Patents for G05D 23 - Control of temperature (28,546)
02/1981
02/03/1981US4248374 Engine cooling system thermostat and method of making the same
02/03/1981US4248055 Hot gas bypass control for centrifugal liquid chillers
02/03/1981US4248051 System and method for controlling air conditioning systems
02/03/1981CA1094917A1 Water mixing valve with temperature regulation, temperature setting and volume control
02/03/1981CA1094913A1 Fuel vapor vent valve
02/03/1981CA1094837A1 Dual sensor refrigeration control
02/03/1981CA1094834A1 Bimaterial demand-flow cryostat
01/1981
01/28/1981EP0023052A1 A method and an apparatus for air conditioning for vehicles by controlling circulation of inside air and introduction of outside air
01/27/1981US4247041 Thermally responsive valve device
01/27/1981US4247040 Method and mechanism for switching heat generating equipment
01/27/1981US4246956 Control scheme for a solar assisted heat pump
01/20/1981USRE30485 Air conditioning control system
01/20/1981US4246641 Automatic temperature calibration of thermal analyzers
01/20/1981US4245782 Fusible linkage aquatic device that will override the failure of a defective thermostat or the like within a motor
01/20/1981US4245781 Engine cooling system thermostat and method of making the same
01/20/1981US4245780 Temperature regulator assembly and signal modulator therefor
01/20/1981US4245549 Control device diaphragm stack and method of making the same
01/13/1981US4244517 Temperature control for variable volume air conditioning system
01/13/1981US4244516 Control unit for starting a climatization procedure in a building
01/13/1981US4244182 Apparatus for controlling refrigerant feed rate in a refrigeration system
01/13/1981CA1093304A1 Operating optimization for plural parallel connected chillers
01/07/1981EP0021907A1 Device and process for the reduction of thermal reactions in monolithic integrated circuits
01/07/1981EP0021745A1 An automatic temperature control system for a vehicle passenger compartment
01/07/1981EP0021516A1 An electric control device for a central heating boiler
01/07/1981EP0021353A1 Air conditioner control method and apparatus
01/07/1981EP0021278A1 Extruder temperature controller
01/07/1981EP0021202A1 Thermostatic expansion valve
01/07/1981EP0020462A1 Damper for an air distribution system
01/06/1981US4243875 Temperature control for resistance heating element
01/06/1981US4243441 Method for metal strip temperature control
01/06/1981US4243173 Pneumatic optimizer
01/06/1981CA1093182A1 Refrigeration control system
01/06/1981CA1092954A1 Heating workpieces by high current intensity glow discharge
12/1980
12/30/1980US4241873 Temperature responsive valve device
12/30/1980US4241872 Pneumatically operated thermostat construction and method of making the same
12/30/1980US4241868 Fluid temperature mixing indicator
12/30/1980US4241587 Refrigerating apparatus, especially refrigerator or freezer
12/30/1980CA1092382A1 Control scheme for a solar assisted heat pump
12/24/1980WO1980002871A1 Extruder temperature controller
12/23/1980US4241288 Electric rice cooker with two heaters
12/23/1980US4240580 Temperature dependent electronic control switch
12/23/1980US4240579 Thermostatically controlled heating system
12/23/1980CA1092217A1 Electronic reversible motor operated valve assembly
12/23/1980CA1091941A1 Valve for refrigeration plant
12/23/1980CA1091940A1 Valve for liquid injection into a refrigerant evaporator
12/16/1980US4240077 Thermostat
12/16/1980US4239177 Electrically operated valve with balanced port design
12/16/1980US4239154 Thermally responsive valve
12/16/1980US4239153 Multiple temperature actuated fluid-electric control device
12/16/1980US4239152 Temperature responsive valve assembly
12/16/1980US4238931 Waste heat recovery system controller
12/16/1980CA1091786A1 Air conditioning unit control
12/16/1980CA1091785A1 System for dispensing and controlling the temperature of hot melt adhesive
12/16/1980CA1091738A1 Leakage current thermostat
12/10/1980EP0020126A1 Pushbutton controlled pneumatic valve and actuator and temperature control systems using such valves and actuators
12/09/1980US4238812 Circuit protection devices comprising PTC elements
12/09/1980US4238672 Temperature control circuitry
12/09/1980US4238670 Method and device for regulating the cleaning temperature of an oven
12/09/1980US4237967 Motor vehicle air conditioner control circuit
12/09/1980US4237966 Energy conserving heating and air conditioning system
12/09/1980US4237771 Pneumatically operated actuator and method of making the same
12/02/1980US4237467 Thermal writing device for recording apparatus
12/02/1980US4237368 Temperature sensor for glass-ceramic cooktop
12/02/1980US4236898 Sulfurized fatty acid amide, ester or ester-amide of an oxyalkylated amine
12/02/1980US4236669 Thermostatic expansion valve with lead-lag compensation
12/02/1980CA1090902A1 Mold temperature control system
12/02/1980CA1090597A1 Method and aggregate for optimizing the heat economy in buildings by means of a heat pump
12/02/1980CA1090577A1 Glass sheet temperature control apparatus and method
11/1980
11/26/1980EP0019416A1 An air conditioner control apparatus
11/26/1980EP0019344A1 Method and device for controlling the temperature inside an enclosed space
11/26/1980EP0019300A1 Heating and/or cooling system
11/26/1980EP0019276A2 Heating apparatus with programmable timer
11/25/1980US4236084 Apparatus and method for in-line energization and de-energization of external loads in series with an external source of electricity in response to externally sensed parameters
11/25/1980US4236064 High-accuracy temperature control with heat resistance compensation
11/25/1980US4235577 Automatic curing cycle control system
11/25/1980US4235368 Thermostat assembly
11/25/1980CA1090443A1 Time controlled thermostat with battery operated timer
11/18/1980US4234927 Micro processor controlled sensor system for apartment house
11/18/1980US4234784 Cooking appliance controls
11/18/1980US4234782 Space heating using off-peak electric heat storage
11/18/1980US4234124 Control system for gas kiln
11/18/1980CA1089996A1 Safety output control for a data processing system emitting binary signals
11/18/1980CA1089924A1 Device for the control of the light emission of a gasdischarge lamp
11/14/1980EP0015283A4 Resistance measuring circuit and controller using the same.
11/12/1980EP0018821A1 Temperature control for liquid in a container
11/12/1980EP0018502A1 Process and installation for the homogeneous-radiation air conditioning of a space, closed on all sides, especially of a tepidarium
11/11/1980US4233498 Power control for appliance using high inrush current element
11/11/1980US4232819 Control system for environmental apparatus
11/11/1980US4232818 Control unit for starting a climitization procedure in a building
11/11/1980US4232817 Adjustment control for a thermostatic valve
11/11/1980US4232531 Thermostatic control apparatus for evaporative cooling system
11/04/1980US4231515 Pressurized control signal apparatus
11/04/1980US4231513 Thermally actuated diffuser
11/04/1980US4231512 Thermostat
11/04/1980US4231352 Interface circuit for adding solar heat to a building heating and cooling system
11/04/1980CA1088902A1 Method of and apparatus for controlling a heat transfer plant
10/1980
10/30/1980WO1980002352A1 Method and apparatus for regulating the temperature of a heating element in a water heater
10/28/1980US4230731 Microwave cooking method and control means
10/21/1980US4229753 Voltage compensation of temperature coefficient of resistance in an integrated circuit resistor
10/21/1980US4229687 Temperature maintained battery system