Patents by Inventor Stephen Arthur Yows

Stephen Arthur Yows 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).

  • Patent number: 10392250
    Abstract: A reactor system for partial oxidation gasification includes a reactor vessel that has a defined reaction zone with a reaction zone inlet and a reaction zone outlet. An injector section is operable to inject reactants to the reaction zone inlet. A coolant injector is operable to inject a coolant adjacent a reaction zone outlet. A reactor vessel outlet is located downstream of the coolant injector. A controller is configured to operate the coolant injector with respect to cooling a synthesis gas discharged from the reaction zone outlet and upwardly shifting a ratio H2:CO to a target ratio.
    Type: Grant
    Filed: May 14, 2014
    Date of Patent: August 27, 2019
    Assignee: GAS TECHNOLOGY INSTITUTE
    Inventors: Steven P. Fusselman, Stephen Arthur Yows, Lisa Bayne, Seth D. Hahn
  • Patent number: 9926501
    Abstract: An entrained-flow gasifier reactor includes a vessel and a first liner within the vessel. The first liner extends around a reaction zone in the vessel and has an inlet end and an exit end with respect to the reaction zone. The first liner includes a drip lip at the exit end. An isolator is arranged near the drip lip. The isolator is operable to thermally isolate the drip lip from a quench zone downstream from the reaction zone such that molten slag at the drip lip remains molten.
    Type: Grant
    Filed: June 2, 2014
    Date of Patent: March 27, 2018
    Assignee: Gas Technology Institute
    Inventors: Stephen Arthur Yows, Steven P. Fusselman
  • Publication number: 20160332875
    Abstract: A reactor system for partial oxidation gasification includes a reactor vessel that has a defined reaction zone with a reaction zone inlet and a reaction zone outlet. An injector section is operable to inject reactants to the reaction zone inlet. A coolant injector is operable to inject a coolant adjacent a reaction zone outlet. A reactor vessel outlet is located downstream of the coolant injector. A controller is configured to operate the coolant injector with respect to cooling a synthesis gas discharged from the reaction zone outlet and upwardly shifting a ratio H2:CO to a target ratio.
    Type: Application
    Filed: May 14, 2014
    Publication date: November 17, 2016
    Applicant: GAS TECHNOLOGY INSTITUTE
    Inventors: Steven P. FUSSELMAN, Stephen Arthur YOWS, Lisa BAYNE, Seth D. HAHN
  • Publication number: 20160137935
    Abstract: An entrained-flow gasifier reactor includes a vessel and a first liner within the vessel. The first liner extends around a reaction zone in the vessel and has an inlet end and an exit end with respect to the reaction zone. The first liner includes a drip lip at the exit end. An isolator is arranged near the drip lip. The isolator is operable to thermally isolate the drip lip from a quench zone downstream from the reaction zone such that molten slag at the drip lip remains molten.
    Type: Application
    Filed: June 2, 2014
    Publication date: May 19, 2016
    Applicant: Gas Technology Institute
    Inventors: Stephen Arthur YOWS, Steven P. FUSSELMAN
  • Patent number: 9249367
    Abstract: An impingement injector includes an injector core having a plurality of conduits. The conduits include a first conduit and second conduits disposed circumferentially around the first conduit. The second conduits are at an impinging angle with respect to the first conduit. Replaceable, tunable jets are disposed in corresponding ones of the second conduits.
    Type: Grant
    Filed: July 6, 2012
    Date of Patent: February 2, 2016
    Assignee: Gas Technology Institute
    Inventor: Stephen Arthur Yows
  • Patent number: 8771604
    Abstract: A liner for use within a gasifier vessel includes a plurality of elongated channels and a plurality of ceramic sheaths. The elongated channels pass coolant through the gasifier. The ceramic sheaths surround the elongated channels.
    Type: Grant
    Filed: February 6, 2007
    Date of Patent: July 8, 2014
    Assignee: Aerojet Rocketdyne of DE, Inc.
