| Patents for G05D 23 - Control of temperature (28,546) |
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| 03/15/1989 | CN2034358U Electric warming mattress with ptc multipoint automatic temp. limiting and controlling feature |
| 03/15/1989 | CN2034301U Bilaterial scr thermosister |
| 03/15/1989 | CN2034300U Four-section, temp. autochange controlling instrument |
| 03/15/1989 | CN2034176U Double temp. heating furnace for semi-conductor crystal growth |
| 03/14/1989 | US4812963 Plural cooking computer communication system |
| 03/14/1989 | US4812733 Computer element performance enhancer |
| 03/14/1989 | US4812625 Temperature control system for cooking apparatus |
| 03/14/1989 | US4812051 Apparatus for investigating thermal transformations |
| 03/14/1989 | CA1251254A1 Ferromagnetic element with temperature control |
| 03/09/1989 | DE3729088A1 Shearer loader or selective-cut heading machine for underground operation |
| 03/08/1989 | EP0306235A2 Control apparatus for water temperature and water flow rate |
| 03/07/1989 | US4809517 Blower controlling device for automobile air-conditioning system |
| 03/07/1989 | US4809516 Residential heating cooling and energy management system |
| 03/02/1989 | DE3727345A1 Air-conditioning ventilator combination for heating and cooling motor vehicles and rooms |
| 03/01/1989 | EP0305221A2 Cordless iron having a heater whose temperature is controlled by using pulse signal |
| 03/01/1989 | CN2033454U Electric fan automatic controlled by temperature |
| 02/28/1989 | US4807444 Air flow control device |
| 02/28/1989 | CA1250639A1 Air conditioner |
| 02/28/1989 | CA1250442A1 System for controlling flow rate of refrigerant |
| 02/23/1989 | WO1989001729A1 Time delay circuit for heating appliances |
| 02/23/1989 | DE3726884A1 Arrangement for limiting the temperature of a liquid contained in the conduits of a heating, ventilating or air-conditioning lines system |
| 02/21/1989 | US4807144 Temperature control system for glass sheet furnace |
| 02/21/1989 | US4806832 Fan with temperature controlled rotation speed |
| 02/21/1989 | CA1250358A1 Vehicle accessory control system |
| 02/21/1989 | CA1250357A1 Three-terminal controller for fiber glass bushing |
| 02/21/1989 | CA1250206A1 Fail-safe oil flow control apparatus |
| 02/16/1989 | DE3726505A1 Method for operating a building heating installation and apparatus for carrying out the method |
| 02/15/1989 | EP0303395A2 Electrical storage heaters |
| 02/15/1989 | EP0303394A2 Systems for controlling supply of electric current during off-peak supply period |
| 02/14/1989 | US4805122 Temperature control system for cutaneous gas monitor |
| 02/14/1989 | US4804902 Linear, low EMI/RFE fan control circuit |
| 02/14/1989 | US4804892 Collectorless direct current motor, driver circuit for a drive and method of operating a collectorless direct current motor |
| 02/14/1989 | US4804141 Thermally responsive valve |
| 02/14/1989 | CA1250013A1 Electric heating circuit |
| 02/09/1989 | WO1989001279A1 Electric toaster |
| 02/09/1989 | DE3823771A1 Thermostatic valve for a cooling system of an engine of a motor vehicle |
| 02/09/1989 | DE3725551A1 Electrically heated boiling down pot esp. for vegetables or fruit - has at least one electric heater and thermostatic switch as opener for switching heater on and off and thermostatic switch as closer |
| 02/08/1989 | EP0302580A1 Heating apparatus |
| 02/08/1989 | EP0122287B1 Temperature control system for electrically heated hose utilizing hose simulator temperature detection |
| 02/08/1989 | CN2032316U Universal thermometer |
| 02/08/1989 | CN2032299U Multifunctional electronic temp. controller for refrigerator |
| 02/08/1989 | CN1030886A Process and machine for welding plastic parts having built-in windings |
| 02/07/1989 | US4803344 Apparatus and process for controlling the simmering or cooking time in a cooking vessel |
| 02/07/1989 | US4802621 Thermal modulating control valve |
| 02/07/1989 | CA1249869A1 Thermostat setback controller sub-base |
| 02/07/1989 | CA1249731A1 Constant evaporator pressure slide valve for screw compressor refrigeration system |
| 02/02/1989 | DE3724430A1 Air-conditioning system |
| 02/02/1989 | DE3724343A1 Display for impermissible operating states, especially in the case of domestic appliances |
