Patents by Inventor Michael J. Andrejcak

Michael J. Andrejcak 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: 20230227724
    Abstract: A thermal insulation material includes inorganic fibers and an endothermic material dispersed throughout the inorganic fibers. The endothermic material may be incorporated into the inorganic fibers during a fiber attenuation process. The endothermic material may be particles entangled within a web of the inorganic fibers or may be coated onto surfaces of the inorganic fibers.
    Type: Application
    Filed: March 20, 2023
    Publication date: July 20, 2023
    Inventors: Michael J. ANDREJCAK, Matthew R. GEISE, Kenneth B. MILLER
  • Publication number: 20220064071
    Abstract: An inorganic fiber containing silica, alumina, one or more alkali metal oxides, and one or more of alkaline earth metal oxides, transition metal oxides, or lanthanide series metal oxides. The inorganic fiber exhibits good thermal performance at use temperatures of 1260° C. and greater, retains mechanical integrity after exposure to the use temperatures, is free of crystalline silica upon devitrification, is alkali flux resistant, exhibits low bio-persistence in an acidic medium, and exhibits low dissolution in a neutral medium. Also provided are thermal insulation products incorporating the inorganic fibers, a method for preparing the inorganic fiber and a method of thermally insulating articles using thermal insulation prepared from the inorganic fibers.
    Type: Application
    Filed: November 9, 2021
    Publication date: March 3, 2022
    Inventors: Donghui ZHAO, Bruce K. ZOITOS, Michael J. ANDREJCAK, Jason M. HAMILTON, Karen L. HANSON
  • Patent number: 11203551
    Abstract: An inorganic fiber containing silica, alumina, one or more alkali metal oxides, and one or more of alkaline earth metal oxides, transition metal oxides, or lanthanide series metal oxides. The inorganic fiber exhibits good thermal performance at use temperatures of 1260° C. and greater, retains mechanical integrity after exposure to the use temperatures, is free of crystalline silica upon devitrification, is alkali flux resistant, exhibits low bio-persistence in an acidic medium, and exhibits low dissolution in a neutral medium. Also provided are thermal insulation products incorporating the inorganic fibers, a method for preparing the inorganic fiber and a method of thermally insulating articles using thermal insulation prepared from the inorganic fibers.
    Type: Grant
    Filed: October 5, 2018
    Date of Patent: December 21, 2021
    Assignee: UNIFRAX I LLC
    Inventors: Donghui Zhao, Bruce K. Zoitos, Michael J. Andrejcak, Jason M. Hamilton, Karen L. Hanson
  • Publication number: 20210155526
    Abstract: A method of producing fibers includes exposing an inorganic composition to a plasma plume, where the plasma plume has a temperature of at least 1500° C. and a bulk velocity of at least 350 m/s. A system for producing fibers includes a plasma torch to produce the plasma plume and a feeding device to introduce the inorganic composition to the plasma plume.
    Type: Application
    Filed: July 14, 2020
    Publication date: May 27, 2021
    Inventors: Chad D. CANNAN, Mauricio Munhoz DE SOUZA, Michael J. ANDREJCAK, Dillan R. SAYERS, Jeffrey RIPSON, Mark TRAVERS
  • Publication number: 20210078898
    Abstract: An inorganic fiber containing a fiberization product of a compound comprising at least one alkaline earth silicate, at least one compound containing an element from group VII and/or IX of the periodic table, and optionally alumina and/or boria. The inclusion of a suitable amount of at least one compound containing an element from group VII and/or IX of the periodic table of elements to an alkaline-earth silicate inorganic fiber reduces fiber shrinkage, decreases biopersistence in physiological solutions, and enhances mechanical strength beyond that of alkaline earth silicate fibers without the presence of the at least one compound containing an element from group VII and/or IX. Also provided are methods of preparing the inorganic fiber and of thermally insulating articles using thermal insulation prepared from the inorganic fibers.
