Patents for G05D 23 - Control of temperature (28,546)
04/1993
04/07/1993EP0535952A1 Humidifier
04/07/1993CN2129146Y Multifuction health-care exercise plate for prolonging one's life
04/06/1993US5200644 Air conditioning system having battery for increasing efficiency
04/06/1993US5199637 Electronic thermostat having correction for internally generated heat from load switching
04/06/1993CA1315888C Versatile interface means for computer-based control systems
04/01/1993WO1993006420A1 Device for setting operation mode of air conditioner
03/1993
03/31/1993EP0534447A1 D.C. fan control circuit for linearly variable cooling
03/31/1993EP0427775B1 Method of regulating a central or district heating plant by means of a differential pressure valve, and unit for working method
03/31/1993EP0418229B1 Method in continuous heat treatment of a liquid the flow of which varies
03/31/1993CN2129051Y Automatic temp. control arrangement for electric warming pad
03/31/1993CA2079040A1 Thermostat having simple battery level detection
03/30/1993USRE34202 Dual mode pneumatic control system
03/30/1993US5198809 Hard wired programmable controller especially for heating ventilating and air conditioning (HVAC systems)
03/30/1993US5197671 Pressure relief valve with thermal trigger and movable seal plug
03/30/1993US5197668 Communicating thermostat
03/30/1993US5197667 Hvac low power usage circulation blower
03/30/1993US5197666 Method and apparatus for estimation of thermal parameter for climate control
03/30/1993US5197537 Apparatus for controlling temperature of machine tool
03/30/1993US5197375 Conveyor oven control
03/25/1993DE4131440A1 Mixing hot and cold water for shower head - using setting motor valves to control hot and cold water supplies allowing periodic adjustment
03/25/1993DE4130748A1 Heating and cooling building using fluid media - involves common forward and rear flow conduit switchable between heating and cooling functions
03/24/1993EP0532724A1 Electronic thermostat switch clock.
03/23/1993US5195678 Automotive oil level control apparatus
03/23/1993CA2052643C Pneumatic direct digital controller
03/23/1993CA2030709C Method for controlling an electronic expansion valve in refrigeration system
03/18/1993WO1993005377A1 Compact programmable temperature detector apparatus
03/18/1993DE4140804C1 Control equipment for motor vehicle passenger compartment heater - uses data memory for specific operating modes and appts. identifying data for heating independently of engine
03/18/1993DE4130513A1 Temp. controller esp. for engine induction air flowmeter - includes resistor bridge with high impedance measurement resistance, heating resistance and amplifier with voltage control loop
03/17/1993EP0532450A2 Space temperature control
03/17/1993EP0531987A2 Electrical heating unit
03/17/1993EP0474815A4 Apparatus for making color proof laminations
03/17/1993CN2128099Y Automatic temp. controlling circuit for electric rice cooker
03/17/1993CN1069876A Injure Therapeutic appliance
03/16/1993US5194187 Steam/water mixer
03/16/1993US5193742 Method for controlling operation of air-conditioner to adjust room temperature automatically
03/16/1993US5193388 Method and apparatus for determining the flow rate of a flowing fluid mass
03/16/1993US5193347 Helmet-mounted air system for personal comfort
03/16/1993CA1314397C Air conditioner
03/11/1993DE4230208A1 Controlling output temp. of electrically heated through-flow water heater - deriving required heating power from through-flow channel input and output temperatures, instantaneous heating power, throughput, and defined output temp.
