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:
Apr. 22, 2008
Filed:
Feb. 13, 2006
Timothy J. Shellenberger, Tyrone, GA (US);
Thomas A. Edds, Jonesborough, TN (US);
Timothy J. Shellenberger, Tyrone, GA (US);
Thomas A. Edds, Jonesborough, TN (US);
American Water Heater Company, Atlanta, GA (US);
Abstract
A water heater including a water container, a combustion chamber adjacent the water heater, a burner associated with the combustion chamber and arranged to combust fuel to heat water in the water container, a flue having an upper portion and a lower portion operatively connected to the combustion chamber and extending through at least a portion of the water container, and a catalytic converter located in the upper portion of the flue. The water heater may also reduce NOand CO emissions generated by a water heater having a radiant burner including activating the burner in response to the temperature of water in the water heater as needed, and substantially removing accumulated foreign matter on the burner by periodically activating the burner irrespective of the water temperature for a selected amount of time.