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Class Information
Number: 122/155.2
Name: Liquid heaters and vaporizers > Flue > Vertical > With flue baffle
Description: Device wherein a static structure regulates the fluid flow in a flue.










Patents under this class:
1 2

Patent Number Title Of Patent Date Issued
8375897 Gas water heater Feb. 19, 2013
8291869 Method for preventing coagulation in exhaust pipe of boiler Oct. 23, 2012
7836856 Water heater with condensing flue Nov. 23, 2010
7634977 Gas water heater Dec. 22, 2009
7311064 Gas water heater damper/baffle Dec. 25, 2007
7100541 High efficiency tank type continuous flow and self cleaning water heater Sep. 5, 2006
7000572 Telescopic baffle for water heater Feb. 21, 2006
6957629 Water heater flue with improved heat transfer Oct. 25, 2005
6675746 Heat exchanger with internal pin elements Jan. 13, 2004
6584940 Flue pipe control Jul. 1, 2003
6578531 Gas appliance with flash suppressor Jun. 17, 2003
6546897 Thermodynamically activated flue damper Apr. 15, 2003
6422179 Water heater flue system Jul. 23, 2002
6354248 Heat exchange element for a water heater flue Mar. 12, 2002
6286465 Water heater flue system Sep. 11, 2001
5799622 Furnace heat exchanger tube cleaning system Sep. 1, 1998
5787846 Variable flow volume control baffle for water heater Aug. 4, 1998
5771711 High-temperature regenerator Jun. 30, 1998
5687677 Heat exchange tube and method of making same Nov. 18, 1997
5666942 Flue insert to control exhaust gases Sep. 16, 1997
5596979 Sound inhibitor baffles Jan. 28, 1997
5544625 Flue baffle for gas-fired hot water tanks Aug. 13, 1996
5516278 Forced draft mixer and burner assembly with pressure distribution device May. 14, 1996
5437247 Drop down corbelling (LAW029) Aug. 1, 1995
5411013 Flue insert to control exhaust gases May. 2, 1995
5365887 Ultra-high efficiency on-demand water heater and heat exchanger Nov. 22, 1994
5355843 Heat transfer mechanism with thin filaments including ceramic high temperature heat exchanger Oct. 18, 1994
5090369 Heat-absorbing/heating device with high efficiency and a supporting device therefor Feb. 25, 1992
4989549 Ultra-low NO.sub.x combustion apparatus Feb. 5, 1991
4971025 Gas-powered apparatus for producing warm water and for heating an enclosed space Nov. 20, 1990
4969420 Magnesium pressure vessel water tank Nov. 13, 1990
4953535 Flue control device Sep. 4, 1990
4953510 Apparatus and method for heating water Sep. 4, 1990
4705106 Wire brush heat exchange insert and method Nov. 10, 1987
4702226 Hot water tank water preheater Oct. 27, 1987
4702312 Thin rod packing for heat exchangers Oct. 27, 1987
4671212 Gas fired heat exchanger for hot water with bimetallic scouring baffle Jun. 9, 1987
4662350 Heating apparatus for a water heating for small rooms May. 5, 1987
4633821 Liquid heating apparatus Jan. 6, 1987
4624216 Furnace for burning oil or gas Nov. 25, 1986
4617870 Method of accelerating radiative transfer Oct. 21, 1986
4612879 Hot water heater and steam generator Sep. 23, 1986
4480590 Boiler having a pumping effect Nov. 6, 1984
4480631 Apparatus for delivering heated fluid medium Nov. 6, 1984
4471725 Heat exchanger cleaner Sep. 18, 1984
4458665 Heat exchanger with baffle plates Jul. 10, 1984
4453496 Multitubular once-through boiler Jun. 12, 1984
4427058 HRSG Sidewall baffle Jan. 24, 1984
4412558 Turbulator Nov. 1, 1983
4401101 Wood-fired boiler and storage system Aug. 30, 1983

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