Patents by Inventor Douglas K. Doza
Douglas K. Doza 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: 20190360751Abstract: A reinforced refractory container having a cast refractory container which includes a sidewall defining an interior volume, the sidewall having inner and outer surfaces, the container cast from a castable refractory composition, and a wound, continuous fiber tensile reinforcement structure integrated with the container sidewall. A method of fabricating the reinforced refractory container is also provided.Type: ApplicationFiled: August 8, 2019Publication date: November 28, 2019Inventors: Dana G. Goski, Douglas K. Doza, Anthony S. DiSaia, Duncan Lawrie
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Patent number: 10378823Abstract: A reinforced refractory container having a cast refractory container which includes a sidewall defining an interior volume, the sidewall having inner and outer surfaces, the container cast from a castable refractory composition, and a wound, continuous fiber tensile reinforcement structure integrated with the container sidewall. A method of fabricating the reinforced refractory container is also provided.Type: GrantFiled: August 1, 2013Date of Patent: August 13, 2019Assignee: ALLIED MINERAL PRODUCTS, INC.Inventors: Dana G. Goski, Douglas K. Doza, Anthony S. DiSaia, Duncan Lawrie
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Patent number: 9695088Abstract: A monolithic refractory castable material comprises from about 25 to about 80 weight percent of graphite, from about 1 to about 15 weight percent of a water dispersible, curable phenolic novolac resin, and from about 70 to about 15 weight percent of one or more refractory aggregates, based on the weight of the monolithic refractory castable material. The monolithic refractory castable material is water dispersible and may be delivered to a structure surface by casting, pumping, shotcreting or gunning processes. In one embodiment, the monolithic refractory castable material may be employed to install or replace a blast furnace lining.Type: GrantFiled: August 23, 2011Date of Patent: July 4, 2017Assignee: ALLIED MINERAL PRODUCTS, INC.Inventors: Yuechu Ma, Douglas K. Doza, Timothy M. Green, Dana G. Goski
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Publication number: 20120052196Abstract: A monolithic refractory castable material comprises from about 25 to about 80 weight percent of graphite, from about 1 to about 15 weight percent of a water dispersible, curable phenolic novolac resin, and from about 70 to about 15 weight percent of one or more refractory aggregates, based on the weight of the monolithic refractory castable material. The monolithic refractory castable material is water dispersible and may be delivered to a structure surface by casting, pumping, shotcreting or gunning processes. In one embodiment, the monolithic refractory castable material may be employed to install or replace a blast furnace lining.Type: ApplicationFiled: August 23, 2011Publication date: March 1, 2012Inventors: Yuechu MA, Douglas K. Doza, Timothy M. Green, Dana G. Goski
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Patent number: 6893992Abstract: A dry refractory composition having superior resistance to crack propagation. The dry refractory composition includes at least matrix material, filler lightweight material, and metal fibers. The composition also may include dense refractory aggregate. The dry refractory composition is suitable for use in containing heat in metal containment and other applications.Type: GrantFiled: February 7, 2003Date of Patent: May 17, 2005Assignee: Allied Mineral Products, IncInventors: Douglas K. Doza, Dana G. Goski, Yuechu Ma
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Patent number: 6864199Abstract: A dry refractory composition having superior resistance to crack propagation. The dry refractory composition includes at least matrix materials and metal fibers. The composition also may include dense refractory aggregate. The dry refractory composition is particularly suitable for use in metal containment applications.Type: GrantFiled: February 7, 2003Date of Patent: March 8, 2005Assignee: Allied Mineral Products, Inc.Inventors: Douglas K. Doza, Dana G. Goski, Yuechu Ma
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Publication number: 20040157724Abstract: A dry refractory composition having superior resistance to crack propagation. The dry refractory composition includes at least matrix material, filler lightweight material, and metal fibers. The composition also may include dense refractory aggregate. The dry refractory composition is suitable for use in containing heat in metal containment and other applications.Type: ApplicationFiled: February 7, 2003Publication date: August 12, 2004Inventors: Douglas K. Doza, Dana G. Goski, Yuechu Ma
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Publication number: 20040157725Abstract: A dry refractory composition having superior resistance to crack propagation. The dry refractory composition includes at least matrix materials and metal fibers. The composition also may include dense refractory aggregate. The dry refractory composition is particularly suitable for use in metal containment applications.Type: ApplicationFiled: February 7, 2003Publication date: August 12, 2004Inventors: Douglas K. Doza, Dana G. Goski, Yuechu Ma
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Patent number: 6743382Abstract: A method of installing a refractory lining in a coreless or channel electric induction furnace. For installation of a refractory lining in a furnace wall, the method comprises the steps of providing a dry refractory material between a liner form placed within the furnace and a furnace wall, placing at least one variable frequency/amplitude electric vibrator in operational communication with an element selected from a structural member of the furnace, the liner form, and a vibrator rig placed within the furnace, inducing flow of the dry refractory material by operating at least one variable frequency/amplitude vibrator in a first operational mode having a high amplitude, low frequency vibration, and compacting the dry refractory material by operating at least one variable frequency/amplitude vibrator in a second operational mode having low amplitude, high frequency vibration after inducing flow of the dry refractory material.Type: GrantFiled: July 18, 2001Date of Patent: June 1, 2004Assignee: Allied Mineral Products, Inc.Inventors: William M. Opatt, Douglas K. Doza
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Publication number: 20030015812Abstract: A method of installing a refractory lining in a coreless or channel electric induction furnace. For installation of a refractory lining in a furnace wall, the method comprises the steps of providing a dry refractory material between a liner form placed within the furnace and a furnace wall, placing at least one variable frequency/amplitude electric vibrator in operational communication with an element selected from a structural member of the furnace, the liner form, and a vibrator rig placed within the furnace, inducing flow of the dry refractory material by operating at least one variable frequency/amplitude vibrator in a first operational mode having a high amplitude, low frequency vibration, and compacting the dry refractory material by operating at least one variable frequency/amplitude vibrator in a second operational mode having low amplitude, high frequency vibration after inducing flow of the dry refractory material.Type: ApplicationFiled: July 18, 2001Publication date: January 23, 2003Inventors: William M. Opatt, Douglas K. Doza
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Patent number: 6458732Abstract: A dry refractory composition having superior insulating value. The dry refractory composition also may have excellent resistance to molten metals and slags. The composition includes filler lightweight material, which may be selected from perlite, vermiculite, expanded shale, expanded fireclay, expanded alumina silica hollow spheres, bubble alumina, sintered porous alumina, alumina spinel insulating aggregate, calcium alumina insulating aggregate, expanded mulllite, cordierite, and anorthite, and matrix material, which may be selected from calcined alumina, fused alumina, sintered magnesia, fused magnesia, silica fume, fused silica, silicon carbide, boron carbide, titanium diboride, zirconium boride, boron nitride, aluminum nitride, silicon nitride, Sialon, titanium oxide, barium sulfate, zircon, a sillimanite group mineral, pyrophyllite, fireclay, carbon, and calcium fluoride.Type: GrantFiled: June 7, 1999Date of Patent: October 1, 2002Assignee: Allied Mineral Products, Inc.Inventors: Douglas K. Doza, John Y. Liu