The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 27, 2011
Filed:
May. 05, 2008
John N. Newby, Newburgh Heights, OH (US);
Thomas F. Robertson, Medina Township, OH (US);
John J. Nowakowski, Valley View, OH (US);
John N. Newby, Newburgh Heights, OH (US);
Thomas F. Robertson, Medina Township, OH (US);
John J. Nowakowski, Valley View, OH (US);
Fives North American Combustion, Inc., Cleveland, OH (US);
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.