Patents
Sitemap › G05 - Controlling; Regulating › G05D - Systems for controlling or regulating non-electric variables › G05D 23 - Control of temperature
Patents for G05D 23 - Control of temperature (28,546)
08/1990
08/28/1990US4951475 Method and apparatus for controlling capacity of a multiple-stage cooling system
08/23/1990DE3904800A1 Method and device for temperature control in the passenger compartment of motor vehicles
08/22/1990EP0383741A2 Arrangement in a range or a cooking hob
08/22/1990EP0383718A2 Heating element control
08/22/1990EP0383295A2 Temperature-regulating device for printing machines
08/22/1990EP0383249A1 Wax-pellet thermostat
08/22/1990CN2060866U Computer controller for refrigerator or cold cupboard
08/22/1990CN2060865U Electronic controller of refrigerator
08/21/1990US4951096 Self-calibrating temperature control device for a heated fuser roller
08/21/1990US4950972 Alternator system for automotive vehicles
08/21/1990US4950872 Control circuit for a source of heat
08/21/1990US4950870 Heat-treating apparatus
08/21/1990US4950608 Temperature regulating container
08/21/1990CA1272887A1 Pulse controlled solenoid valve
08/17/1990CA2007729A1 Heating element control
08/16/1990EP0382394A1 Improvements in or relating to the control of electrically operated heating systems
08/16/1990EP0381846A2 Apparatus for controlling the interior temperature of a motor vehicle
08/16/1990DE3904034A1 Radiation heating device
08/14/1990US4948950 Heating system, control device therefor and methods of making the same
08/14/1990US4948948 Water heater with multiple heating elements having different power
08/14/1990US4948045 Heating and airconditioning control system
08/14/1990US4948044 Electronic digital thermostat having an improved power supply
08/14/1990US4948043 Wax-pellet thermostat
08/14/1990US4948041 Thermostatic garden hose protection device
08/14/1990US4947928 VAV system coordinator
08/14/1990CA1272707A1 Hot/cold water mixing device
08/08/1990EP0381592A2 Concentrative control method of cooling a plurality of thermal loads
08/08/1990EP0380615A1 A method for the optimal comfort and efficiency control of variable speed heat pumps and air conditioners.
08/07/1990WO1990008995A1 Improvements in or relating to the control of electrically operated heating systems
08/07/1990US4946097 Control system for heating container for use on motor vehicle
08/07/1990US4945943 Computerized water faucet
08/07/1990CA2046336A1 Control of electrically operated heating systems
08/01/1990EP0380369A1 Controls for electrically powered heating elements
08/01/1990EP0380140A2 Method and device for injection of a liquid into the human or animal body as well as method and heating device for temperature control
08/01/1990EP0379782A2 Electric cooking appliance
08/01/1990EP0379759A1 Proportional control valve
07/1990
07/31/1990US4945316 Voltage follower with pull-apart conector
07/31/1990US4945210 Card controlled soldering iron temperature control device
07/31/1990CA1272274A1 Saw guide system
07/31/1990CA1272024A1 Air conditioning apparatus
07/26/1990WO1990008293A1 Procedure for controlling and maintaining air currents or equivalent in an air-conditioning installation, and an air-conditioning system according to said procedure
07/26/1990WO1990008283A1 Control valve for a faucet and use of ultrasonic motor
07/25/1990EP0281551B1 Apparatus for the oxidation of particles suspended in the air
07/24/1990US4943003 Control device for heat pump with hot-water supply facility
07/24/1990US4942849 Fail-safe coolant thermostat system for an internal combustion engine
07/24/1990CA1271982A1 Power control device for a resistance heater in an oven
07/19/1990DE3900866A1 Arrangement for controlling a heating or cooling medium
07/18/1990CN2059519U Temp. alarm for flue-curing tobacco room
07/18/1990CN2059518U Miniatre electric thermostated container
07/18/1990CN1043997A Multi-functional temp. program control instrument
07/17/1990US4942613 Service thermostat
07/17/1990US4941609 Method and apparatus for controlling firing rate in a heating system
