F22B 25 - Water-tube boilers built-up from sets of water tubes with internally-arranged flue tubes, or fire tubes, extending through the water tubes

Patents for F22B 25 - Water-tube boilers built-up from sets of water tubes with internally-arranged flue tubes, or fire tubes, extending through the water tubes (38)
03/2014
03/25/2014	US8677945 Boiler
07/2013
07/18/2013	US20130180472 Double-walled tube, method of manufacturing double-walled tube and steam generator
07/16/2013	US8484860 Clothes treating apparatus
02/2013
02/13/2013	CN202733866U Steam generating device
10/2012
10/09/2012	US8281752 Package boiler having steam generating units in tandem
10/09/2012	US8281750 Boiler furnace to avoid thermal NOx
02/2012
02/14/2012	US8113153 Return temperature stabilizer assembly
08/2010
08/17/2010	US7775182 Boiler
03/2010
03/25/2010	US20100071634 Furnace of boiler for power station
03/23/2010	US7681536 Low maintenance fluid heater and method of firing same
05/2009
05/19/2009	US7533632 Natural circulation industrial boiler for steam assisted gravity drainage (SAGD) process
04/2009
04/14/2009	US7516719 Continuous steam generator
02/2009
02/11/2009	EP2021690A1 Steam generator for making superheated steam and its use
10/2008
10/29/2008	CN101294739A Lifting casing tube boiler
07/2008
07/30/2008	CN201093469Y Hydrogen chloride synthesis stove by-product steam apparatus
02/2008
02/07/2008	WO2008014569A1 Steam generation
11/2007
11/22/2007	WO2007131975A1 Steam generator for making superheated steam and its use
11/2005
11/16/2005	EP0862993B1 Stainless steel sheet covered with alkali-soluble protective coat
03/2003
03/05/2003	CN1102499C Stainless steel sheet covered with alkali soluble protective coat
05/2002
05/16/2002	WO2002039016A1 Boiler using coal, oil or gas as fuel
12/1999
12/23/1999	WO1999066260A1 Coal, oil and gas-fired boiler system
11/1999
11/03/1999	CN2347054Y Manually-operated boiler
02/1999
02/03/1999	CN1207069A Stainless steel sheet covered with alkali-soluble protective coat
09/1998
09/09/1998	EP0862993A1 Stainless steel sheet covered with alkali-soluble protective coat
07/1998
07/28/1998	US5785012 Acoustically enhanced combustion method and apparatus
03/1998
03/12/1998	WO1998009809A1 Stainless steel sheet covered with alkali-soluble protective coat
03/12/1998	CA2236006A1 Alkali-soluble protective-film coated stainless steel sheet
07/1994
07/13/1994	CN2171772Y Reverse burning hot pipe boiler with double furnace zone
07/1991
07/30/1991	CA1286932C Compact modular hot water heater and tank
12/1989
12/12/1989	CA1263846A1 Composite tube for heating gases
04/1989
04/04/1989	US4817672 Composite tube for heating gases
11/1988
11/08/1988	CA1244402A1 Heat exchanger and process for cooling gases
08/1986
08/20/1986	EP0191515A1 Composite tube for heating gases
05/1986
05/20/1986	US4589473 Process and heat exchanger for cooling gases
11/1985
11/06/1985	EP0160161A1 Heat exchanger for cooling gases
04/1984
04/10/1984	CA1165195A1 Fluidised bed boilers
11/1983
11/01/1983	US4412509 Energy conversion system and components thereof
08/1976
08/24/1976	US3976129 Spiral concentric-tube heat exchanger