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).
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Publication number: 20230227724Abstract: 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: ApplicationFiled: March 20, 2023Publication date: July 20, 2023Inventors: Michael J. ANDREJCAK, Matthew R. GEISE, Kenneth B. MILLER
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Publication number: 20220064071Abstract: 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: ApplicationFiled: November 9, 2021Publication date: March 3, 2022Inventors: Donghui ZHAO, Bruce K. ZOITOS, Michael J. ANDREJCAK, Jason M. HAMILTON, Karen L. HANSON
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Patent number: 11203551Abstract: 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: GrantFiled: October 5, 2018Date of Patent: December 21, 2021Assignee: UNIFRAX I LLCInventors: Donghui Zhao, Bruce K. Zoitos, Michael J. Andrejcak, Jason M. Hamilton, Karen L. Hanson
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Publication number: 20210155526Abstract: 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: ApplicationFiled: July 14, 2020Publication date: May 27, 2021Inventors: Chad D. CANNAN, Mauricio Munhoz DE SOUZA, Michael J. ANDREJCAK, Dillan R. SAYERS, Jeffrey RIPSON, Mark TRAVERS
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Publication number: 20210078898Abstract: 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: ApplicationFiled: November 25, 2020Publication date: March 18, 2021Inventors: Donghui ZHAO, Bruce K. ZOITOS, Michael J. ANDREJCAK, Jason M. HAMILTON
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Patent number: 10882779Abstract: 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: GrantFiled: May 25, 2018Date of Patent: January 5, 2021Assignee: UNIFRAX I LLCInventors: Donghui Zhao, Bruce K. Zoitos, Michael J. Andrejcak, Jason M. Hamilton
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Publication number: 20190360630Abstract: 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: ApplicationFiled: May 25, 2018Publication date: November 28, 2019Inventors: Donghui ZHAO, Bruce K. ZOITOS, Michael J. ANDREJCAK, Jason M. HAMILTON
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Patent number: 10301213Abstract: 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: GrantFiled: June 28, 2017Date of Patent: May 28, 2019Assignee: Unifrax I LLCInventors: Donghui Zhao, Bruce K. Zoitos, Michael J. Andrejcak, Jason M. Hamilton
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Publication number: 20190106359Abstract: 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: ApplicationFiled: October 5, 2018Publication date: April 11, 2019Inventors: Donghui Zhao, Bruce K. Zoitos, Michael J. Andrejcak, Jason M. Hamilton, Karen L. Hanson
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Patent number: 10023491Abstract: 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: GrantFiled: January 19, 2017Date of Patent: July 17, 2018Assignee: Unifrax I LLCInventors: Donghui Zhao, Bruce K. Zoitos, Jason M. Hamilton, Michael J. Andrejcak, Karen L. Hanson
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Patent number: 9926224Abstract: 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: GrantFiled: January 16, 2017Date of Patent: March 27, 2018Assignee: Unifrax I LLCInventors: Donghui Zhao, Bruce K. Zoitos, Michael J. Andrejcak, Jason M. Hamilton
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Patent number: 9919954Abstract: 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: GrantFiled: January 16, 2017Date of Patent: March 20, 2018Assignee: UNIFRAX I LLCInventors: Bruce K. Zoitos, Michael J. Andrejcak
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Patent number: 9919957Abstract: 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: GrantFiled: January 16, 2017Date of Patent: March 20, 2018Assignee: Unifrax I LLCInventors: Donghui Zhao, Bruce K. Zoitos, Michael J. Andrejcak, Jason M. Hamilton
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Publication number: 20170297951Abstract: 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: ApplicationFiled: June 28, 2017Publication date: October 19, 2017Inventors: Donghui ZHAO, Bruce K. Zoitos, Michael J. Andrejcak, Jason M. HAMILTON
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Publication number: 20170204537Abstract: 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: ApplicationFiled: January 16, 2017Publication date: July 20, 2017Inventors: Donghui Zhao, Bruce K. Zoitos, Michael J. Andrejcak, Jason M. Hamilton
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Publication number: 20170203999Abstract: 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: ApplicationFiled: January 19, 2017Publication date: July 20, 2017Inventors: Donghui ZHAO, Bruce K. Zoitos, Jason M. HAMILTON, Michael J. Andrejcak, Karen L. Hanson
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Patent number: 9708214Abstract: 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: GrantFiled: December 23, 2014Date of Patent: July 18, 2017Assignee: Unifrax I LLCInventors: Donghui Zhao, Bruce K. Zoitos, Michael J. Andrejcak, Jason M. Hamilton
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Publication number: 20170121862Abstract: 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: ApplicationFiled: January 16, 2017Publication date: May 4, 2017Inventors: Donghui ZHAO, Bruce K. Zoitos, Michael J. Andrejcak, Jason M. HAMILTON
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Publication number: 20170121861Abstract: 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: ApplicationFiled: January 16, 2017Publication date: May 4, 2017Inventors: Bruce K. Zoitos, Michael J. Andrejcak
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Patent number: 9567256Abstract: 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: GrantFiled: March 14, 2014Date of Patent: February 14, 2017Assignee: Unifrax I LLCInventors: Bruce K. Zoitos, Michael J. Andrejcak