Liquid heaters and vaporizers – Stand boiler – Fluid fuel burner
Reexamination Certificate
2007-11-27
2007-11-27
Wilson, Gregory (Department: 3749)
Liquid heaters and vaporizers
Stand boiler
Fluid fuel burner
C122S155100, C122S013010
Reexamination Certificate
active
11209242
ABSTRACT:
The water heating apparatus has an upright cylindrical thermally insulated storage tank, an axially extending exhaust gas pipe passing centrally through the storage tank and a combustion chamber under the storage tank. An atmospheric gas burner, which has a complete premixing fuel gas/air supply system, is arranged within the combustion chamber. The exhaust gas pipe has a section extending within the combustion chamber, which preferably extends towards the bottom of the combustion chamber and has an end located a few centimeters from the bottom, so that the combustion gases have a longer dwell time in the combustion chamber and the exhaust gas pipe in order to improve heating efficiency.
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Ceramat, S.coop.
Striker Michael J.
Wilson Gregory
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