    Type: Application
    Filed: November 25, 2020
    Publication date: March 18, 2021
    Inventors: Donghui ZHAO, Bruce K. ZOITOS, Michael J. ANDREJCAK, Jason M. HAMILTON
  • Patent number: 10882779
    Abstract: An inorganic fiber containing a fiberization product of a compound comprising at least one alkaline earth silicate, at least one compound containing an element from group VII and/or IX of the periodic table, and optionally alumina and/or boria. The inclusion of a suitable amount of at least one compound containing an element from group VII and/or IX of the periodic table of elements to an alkaline-earth silicate inorganic fiber reduces fiber shrinkage, decreases biopersistence in physiological solutions, and enhances mechanical strength beyond that of alkaline earth silicate fibers without the presence of the at least one compound containing an element from group VII and/or IX. Also provided are methods of preparing the inorganic fiber and of thermally insulating articles using thermal insulation prepared from the inorganic fibers.
    Type: Grant
    Filed: May 25, 2018
    Date of Patent: January 5, 2021
    Assignee: UNIFRAX I LLC
    Inventors: Donghui Zhao, Bruce K. Zoitos, Michael J. Andrejcak, Jason M. Hamilton
  • Publication number: 20190360630
    Abstract: An inorganic fiber containing a fiberization product of a compound comprising at least one alkaline earth silicate, at least one compound containing an element from group VII and/or IX of the periodic table, and optionally alumina and/or boria. The inclusion of a suitable amount of at least one compound containing an element from group VII and/or IX of the periodic table of elements to an alkaline-earth silicate inorganic fiber reduces fiber shrinkage, decreases biopersistence in physiological solutions, and enhances mechanical strength beyond that of alkaline earth silicate fibers without the presence of the at least one compound containing an element from group VII and/or IX. Also provided are methods of preparing the inorganic fiber and of thermally insulating articles using thermal insulation prepared from the inorganic fibers.
    Type: Application
    Filed: May 25, 2018
    Publication date: November 28, 2019
    Inventors: Donghui ZHAO, Bruce K. ZOITOS, Michael J. ANDREJCAK, Jason M. HAMILTON
  • Patent number: 10301213
    Abstract: An inorganic fiber containing silica and magnesia as the major fiber components and which further includes intended addition of lithium oxide to improve the thermal stability of the fiber. The inorganic fiber exhibits good thermal performance at 1260° C. and greater, low linear shrinkage, retains mechanical integrity after exposure to the use temperature, and exhibits low biopersistence in physiological fluids. Also provided are thermal insulation product forms prepared from a plurality of the inorganic fibers, methods of preparing the inorganic fiber and of thermally insulating articles using thermal insulation prepared from a plurality of the inorganic fibers.
    Type: Grant
    Filed: June 28, 2017
    Date of Patent: May 28, 2019
    Assignee: Unifrax I LLC
    Inventors: Donghui Zhao, Bruce K. Zoitos, Michael J. Andrejcak, Jason M. Hamilton
  • Publication number: 20190106359
    Abstract: An inorganic fiber containing silica, alumina, one or more alkali metal oxides, and one or more of alkaline earth metal oxides, transition metal oxides, or lanthanide series metal oxides. The inorganic fiber exhibits good thermal performance at use temperatures of 1260° C. and greater, retains mechanical integrity after exposure to the use temperatures, is free of crystalline silica upon devitrification, is alkali flux resistant, exhibits low bio-persistence in an acidic medium, and exhibits low dissolution in a neutral medium. Also provided are thermal insulation products incorporating the inorganic fibers, a method for preparing the inorganic fiber and a method of thermally insulating articles using thermal insulation prepared from the inorganic fibers.
    Type: Application
    Filed: October 5, 2018
    Publication date: April 11, 2019
    Inventors: Donghui Zhao, Bruce K. Zoitos, Michael J. Andrejcak, Jason M. Hamilton, Karen L. Hanson
  • Patent number: 10023491
    Abstract: An inorganic fiber containing silica and magnesia as the major fiber components which further includes intended synergistic amounts of calcia and, an additional alkali metal oxide other than magnesia, such as lithium oxide, to improve the thermal performance and manufacturability of the fiber. The inorganic fiber is easier to manufacture, has a better fiber quality, exhibits good thermal performance at a use temperature of 1260° C. and greater, retains mechanical integrity after exposure to the use temperature, and exhibits low biopersistence in physiological fluids. Also provided are methods of preparing the inorganic fiber and of thermally insulating articles using thermal insulation prepared from the inorganic fibers.