07/17/1990US4941608 Hot water supplying system
07/17/1990CA1271825A1 Line voltage two wire thermostat
07/17/1990CA1271815A1 Apparatus for automatically controlling the temperature of welding bands
07/17/1990CA1271799A1 Cooking apparatus
07/17/1990CA1271630A1 Apparatus for deflecting the direction of the wind in an air conditioner
07/11/1990CN2059254U Automatic constant temp. controller
07/11/1990CN1043806A Compositely proportional temp control method of hot-water circulation
07/10/1990US4940079 Optimal control system for refrigeration-coupled thermal energy storage
07/10/1990US4939987 Humidity control system
07/05/1990DE3943166A1 Fixing process temp. control for electrophotographic reprodn. - has master control unit and fixed frequency pulse generator enable temp. sensor output to be tracked
07/04/1990EP0376787A1 Temperature controller for the characteristics of an integrated circuit
07/04/1990EP0376548A1 Compensation circuit for sensor lag to reduce undershoot and overshoot
07/04/1990EP0375865A1 Bread toaster
07/04/1990EP0201527B1 Method and device for reducing the temperature range of a mechanical thermostat
07/04/1990CN2059000U Temp. automatic controlller for water-cooling radiator
07/03/1990US4938196 Control device for heater for oxygen sensor operative to correct target resistance with reference to standard power supply thereto
07/03/1990US4938033 Automatic air conditioning system for automotive vehicles
07/03/1990CA1271175A1 Thermostatic valve with trap repair cartridge
06/1990
06/28/1990DE3927472A1 Operating laboratory liq. thermostat - using bath with recirculating pump, speed control and temp. sensors
06/28/1990DE3843127A1 Control device for the current flow through the heating filament of a tubular heater
06/27/1990EP0375335A2 Improvements in or relating to thermoscopic units
06/27/1990EP0375259A2 Hot water supplying system
06/27/1990EP0374228A1 Control and monitoring circuit for electrical seat heaters, in particular in motor vehicles
06/26/1990US4937434 Heat treatment apparatus and heat treatment method
06/26/1990US4936106 Retractable control unit for refrigerators
06/26/1990US4936105 Operation control system for a cooling cycle
06/26/1990CA1270615A1 Cooling apparatus on a plastics injection molding machine
06/24/1990CA2006220A1 Bread toaster
06/21/1990DE3941168A1 Heated micro-titration plate - has cuvettes, plate-shaped member, temp. probes and sensors, ceramic plate and heating elements
06/20/1990EP0373805A2 Alternator system for automotive vehicles
06/20/1990EP0373487A1 Electronic control device for the power supply of a heating resistor
06/20/1990CN2058507U Adjustable automatic homothermal controller
06/19/1990US4935607 Control unit and method of making the same
06/19/1990US4935603 Hot water supply system
06/19/1990US4935600 Soldering apparatus with one or more temperature controlled soldering irons
06/19/1990US4934593 Process for setting the temperature difference between cut-in and cut-out temperature of a refrigerating unit or the like in the region of a set value, to be maintained, of the temperature
06/14/1990WO1990006478A1 Interactive electronic thermostat
06/14/1990WO1990006465A1 A thermostat-controlled mixing valve
06/13/1990CN1043012A Temp. control system for cooking apparatus
06/13/1990CN1043011A Diode temp.-sensing temp. controller
06/12/1990US4933535 Piecewise linear temperature controller utilizing pulse width modulation
06/12/1990US4933126 Method and apparatus of temperature control in heat forming of thermoplastic sheet material
06/12/1990US4932466 Relay panel and system for controlling zoned heating and cooling systems
06/12/1990US4932217 Process for controlling a heater, in particular a defrost heater for refrigerating plants
06/06/1990EP0371263A1 A protective device for laundry drying machines
06/06/1990CN2057975U Thermo-couple natural wind controllor
06/05/1990US4931938 Microcomputer controlled faucet
06/05/1990US4930698 Control apparatus for automobile air-conditioners
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