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Class Information
Number: 236/16
Name: Automatic temperature and humidity regulation > Combined draft and check control
Description: Devices controlling the draft damper and check damper of a stove or furnace according to changes in the temperature of apartment or element heated.










Patents under this class:

Patent Number Title Of Patent Date Issued
8626643 System and method for a utility financial model Jan. 7, 2014
7025280 Adaptive real time control of a reticle/mask system Apr. 11, 2006
6849234 System and method for controlling an ultraviolet air treatment device for return air duct applications Feb. 1, 2005
5056500 Furnace damper means Oct. 15, 1991
4402454 Gas flue damper and thermostat metal therefore Sep. 6, 1983
4375872 Draft control for stoves and furnaces Mar. 8, 1983
4347832 Controlled air intake apparatus for furnaces and the like Sep. 7, 1982
4274392 Controlled air intake apparatus for furnaces and the like Jun. 23, 1981
4206742 Heat extractor and shield for room stoves and the like Jun. 10, 1980
4174942 Flue control assembly Nov. 20, 1979
4050628 Heat reclaimer Sep. 27, 1977
4021187 Automatic flue gate May. 3, 1977
3999710 Auxiliary heating equipment Dec. 28, 1976
3982525 Hot air furnace Sep. 28, 1976
3941533 Apparatus for making synthetic resin carpeting and the like Mar. 2, 1976
3934796 Heating system with fuel saving draft retarder Jan. 27, 1976











 
 
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