Patents for G05D 23 - Control of temperature (28,546)
02/1980
02/19/1980US4189093 Apparatus for regulating the temperature of a compartment or space
02/19/1980US4189092 Damper control for preventing spread of fire and smoke through an induction mixing box
02/19/1980US4189091 Furnace having a normally closed blower relay
02/12/1980CA1071714A1 Thermoelectric temperature control apparatus
02/07/1980WO1980000201A1 Programmable controller
02/06/1980EP0007775A1 Electric control method and apparatus for automobile air conditioning system
02/06/1980EP0007612A1 Temperature regulation apparatus for a space heated by a heat pump
02/06/1980EP0007497A1 Air conditioning system and method for heating and cooling an enclosure
02/05/1980US4187543 Temperature control of chill water and steam in heating, ventilation, air conditioning (HVAC) systems
02/05/1980US4187093 Refrigerator electronic temperature control and malfunction signal apparatus
02/05/1980US4186875 Two-temperature pneumatic thermostat control system and unit therefor
02/05/1980US4186874 Targeting thermostat
02/05/1980CA1071279A1 Extension thermostat for electric heating element control
01/1980
01/29/1980US4186315 Expanded time constant condition control system using a unidirectional counter with multiple channels
01/29/1980US4186295 Control system for a chromatography apparatus oven door
01/29/1980US4185772 Condition response differential vacuum regulator and method of making the same
01/29/1980US4185771 Water mixing valve with temperature regulation, temperature setting and volume control
01/29/1980US4185769 Exhaust flue damper and control system therefor
01/29/1980US4185663 Condition responsive by-pass valve construction
01/29/1980US4185632 Surgical instrument having self-regulated electrical skin-depth heating of its cutting edge and method of using the same
01/23/1980EP0006942A1 Adjustable thermostatic mixing tap
01/22/1980US4184635 Control units for heating systems
01/22/1980US4184634 Closed loop control for automatic temperature control system
01/22/1980US4184633 Bimetal controlled actuator
01/15/1980USRE30190 Electrically heated surgical cutting instrument
01/15/1980US4184067 Heat control apparatus
01/15/1980US4183466 Thermally actuated phase change operated control valve for heat pump systems
01/15/1980US4183397 Vehicle air conditioning device
01/15/1980US4183251 Timer mechanism
01/15/1980CA1070001A1 Control system to check power consumption of an electric distribution network
01/15/1980CA1069707A1 Add-on unit for automatically adjusting a thermostat
01/09/1980EP0006660A1 Process and apparatus for adjusting and maintaining a fixed bend of a doctor support, exposed on one of its long sides to unilateral heating and cooperating with a cylinder, particularly a smoothing or drying cylinder of a paper-making machine
01/09/1980EP0006383A1 Central heating installation with local control
01/08/1980US4182488 Pressure regulator
01/08/1980US4182485 Thermally responsive valve
01/08/1980US4182484 Temperature control for variable volume air conditioning system
01/08/1980US4182309 Control circuit for solar energy heating systems
01/08/1980US4182183 Thermistor circuit
01/01/1980US4181957 Means for correlation of digital display of a setpoint and an actual controlled value
01/01/1980US4181438 Direct temperature control and measurement for furnace atomizers in atomic spectroscopy
01/01/1980US4181254 Pneumatically and temperature controlled valve construction
01/01/1980US4181252 Thermostatically controlled mixing valve for sanitary devices
01/01/1980US4181106 Engine control system and a differential vacuum regulator therefor or the like
01/01/1980CA1069201A Process fluid circulation and temperature control system
12/1979
12/25/1979US4180789 Time variable thermostat
12/25/1979US4180722 Liquid heating device
12/25/1979US4180209 Solar energy operated system and method
12/25/1979US4180208 Temperature limiting shower control valve
12/18/1979US4178898 Thermostatic valve for intake air temperature compensation for internal combustion engine
12/13/1979WO1979001058A1 Heating apparatus
12/13/1979WO1979001051A1 Improved refrigeration means and methods
12/11/1979US4178579 Remote instrumentation apparatus
12/11/1979US4177924 Condition responsive valve construction and method of making the same
12/11/1979US4177923 Battery operated thermostat timer with battery charging circuits
12/04/1979US4176786 Concealed thermostatic control valve
12/04/1979US4176785 Automatic temperature controller with night setback and operating as a function of outside air
12/04/1979US4176784 Dual action control mechanism
12/04/1979US4176554 Method and apparatus for obtaining the temperature profile of a kiln
11/1979
11/27/1979US4175697 Thermally actuated phase change operated control valve for use in an energy conservation system
11/27/1979US4175696 Thermostatic valve
11/27/1979CA1067185A1 Entry-controlled energy system
11/27/1979CA1067058A1 Analog displacement type electromagnetic valve
11/20/1979US4175283 Batch option module
11/20/1979US4174807 Autocycling control circuit for heating and/or air conditioning systems
11/13/1979US4174517 Central system for controlling remote devices over power lines
11/13/1979US4174511 Bimetal device with an electrical heating element
11/13/1979US4174065 Fluid flow regulating systems
11/13/1979US4174064 Energy control system providing selective control of remote zone heating or cooling from a central location
10/1979
10/31/1979EP0005048A1 Cryostat
10/31/1979EP0005031A1 Temperature regulator assembly
10/30/1979US4172982 Time proportional control means with a variable time constant
10/30/1979US4172555 Adaptive electronic thermostat
10/23/1979US4171768 Thermostat unit for central heating radiators
10/23/1979US4171767 Engine cooling system thermostat and method of making the same
10/23/1979CA1065035A1 In-line energization and de-energization of an external load in series with an external source of electricity in response to externally sensed parameters
10/23/1979CA1064700A1 Thermostatically actuated regulator for a 4-lead air-conditioning plant
10/16/1979US4171087 Control valve
10/09/1979US4170729 Control systems for or in association with storage heaters
10/09/1979US4170339 Analog displacement type electromagnetic valve
10/09/1979CA1063992A1 Concealed thermostatic valve control
10/03/1979EP0004525A1 Control unit for starting operation of a conditioning equipment which is effective to influence the temperature in a building
10/03/1979EP0004524A1 Control unit for starting a climatization procedure in a building
10/03/1979EP0004506A2 Device for heating a liquid to a given temperature
10/03/1979EP0004448A1 Method and apparatus for control of a cooling system
10/02/1979CA1063699A1 Automatic interior environment control
10/02/1979CA1063654A1 Temperature regulator and safety thermostat
09/1979
09/25/1979US4168608 Combined cycle electric power plant with coordinated steam load distribution control
09/20/1979WO1979000697A1 A thermostatic mixing valve
09/20/1979WO1979000691A1 Thermostat control for heating and/or cooling system
09/19/1979EP0004233A1 Temperature control device for a housing containing an oscillating piezoelectric cristal
09/19/1979EP0004035A1 Soldering device with temperature control
09/18/1979US4168522 Light emission control for gas-discharge lamp
09/18/1979US4168456 Apparatus for controlling an electric motor for driving a cooling fan of an internal combustion engine
09/18/1979US4167966 Air conditioner blower control
09/18/1979US4167858 Refrigerant deficiency detecting apparatus
09/18/1979CA1062796A1 Hot/cold applicator system
09/18/1979CA1062688A1 Valve, especially a radiator valve
09/11/1979US4167696 Zero phase switching for multi-phase systems
09/11/1979US4167663 Blood warming apparatus
09/11/1979CA1062332A1 Control circuit for a power switching element