Patents by Inventor Donald James Bowe
Donald James Bowe 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: 11549874Abstract: An apparatus for controlling blending of a gas mixture containing known components, including first, second, and third control valves for controlling the flow of first, second, and third components, respectively, a first gas density sensor to measure the density of a first mixture of the first and second components, a second gas density sensor to measure the density of a second mixture of the first mixture and the third component, and a controller to determine based on data from the first and second gas density sensors the relative compositions of the first, second, and third components in the second mixture, and to control the first, second, and third control valves to obtain a desired relative composition of the first, second, and third components in the second mixture.Type: GrantFiled: January 19, 2021Date of Patent: January 10, 2023Assignee: Air Products and Chemicals, Inc.Inventors: Liang He, Ranajit Ghosh, Donald James Bowe, Reed Jacob Hendershot
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Publication number: 20210140865Abstract: An apparatus for controlling blending of a gas mixture containing known components, including first, second, and third control valves for controlling the flow of first, second, and third components, respectively, a first gas density sensor to measure the density of a first mixture of the first and second components, a second gas density sensor to measure the density of a second mixture of the first mixture and the third component, and a controller to determine based on data from the first and second gas density sensors the relative compositions of the first, second, and third components in the second mixture, and to control the first, second, and third control valves to obtain a desired relative composition of the first, second, and third components in the second mixture.Type: ApplicationFiled: January 19, 2021Publication date: May 13, 2021Applicant: Air Products and Chemicals, Inc.Inventors: Liang He, Ranajit Ghosh, Donald James Bowe, Reed Jacob Hendershot
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Patent number: 10928287Abstract: An apparatus for measuring the composition of a gas mixture containing known components, including a first gas density sensor configured and arranged to measure the density of a first mixture made by combining a gaseous first component and a gaseous second component; a second gas density sensor configured and arranged to measure the density of a second mixture made by combining the first mixture with a gaseous third component; and a processor programmed to determined based on data from the first gas density sensor the relative compositions of the first component and the second component in the first mixture, and to determine based on the data from the second gas density sensor the relative compositions of the first mixture and the third component in the second mixture, and thus to determine the relative compositions of the first component, the second component, and the third component in the second mixture.Type: GrantFiled: August 9, 2018Date of Patent: February 23, 2021Assignee: Air Products and Chemicals, IncInventors: Liang He, Ranajit Ghosh, Donald James Bowe, Reed Jacob Hendershot
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Publication number: 20200232707Abstract: A method and an apparatus for nitriding metal articles, wherein the nitriding potential of the nitriding atmosphere is controlled as a function of the molecular weights of the inlet and outlet gases from the nitriding apparatus, as measured by molecular weight sensors located outside (external to) the furnace chamber.Type: ApplicationFiled: January 17, 2019Publication date: July 23, 2020Applicant: Air Products and Chemicals, Inc.Inventors: Liang He, Guido Plicht, Ranajit Ghosh, Donald James Bowe
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Publication number: 20200049605Abstract: An apparatus for measuring the composition of a gas mixture containing known components, including a first gas density sensor configured and arranged to measure the density of a first mixture made by combining a gaseous first component and a gaseous second component; a second gas density sensor configured and arranged to measure the density of a second mixture made by combining the first mixture with a gaseous third component; and a processor programmed to determined based on data from the first gas density sensor the relative compositions of the first component and the second component in the first mixture, and to determine based on the data from the second gas density sensor the relative compositions of the first mixture and the third component in the second mixture, and thus to determine the relative compositions of the first component, the second component, and the third component in the second mixture.Type: ApplicationFiled: August 9, 2018Publication date: February 13, 2020Applicant: Air Products and Chemicals, Inc.Inventors: Liang He, Ranajit Ghosh, Donald James Bowe, Reed Jacob Hendershot
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Patent number: 9327249Abstract: Systems and methods are provided for humidifying a gas stream. Methods for providing a humidified gas stream comprise providing a dry gas, directing the dry gas to a humidification device, humidifying the dry gas to provide a humidified gas stream having an amount of moisture in excess of a predetermined amount, directing the humidified gas stream to a cooling device, cooling the humidified gas to a predetermined temperature, and directing the cooled humidified gas to a point of usage. Systems for providing a humidified gas stream comprise a dry gas stream, a humidification device configured to receive and humidify the dry gas stream to form a humidified gas stream having an amount of moisture in excess of a predetermined amount, and a cooling device configured to receive and cool the humidified gas stream to a predetermined temperature to form a cooled humidified gas stream.Type: GrantFiled: April 17, 2012Date of Patent: May 3, 2016Assignee: Air Products and Chemicals, Inc.Inventors: Robert Scott Albro, Anna K. Wehr-Aukland, John Lewis Green, Donald James Bowe
