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)
08/1989
08/02/1989CN2042214U 温度控制器 Temperature Controller
08/01/1989US4853519 Heating apparatus for heating in a plurality of heating modes
08/01/1989US4853134 Heat sensitive shut-off diverter valve
08/01/1989US4852798 Air conditioning apparatus for a motor vehicle
08/01/1989US4852544 Self-cleaning oven temperature control with multiple redundant oven temperature sensing elements
08/01/1989US4852364 Expansion and check valve combination
08/01/1989US4852361 Refrigerator with a malfunction detection system
08/01/1989US4852360 Heat pump control system
07/1989
07/27/1989DE3800720A1 Method for the forcible drive of heater thermostats having expansion elements
07/27/1989DE3800715A1 Temperature-dependent volume control valve
07/26/1989CN2041795U Electronic temperature controller for frigidarium and air conditioner
07/25/1989US4851954 Monitoring apparatus for monitoring temperature in a circuit arrangement
07/25/1989US4851646 Electric sauna stove
07/25/1989US4850310 Boiler control having reduced number of boiler sequences for a given load
07/25/1989US4850203 Air conditioner control apparatus
07/25/1989US4850198 Time based cooling below set point temperature
07/20/1989DE3827824A1 Method and device for testing a safety temperature cutout (limiter)
07/20/1989DE3733127A1 Device for the temperature control of an air flow
07/19/1989EP0324367A1 Themostatic mixing valve
07/19/1989EP0232278B1 Real time testing of weather-related behaviour of buildings
07/19/1989CN2041436U Adjustable bimetallic temp. controller
07/18/1989US4848654 Zone control and smoke damping apparatus for central heating and/or cooling systems
07/18/1989US4848652 Vehicle engine coolant system and method of making the same
07/18/1989US4848444 Process and processor for the control of parameters of the interior air in a motor vehicle having an air conditioning system
07/18/1989US4848099 Adaptive refrigerant control algorithm
07/13/1989DE3833261A1 Device and method for controlling the temperature of a laboratory thermostat (thermostatic bath)
07/13/1989DE3820429A1 Process for operating heating installation, and heating installation
07/13/1989DE3742807A1 Annealing apparatus
07/12/1989EP0323486A1 Bushing balance controller
07/12/1989CN2041023U Temp. controller for electric refrigerator
07/11/1989US4847471 Heater for use as either primary or auxiliary heat source and improved circuitry for controlling the heater
07/11/1989US4846674 Method and apparatus for heating removably attachable heading tool dies
07/11/1989US4846219 Pressure relief by pass control valve
07/11/1989US4845956 Regulating device for the superheat temperature of the evaporator of a refrigeration or heat pump installation
07/11/1989CA1257366A1 Device for controlling capacity of compressor
07/06/1989DE3842644A1 Method for controlling the output of an electrically heated flow heater
07/05/1989CN1033692A Oven with wide temperature range
07/04/1989US4845342 Circuit for providing electrical energy to a heatable means
07/04/1989US4845341 Heating system, control device therefor and methods of making the same
07/04/1989US4844335 Microprocessor controlled heating system
07/04/1989US4844333 Spa side control unit
07/04/1989US4844149 Warm-up/changeover valve or proximity switch
07/04/1989US4844074 Method and apparatus for introducing a fluid into a human or animal organism as well as method and heating device for temperature control
07/04/1989US4843833 Refrigerator)freezer combination
07/04/1989CA1256963A1 Adaptive microprocessor control system and method for providing high and low heating modes in a furnace
06/1989
06/29/1989WO1989006008A1 Device for regulating an electric heating appliance
06/29/1989DE3742545A1 Heat storage unit having at least 2 heating resistors
06/28/1989CN2040097U Automatic controller of an electric heater for a vertical cement kiln
06/27/1989US4843576 Temperature control arrangement for an extruding process
06/27/1989US4843384 Wireless remote control system
06/27/1989US4843084 Thermostat control system
06/27/1989US4842192 Microprocessor controlled thermostat for dryer
06/27/1989US4842191 Temperature-controlled mixing fitting
06/27/1989US4842190 Control circuit for a forced-air heating system
06/27/1989US4842044 Furnace control system
06/27/1989US4841738 Method and apparatus of automatically switching between cooling and heating modes of an air conditioner
06/27/1989US4841735 Temperature controller and method of temperature control for use in a refrigerating device
06/27/1989US4841734 Indicating refrigerant liquid saturation point
06/22/1989DE3741775A1 Control circuit for hot air appliances
06/21/1989EP0321450A1 Electrostatic copying apparatus
06/21/1989EP0321253A2 Interface adapter for interfacing a remote controller with commercial refrigeration and environmental control systems
06/21/1989EP0320564A2 Temperature-adjustable water supply system
06/20/1989USRE32960 Electronic thermostat
06/20/1989US4841170 Temperature controlled hybrid assembly
06/20/1989US4840308 Automotive air conditioning system damper position control
06/20/1989US4840220 Heat pump with electrically heated heat accumulator
06/20/1989US4840038 Control device for use in a refrigeration circuit
06/15/1989WO1989005536A1 Lighting control
06/15/1989WO1989005112A1 Boiling condition detector
06/14/1989CN2039351U Temperature controller for the fan of electromagnetic clutch in vehicle
06/14/1989CN2039203U Electrically-heated thermostat for intravenous liquid
06/14/1989CN1004522B Thermostat means adaptively controlling the amount of overshoot or undershoot of space temperature
06/13/1989US4839818 Magnet wire oven control apparatus
06/13/1989US4839503 Controlling the simmering or cooking time in a cooking vessel
06/13/1989US4838484 Variable volume air conditioning system with velocity readout at the thermostat
06/13/1989US4838483 Vav valve control with transducer tolerance compensation
06/13/1989US4838084 Density measuring instrument
06/13/1989US4838037 Solenoid valve with supply voltage variation compensation
06/13/1989CA1255776A1 Apparatus for controlling actuators operative under negative pressure
06/13/1989CA1255775A1 Modular electronic temperature controller
06/08/1989DE3740040A1 Thermostatically controlled mixing valve
06/08/1989DE3739712A1 Temperature switch
06/08/1989DE3739676A1 Flow heater with electronic temperature regulation
06/07/1989CN2039038U Temp. cotrol device for electric fan
06/06/1989US4837731 System for time programming of states by communicating time data via a continuously rotatable potentiometer
06/06/1989US4837424 Process for conducting and monitoring the temperature rise of electrically heated components
06/06/1989US4836442 Compensation circuit for sensor lag to reduce undershoot and overshoot
06/06/1989US4835980 Method for controlling refrigerating system
05/1989
05/31/1989EP0318208A2 Thermo-actuator
05/31/1989EP0317704A1 Dental device with control for the constant temperature of warm water
05/31/1989CN2038644U Heating device with automatic temperature limiting unit
05/30/1989US4835715 Outdoor ambient temperature determination
05/30/1989US4834283 Automotive air conditioning system
05/30/1989US4834130 Mixing valve
05/24/1989EP0316496A1 Method for regulating the temperature of a central heating installation
05/24/1989CN1033098A Controlling apparatus for air-conditioner
05/23/1989US4832258 Measuring circuit for use in device for detecting ambient air temperature
05/23/1989US4831836 Frequency control apparatus of a multi-refrigeration cycle system
05/23/1989US4831832 Method and apparatus for controlling capacity of multiple compressors refrigeration system
05/23/1989CA1254605A1 Monitoring system for use with elongate heater units
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