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Class Information
Number: 392/401
Name: Electric resistance heating devices > Heating devices (class 219 subclass 200) > Vaporizer > Liquid evaporant (e.g., water, etc.) > In-line connected closed tank (i.e., pressurized) > With internal heating element
Description: Subject matter wherein the closed tank includes an electrical resistance heating element which is supported within the vessel.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7452424 |
Vaporizer |
Nov. 18, 2008 |
| 7362964 |
Humidifier with ultraviolet lamp |
Apr. 22, 2008 |
| 7213541 |
Steam generating method and apparatus for simulation test chambers |
May. 8, 2007 |
| 7162149 |
Gaseous fluid generation system |
Jan. 9, 2007 |
| 7061252 |
Electrical arcing protection circuit |
Jun. 13, 2006 |
| 7049550 |
Overheated steam oven |
May. 23, 2006 |
| 6868869 |
Sub-atmospheric pressure delivery of liquids, solids and low vapor pressure gases |
Mar. 22, 2005 |
| 6647931 |
Household steam generator apparatus |
Nov. 18, 2003 |
| 6415812 |
Control equipment for keeping light oil vapor at stable pressure and constant temperature |
Jul. 9, 2002 |
| 6280793 |
Electrostatic method and apparatus for vaporizing precursors and system for using same |
Aug. 28, 2001 |
| 6258170 |
Vaporization and deposition apparatus |
Jul. 10, 2001 |
| 6167845 |
Instantaneous water heater |
Jan. 2, 2001 |
| 6067403 |
Household electrical steam generator with stabilized boiler water level, particularly for smoothing irons |
May. 23, 2000 |
| 5968388 |
Steam cooking appliance with a corrugated heat transfer membrane and thermally conductive filler |
Oct. 19, 1999 |
| 5943473 |
Heated cartridge humidifier |
Aug. 24, 1999 |
| 5915071 |
Steam cleaning apparatus |
Jun. 22, 1999 |
| 5881207 |
Steam generator with automatic supply and a process for measuring the level of liquid in such a generator |
Mar. 9, 1999 |
| 5835678 |
Liquid vaporizer system and method |
Nov. 10, 1998 |
| 5835677 |
Liquid vaporizer system and method |
Nov. 10, 1998 |
| 5719990 |
Hot water and electricity generator |
Feb. 17, 1998 |
| 5698037 |
Integrated delivery system for chemical vapor from non-gaseous sources for semiconductor processing |
Dec. 16, 1997 |
| 5673360 |
Travel Humidifier |
Sep. 30, 1997 |
| 5537996 |
Heated respiratory humidifier conduit |
Jul. 23, 1996 |
| RE35283 |
High efficiency water distiller |
Jun. 25, 1996 |
| 5467424 |
Apparatus and method for generating steam |
Nov. 14, 1995 |
| 5399200 |
Module in an integrated delivery system for chemical vapors from liquid sources |
Mar. 21, 1995 |
| 5367605 |
Boiler with deformable wall for removing scale |
Nov. 22, 1994 |
| 5361322 |
Ejector tube humidifier for blowerless mixing of air and steam |
Nov. 1, 1994 |
| 5359692 |
Electronic-type vaporizer for aircraft humidification having a single use disposable steam generation container |
Oct. 25, 1994 |
| 5355840 |
Steam generator controlled by pressure switch |
Oct. 18, 1994 |
| 5343747 |
Normalized relative humidity calibration |
Sep. 6, 1994 |
| 5313550 |
Steam humidifier with modular construction and electrodes to generate steam |
May. 17, 1994 |
| 5307440 |
Electrically heated steam generator with a proportionally controlled steam and power take-off for supplying steam and electric power to an external user |
Apr. 26, 1994 |
| 5305415 |
Electric steam generator having molded plastic lid and base secured together by a snap-fit connection arrangement |
Apr. 19, 1994 |
| 5252134 |
Integrated delivery system for chemical vapor from non-gaseous sources for semiconductor processing |
Oct. 12, 1993 |
| 5189726 |
Steam producing apparatus for home use with low cold water reservoir level steam output stoppage |
Feb. 23, 1993 |
| 5187772 |
Electric water heater with radially extending overlapped horizontal heating element arranged in vertically spaced aligned sets |
Feb. 16, 1993 |
| 5067169 |
Portable humidifier |
Nov. 19, 1991 |
| 5063609 |
Steam generator |
Nov. 5, 1991 |
| 5060560 |
Low-water element safety control |
Oct. 29, 1991 |
| 5013889 |
Electric blood warmer utilizing heating by condensation |
May. 7, 1991 |
| 4914275 |
Regasifier |
Apr. 3, 1990 |
| 4823767 |
Apparatus for steaming food |
Apr. 25, 1989 |
| 4674402 |
Apparatus for thawing, retarding, and proofing bakery goods |
Jun. 23, 1987 |
| 4656335 |
Start-up control system and vessel for LMFBR |
Apr. 7, 1987 |
| 4645904 |
Liquefied gas vaporizer unit |
Feb. 24, 1987 |
| 4640233 |
Model steam generator |
Feb. 3, 1987 |
| 4605838 |
Electric vapor boiler |
Aug. 12, 1986 |
| 4551611 |
Espresso coffee machine control system displaying boiler temperature and pressure |
Nov. 5, 1985 |
| 4480173 |
Water heater |
Oct. 30, 1984 |
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