| Patents for G05D 23 - Control of temperature (28,546) |
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| 07/12/1991 | CA2007716A1 Control method for a chip refiner |
| 07/11/1991 | WO1991009749A1 Heat-exchangr for a storage heater |
| 07/11/1991 | DE4000157A1 Thermostat for temp. dependent process control - has control pin attached to strap between sides of high expansion coefficient metal ring in low expansion coefficient housing |
| 07/10/1991 | EP0436374A2 Heater diagnostics and electronic control for a clothes dryer |
| 07/10/1991 | EP0435982A1 Self-calibrating temperature control device for a heated fuser roller |
| 07/10/1991 | CN2080393U Controller for medical constant temp. mattress capable of controlling temp. |
| 07/09/1991 | CA2030065A1 Temperature control system for a heating oven using a glass-ceramic temperature sensor |
| 07/09/1991 | CA1286019C Method of regulating room temperature and means for performing this method |
| 07/03/1991 | EP0434926A2 A programmable thermostat with a temperature display |
| 07/03/1991 | CN2080188U Self-adapt structure changeable temp. controller |
| 07/03/1991 | CN1013065B Control method for providing heat energy of heat energy transfering apparat |
| 07/03/1991 | CA2032857A1 Heater diagnostics and electronic control for clothes dryer |
| 07/02/1991 | US5029311 Elongated |
| 07/02/1991 | US5029244 Control system and methods of making and operating the same |
| 07/02/1991 | US5027527 Air-cooling system for precision measuring machines |
| 07/02/1991 | CA1285633C Cold/hot water discharging apparatus |
| 07/02/1991 | CA1285541C Auto thermostat |
| 06/27/1991 | DE4038714A1 Thermostat controlled mixer valve - has spherical sealing surfaces each end of control element |
| 06/27/1991 | DE3942732A1 Waermetauscher fuer eine standheizung Heat exchanger for a pre-heater |
| 06/26/1991 | EP0434170A1 Thermostat |
| 06/26/1991 | EP0433659A2 Thermostatic valve |
| 06/26/1991 | EP0433528A1 Control device with two flow controlled outlets |
| 06/26/1991 | CN1052560A Microcomputerized temp regulating system for if power supply with crystal thyratron |
| 06/26/1991 | CN1012992B Display and control device of refrigerator |
| 06/25/1991 | US5026971 Temperature control system for a heating oven using a glass-ceramic temperature sensor |
| 06/25/1991 | US5026022 Thermostatic expansion valve for low refrigerant flow rates |
| 06/25/1991 | US5025984 Setback thermostat with recovery start time selected non-linearly |
| 06/25/1991 | US5025983 Mixing valve |
| 06/25/1991 | CA1285253C Accessory for the thermostatic valve of a radiator |
| 06/20/1991 | DE3940976A1 Heating radiator control system - uses transmission of digital control signals via HF carrier fed along current supply network |
| 06/19/1991 | EP0432864A2 Temperature controlling apparatus |
| 06/19/1991 | EP0432644A2 Electronic control system for an oven |
| 06/19/1991 | EP0432341A2 Method of and means for controlling a heating system |
| 06/19/1991 | CN2079320U High precision controller constant temp. |
| 06/18/1991 | US5025248 Central control circuit |
| 06/18/1991 | US5025134 Means for refreshing a triac control circuit power supply |
| 06/18/1991 | US5025132 Microprocessor controlled food treatment cabinet with flash steamer and compensating humidity control routines |
| 06/18/1991 | US5024535 Semiconductor light source temperature measurement |
| 06/18/1991 | US5024379 Variable capacity heating appliance |
| 06/18/1991 | US5024265 Zone control system providing synchronization of system operation with the zone of greatest demand |
| 06/18/1991 | CA1285045C Switching circuit for a refrigerator control |
| 06/13/1991 | WO1991008532A1 Tap-water mixer unit |
| 06/13/1991 | DE4039007A1 IR temp. measuring appts. - produces IR image for conversion into IR temp. distribution data |
| 06/13/1991 | DE4020093C1 Adjustment for external temp. dependent heating control - automatically monitors each changing procedure after each characteristic change |
| 06/12/1991 | EP0432103A2 A thermostatic valve for regulating the flow of the cooling liquid in internal combustion engines |
| 06/12/1991 | EP0431832A2 Apparatus and method for controlling the operation of a semiconductor device |
| 06/12/1991 | EP0431601A2 Multi-type air heating apparatus utilizing phase variation of heating medium |
| 06/12/1991 | EP0431563A2 Air conditioning system having a control unit for fine adjustment of inverter input current |
| 06/12/1991 | EP0431398A2 Heating device with a phase change temperature controller |
