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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 |
| 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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