    Inventors: Mark A. Fitzsimmons, Stephen Arthur Yows, Steven P. Fusselman
  • Patent number: 8673234
    Abstract: A reactor vessel liner system includes a liner having an inner wall, an outer wall, and a plurality of passages extending between the inner wall and the outer wall. An attachment member extends outwards from the outer wall for securing the liner.
    Type: Grant
    Filed: March 4, 2008
    Date of Patent: March 18, 2014
    Assignee: Aerojet Rocketdyne of DE, Inc.
    Inventors: Stephen Arthur Yows, Steven P. Fusselman, Bryan William McEnerney, Kenneth M. Sprouse
  • Publication number: 20140008466
    Abstract: An impingement injector includes an injector core having a plurality of conduits. The conduits include a first conduit and second conduits disposed circumferentially around the first conduit. The second conduits are at an impinging angle with respect to the first conduit. Replaceable, tunable jets are disposed in corresponding ones of the second conduits.
    Type: Application
    Filed: July 6, 2012
    Publication date: January 9, 2014
    Inventor: Stephen Arthur Yows
  • Patent number: 7972572
    Abstract: A reactor vessel liner system includes a liner having a plurality of first conduits and a plurality of second conduits for conveying a coolant. The plurality of second conduits is located at least partially within corresponding ones of the plurality of first conduits.
    Type: Grant
    Filed: March 4, 2008
    Date of Patent: July 5, 2011
    Assignee: Pratt & Whitney Rocketdyne, Inc.
    Inventors: Steven P. Fusselman, Stephen Arthur Yows, Bryan William McEnerney, Kenneth M. Sprouse
  • Patent number: 7740671
    Abstract: A dump-cooled gasifier includes a vessel, a liner, and coolant. The liner has a head end, an aft end, and a plurality of channels extending along a length of the vessel. The aft end of the liner is axially and radially expandable with respect to the head end of the liner. The coolant enters at the head end of the liner, flows through the liner, and is expelled from the aft end of the liner directly into the vessel.
    Type: Grant
    Filed: December 18, 2006
    Date of Patent: June 22, 2010
    Assignee: Pratt & Whitney Rocketdyne, Inc.
    Inventors: Stephen Arthur Yows, Steven P. Fusselman
  • Publication number: 20090226349
    Abstract: A reactor vessel liner system includes a liner having an inner wall, an outer wall, and a plurality of passages extending between the inner wall and the outer wall. An attachment member extends outwards from the outer wall for securing the liner.
    Type: Application
    Filed: March 4, 2008
    Publication date: September 10, 2009
    Inventors: Stephen Arthur Yows, Steven P. Fusselman, Bryan William McEnerney, Kenneth M. Sprouse
  • Publication number: 20090226350
    Abstract: A reactor vessel liner system includes a liner having a plurality of first conduits and a plurality of second conduits for conveying a coolant. The plurality of second conduits is located at least partially within corresponding ones of the plurality of first conduits.
    Type: Application
    Filed: March 4, 2008
    Publication date: September 10, 2009
    Inventors: Steven P. Fusselman, Stephen Arthur Yows, Bryan William McEnerney, Kenneth M. Sprouse
  • Publication number: 20080187877
    Abstract: A liner for use within a gasifier vessel includes a plurality of elongated channels and a plurality of ceramic sheaths. The elongated channels pass coolant through the gasifier. The ceramic sheaths surround the elongated channels.
    Type: Application
    Filed: February 6, 2007
    Publication date: August 7, 2008
    Applicant: Pratt & Whitney Rocketdyne Inc.
    Inventors: Mark Andrew Fitzsimmons, Stephen Arthur Yows, Steven P. Fusselman
  • Publication number: 20080141913
    Abstract: A dump-cooled gasifier includes a vessel, a liner, and coolant. The liner has a head end, an aft end, and a plurality of channels extending along a length of the vessel. The aft end of the liner is axially and radially expandable with respect to the head end of the liner. The coolant enters at the head end of the liner, flows through the liner, and is expelled from the aft end of the liner directly into the vessel.
    Type: Application
    Filed: December 18, 2006
    Publication date: June 19, 2008
    Applicant: Pratt & Whitney Rocketdyne, Inc.
    Inventors: Stephen Arthur Yows, Steven P. Fusselman