| 06/12/1991 | CN2078899U Full-automatic temp-control alarm |
| 06/12/1991 | CN1052176A Sanitary mixing unit |
| 06/12/1991 | CA2031876A1 Electronic control system for an oven |
| 06/11/1991 | US5023801 Programmable - voltage - generator interface for decreasing the minimum voltage step |
| 06/11/1991 | US5023531 Dual hybrid demand refrigeration control apparatus |
| 06/11/1991 | US5023527 Control circuits, electronically commutated motor systems and methods |
| 06/11/1991 | US5023432 Programmable hot water heater control device |
| 06/11/1991 | US5023431 Linearized thermal feedback circuit and temperature controller circuit utilizing the same |
| 06/11/1991 | US5023430 Hybrid electronic control system and method for cold weather garment |
| 06/11/1991 | US5022756 Method and apparatus for spectrochemical analysis having maximum repeatability |
| 06/11/1991 | US5022583 Register blade mover |
| 06/11/1991 | US5022460 Control of staged heating and cooling apparatus by a four-wire thermostat |
| 06/11/1991 | US5022234 Control method for a variable displacement air conditioning system compressor |
| 06/11/1991 | CA1284809C Apparatus for cooking by electric heating including means for providing intermittent temperature control thereof |
| 06/11/1991 | CA1284793C Wax-pellet thermostat |
| 06/05/1991 | EP0429959A2 Apparatus for controlling a heating temperature |
| 06/05/1991 | CN2078499U Protective electricity-saving device for refrigerator |
| 06/05/1991 | CA2029611A1 Heating device with a phase change temperature controller |
| 06/04/1991 | USRE33600 Environmental control system for poultry houses |
| 06/04/1991 | US5021637 Method of controlling the supply of electric power to an electric sauna heater |
| 06/04/1991 | US5021634 Temperature controlled soldering iron employing a variable resistance heating element for temperature sensing |
| 06/04/1991 | US5020771 Proportional control valve |
| 05/30/1991 | WO1991007504A1 Improved dna polymerisation device |
| 05/29/1991 | DE4035667A1 Water mixer with single thermostat - has cold and hot water inlets and mixed water outlet, with valves |
| 05/29/1991 | CN2078019U Controller with micdrocomputor for freezer |
| 05/29/1991 | CN1012702B Air conditioner |
| 05/28/1991 | US5019972 Control method for an automatic bread baking machine |
| 05/28/1991 | US5019692 Thermostatic device for fuser |
| 05/28/1991 | US5019690 Boiling water dispenser having improved water temperature control system |
| 05/28/1991 | US5018665 Thermal relief valve |
| 05/28/1991 | US5018664 Thermostat having soft mounting structure |
| 05/28/1991 | US5018364 Internal air damper for a combination refrigerator-freezer |
| 05/28/1991 | US5018357 Temperature control system for a cryogenic refrigeration |
| 05/22/1991 | EP0427879A1 Device and methode for inductively heating workpieces |
| 05/22/1991 | EP0427775A1 Method of regulating a central or district heating plant by means of a differential pressure valve, and unit for working method. |
| 05/22/1991 | CN2077560U Automatic temp. regulator for greenhouse with multiple heating sources |
| 05/22/1991 | CN2077559U Dual-purpose temp. regulator for germinating and incubating |
| 05/21/1991 | US5017790 Temperature controller units for dental agar impression materials |
| 05/21/1991 | US5016469 Fluid viscoelastic test apparatus and method |
| 05/16/1991 | DE3933378A1 Arrangement for controlling valve for heating system - has heat exchanger with two mutually independent control thermostats acting on common control element |
| 05/15/1991 | EP0427662A2 Hypsometer with controlled heating specially for use in meteorologic radio-sondes |
| 05/15/1991 | EP0427461A1 Tubular member for sealing a reciprocating rod |
| 05/15/1991 | EP0427460A1 Sealing means for a thermostat |
| 05/14/1991 | US5015827 Control system for a cooking oven |
| 05/14/1991 | US5015826 Power adjustment device for electric power systems, in particular for electric power systems with electric ovens |
| 05/14/1991 | US5014520 Control device having a coiled compression shape memory spring, refrigerator system utilizing the control device and methods of making the same |
| 05/14/1991 | CA1284198C Temperature control arrangement for an extruding process |
| 05/14/1991 | CA1284196C Blowout temperature control system |
| 05/14/1991 | CA1284140C Reverse cycle heating system for a building |
| 05/08/1991 | EP0425955A2 Method and apparatus for regulating the internal temperature of a motor vehicle |
| 05/08/1991 | CN2076690U Rotary temp. alarm |