Patents by Inventor Nancy F. Levoy

Nancy F. Levoy 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).

  • REFRACTORY ARTICLES AND METHODS FOR FORMING SAME
    Publication number: 20220002206
    Abstract: A refractory article includes a body having a first portion defining at least a portion of a first exterior surface of the body, the first portion including a carbide, and further including a second portion defining at least a portion of a second exterior surface of the body opposite the first exterior surface, the second portion including an oxide, and a thermal conductivity difference (?TC) of at least 10 W/mK between the first exterior surface and the second exterior surface, and an average Shell Temperature of not greater than 400° C.
    Type: Application
    Filed: September 20, 2021
    Publication date: January 6, 2022
    Inventors: Julio Cesar T. SPADACCIA, Nancy F. LEVOY, Allan R. CASE, Craig J. IOZZO
  • Refractory articles and methods for forming same
    Patent number: 11155500
    Abstract: A refractory article includes a body having a first portion defining at least a portion of a first exterior surface of the body, the first portion including a carbide, and further including a second portion defining at least a portion of a second exterior surface of the body opposite the first exterior surface, the second portion including an oxide, and a thermal conductivity difference (?TC) of at least 10 W/mK between the first exterior surface and the second exterior surface, and an average Shell Temperature of not greater than 400° C.
    Type: Grant
    Filed: November 13, 2019
    Date of Patent: October 26, 2021
    Assignee: SAINT-GOBAIN CERAMICS & PLASTICS, INC.
    Inventors: Julio Cesar T. Spadaccia, Nancy F. Levoy, Allan R. Case, Craig J. Iozzo
  • REFRACTORY ARTICLES AND METHODS FOR FORMING SAME
    Publication number: 20200148597
    Abstract: A refractory article includes a body having a first portion defining at least a portion of a first exterior surface of the body, the first portion including a carbide, and further including a second portion defining at least a portion of a second exterior surface of the body opposite the first exterior surface, the second portion including an oxide, and a thermal conductivity difference (?TC) of at least 10 W/mK between the first exterior surface and the second exterior surface, and an average Shell Temperature of not greater than 400° C.
    Type: Application
    Filed: November 13, 2019
    Publication date: May 14, 2020
    Inventors: Julio Cesar T. SPADACCIA, Nancy F. LEVOY, Allan R. CASE, Craig J. IOZZO
  • Refractory articles and methods for forming same
    Patent number: 10093580
    Abstract: A refractory article can include a body including a content of alumina of at least 60 wt %, a content of silica of not greater than 20 wt %, a content of zirconia of not greater than 20 wt % for a total weight of the body. In a particular embodiment, the body includes a third phase including composite grains including mullite and zirconia. The third phase including the composite grains can be present within a range including at least 1 wt % and not greater than 35 wt % for a total weight of the body.
    Type: Grant
    Filed: July 31, 2017
    Date of Patent: October 9, 2018
    Assignee: SAINT-GOBAIN CERAMICS & PLASTICS, INC.
    Inventors: Allan R. Case, Edmund A. Cortellini, Hansong Huang, Melanie Kuhn, Nancy F. Levoy, Wesley S. Towle
  • REFRACTORY ARTICLES AND METHODS FOR FORMING SAME
    Publication number: 20180105467
    Abstract: A refractory article can include a body including a content of alumina of at least 60 wt %, a content of silica of not greater than 20 wt %, a content of zirconia of not greater than 20 wt % for a total weight of the body. In a particular embodiment, the body includes a third phase including composite grains including mullite and zirconia. The third phase including the composite grains can be present within a range including at least 1 wt % and not greater than 35 wt % for a total weight of the body.
    Type: Application
    Filed: July 31, 2017
    Publication date: April 19, 2018
    Inventors: Allan R. Case, Edmund A. Cortellini, Hansong Huang, Melanie Kuhn, Nancy F. Levoy, Wesley S. Towle
  • Refractory articles and methods for forming same
    Patent number: 9758434
    Abstract: A refractory article can include a body including a content of alumina of at least 60 wt %, a content of silica of not greater than 20 wt %, a content of zirconia of not greater than 20 wt % for a total weight of the body. In a particular embodiment, the body includes a third phase including composite grains including mullite and zirconia. The third phase including the composite grains can be present within a range including at least 1 wt % and not greater than 35 wt % for a total weight of the body.
    Type: Grant
    Filed: May 27, 2016
    Date of Patent: September 12, 2017
    Assignee: SAINT-GOBAIN CERAMICS & PLASTICS, INC.
