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Class Information
Number: 236/68B
Name: Automatic temperature and humidity regulation > Motors > Relay > Auxiliary heater > Auxiliary heater applied to main temperature sensing means

Patents under this class:
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Patent Number Title Of Patent Date Issued
7858907 Electric switching circuit for a clothes dryer Dec. 28, 2010
6986468 Home comfort control using combined temperature and humidity measurements Jan. 17, 2006
6929189 Thermostat device and temperature control method and system for engine coolant Aug. 16, 2005
6820435 Cooling enhancement device Nov. 23, 2004
6357667 Method and apparatus optically coupling thermostat to control a fan Mar. 19, 2002
6149065 Modulating thermostat for gas oven burner Nov. 21, 2000
5655709 Electrical control system for relay operation responsive to thermostat input having improved efficiency Aug. 12, 1997
5619860 Controlling apparatus for an air conditioner Apr. 15, 1997
5615829 Air conditioning system thermostat having adjustable cycling rate Apr. 1, 1997
5467920 Thermostat with adjustment for the cycling rate of the heating plant Nov. 21, 1995
5423479 Thermoelectric actuator for temperature control systems Jun. 13, 1995
5324112 Detector device for evaluating the thermal comfort conditions in an environment, for example, in the interior of a motor vehicle Jun. 28, 1994
5240178 Active anticipatory control Aug. 31, 1993
5102230 Thermal environment sensor with means to estimate the wind velocity Apr. 7, 1992
5070932 Thermostat with enhanced outdoor temperature anticipation Dec. 10, 1991
5044768 Thermal environment sensor with means to estimate the wind velocity Sep. 3, 1991
5039010 Relay-controlled anticipation in a two switch thermostat Aug. 13, 1991
5014520 Control device having a coiled compression shape memory spring, refrigerator system utilizing the control device and methods of making the same May. 14, 1991
5002226 Thermostat with mechanical heat anticipation and droop control Mar. 26, 1991
4979672 Shape memory actuator Dec. 25, 1990
4889179 Two wire adaptive system for interconnecting a four wire thermostat and a four wire, heating/cooling system Dec. 26, 1989
4886110 HVAC zone control system Dec. 12, 1989
4879879 Apparatus for controlling a thermostatic expansion valve Nov. 14, 1989
4844117 Fluid level controller Jul. 4, 1989
4842192 Microprocessor controlled thermostat for dryer Jun. 27, 1989
4775100 Line voltage setback thermostat Oct. 4, 1988
4760954 Auxiliary equipment for the thermostatic valve of a radiator Aug. 2, 1988
4725713 Electrically heated hose employing a hose simulator for temperature control Feb. 16, 1988
4703795 Control system to delay the operation of a refrigeration heat pump apparatus after the operation of a furnace is terminated Nov. 3, 1987
4681296 Valve construction and method of making the same Jul. 21, 1987
4598764 Refrigeration heat pump and auxiliary heating apparatus control system with switchover during low outdoor temperature Jul. 8, 1986
4587403 Thermostat setback controller sub-base May. 6, 1986
4582249 Zone control system for energy conservation Apr. 15, 1986
4524908 Set-back thermostat assembly Jun. 25, 1985
4500036 Actuating mechanism Feb. 19, 1985
4497437 Control device with a bimetallic element unilaterally fastened in a housing Feb. 5, 1985
4489882 Variable time constant anticipation thermostat Dec. 25, 1984
4484725 Bimetal driven control valve Nov. 27, 1984
4441329 Temperature control system Apr. 10, 1984
RE31502 In-line energization and de-energization of an external load in series with an external source of electricity in response to externally sensed parameters Jan. 17, 1984
4412650 Snap acting heat motor operated gas valve Nov. 1, 1983
4375753 Air conditioner Mar. 8, 1983
4347976 Regulating circuit for the valve of a refrigeration plant Sep. 7, 1982
4328528 Two-wire condition control circuit means May. 4, 1982
4324745 Device for automatically regulating a choke valve in a carburetor for an internal combustion engine Apr. 13, 1982
4315137 Thermostat range controller Feb. 9, 1982
4270597 Thermostat and circuit Jun. 2, 1981
4254906 Thermostat with simulated heat anticipation Mar. 10, 1981
4248377 Controllable heating means for small masses, particularly the expansion medium in heat setting apparatuses Feb. 3, 1981
4247040 Method and mechanism for switching heat generating equipment Jan. 27, 1981

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