Patents by Inventor Ronald L. Barrett

Ronald L. Barrett 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: 20170304892
    Abstract: In a steel ladle used for handling molten steel, a precast ladle barrel ring forms part of a refractory structure that covers the bottom wall and side wall of the steel ladle. The precast ladle barrel ring is comprised of a monolithic annular ring formed of a high-temperature, cast refractory. The annular ring further includes means for positioning the precast ladle barrel ring in a steel ladle.
    Type: Application
    Filed: July 13, 2017
    Publication date: October 26, 2017
    Applicant: North American Refractories Company
    Inventor: Ronald L. Barrett
  • Patent number: 9724757
    Abstract: In a steel ladle used for handling molten steel, a precast ladle barrel ring forms part of a refractory structure that covers the bottom wall and side wall of the steel ladle. The precast ladle barrel ring is comprised of a monolithic annular ring formed of a high-temperature, cast refractory. The annular ring further includes means for positioning the precast ladle barrel ring in a steel ladle.
    Type: Grant
    Filed: August 24, 2015
    Date of Patent: August 8, 2017
    Assignee: NORTH AMERICAN REFRACTORIES COMPANY
    Inventor: Ronald L. Barrett
  • Patent number: 9724756
    Abstract: In a metallurgical vessel used for handling molten metal, a preformed refractory component forms part of a refractory structure that covers the bottom wall and side wall of the metallurgical vessel. The preformed refractory component is generally cup-shaped and formed of high-temperature refractory materials.
    Type: Grant
    Filed: May 9, 2014
    Date of Patent: August 8, 2017
    Assignee: NORTH AMERICA REFRACTORIES COMPANY
    Inventor: Ronald L. Barrett
  • Patent number: 9616496
    Abstract: In a steel ladle used for handling molten steel, a precast ladle barrel ring forms part of a refractory structure that covers the bottom wall and side wall of the steel ladle. The precast ladle barrel ring is comprised of a monolithic annular ring formed of a high-temperature, cast refractory. The annular ring further includes means for positioning the precast ladle barrel ring in a steel ladle.
    Type: Grant
    Filed: October 19, 2015
    Date of Patent: April 11, 2017
    Assignee: NORTH AMERICAN REFRACTORIES COMPANY
    Inventor: Ronald L. Barrett
  • Publication number: 20160039002
    Abstract: In a steel ladle used for handling molten steel, a precast ladle barrel ring forms part of a refractory structure that covers the bottom wall and side wall of the steel ladle. The precast ladle barrel ring is comprised of a monolithic annular ring formed of a high-temperature, cast refractory. The annular ring further includes means for positioning the precast ladle barrel ring in a steel ladle.
    Type: Application
    Filed: October 19, 2015
    Publication date: February 11, 2016
    Applicant: NORTH AMERICAN REFRACTORIES COMPANY
    Inventor: Ronald L. BARRETT
  • Publication number: 20150360915
    Abstract: In a steel ladle used for handling molten steel, a precast ladle barrel ring forms part of a refractory structure that covers the bottom wall and side wall of the steel ladle. The precast ladle barrel ring is comprised of a monolithic annular ring formed of a high-temperature, cast refractory. The annular ring further includes means for positioning the precast ladle barrel ring in a steel ladle.
    Type: Application
    Filed: August 24, 2015
    Publication date: December 17, 2015
    Applicant: NORTH AMERICAN REFRACTORIES COMPANY
    Inventor: Ronald L. BARRETT
  • Publication number: 20150321251
    Abstract: In a metallurgical vessel used for handling molten metal, a preformed refractory component forms part of a refractory structure that covers the bottom wall and side wall of the metallurgical vessel. The preformed refractory component is generally cup-shaped and formed of high-temperature refractory materials.
    Type: Application
    Filed: May 9, 2014
    Publication date: November 12, 2015
    Applicant: NORTH AMERICAN REFRACTORIES COMPANY
    Inventor: Ronald L. BARRETT
  • Patent number: 9126265
    Abstract: In a steel ladle used for handling molten steel, a precast ladle barrel ring forms part of a refractory structure that covers the bottom wall and side wall of the steel ladle. The precast ladle barrel ring is comprised of a monolithic annular ring formed of a high-temperature, cast refractory. The annular ring further includes means for positioning the precast ladle barrel ring in a steel ladle.
    Type: Grant
    Filed: September 6, 2013
    Date of Patent: September 8, 2015
    Assignee: NORTH AMERICAN REFRACTORIES CO.
    Inventor: Ronald L. Barrett
  • Publication number: 20150069678
    Abstract: In a steel ladle used for handling molten steel, a precast ladle barrel ring forms part of a refractory structure that covers the bottom wall and side wall of the steel ladle. The precast ladle barrel ring is comprised of a monolithic annular ring formed of a high-temperature, cast refractory. The annular ring further includes means for positioning the precast ladle barrel ring in a steel ladle.
    Type: Application
    Filed: September 6, 2013
    Publication date: March 12, 2015
    Applicant: NORTH AMERICAN REFRACTORIES COMPANY
    Inventor: Ronald L. Barrett
  • Patent number: 8354056
    Abstract: A method of securing a precast refractory shape within a refractory structure, comprising the steps of forming a precast refractory shape by casting a refractory shape to have a plurality of spaced-apart cavities formed in an outer surface thereof; positioning the precast refractory within a refractory structure; and casting a refractory material around the precast refractory shape such that the refractory material covers the outer surface of the precast refractory and fills the cavities.
    Type: Grant
    Filed: January 30, 2008
    Date of Patent: January 15, 2013
    Assignee: North American Refractories Co.
    Inventor: Ronald L. Barrett
  • Publication number: 20090191423
    Abstract: A method of securing a precast refractory shape within a refractory structure, comprising the steps of forming a precast refractory shape by casting a refractory shape to have a plurality of spaced-apart cavities formed in an outer surface thereof; positioning the precast refractory within a refractory structure; and casting a refractory material around the precast refractory shape such that the refractory material covers the outer surface of the precast refractory and fills the cavities.
    Type: Application
    Filed: January 30, 2008
    Publication date: July 30, 2009
    Inventor: Ronald L. Barrett
  • Publication number: 20090020926
    Abstract: An insulating refractory lining for insulating the inner surface of a vessel defined by a metal shell. The refractory lining is comprised of a first refractory layer overlaying an inner surface of a metal shell. The first refractory layer is comprised of a cast refractory material and has a first side facing the metal shell and a second side facing away from the metal shell. A plurality of discrete, spaced-apart cavities are formed in the first side of the first refractory layer. The cavities define air pockets between the metal shell and the first refractory layer.
    Type: Application
    Filed: July 17, 2007
    Publication date: January 22, 2009
    Inventors: Ronald L. Barrett, Paul C. Sheil
  • Publication number: 20090020927
    Abstract: An insulating refractory lining for insulating the inner surface of a vessel defined by a metal shell. The refractory lining is comprised of a first refractory layer overlaying an inner surface of a metal shell. The first refractory layer is comprised of a cast refractory material and has a first side facing the metal shell and a second side facing away from the metal shell. A plurality of discrete, spaced-apart cavities are formed in the first side of the first refractory layer. The cavities define air pockets between the metal shell and the first refractory layer.
    Type: Application
    Filed: September 8, 2008
    Publication date: January 22, 2009
    Inventors: Ronald L. Barrett, Paul C. Sheil