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Class Information
Number: 122/33
Name: Liquid heaters and vaporizers > Indirectly heated > Separate fluid > Surface > Furnace
Description: Devices, provided with a furnace forming a part of the unitary structure.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7617802 |
Condensation heat exchanger |
Nov. 17, 2009 |
| 7600489 |
Heat exchanger having plural tubular arrays |
Oct. 13, 2009 |
| 7552701 |
Boiler for making super heated steam and its use |
Jun. 30, 2009 |
| 7523721 |
Heat exchanger and water heater |
Apr. 28, 2009 |
| 7458340 |
Water heater |
Dec. 2, 2008 |
| 7428883 |
Heat exchanger and water heater |
Sep. 30, 2008 |
| 7392767 |
Method and apparatus for heating a circulating fluid using a quench column and an indirect heat exchanger |
Jul. 1, 2008 |
| 7353781 |
Arrangement structure of heat exchanger in condensing gas boiler |
Apr. 8, 2008 |
| 7302916 |
Condensation heat exchanger with a gas/air heat collector |
Dec. 4, 2007 |
| 7232471 |
Hydrogen generator and fuel cell system comprising the same |
Jun. 19, 2007 |
| 6990930 |
Steam generation apparatus and method |
Jan. 31, 2006 |
| 6983723 |
Method and apparatus for providing on-demand hot water |
Jan. 10, 2006 |
| 6647932 |
Compact boiler with tankless heater for providing heat and domestic hot water |
Nov. 18, 2003 |
| 6367429 |
Intermediate fluid type vaporizer |
Apr. 9, 2002 |
| 6152086 |
Heating apparatus and method for operation thereof |
Nov. 28, 2000 |
| 6026889 |
Single shell boiler |
Feb. 22, 2000 |
| 5775267 |
Instant hot water boiler structure |
Jul. 7, 1998 |
| 5588400 |
Method of generating steam in a forced-through-flow boiler |
Dec. 31, 1996 |
| 5529020 |
Tube lane pivoting device for nuclear steam generator with superposed elements |
Jun. 25, 1996 |
| 5359966 |
Energy converter using imploding plasma vortex heating |
Nov. 1, 1994 |
| 5315938 |
Heat accumulator |
May. 31, 1994 |
| 5207211 |
Multiple U-tube down fired water heater |
May. 4, 1993 |
| 5162104 |
Apparatus and method for indirectly heating a gas |
Nov. 10, 1992 |
| 5101772 |
Heat recovery system |
Apr. 7, 1992 |
| 5069169 |
Tube-in-shell heating apparatus |
Dec. 3, 1991 |
| 5037510 |
Integrated water distiller and/or water heater and/or furnace |
Aug. 6, 1991 |
| 5033414 |
Heat recovery system |
Jul. 23, 1991 |
| 4987954 |
Fuel reactor |
Jan. 29, 1991 |
| 4938204 |
Water heater or boiler with improved thermal efficiency |
Jul. 3, 1990 |
| 4909316 |
Dual-tube heat pipe type heat exchanger |
Mar. 20, 1990 |
| 4903641 |
Method and apparatus for extracting saturated steam in the synthesis of hydrogen chloride gas |
Feb. 27, 1990 |
| 4878533 |
Vaporization apparatus and method for producing curing gas |
Nov. 7, 1989 |
| RE33082 |
Combustion product condensing water heater |
Oct. 10, 1989 |
| 4836891 |
Self-contained oil well salt water concentration system |
Jun. 6, 1989 |
| 4730577 |
Steam generator for thermal recovery system |
Mar. 15, 1988 |
| 4691666 |
Liquid heater with closed loop heat transfer system |
Sep. 8, 1987 |
| 4674446 |
Gas dehydrator with gas recovery system |
Jun. 23, 1987 |
| 4633819 |
Water-sodium steam generator with straight concentric tubes and gas circulating in the annular space |
Jan. 6, 1987 |
| 4633820 |
High-efficiency thermal group |
Jan. 6, 1987 |
| 4621681 |
Waste heat boiler |
Nov. 11, 1986 |
| 4602682 |
Heat exchanger |
Jul. 29, 1986 |
| 4582121 |
Apparatus for and method of heat transfer |
Apr. 15, 1986 |
| 4526006 |
Heat transfer method and apparatus |
Jul. 2, 1985 |
| 4502626 |
Combustion product condensing water heater |
Mar. 5, 1985 |
| 4485865 |
Waste heat recovery system having thermal sleeve support for heat pipe |
Dec. 4, 1984 |
| 4482004 |
Waste heat boiler |
Nov. 13, 1984 |
| 4458138 |
Fast recovery electric fluid |
Jul. 3, 1984 |
| 4441544 |
Waste heat recovery system having thermal sleeve support for heat pipe |
Apr. 10, 1984 |
| 4426959 |
Waste heat recovery system having thermal sleeve support for heat pipe |
Jan. 24, 1984 |
| 4425902 |
Submersible device for heating liquids |
Jan. 17, 1984 |
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