    Inventors: Allan R. Case, Edmund A. Cortellini, Hansong Huang, Melanie Kuhn, Nancy F. Levoy, Wesley S. Towle
  • REFRACTORY ARTICLES AND METHODS FOR FORMING SAME
    Publication number: 20160347664
    Abstract: A refractory article can include a body including a content of alumina of at least 60 wt %, a content of silica of not greater than 20 wt %, a content of zirconia of not greater than 20 wt % for a total weight of the body. In a particular embodiment, the body includes a third phase including composite grains including mullite and zirconia. The third phase including the composite grains can be present within a range including at least 1 wt % and not greater than 35 wt % for a total weight of the body.
    Type: Application
    Filed: May 27, 2016
    Publication date: December 1, 2016
    Inventors: Allan R. Case, Edmund A. CORTELLINI, Hansong HUANG, Melanie KUHN, Nancy F. LEVOY, Wesley S. TOWLE
  • VOLUME-CHANGE RESISTANT SILICON OXY-NITRIDE OR SILICON OXY-NITRIDE AND SILICON NITRIDE BONDED SILICON CARBIDE REFRACTORY
    Publication number: 20090312173
    Abstract: A reaction sintered silicon carbide-based product, including a silicon carbide component, a bond component, wherein the bond component includes silicon oxynitride in excess of any silicon nitride of the bond component, and at least one boron component residual to an amount present prior to reaction sintering to cause increased resistance of the reaction sintered silicon carbide-based product to volume change under oxidative stress, and methods of making the same.
    Type: Application
    Filed: June 12, 2009
    Publication date: December 17, 2009
    Inventors: Nancy F. Levoy, Edmund A. Cortellini, Eric Jorge
  • Light weight, high strength beryllium-aluminum alloy
    Patent number: 5603780
    Abstract: A light weight, high strength ternary or higher-order cast beryllium-aluminum alloy, including approximately 60 to 70 weight % beryllium, one or both of from approximately 0.5 to 4 weight % silicon and from 0.2 to 4.25 weight % silver, with the balance aluminum. Beryllium strengthening elements selected from the group consisting of copper, nickel, or cobalt may be present at from 0.1 to 2.0 weight % of the alloy to increase the alloy strength.
    Type: Grant
    Filed: March 10, 1995
    Date of Patent: February 18, 1997
    Assignee: Nuclear Metals, Inc.
    Inventors: William T. Nachtrab, Nancy F. Levoy, Kevin R. Raftery
  • Light weight, high strength beryllium-aluminum alloy
    Patent number: 5421916
    Abstract: A light weight, high strength ternary or higher-order cast beryllium-aluminum alloy, including approximately 60 to 70 weight % beryllium, one or both of from approximately 0.5 to 4 weight % silicon and from 0.2 to 4.25 weight % silver, with the balance aluminum. Beryllium strengthening elements selected from the group consisting of copper, nickel, or cobalt may be present at from 0.1 to 0.75 weight % of the alloy to increase the alloy strength.
    Type: Grant
    Filed: September 3, 1993
    Date of Patent: June 6, 1995
    Assignee: Nuclear Metals, Inc.
    Inventors: William T. Nachtrab, Nancy F. Levoy, Kevin R. Raftery
  • Ductile, light weight, high strength beryllium-aluminum cast composite alloy
    Patent number: 5417778
    Abstract: A light weight, high strength quaternary or higher-order cast beryllium-aluminum alloy, including approximately 60 to 70 weight % beryllium, and from approximately 0.2 to 5 weight % germanium and from 0.2 to 4.25 weight % silver, with the balance aluminum. Beryllium strengthening elements selected from the group consisting of copper, nickel, or cobalt may be present at from 0.1 to 5.0 weight % of the alloy to increase the alloy strength.
    Type: Grant
    Filed: January 26, 1994
    Date of Patent: May 23, 1995
    Assignee: Nuclear Metals, Inc.
    Inventors: William T. Nachtrab, Nancy F. Levoy, Raymond L. White, III
  • High strength and ductile depleted uranium alloy
    Patent number: 5273711
    Abstract: A high strength and ductile depleted uranium alloy including two or three alloying elements, two of which are molybdenum and titanium, in which the total weight percent of all of the alloying elements makes up no more than 2% of the alloy weight, in which there is from 0.75 to 1.50 weight % molybdenum, and 0.30 to 0.70 weight % titanium.
    Type: Grant
    Filed: October 8, 1991
    Date of Patent: December 28, 1993
    Assignee: Nuclear Metals, Inc.
    Inventors: William T. Nachtrab, Nancy F. Levoy