03/11/1993DE4225622A1 Control method for building heating and cooling systems with inertia - estimating average external temp. against time from measured values over previous 24 hour period taking account of day-night fluctuations and trends
03/10/1993EP0530997A1 Electronic automatic temperature control
03/10/1993EP0530727A1 Storage heater
03/10/1993EP0530471A1 Actuating device for a mixing valve
03/10/1993EP0530433A2 Refrigerator cold control
03/10/1993CN2128008Y Automatic circulation controller for central heating
03/09/1993US5192022 Fuel-fired heat pump system
03/09/1993US5192020 Intelligent setpoint changeover for a programmable thermostat
03/09/1993US5191774 Refrigerating compartment temperature control device
03/04/1993WO1993004421A1 Temperature control in an ohmic process
03/04/1993WO1993004420A1 Temperature control device and method of calibration
03/04/1993WO1993004326A1 Interactive elecronic thermostat with minimum and maximum temperature thermal limit switches
03/04/1993DE4129196A1 Heating power regulator for domestic electric cooking hob - has resistance sensor set into block that engages side of cooking pan to provide direct temp. measurement
03/04/1993CA2116663A1 Interactive electronic thermostat with minimum and maximum temperature thermal limit switches
03/04/1993CA2094147A1 Temperature control device and method of calibration
03/03/1993EP0529983A2 Fluid mixing apparatus
03/03/1993EP0529316A1 Room temperature control device
03/02/1993US5191643 Method and apparatus for refrigeration control and display
03/02/1993US5190215 Method for controlling a boiler
02/1993
02/27/1993WO1993004490A1 Heating apparatus using ptc thermistor
02/25/1993DE4222181A1 Assembly for converting spectrophotometer to fluorometer
02/23/1993US5189283 Current to power crossover heater control
02/23/1993US5189281 Rethermalization cart indicator system
02/23/1993US5188561 For installation in static structures
02/23/1993US5188287 Thermostat actuated by an expanding wax capsule and incorporating a safety device
02/23/1993US5188286 Thermoelectric piezoelectric temperature control
02/23/1993US5187943 Control apparatus for air-conditioner
02/23/1993CA1313808C2 Thermostatic pressure balanced valve assembly
02/23/1993CA1313807C2 Thermostatic pressure balanced valve assembly
02/17/1993EP0527467A2 Setup-setback thermostat having a simple setup-setback visual indicator
02/17/1993EP0527420A2 Fixing device
02/16/1993USRE34179 Temperature controlled hybrid assembly
02/16/1993US5187670 Control system for scheduling parts in a heat-treating process
02/16/1993US5186385 For a flue
02/16/1993US5186277 Generator sealing oil temperature control method and apparatus utilizing temperature matching
02/16/1993US5186097 Fryer controller
02/11/1993DE4126597A1 Heat treatment of units with mounted electrical and electronics - having components on conveyor moved through successive heating and cooling units
02/11/1993DE4126227A1 Controllable heat conducting system esp. for cooling electronic assemblies - contains two heat conductors in variable thermal contact, one being elastically deformable to vary contact area
02/10/1993EP0412959B1 A method for analysing and controlling a cooling process
02/10/1993CN2126925Y Electronic adjustable temp apparatus
02/09/1993US5185513 Heat controller and method for heat treatment of metal
02/09/1993US5185126 Process control; forced hot air destroying bacteria, melting plastics; microprocessor; in situ, continuous
02/09/1993CA1313552C Demand limit control by integral reset of thermostats
02/09/1993CA1313550C Electrically commutated, variable speed compressor control system
02/04/1993WO1993002308A1 Tempering valve
02/03/1993EP0526425A2 Detector device for evaluating the thermal comfort conditions in an environment, for example, in the interior of a motor vehicle
02/03/1993CN2126745Y High safety electric stove for steam bath
02/03/1993CN1068640A Control device for combustion apparatus and method for controlling same
02/02/1993US5184300 Control apparatus for a vehicle for controlling a device mounted thereon
02/02/1993US5183998 Apparatus and method for heating water for infusion and the like
02/02/1993US5183204 Mimetic thermostat
02/02/1993US5183039 Temperature control device for fluid filled pad
02/02/1993US5183012 Thermostatic valve
02/02/1993CA1313394C Control and monitoring circuit for electric seat heaters, especially in automotive vehicles
01/1993
01/28/1993DE4220203A1 Fixiereinheit zur verwendung in einem elektrofotografischen bilderzeugungsgeraet Fuser unit for use in an electrophotographic bilderzeugungsgeraet
01/28/1993DE4124304A1 Thermostat operated,three- way radiator valve - has by-pass side valve seat parallel to and spaced from radiator side valve seat.
01/26/1993US5182439 Method and apparatus for operating a food oven
01/26/1993US5181656 Water recirculating apparatus
01/26/1993US5181654 Sunshine sensor and air conditioner for vehicle
01/26/1993US5181653 Residential heating and air conditioning control system
01/26/1993US5181556 System for substrate cooling in an evacuated environment