Liquid heaters and vaporizers – Stand boiler – And condition responsive feature
Reexamination Certificate
2006-04-18
2006-04-18
Wilson, Gregory (Department: 3749)
Liquid heaters and vaporizers
Stand boiler
And condition responsive feature
C122S014200, C431S080000
Reexamination Certificate
active
07028642
ABSTRACT:
A radiant gas burner within the combustion chamber of a water heater has a pilot flame created using a raw fuel jet that impinges on an interior surface portion of a flame holding outer burner wall portion, representatively of a metal wire mesh material, and is mixed within the burner with combustion air delivered thereto from outside the combustion chamber. The resulting fuel/air mixture passes outwardly through the impinged upon mesh wall portion, which functions as a pilot flame stabilizing structure, and is ignited to form a pilot flame on the exterior of the burner body. A thermocouple portion of a clogging detection system senses a change in the pilot flame shape caused by particulate clogging of the metal mesh material and responsively terminates further gas supply to the water heater.
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Mar. 30, 2005 New Zealand Examination Report.
Konneker & Smith P.C.
Rheem Manufacturing Company
Wilson Gregory
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