to the possibility to further improve the anisotropic properties such as thermal conductivity and mechanical properties. The influence of process parameters on textures is complex. In the present application, the influence of nucleation surface condition and H2S on the texture in CVD ?-Al2O3 coatings has been investigated. It has been shown that without the addition of H2S, the crystal orientation in the Al2O3 coatings is primarily dominated by the nucleation surface condition, whereas the effect of reactant composition on texture is minimal. On the other hand, in the presence of H2S during growth, reactant composition also plays an important role in affecting the crystal orientation. This effect is likely due to the strong interaction between the Al2O3 surface and the H2S.
    Type: Application
    Filed: March 20, 2018
    Publication date: September 27, 2018
    Inventors: Chen Chen, Zhenyu LIU, Peter Rudolf LEICHT, Rodrigo Alejandro COOPER
  • Publication number: 20180057934
    Abstract: In one aspect, articles are described comprising wear resistant coatings employing one or more composite refractory layers. For example, a coated article described herein comprises a substrate and a coating deposited by CVD adhered to the substrate, the coating including a multiphase refractory layer comprising an alumina phase and a zirconia phase, wherein the zirconia phase has a texture coefficient for the (200) growth direction, TC(200), greater than 4.
    Type: Application
    Filed: August 31, 2016
    Publication date: March 1, 2018
    Inventors: Rodrigo Alejandro Cooper, Karl Heinz Wendt, Peter Leicht, Bhaskar Alok, Yixiong Liu
  • Patent number: 9650714
    Abstract: In one aspect, articles are described comprising refractory coatings employing nanocomposite architectures. Articles having such refractory coatings, in some embodiments, are suitable for high wear and/or abrasion applications such as metal cutting operations. A coated article described herein comprises a substrate and a coating deposited by CVD adhered to the substrate, the coating including a refractory layer having a matrix phase comprising alumina and a nanoparticle phase contained within the matrix phase, the nanoparticles phase comprising crystalline nanoparticles formed of at least one of a carbide, nitride or carbonitride of a Group IVB metal.
    Type: Grant
    Filed: December 8, 2014
    Date of Patent: May 16, 2017
    Assignee: KENNAMETAL INC.
    Inventors: Zhenyu Liu, Peter Rudolf Leicht, Rodrigo Alejandro Cooper, Yixiong Liu
  • Publication number: 20160160347
    Abstract: In one aspect, articles are described comprising refractory coatings employing nanocomposite architectures. Articles having such refractory coatings, in some embodiments, are suitable for high wear and/or abrasion applications such as metal cutting operations. A coated article described herein comprises a substrate and a coating deposited by CVD adhered to the substrate, the coating including a refractory layer having a matrix phase comprising alumina and a nanoparticle phase contained within the matrix phase, the nanoparticles phase comprising crystalline nanoparticles formed of at least one of a carbide, nitride or carbonitride of a Group IVB metal.
    Type: Application
    Filed: December 8, 2014
    Publication date: June 9, 2016
    Inventors: Zhenyu LIU, Peter Rudolf Leicht, Rodrigo Alejandro Cooper, Yixiong Liu
  • Patent number: 9181621
    Abstract: In one aspect, cutting tools are described having coatings adhered thereto which, in some embodiments, can demonstrate desirable wear resistance and increased cutting lifetimes. A coated cutting tool, in some embodiments, comprises a substrate and a coating adhered to the substrate, the coating comprising a polycrystalline layer of TiZrAl2O3.
    Type: Grant
    Filed: March 20, 2014
    Date of Patent: November 10, 2015
    Assignee: KENNAMETAL INC.
    Inventors: Zhenyu Liu, Peter Rudolf Leicht, Rodrigo Alejandro Cooper, Mark S. Greenfield, Yixiong Liu
  • Patent number: 9138864
    Abstract: In one aspect, coated cutting tools are described herein. A coated cutting tool described herein comprises a substrate and a coating adhered to the substrate, the coating comprising at least one composite layer deposited by chemical vapor deposition, the composite layer comprising an aluminum oxynitride phase, a metal oxide phase including zirconium oxide, a zirconium sulfur nitride phase and a metal oxynitride phase in addition to the aluminum oxynitride phase, the metal oxynitride phase comprising zirconium oxynitride.
    Type: Grant
    Filed: January 24, 2014
    Date of Patent: September 22, 2015
    Assignee: KENNAMETAL INC.
    Inventors: Karl Heinz Wendt, Volkmar Sottke, Rodrigo Alejandro Cooper, Peter Leicht, Yixiong Liu
  • Publication number: 20140287199
    Abstract: In one aspect, cutting tools are described having coatings adhered thereto which, in some embodiments, can demonstrate desirable wear resistance and increased cutting lifetimes. A coated cutting tool, in some embodiments, comprises a substrate and a coating adhered to the substrate, the coating comprising a polycrystalline layer of TiZrAl2O3.
    Type: Application
    Filed: March 20, 2014
    Publication date: September 25, 2014
    Applicant: Kennametal Inc.
    Inventors: Zhenyu Liu, Peter Rudolf Leicht, Rodrigo Alejandro Cooper, Mark S. Greenfield, Yixiong Liu
  • Publication number: 20140208662
    Abstract: In one aspect, coated cutting tools are described herein. A coated cutting tool described herein comprises a substrate and a coating adhered to the substrate, the coating comprising at least one composite layer deposited by chemical vapor deposition, the composite layer comprising an aluminum oxynitride phase, a metal oxide phase including zirconium oxide, a zirconium sulfur nitride phase and a metal oxynitride phase in addition to the aluminum oxynitride phase, the metal oxynitride phase comprising zirconium oxynitride.
    Type: Application
    Filed: January 24, 2014
    Publication date: July 31, 2014
    Applicant: Kennametal, Inc.
    Inventors: Karl Heinz Wendt, Volkmar Sottke, Rodrigo Alejandro Cooper, Peter Leicht, Yixiong Liu