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.

Date of Patent:
Sep. 10, 2002

Filed:

Nov. 16, 2001
Applicant:
Inventors:

Philip Carbone, North Reading, MA (US);

Karen Benedek, Winchester, MA (US);

Judith Reich, North Andover, MA (US);

Dewi Bramono, Malden, MA (US);

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F22B 5/00 ;
U.S. Cl.
CPC ...
F22B 5/00 ;
Abstract

A water heater including a water container, a combustion chamber adjacent the container, the combustion chamber having a side wall and at least one flame arrestor to admit air and extraneous fumes into the combustion chamber and confine ignition and combustion of the extraneous fumes within the combustion chamber, and a burner having a multiplicity of burner ports associated with the combustion chamber and arranged to combust fuel to heat water in the container, and an air diverter including a baffle plate with an upper surface and an outer edge portion, the diverter positioned in the combustion chamber and having a lower portion of the upper surface positioned at about the same height as at least a portion of the burner ports, the baffle plate sized to form a gap between the outer edge portion and the side wall such that flames generated by combustion of the fuel tend to attach to at least a portion of the lower portion, and a flange attached to and angled upwardly from the outer edge portion and adapted to channel combustion air passing through at least a portion of the flame trap through the gap to ensure uniform combustion and meter the relative amounts of primary and secondary air, with the net effect of optimizing combustion and minimizing NO and CO emissions.


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