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Patent number: 8986605Abstract: Disclosed herein is a method and gas atmosphere for a metal component in a continuous furnace. In one embodiment, the method and gas atmosphere comprises the use of an effective amount, or about 1 to about 10 percent volume of endo-gas, into an atmosphere comprising nitrogen and hydrogen. In another embodiment, there is provided a method sintering metal components in a furnace at a one or more operating temperatures comprising: providing a furnace comprising a belt comprising a wire mesh material wherein the metal components are supported thereupon; and sintering the components in the furnace in an atmosphere comprising nitrogen, hydrogen, and effective amount of endothermic gas at the one or more operating temperatures ranging from about 1800° F. to about 2200° F. wherein the amount of endothermic gas in the atmosphere is such that it is oxidizing to the wire mesh material and reducing to the metal components.Type: GrantFiled: December 13, 2010Date of Patent: March 24, 2015Assignee: Air Products and Chemicals, Inc.Inventors: Donald James Bowe, Anna K. Wehr-Aukland, John Lewis Green
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Publication number: 20130270724Abstract: Systems and methods are provided for humidifying a gas stream. Methods for providing a humidified gas stream comprise providing a dry gas, directing the dry gas to a humidification device, humidifying the dry gas to provide a humidified gas stream having an amount of moisture in excess of a predetermined amount, directing the humidified gas stream to a cooling device, cooling the humidified gas to a predetermined temperature, and directing the cooled humidified gas to a point of usage. Systems for providing a humidified gas stream comprise a dry gas stream, a humidification device configured to receive and humidify the dry gas stream to form a humidified gas stream having an amount of moisture in excess of a predetermined amount, and a cooling device configured to receive and cool the humidified gas stream to a predetermined temperature to form a cooled humidified gas stream.Type: ApplicationFiled: April 17, 2012Publication date: October 17, 2013Applicant: AIR PRODUCTS AND CHEMICALS, INC.Inventors: Robert Scott Albro, Anna K. Wehr-Aukland, John Lewis Green, Donald James Bowe
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Publication number: 20110318216Abstract: Disclosed herein is a method and gas atmosphere for a metal component in a continuous furnace. In one embodiment, the method and gas atmosphere comprises the use of an effective amount, or about 1 to about 10 percent volume of endo-gas, into an atmosphere comprising nitrogen and hydrogen. In another embodiment, there is provided a method sintering metal components in a furnace at a one or more operating temperatures comprising: providing a furnace comprising a belt comprising a wire mesh material wherein the metal components are supported thereupon; and sintering the components in the furnace in an atmosphere comprising nitrogen, hydrogen, and effective amount of endothermic gas at the one or more operating temperatures ranging from about 1800° F. to about 2200° F. wherein the amount of endothermic gas in the atmosphere is such that it is oxidizing to the wire mesh material and reducing to the metal components.Type: ApplicationFiled: December 13, 2010Publication date: December 29, 2011Applicant: AIR PRODUCTS AND CHEMICALS, INC.Inventors: Donald James Bowe, Anna K. Wehr-Aukland, John Lewis Green
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Patent number: 6045749Abstract: A method and apparatus for introducing an oxidant mixed with a carrier gas into pre-heating zone of a continuous furnace for effectively removing lubricant from powder metal compacts prior to sintering at high temperatures. Mixing a controlled amount of a gaseous oxidizing agent such as moisture, carbon dioxide, air or mixtures thereof with a carrier gas and introducing the mixture into the preheating zone of a continuous furnace under controlled conditions accelerates removal of lubricant from powder metal compacts prior to sintering at high temperature by decomposing lubricant vapors into smaller and more volatile hydrocarbons, produces sintered components with close to soot- and residue-free surfaces and with the desired physical properties, prolongs the life of furnace components including muffles and belts, and reduces downtime, maintenance and operating costs.Type: GrantFiled: June 2, 1999Date of Patent: April 4, 2000Assignee: Air Products and Chemicals, Inc.Inventors: Diwakar Garg, Donald James Bowe, James Garfield Marsden, Kerry Renard Berger, Xianming Li
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Patent number: 5970308Abstract: A method and apparatus for introducing an oxidant mixed with a carrier gas into pre-heating zone of a continuous furnace for effectively removing lubricant from powder metal compacts prior to sintering at high temperatures. Mixing a controlled amount of a gaseous oxidizing agent such as moisture, carbon dioxide, air or mixtures thereof with a carrier gas and introducing the mixture into the preheating zone of a continuous furnace under controlled conditions accelerates removal of lubricant from powder metal compacts prior to sintering at high temperature by decomposing lubricant vapors into smaller and more volatile hydrocarbons, produces sintered components with close to soot- and residue-free surfaces and with the desired physical properties, prolongs the life of furnace components including muffles and belts, and reduces downtime, maintenance and operating costs.Type: GrantFiled: August 7, 1998Date of Patent: October 19, 1999Assignee: Air Products and Chemicals, Inc.Inventors: Diwakar Garg, Donald James Bowe, James Garfield Marsden, Kerry Renard Berger, Xianming Li