Patents by Inventor Russell James Hewertson
Russell James Hewertson 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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Patent number: 11598522Abstract: A method of melting a charge in a double-pass tilt rotary furnace having a door, including operating a first burner at a first firing rate, the first burner being mounted in a lower portion of the door and producing a first flame having a length; operating a second burner at a second firing rate, the second burner being mounted in an upper portion of the door and producing a second flame having a length, the second flame being distal from the charge relative to the first flame; in an initial phase when the solids in the charge impede the first flame, controlling the second firing rate to be greater than the first firing rate; and in an later phase after melting of the solids in the charge sufficiently that the first flame is not impeded, controlling the first firing rate to be greater than the second firing rate.Type: GrantFiled: October 9, 2020Date of Patent: March 7, 2023Assignee: Air Products and Chemicals, Inc.Inventors: Russell James Hewertson, Shailesh Pradeep Gangoli, J. Bruce Kenworthy, Xiaoyi He, Anup Vasant Sane
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Publication number: 20210116125Abstract: A method of melting a charge in a double-pass tilt rotary furnace having a door, including operating a first burner at a first firing rate, the first burner being mounted in a lower portion of the door and producing a first flame having a length; operating a second burner at a second firing rate, the second burner being mounted in an upper portion of the door and producing a second flame having a length, the second flame being distal from the charge relative to the first flame; in an initial phase when the solids in the charge impede the first flame, controlling the second firing rate to be greater than the first firing rate; and in an later phase after melting of the solids in the charge sufficiently that the first flame is not impeded, controlling the first firing rate to be greater than the second firing rate.Type: ApplicationFiled: October 9, 2020Publication date: April 22, 2021Applicant: Air Products and Chemicals, Inc.Inventors: RUSSELL JAMES HEWERTSON, SHAILESH PRADEEP GANGOLI, J. BRUCE KENWORTHY, XIAOYI HE, ANUP VASANT SANE
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Patent number: 10781499Abstract: A method of operating a BOF bottom stir tuyere having an inner nozzle surrounded by an annular nozzle, including during a hot metal pour phase and a blow phase, flowing an inert gas through both nozzles; during a tap phase, initiating a flow of a first reactant through the inner nozzle and a flow of a second reactant through the annular nozzle, and ceasing the flow of inert gas through the nozzles, wherein the first and second reactants includes fuel and oxidant, respectively, or vice-versa, such that a flame forms as the fuel and oxidant exit the tuyere; during a slag splash phase, continuing the flows of fuel and oxidant to maintain the flame; and after ending the slag splash phase and commencement of another hot metal pour phase, initiating a flow of inert gas through both nozzles and ceasing the flows of the first and second reactants.Type: GrantFiled: January 17, 2018Date of Patent: September 22, 2020Assignee: Air Products and Chemicals, Inc.Inventors: Gregory J. Buragino, Shailesh Pradeep Gangoli, Anshu Gupta, Anup Vasant Sane, Avishek Guha, Xiaoyi He, Michael David Buzinski, Kyle J. Niemkiewicz, Russell James Hewertson
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Publication number: 20190218631Abstract: A method of operating a BOF bottom stir tuyere having an inner nozzle surrounded by an annular nozzle, including during a hot metal pour phase and a blow phase, flowing an inert gas through both nozzles; during a tap phase, initiating a flow of a first reactant through the inner nozzle and a flow of a second reactant through the annular nozzle, and ceasing the flow of inert gas through the nozzles, wherein the first and second reactants includes fuel and oxidant, respectively, or vice-versa, such that a flame forms as the fuel and oxidant exit the tuyere; during a slag splash phase, continuing the flows of fuel and oxidant to maintain the flame; and after ending the slag splash phase and commencement of another hot metal pour phase, initiating a flow of inert gas through both nozzles and ceasing the flows of the first and second reactants.Type: ApplicationFiled: January 17, 2018Publication date: July 18, 2019Applicant: Air Products and Chemicals, Inc.Inventors: Gregory J. Buragino, Shailesh Pradeep Gangoli, Anshu Gupta, Anup Vasant Sane, Avishek Guha, Xiaoyi He, Michael David Buzinski, Kyle J. Niemkiewicz, Russell James Hewertson
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Patent number: 9689612Abstract: A selective oxy-fuel burner for mounting in a charge door of a rotary furnace, including at least two burner elements each oriented to fire into different portions of the furnace, each burner element including a selective distribution nozzle configured to flow a first reactant; and a proportional distribution nozzle configured to flow a second reactant; at least one sensor to detect one or more process parameters related to furnace operation; and a controller programmed to independently control the first reactant flow to each selective distribution nozzle based on the detected process parameters such that at least one burner element is active and at least one burner element is passive; wherein the second reactant is substantially proportionally distributed to the proportional distribution nozzles; and wherein the first reactant is one of a fuel and an oxidant and wherein the second reactant is the other of a fuel and an oxidant.Type: GrantFiled: May 26, 2015Date of Patent: June 27, 2017Assignee: Air Products and Chemicals, Inc.Inventors: Shailesh Pradeep Gangoli, J. Bruce Kenworthy, Russell James Hewertson, Anup Vasant Sane, Reed Jacob Hendershot, Xiaoyi He
