F22B 9 - Steam boilers of fire-tube type, i.e. the flue gas from a combustion chamber outside the boiler body flowing through tubes built-in in the boiler body

Patents for F22B 9 - Steam boilers of fire-tube type, i.e. the flue gas from a combustion chamber outside the boiler body flowing through tubes built-in in the boiler body (351)
04/1993
04/28/1993	CN2131017Y Boiler
12/1992
12/08/1992	US5168835 Pulsating combustion device
10/1992
10/28/1992	CN2120256U Heat-transfer pipe bundle built-in drum type steam-and-water combined boiler
10/21/1992	CN2119566U Household internal heating type fuel gas boiler
10/07/1992	CN2118234U Horizontal non-pressure steam self-flow boiler for heating
09/1992
09/02/1992	EP0501350A1 Heat exchanger, particularly for heating stations and steam generators
05/1992
05/06/1992	CN2103730U Reinforced heat exchanging disturbance device for fuel gas
04/1992
04/22/1992	CN2102443U Multi-purpose water heater
03/1992
03/11/1992	CN2098616U Verticle coal-burning stem boiler
03/11/1992	CN2098615U Boiler with exchangeable back flow
02/1992
02/19/1992	CN1058838A Hanging bladder energy-saving water furnace
01/1992
01/24/1992	CA2044641A1 Helical flue baffle for a water heater
11/1991
11/13/1991	CN2088647U High-efficiency energy-saving heater for warming
08/1991
08/07/1991	CN2082356U High efficient multi-functioned coal boiler
04/1991
04/24/1991	CN2075739U 铸铁蒸汽锅炉 Cast iron steam boiler
03/1991
03/13/1991	CN2073081U Top-burning shaped coal boiler
03/12/1991	US4998508 Condensing type boilers
02/1991
02/20/1991	CN2071754U Suspension cone liner type energy-saving gas tea boiler
02/06/1991	CN2070869U Lining hanging type feul energy-saving tea boiler
10/1990
10/24/1990	CN2064457U Vertical steam boilers with high tmep. and ambient pressure
12/1989
12/06/1989	CN2048931U Horizontal industrial boiler
11/1989
11/01/1989	CN2046974U Vertical pressureless boiler with counter-combustion vertical fire-tube
09/1989
09/26/1989	CA1261123A1 Fluidized bed reactor
07/1989
07/25/1989	US4850537 Method and apparatus for producing multivortex fluid flow
04/1989
04/11/1989	CA1252351A1 Door seal
12/1988
12/13/1988	CA1246407A1 Pre-heater
06/1988
06/22/1988	CN87205442U Upright boiler with double section fire tube
01/1988
01/13/1988	CN86104507A Fast heat-gathering boiler
12/1987
12/22/1987	US4714050 Pre-heater
12/16/1987	CN86207899U Directly heating type steam boiler
12/09/1987	CN86209381U Boiler using waste heat
10/1987
10/21/1987	CN87200699U Boiler with in two opposite directions burning mode
10/03/1987	CN86204884U Multifunctional energy-saving domestic heating stove
07/1987
07/15/1987	CN86202995U Multipurpose vertical boiler
02/1987
02/17/1987	US4643747 Reaction gas cooler for low-energy plants
04/1986
04/01/1986	US4579086 Vertical tube boiler
01/1986
01/14/1986	US4564067 Waste-heat tank
11/1985
11/12/1985	US4552123 Gas-fired steam cooker
03/1984
03/13/1984	CA1163509A1 Gas- or oil-burning warm water, hot water or steam boiler
02/1984
02/28/1984	US4433644 Steam boilers
02/15/1984	EP0100372A1 Improvements relating to boilers
10/1981
10/06/1981	US4292933 Furnace
10/06/1981	US4292904 Furnace and boiler system and method of operation thereof
06/1981
06/09/1981	CA1102784A1 Pipe assembly-heat exchanger-steam unit
10/1980
10/21/1980	US4228767 Self contained boiler package utilizing atmospheric fluidized bed combustion
05/1980
05/20/1980	US4203392 Heat exchanger
12/1979
12/25/1979	US4180017 Pipe assembly-heat exchanger-steam drum unit
06/1979
06/19/1979	USRE30033 Vertical firetube waste heat boiler
05/1978
05/16/1978	US4089278 Furnace, especially a coal burning furnace, and method of operation
07/1977
07/12/1977	US4034717 Multi-section heat exchanger means
08/1976
08/24/1976	US3976033 Vertical firetube waste heat boiler

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