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Class Information
Number: 122/15.1
Name: Liquid heaters and vaporizers > Stand boiler (e.g., water heater, etc.) > Heated by liquid or steam (e.g., indirect heating, etc.)
Description: Subject matter wherein the stand boiler uses a hot fluid that is shapeless, virtually incompressible, has a definite volume (e.g., water, etc.) or a vapor emitted from such a fluid to transfer thermal energy to the water in the stand boiler.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7628121 |
Apparatus and process for cooling hot gas |
Dec. 8, 2009 |
| 7617802 |
Condensation heat exchanger |
Nov. 17, 2009 |
| 7503288 |
Plastic boiler without flange |
Mar. 17, 2009 |
| 7415942 |
Steam-heating apparatus |
Aug. 26, 2008 |
| 7337752 |
Instantaneous fuel-fired water heater with low temperature plastic vent structure |
Mar. 4, 2008 |
| 7316205 |
Steam-heating apparatus |
Jan. 8, 2008 |
| 7316204 |
Steam-heating apparatus |
Jan. 8, 2008 |
| 7302916 |
Condensation heat exchanger with a gas/air heat collector |
Dec. 4, 2007 |
| 7089885 |
Steam-heating apparatus |
Aug. 15, 2006 |
| 7017528 |
Steam-heating apparatus |
Mar. 28, 2006 |
| 6983723 |
Method and apparatus for providing on-demand hot water |
Jan. 10, 2006 |
| 6945197 |
Water heater |
Sep. 20, 2005 |
| 6772713 |
Method and apparatus for providing and utilizing outside air for boiler combustion |
Aug. 10, 2004 |
| 6739288 |
Steam heating device |
May. 25, 2004 |
| 6427638 |
Water heater apparatus |
Aug. 6, 2002 |
| 6415744 |
Combustion boiler |
Jul. 9, 2002 |
| 6296050 |
Heat exchanger |
Oct. 2, 2001 |
| 6283067 |
Potable water temperature management system |
Sep. 4, 2001 |
| 6244224 |
Heating system for tanks for storing liquid products |
Jun. 12, 2001 |
| 6101984 |
Fluid heater and method of heating fluid |
Aug. 15, 2000 |
| 5810977 |
Purifying water by superheated steam |
Sep. 22, 1998 |
| 5596952 |
Indirect water heater |
Jan. 28, 1997 |
| 5546760 |
Generator for absorption heat pumps |
Aug. 20, 1996 |
| 5485879 |
Combined water heater and heat exchanger |
Jan. 23, 1996 |
| 5372185 |
Combined water heater and heat exchanger |
Dec. 13, 1994 |
| 5357906 |
Submersible liquid-to-liquid heat exchanger |
Oct. 25, 1994 |
| 5233970 |
Semi-instantaneous water heater with helical heat exchanger |
Aug. 10, 1993 |
| 5228413 |
Multiple boiler |
Jul. 20, 1993 |
| 5209284 |
Reduced pressure heat treating device |
May. 11, 1993 |
| 5190025 |
Motor vehicle drinking water warming and heating device |
Mar. 2, 1993 |
| 4852524 |
Gas fired water heater |
Aug. 1, 1989 |
| 4823770 |
Combination hydronic space heater and tankless hot water heater |
Apr. 25, 1989 |
| 4768495 |
Heating apparatus and method |
Sep. 6, 1988 |
| 4732590 |
Flash economizer |
Mar. 22, 1988 |
| 4724798 |
Outdoor woodburning furnace |
Feb. 16, 1988 |
| 4686940 |
Device for heating a fluid and for cleaning waste gases from heating systems |
Aug. 18, 1987 |
| 4681066 |
Boiler for boiling mash or wort |
Jul. 21, 1987 |
| 4667730 |
Temperature regulating apparatus for a laboratory reaction vessel arrangement |
May. 26, 1987 |
| 4637347 |
Improved continuous low fluid exchange water heater |
Jan. 20, 1987 |
| 4572111 |
Heating apparatus |
Feb. 25, 1986 |
| 4548163 |
High efficiency fluid heater |
Oct. 22, 1985 |
| 4530288 |
Heated railway tank car |
Jul. 23, 1985 |
| 4524726 |
Utility water boiler |
Jun. 25, 1985 |
| 4510891 |
Liquid boiler, particularly utility-water boiler |
Apr. 16, 1985 |
| 4492091 |
Apparatus and method for controlling a heat pump water heater |
Jan. 8, 1985 |
| 4480370 |
Heated railroad tank car |
Nov. 6, 1984 |
| 4409958 |
Water heating method and apparatus |
Oct. 18, 1983 |
| 4408567 |
Furnace construction |
Oct. 11, 1983 |
| 4390007 |
Fuel preheater |
Jun. 28, 1983 |
| 4347972 |
Apparatus for production of hot water |
Sep. 7, 1982 |
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