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Patent number: 9657945Abstract: An oxy-fuel boost burner for a regenerative furnace having a pair of regenerator ports configured to alternately fire into and exhaust from the furnace, including at least one burner element corresponding to each of the regenerator ports by being positioned to fire into a complimentary region of the furnace, each burner element including a selective distribution nozzle configured to flow a first reactant and a proportional distribution nozzle configured to flow a second reactant, and a controller programmed to identify which regenerator port is currently firing and which is currently exhausting and to independently control the first reactant flow to each selective distribution nozzle such that the at least one burner element corresponding to the currently firing regenerator port has a greater than average first reactant flow and the at least one burner element corresponding to the currently exhausting regenerator port as a less than average first reactant flow.Type: GrantFiled: May 26, 2015Date of Patent: May 23, 2017Assignee: Air Products and Chemicals, Inc.Inventors: Shailesh Pradeep Gangoli, Russell James Hewertson, Anup Vasant Sane, John C. Palazzolo, Xiaoyi He
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Publication number: 20160348904Abstract: An oxy-fuel boost burner for a regenerative furnace having a pair of regenerator ports configured to alternately fire into and exhaust from the furnace, including at least one burner element corresponding to each of the regenerator ports by being positioned to fire into a complimentary region of the furnace, each burner element including a selective distribution nozzle configured to flow a first reactant and a proportional distribution nozzle configured to flow a second reactant, and a controller programmed to identify which regenerator port is currently firing and which is currently exhausting and to independently control the first reactant flow to each selective distribution nozzle such that the at least one burner element corresponding to the currently firing regenerator port has a greater than average first reactant flow and the at least one burner element corresponding to the currently exhausting regenerator port as a less than average first reactant flow.Type: ApplicationFiled: May 26, 2015Publication date: December 1, 2016Applicant: AIR PRODUCTS AND CHEMICALS, INC.Inventors: Shailesh Pradeep Gangoli, Russell James Hewertson, Anup Vasant Sane, John C. Palazzolo, Xiaoyi He
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Publication number: 20160348970Abstract: A selective oxy-fuel burner for mounting in a charge door of a rotary furnace, including at least two burner elements each oriented to fire into different portions of the furnace, each burner element including a selective distribution nozzle configured to flow a first reactant; and a proportional distribution nozzle configured to flow a second reactant; at least one sensor to detect one or more process parameters related to furnace operation; and a controller programmed to independently control the first reactant flow to each selective distribution nozzle based on the detected process parameters such that at least one burner element is active and at least one burner element is passive; wherein the second reactant is substantially proportionally distributed to the proportional distribution nozzles; and wherein the first reactant is one of a fuel and an oxidant and wherein the second reactant is the other of a fuel and an oxidant.Type: ApplicationFiled: May 26, 2015Publication date: December 1, 2016Applicant: AIR PRODUCTS AND CHEMICALS, INC.Inventors: Shailesh Pradeep Gangoli, J. Bruce Kenworthy, Russell James Hewertson, Anup Vasant Sane, Reed Jacob Hendershot, Xiaoyi He
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Patent number: 8404018Abstract: Burner assembly for use in industrial heating and melting applications of material susceptible to oxidation at elevated temperatures is comprised of a flow passage of oxidant surrounded by an annular flow passage of fuel whereby the oxidant is substantially contained inside the fuel layer up to at least 5 oxidant nozzle diameters downstream of the burner outlet in order to minimize contact between the oxidant and the furnace load.Type: GrantFiled: July 1, 2010Date of Patent: March 26, 2013Assignee: Air Products and Chemicals, Inc.Inventors: Jin Cao, Russell James Hewertson, Xiaoyi He
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Publication number: 20110154950Abstract: Burner assembly for use in industrial heating and melting applications of material susceptible to oxidation at elevated temperatures is comprised of a flow passage of oxidant surrounded by an annular flow passage of fuel whereby the oxidant is substantially contained inside the fuel layer up to at least 5 oxidant nozzle diameters downstream of the burner outlet in order to minimize contact between the oxidant and the furnace load.Type: ApplicationFiled: July 1, 2010Publication date: June 30, 2011Applicant: Air Products and Chemicals, Inc.Inventors: Jin Cao, Russell James Hewertson, Xiaoyi He