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Class Information
Number: 392/358
Name: Electric resistance heating devices > Heating devices (class 219 subclass 200) > Convection space heater > With intermediate heat absorber > With fluid heat absorber > By fan blower
Description: Subject matter wherein the air to be heated is directed to the heat absorber by a rotating fan.

Patents under this class:

Patent Number Title Of Patent Date Issued
8567090 Method of, and apparatus for, treating the waste air from heated laundry machines Oct. 29, 2013
7565066 Food transport containers Jul. 21, 2009
7500760 Light with heater Mar. 10, 2009
6078024 Air conditioning apparatus having electric heating member integrated with heating heat exchanger Jun. 20, 2000
5721804 Y-shaped portable electric space heater with value to reduce pressure within the boiler Feb. 24, 1998
5299278 Forced air circulation electric convection space heating system utilizing heated air discharge to preheat air to be heated Mar. 29, 1994
5245691 Electric heater circuit Sep. 14, 1993
5131461 Heating apparatus Jul. 21, 1992
5121788 Self contained heat exchange apparatus Jun. 16, 1992
5076350 Heat tube designed plate heat exchanger Dec. 31, 1991
4870253 Mobile apparatus for heating rooms Sep. 26, 1989
4825847 Air furnace system May. 2, 1989
4718601 Heating unit Jan. 12, 1988
4705213 Heat unit recycler Nov. 10, 1987
4518847 Electrically-powered portable space heater May. 21, 1985
4420677 Heating system Dec. 13, 1983
4346048 Humidifying system for mobile vehicles Aug. 24, 1982
4310746 Electric fluid heating apparatus Jan. 12, 1982
4242569 Multiple tank electric water heater Dec. 30, 1980
4223205 Central heating systems furnace having a self-contained electric steam heating unit Sep. 16, 1980
4200783 Apparatus for collecting and thermally storing energy Apr. 29, 1980
4171772 Package heat exchanger system for heating and cooling Oct. 23, 1979
4105894 Steam heated hot air furnace having an electric steam boiler Aug. 8, 1978
4102152 Heat exchange device for air conditioners Jul. 25, 1978
4053732 Portable electric room air heater Oct. 11, 1977
4024904 Forced air range with thermal exchange fluid May. 24, 1977
3941311 Heating unit Mar. 2, 1976

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