Liquid heaters and vaporizers – Stand boiler – And condition responsive feature
Reexamination Certificate
2005-02-15
2005-02-15
Wilson, Gregory (Department: 3749)
Liquid heaters and vaporizers
Stand boiler
And condition responsive feature
C122S014210
Reexamination Certificate
active
06854428
ABSTRACT:
A fuel-fired, power vented water heater has a combustion chamber with an outer wall portion defined by an arrestor plate in which flame quenching air inlet openings are formed. All combustion air entering the combustion chamber must first pass through an air inlet plenum extending outwardly from the arrestor plate and then pass inwardly through the flame quenching openings into the combustion chamber. The air inlet plenum is provided with a normally closed inlet damper which automatically closes during non-firing periods of the water heater to prevent passage of combustion air (and extraneous flammable vapors, if present, adjacent the water heater) into the combustion chamber, and opens during firing periods of the water heater to permit operative combustion air delivery to the combustion chamber.
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Hotton Bruce A.
Scanlon John H.
Stretch Gordon W.
Trant Troy E.
Konneker & Smith P.C.
The Water Heater Industry Joint Research and Development Consort
Wilson Gregory
LandOfFree
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