Patents Represented by Attorney R. L. Spicer, Jr.
  • Patent number: 4773385
    Abstract: This invention is an attachment for installation along a flue duct between a heater and a chimney, including a flue duct section, having a jet tube therein, receiving air from an exterior motor-driven fan, so as to create a vortex and a third stage burner at the jet tube end.
    Type: Grant
    Filed: June 9, 1983
    Date of Patent: September 27, 1988
    Inventor: Grafton G. Gatling