Patents Assigned to Tulsa Heaters, Inc.
  • Nitrogen oxide control using internally recirculated flue gas
    Patent number: 5135387
    Abstract: An improved process and apparatus for reducing NO.sub.x content of flue gas effluent from a furnace, the improvement comprising a burner assembly having a burner and flue gas recirculating system for collecting and passing internally recirculating flue gas into a combustion zone for reaction with a combustion flame. The burner preferably has a plurality of fuel dispensing nozzles peripherally disposed about the combustion zone to aspirate collected internally recirculating flue gas into the combustion zone, and has a plurality of fluid driven eductors to drive further amounts of collected internally recirculating flue gas into the combustion zone.
    Type: Grant
    Filed: June 24, 1991
    Date of Patent: August 4, 1992
    Assignees: IT-McGill Environmental Systems, Inc., Tulsa Heaters, Inc.
    Inventors: Michael J. Martin, William C. Gibson, Lee R. Massey
  • Nitrogen oxide control using internally recirculated flue gas
    Patent number: 5044932
    Abstract: An improved process and apparatus for reducing NO.sub.x content of flue gas effluent from a furnace, the improvement comprising a burner assembly having a burner and flue gas recirculating system for collecting and passing internally recirculating flue gas into a combustion zone for reaction with a combustion flame. The burner preferably has a plurality of fuel dispensing nozzles peripherally disposed about the combustion zone to aspirate collected internally recirculating flue gas into the combustion zone, and has a plurality of fluid driven eductors to drive further amounts of collected internally recirculating flue gas into the combustion zone.
    Type: Grant
    Filed: October 19, 1989
    Date of Patent: September 3, 1991
    Assignees: IT-McGill Pollution Control Systems, Inc., Tulsa Heaters, Inc.
    Inventors: Michael J. Martin, William C. Gibson, Lee R. Massey