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).

  • Publication number: 20190360751
    Abstract: 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: Application
    Filed: August 8, 2019
    Publication date: November 28, 2019
    Inventors: Dana G. Goski, Douglas K. Doza, Anthony S. DiSaia, Duncan Lawrie
  • Patent number: 10378823
    Abstract: 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: Grant
    Filed: August 1, 2013
    Date of Patent: August 13, 2019
    Assignee: ALLIED MINERAL PRODUCTS, INC.
    Inventors: Dana G. Goski, Douglas K. Doza, Anthony S. DiSaia, Duncan Lawrie
  • Patent number: 9695088
    Abstract: 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: Grant
    Filed: August 23, 2011
    Date of Patent: July 4, 2017
    Assignee: ALLIED MINERAL PRODUCTS, INC.
    Inventors: Yuechu Ma, Douglas K. Doza, Timothy M. Green, Dana G. Goski
  • Publication number: 20120052196
    Abstract: 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: Application
    Filed: August 23, 2011
    Publication date: March 1, 2012
    Inventors: Yuechu MA, Douglas K. Doza, Timothy M. Green, Dana G. Goski
  • Patent number: 6893992
    Abstract: 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: Grant
    Filed: February 7, 2003
    Date of Patent: May 17, 2005
    Assignee: Allied Mineral Products, Inc
    Inventors: Douglas K. Doza, Dana G. Goski, Yuechu Ma
  • Patent number: 6864199
    Abstract: 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: Grant
    Filed: February 7, 2003
    Date of Patent: March 8, 2005
    Assignee: Allied Mineral Products, Inc.
    Inventors: Douglas K. Doza, Dana G. Goski, Yuechu Ma
  • Publication number: 20040157724
    Abstract: 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: Application
    Filed: February 7, 2003
    Publication date: August 12, 2004
    Inventors: Douglas K. Doza, Dana G. Goski, Yuechu Ma
  • Publication number: 20040157725
    Abstract: 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: Application
    Filed: February 7, 2003
    Publication date: August 12, 2004
    Inventors: Douglas K. Doza, Dana G. Goski, Yuechu Ma
  • Patent number: 6743382
    Abstract: 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: Grant
    Filed: July 18, 2001
    Date of Patent: June 1, 2004
    Assignee: Allied Mineral Products, Inc.
    Inventors: William M. Opatt, Douglas K. Doza
  • Publication number: 20030015812
    Abstract: 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: Application
    Filed: July 18, 2001
    Publication date: January 23, 2003
    Inventors: William M. Opatt, Douglas K. Doza
  • Patent number: 6458732
    Abstract: 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: Grant
    Filed: June 7, 1999
    Date of Patent: October 1, 2002
    Assignee: Allied Mineral Products, Inc.
    Inventors: Douglas K. Doza, John Y. Liu