    Type: Grant
    Filed: January 19, 2017
    Date of Patent: July 17, 2018
    Assignee: Unifrax I LLC
    Inventors: Donghui Zhao, Bruce K. Zoitos, Jason M. Hamilton, Michael J. Andrejcak, Karen L. Hanson
  • Patent number: 9926224
    Abstract: An inorganic fiber containing silica and magnesia as the major fiber components which further includes an intended strontium oxide additive to improve the thermal stability of the fiber. The inorganic fiber exhibits good thermal performance at 1260° C. and greater for 24 hours or more, retains mechanical integrity after exposure to the use temperature, and exhibits low biopersistence in physiological fluids. Also provided are thermal insulation product forms, methods of preparing the inorganic fiber and of thermally insulating articles using thermal insulation prepared from a plurality of the inorganic fibers.
    Type: Grant
    Filed: January 16, 2017
    Date of Patent: March 27, 2018
    Assignee: Unifrax I LLC
    Inventors: Donghui Zhao, Bruce K. Zoitos, Michael J. Andrejcak, Jason M. Hamilton
  • Patent number: 9919954
    Abstract: An inorganic fiber containing silica and magnesia as the major fiber components and which further includes an intended iron oxide additive to improve the dimensional stability of the fiber. The inorganic fiber exhibits good thermal insulation performance at 1400° C. and greater, retains mechanical integrity after exposure to the use temperature, and which remains non-durable in physiological fluids. Also provided are thermal insulation product forms comprising a plurality of the inorganic fibers, methods of preparing the inorganic fiber and of thermally insulating articles using thermal insulation prepared from a plurality of the inorganic fibers.
    Type: Grant
    Filed: January 16, 2017
    Date of Patent: March 20, 2018
    Assignee: UNIFRAX I LLC
    Inventors: Bruce K. Zoitos, Michael J. Andrejcak
  • Patent number: 9919957
    Abstract: An inorganic fiber containing silica and magnesia as the major fiber components and which further includes an intended chromium oxide additive to improve the dimensional stability of the fiber. The inorganic fiber exhibits good thermal insulation performance at 1400° C. and greater, retains mechanical integrity after exposure to the use temperature, and which remains soluble in physiological fluids. Also provided are thermal insulation product forms that are made from a plurality of the inorganic fibers, methods of preparing the inorganic fiber, and methods of thermally insulating articles using thermal insulation prepared from a plurality of the inorganic fibers.
    Type: Grant
    Filed: January 16, 2017
    Date of Patent: March 20, 2018
    Assignee: Unifrax I LLC
    Inventors: Donghui Zhao, Bruce K. Zoitos, Michael J. Andrejcak, Jason M. Hamilton
  • Publication number: 20170297951
    Abstract: An inorganic fiber containing silica and magnesia as the major fiber components and which further includes intended addition of lithium oxide to improve the thermal stability of the fiber. The inorganic fiber exhibits good thermal performance at 1260° C. and greater, low linear shrinkage, retains mechanical integrity after exposure to the use temperature, and exhibits low biopersistence in physiological fluids. Also provided are thermal insulation product forms prepared from a plurality of the inorganic fibers, methods of preparing the inorganic fiber and of thermally insulating articles using thermal insulation prepared from a plurality of the inorganic fibers.
    Type: Application
    Filed: June 28, 2017
    Publication date: October 19, 2017
    Inventors: Donghui ZHAO, Bruce K. Zoitos, Michael J. Andrejcak, Jason M. HAMILTON
  • Publication number: 20170204537
    Abstract: An inorganic fiber containing silica and magnesia as the major fiber components and which further includes an intended chromium oxide additive to improve the dimensional stability of the fiber. The inorganic fiber exhibits good thermal insulation performance at 1400° C. and greater, retains mechanical integrity after exposure to the use temperature, and which remains soluble in physiological fluids. Also provided are thermal insulation product forms that are made from a plurality of the inorganic fibers, methods of preparing the inorganic fiber, and methods of thermally insulating articles using thermal insulation prepared from a plurality of the inorganic fibers.