| 02/02/1989 | DE3724090A1 Device for controlling the temperature of an electrical heating element |
| 02/02/1989 | DE3724005A1 Process-controlled heating device |
| 02/02/1989 | DE3721347A1 Heating regulator |
| 02/01/1989 | CN2031946U Oil-cracking reaction apparatus with automatic temp. control |
| 02/01/1989 | CN1030702A 血液灌流仪 Hemoperfusion device |
| 01/31/1989 | US4802115 Multi-unit communicating system |
| 01/31/1989 | US4801082 Security activated load control |
| 01/31/1989 | CA1249437A1 Optimum start/stop dependent upon both space temperature and outdoor air temperature |
| 01/26/1989 | DE3742269C1 Method and arrangement for temperature control |
| 01/25/1989 | EP0300761A2 Automotive air conditioning system |
| 01/25/1989 | EP0300722A2 Automotive air conditioning system |
| 01/25/1989 | EP0300639A1 Shower system |
| 01/25/1989 | EP0300468A2 Automotive air conditioning system |
| 01/25/1989 | CN2031546U Electronic temp. controller with cut-off protector for refrigeration equipment |
| 01/24/1989 | US4800292 Temperature sensing circuit |
| 01/19/1989 | DE3722230A1 Heating regulator |
| 01/18/1989 | EP0299833A1 Method and apparatus for welding together pieces of plastic material provided with an integrated coil |
| 01/18/1989 | EP0299696A2 Fluid temperature, flow rate, and volume control system |
| 01/18/1989 | EP0299635A1 Hot melt adhesive applicator and temperature control circuit therefor |
| 01/18/1989 | EP0175126B1 Control device for a space heating apparatus |
| 01/17/1989 | US4798971 Apparatus for controlling device start up and off/on running periods |
| 01/12/1989 | WO1989000309A1 Bushing balance controller |
| 01/12/1989 | DE3819235A1 Circuit arrangement for monitoring the serviceability of resistive heating elements |
| 01/12/1989 | DE3722000A1 Device for measuring the temperature of a medium, in particular for measuring the temperature of the passenger compartment of a motor vehicle |
| 01/12/1989 | DE3721270A1 Circuit configuration for automatic control of a heating plant |
| 01/11/1989 | EP0298415A2 Method and Apparatus for thermostatic control |
| 01/11/1989 | EP0298413A2 Control apparatus of an electric appliance |
| 01/11/1989 | CN2030734U Automatic and safe temperature-controller for incubator |
| 01/11/1989 | CN2030718U Thermostat for spectrophotometer |
| 01/10/1989 | US4796803 Air volume regulator valve |
| 01/05/1989 | DE3820412A1 Air conditioner for motor vehicles |
| 01/05/1989 | DE3721153A1 Method for the thermostatically controlled matching of the heat output of a thermal radiator, as well as device for carrying out the method |
| 01/05/1989 | DE3720972A1 Temperature-control equipment for heating cabinets with an expansion thermostat |
| 01/04/1989 | EP0297884A1 Bath filler |
| 01/04/1989 | EP0297883A1 Thermostatic valves |
| 01/04/1989 | EP0297544A2 Hot water supply system |
| 01/04/1989 | EP0297185A1 Method and apparatus for making fused connections |
| 01/04/1989 | CN2030346U Double-logic programmable temperature controller |
| 01/03/1989 | US4796207 For temperature regulation |
| 01/03/1989 | US4795886 Temperature control in which the control parameter is the degree of imperfection in the impedance matching |
| 01/03/1989 | US4795089 Room air conditioner |
| 01/03/1989 | CA1248201A1 Residential heating, cooling and energy management system |
| 12/28/1988 | EP0296688A2 Pultrusion process |
| 12/28/1988 | CN88211655U Double-temp. control constant temp. cabinet with illuminating device |
| 12/27/1988 | US4794537 Scheduled comfort control system with adaptive compensation for stall and overshoot |
| 12/27/1988 | US4794512 Digital controlling device |
| 12/27/1988 | US4793553 Infrared thermostat control |
| 12/21/1988 | EP0295466A2 Valve for controlling the oil temperature of a drive mechanism |
| 12/21/1988 | EP0295377A2 Temperature regulation arrangement and method, especially for cooling centrifuges |
| 12/21/1988 | CN88102154A Control method for providing heat energy of heat energy transfering apparatus |
| 12/20/1988 | CA1247213A1 Thermostat means adaptively controlling the amount of overshoot or undershoot of space temperature |
| 12/20/1988 | CA1247212A1 Distributed environmental/load control system |