Patents by Inventor John J. Nowakowski

John J. Nowakowski 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).

  • NOx Suppression Techniques for a Rotary Kiln
    Publication number: 20100248175
    Abstract: A NOx suppression apparatus is configured for use with a burner that injects fuel into a stream of process air flowing into and through a rotary kiln. The apparatus comprises a premix injection system that forms a premix of fuel gas and air, and injects the premix into the stream of process air upstream of the burner port. This enables premix products of combustion to suppress the production of NOx by vitiating a combustion air portion of the process air before the combustion air portion combusts with fuel injected from the burner port.
    Type: Application
    Filed: September 2, 2009
    Publication date: September 30, 2010
    Inventors: Bruce E. Cain, Thomas F. Robertson, John J. Nowakowski
  • LOW NOx FUEL INJECTION FOR AN INDURATING FURNACE
    Publication number: 20100244336
    Abstract: An indurating furnace has a heating station and an air passage leading to the heating station. A draft of preheated recirculation air is driven through the passage toward the heating station, and is mixed with fuel gas to form a combustible mixture of preheated recirculation air and fuel gas that ignites in the passage. This is accomplished by injecting the fuel gas into the passage in a stream that does not form a combustible mixture with the preheated recirculation air before entering the passage.
    Type: Application
    Filed: March 23, 2010
    Publication date: September 30, 2010
    Inventors: Bruce E. Cain, Thomas F. Robertson, John J. Nowakowski
  • Heating method and apparatus
    Patent number: 7637739
    Abstract: Hot products of combustion are provided beside an outer surface of a load to be heated, and are given a non-uniform temperature profile in a control direction extending across the outer surface of the load. The non-uniform temperature profile of the hot products of combustion is varied within a range that is predetermined relative to the distance that the outer surface of the load extends in the control direction, whereby the load can be given a predetermined temperature profile in the control direction.
    Type: Grant
    Filed: April 22, 2005
    Date of Patent: December 29, 2009
    Assignee: Fives North American Combustion, Inc.
    Inventors: John J. Nowakowski, Julius J. Lukacs, Todd A. Miller, Thomas F. Robertson
  • Heating Method
    Publication number: 20090311640
    Abstract: Hot products of combustion are provided beside an outer surface of a load to be heated, and are given a non-uniform temperature profile in a control direction extending across the outer surface of the load. The non-uniform temperature profile of the hot products of combustion is varied within a range that is predetermined relative to the distance that the outer surface of the load extends in the control direction, whereby the load can be given a predetermined temperature profile in the control direction.
    Type: Application
    Filed: August 19, 2009
    Publication date: December 17, 2009
    Inventors: John J. Nowakowski, J.J. Lukacs, Todd A. Miller, Thomas F. Robertson
  • METHOD OF OPERATING A FURNACE
    Publication number: 20090246719
    Abstract: A method of firing a burner into a furnace process chamber supplies the burner with fuel and combustion air at a ratio that provides a level of excess air. The method includes the steps of reducing the flow rate of combustion air, and maintaining the level of excess air when the flow rate of combustion air is being reduced. Other steps include withdrawing exhaust gas from the process chamber, and supplying the burner with the exhaust gas at an increasing flow rate when the flow rate of combustion air is being reduced.
    Type: Application
    Filed: May 5, 2008
    Publication date: October 1, 2009
    Inventors: John N. Newby, Thomas F. Robertson, John J. Nowakowski
  • SUBMERGED COMBUSTION VAPORIZER WITH LOW NOX
    Publication number: 20080251036
    Abstract: A submerged combustion vaporizer may include a premix burner with multiple integral mixers for forming premix and discharging the premix into the duct system that communicates the burner with the sparger tubes. The SCV may further include a NOx suppression system that injects a staged fuel stream into the exhaust in the duct system, and/or a NOx suppression system that mixes water with the premix.
    Type: Application
    Filed: June 24, 2008
    Publication date: October 16, 2008
    Inventors: Mark C. Hannum, Thomas F. Robertson, John N. Newby, John J. Nowakowski
  • COMBUSTION METHOD AND APPARATUS
    Publication number: 20080220383
    Abstract: A burner has a port facing into a combustion chamber along an axis. A secondary fuel injector structure has secondary fuel injection ports that face into the combustion chamber at locations spaced radially outward from the burner port. A tertiary fuel injector structure has tertiary fuel injection ports that face into the combustion chamber in directions perpendicular to the axis at locations spaced axially downstream from the secondary fuel injection ports.
    Type: Application
    Filed: May 21, 2008
    Publication date: September 11, 2008
    Applicant: The North American Manufacturing Company
    Inventors: Thomas B. Neville, John J. Nowakowski, Mark C. Hannum, Thomas F. Robertson
  • Combustion method and apparatus
    Patent number: 7402038
    Abstract: A burner has a port facing into a combustion chamber along an axis. A secondary fuel injector structure has secondary fuel injection ports that face into the combustion chamber at locations spaced radially outward from the burner port. A tertiary fuel injector structure has tertiary fuel injection ports that face into the combustion chamber in directions perpendicular to the axis at locations spaced axially downstream from the secondary fuel injection ports.
    Type: Grant
    Filed: April 22, 2005
    Date of Patent: July 22, 2008
    Assignee: The North American Manufacturing Company, Ltd.
    Inventors: Thomas B. Neville, John J. Nowakowski, Mark C. Hannum, Thomas F. Robertson
  • Low NOx combustion
    Publication number: 20080081301
    Abstract: A furnace has a process chamber and a burner that is operative to fire a flame into the process chamber with the influence of a flame stabilizer. A bypass apparatus is configured to inject an unignited stream of premix into the process chamber without the influence of a flame stabilizer.
    Type: Application
    Filed: October 3, 2006
    Publication date: April 3, 2008
    Inventors: Mark C. Hannum, Thomas F. Robertson, Thomas B. Neville, John J. Nowakowski