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Class Information
Number: 122/32
Name: Liquid heaters and vaporizers > Indirectly heated > Separate fluid > Surface
Description: Devices having two separate compartments not in communication, the liquid to be vaporized being in one compartment and heated by a hot fluid in the other compartment.










Sub-classes under this class:

Class Number Class Name Patents
122/33 Furnace 109
122/34 Separator 84


Patents under this class:
1 2 3 4 5

Patent Number Title Of Patent Date Issued
8656868 Heat exchanger for thermo boiler Feb. 25, 2014
8573161 Hot-water supply system having dual pipe Nov. 5, 2013
8528503 Heat exchange system and method Sep. 10, 2013
8402927 Water heater with enhanced thermal efficiency Mar. 26, 2013
8376034 Radiant coolers and methods for assembling same Feb. 19, 2013
8354564 Production of dry alcohol Jan. 15, 2013
8236071 Methods and apparatus for cooling syngas within a gasifier system Aug. 7, 2012
8117996 Water heater Feb. 21, 2012
8087388 Water heater Jan. 3, 2012
8047145 Ammonia vaporization system using non-flue gas intermediate heat transfer medium Nov. 1, 2011
8015950 Single can-type composite heat source machine Sep. 13, 2011
7992526 Condensing water heater Aug. 9, 2011
7958853 Steam generator Jun. 14, 2011
7909005 Condensation heat exchanger including 2 primary bundles and a secondary bundle Mar. 22, 2011
7846226 Apparatus for cooling and scrubbing a flow of syngas and method of assembling Dec. 7, 2010
7823544 Steam boiler Nov. 2, 2010
7824178 Air transfer arm for boiler Nov. 2, 2010
7640749 Moisture separator and reheater Jan. 5, 2010
RE40307 Inlet baffle for water heater May. 13, 2008
7314024 Steam generator comprising an emergency feed water device Jan. 1, 2008
7267083 Condensing heat exchanger with double bundle of tubes Sep. 11, 2007
7232471 Hydrogen generator and fuel cell system comprising the same Jun. 19, 2007
7140328 Miniature vaporizers for use with chemical converters and energy devices Nov. 28, 2006
7011300 Steam humidifier and method Mar. 14, 2006
7000571 Heat exchanger, and in particular a steam generator having a convex bottom Feb. 21, 2006
6971335 Water heater Dec. 6, 2005
6948453 Hydrocarbon cracking Sep. 27, 2005
6914955 Heat exchanger tube support structure Jul. 5, 2005
6907846 Condensing gas boiler having structure of preventing corrosion caused by using heterogeneous metal Jun. 21, 2005
6810837 Apparatus and methods for controlling flow in BWR steam dryers Nov. 2, 2004
6604492 Vaporizer Aug. 12, 2003
6516754 Convective heating system for liquid storage tank Feb. 11, 2003
6510819 Inlet baffle for water heater Jan. 28, 2003
6498827 Heat exchanger tube support structure Dec. 24, 2002
6494169 Evaporator and method for manufacturing same Dec. 17, 2002
6435139 Waste heat boiler for cooling hot syngas Aug. 20, 2002
6394042 Gas fired tube and shell heat exchanger May. 28, 2002
6283068 Air-heated/hot-water type vaporizer and air-heated/hot-water type gas producing plant Sep. 4, 2001
6235235 System for extracting sodium metal from sodium hydroxide and a reductant of natural gas May. 22, 2001
6199515 Baffles for water heaters Mar. 13, 2001
6173680 Steam generator comprising an improved feedwater supply device Jan. 16, 2001
6032616 Rapid response hot water heater Mar. 7, 2000
5975030 Low-pressure feedwater preheater Nov. 2, 1999
5838083 Device for breaking eddies at a surface submerged by a turbulent flow Nov. 17, 1998
5711257 Sleeved boiler-reactor Jan. 27, 1998
5687675 Device for vaporizing the diphasic mixture of a cooling circuit during a depressurizing procedure Nov. 18, 1997
5596952 Indirect water heater Jan. 28, 1997
5549078 Device for superheating steam Aug. 27, 1996
5419391 Steam generator with axial flow preheater May. 30, 1995
5396948 Heat exchanger, in which the supply of secondary fluid takes place in the upper part by means of an overflow Mar. 14, 1995

1 2 3 4 5










 
 
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