    Type: Application
    Filed: January 16, 2017
    Publication date: July 20, 2017
    Inventors: Donghui Zhao, Bruce K. Zoitos, Michael J. Andrejcak, Jason M. Hamilton
  • Publication number: 20170203999
    Abstract: An inorganic fiber containing silica and magnesia as the major fiber components which further includes intended synergistic amounts of calcia and, an additional alkali metal oxide other than magnesia, such as lithium oxide, to improve the thermal performance and manufacturability of the fiber. The inorganic fiber is easier to manufacture, has a better fiber quality, exhibits good thermal performance at a use temperature of 1260° C. and greater, retains mechanical integrity after exposure to the use temperature, and exhibits low biopersistence in physiological fluids. Also provided are methods of preparing the inorganic fiber and of thermally insulating articles using thermal insulation prepared from the inorganic fibers.
    Type: Application
    Filed: January 19, 2017
    Publication date: July 20, 2017
    Inventors: Donghui ZHAO, Bruce K. Zoitos, Jason M. HAMILTON, Michael J. Andrejcak, Karen L. Hanson
  • Patent number: 9708214
    Abstract: An inorganic fiber containing silica and magnesia as the major fiber components and which further includes intended addition of lithium oxide to improve the thermal stability of the fiber. The inorganic fiber exhibits good thermal performance at 1260° C. and greater, low linear shrinkage, retains mechanical integrity after exposure to the use temperature, and exhibits low biopersistence in physiological fluids. Also provided are thermal insulation product forms prepared from a plurality of the inorganic fibers, methods of preparing the inorganic fiber and of thermally insulating articles using thermal insulation prepared from a plurality of the inorganic fibers.
    Type: Grant
    Filed: December 23, 2014
    Date of Patent: July 18, 2017
    Assignee: Unifrax I LLC
    Inventors: Donghui Zhao, Bruce K. Zoitos, Michael J. Andrejcak, Jason M. Hamilton
  • Publication number: 20170121862
    Abstract: An inorganic fiber containing silica and magnesia as the major fiber components which further includes an intended strontium oxide additive to improve the thermal stability of the fiber. The inorganic fiber exhibits good thermal performance at 1260° C. and greater for 24 hours or more, retains mechanical integrity after exposure to the use temperature, and exhibits low biopersistence in physiological fluids. Also provided are thermal insulation product forms, methods of preparing the inorganic fiber and of thermally insulating articles using thermal insulation prepared from a plurality of the inorganic fibers.
    Type: Application
    Filed: January 16, 2017
    Publication date: May 4, 2017
    Inventors: Donghui ZHAO, Bruce K. Zoitos, Michael J. Andrejcak, Jason M. HAMILTON
  • Publication number: 20170121861
    Abstract: An inorganic fiber containing silica and magnesia as the major fiber components and which further includes an intended iron oxide additive to improve the dimensional stability of the fiber. The inorganic fiber exhibits good thermal insulation performance at 1400° C. and greater, retains mechanical integrity after exposure to the use temperature, and which remains non-durable in physiological fluids. Also provided are thermal insulation product forms comprising a plurality of the inorganic fibers, methods of preparing the inorganic fiber and of thermally insulating articles using thermal insulation prepared from a plurality of the inorganic fibers.
    Type: Application
    Filed: January 16, 2017
    Publication date: May 4, 2017
    Inventors: Bruce K. Zoitos, Michael J. Andrejcak
  • Patent number: 9567256
    Abstract: An inorganic fiber containing silica and magnesia as the major fiber components and which further includes an intended iron oxide additive to improve the dimensional stability of the fiber. The inorganic fiber exhibits good thermal insulation performance at 1400° C. and greater, retains mechanical integrity after exposure to the use temperature, and which remains non-durable in physiological fluids. Also provided are thermal insulation product forms comprising a plurality of the inorganic fibers, methods of preparing the inorganic fiber and of thermally insulating articles using thermal insulation prepared from a plurality of the inorganic fibers.
    Type: Grant
    Filed: March 14, 2014
    Date of Patent: February 14, 2017
    Assignee: Unifrax I LLC
    Inventors: Bruce K. Zoitos, Michael J. Andrejcak