Patents for F24F 11 - Control or safety systems or apparatus (29,222)
04/1988
04/12/1988US4737103 Fresh air monitoring and controls relating thereto
04/12/1988US4736595 Circuit for controlling inventer in air conditioner
04/12/1988CA1234983A1 Fluid cooling unit for air conditioning plant
04/07/1988WO1988002508A1 Cascade-based method of controlling a fluid flow
04/07/1988WO1988002464A1 Process and installation for air conditioning of rooms
04/05/1988US4735058 Air conditioning apparatus
04/05/1988US4735054 Method for minimizing off cycle losses of a refrigeration system during a cooling mode of operation and an apparatus using the method
03/1988
03/29/1988US4734871 Wireless battery powered temperature remote controller
03/29/1988US4734628 Electrically commutated, variable speed compressor control system
03/29/1988US4733606 Closure device
03/23/1988EP0260343A2 Temperature control method and apparatus for heating and cooling plants
03/22/1988US4732318 Velocity controlled forced air temperature control system
03/17/1988DE3728959A1 Control circuit for a ventilation installation
03/15/1988US4730772 Moisture eliminator for air washer
03/15/1988US4730553 Method of operating an air-supplied type coating booth
03/10/1988WO1988001728A1 Temperature sensing element
03/09/1988EP0258619A2 Atmosphere control apparatus
03/08/1988US4729295 Method of operating an air-supplied type coating booth
03/08/1988US4729293 Air direction control apparatus for a louver at an air outlet
02/1988
02/23/1988US4726824 Air purification system
02/23/1988CA1233217A1 Control device with positive temperature coefficient impedance for limiting dissipated power
02/23/1988CA1233216A1 Method of controlling a space heating system
02/23/1988CA1233215A1 Temperature and pressure actuated capacity control system for air conditioning system
02/23/1988CA1233062A1 Flow stabilizer for ventilation conduit
02/16/1988US4725001 Electronic thermostat employing adaptive cycling
02/16/1988US4724680 Air conditioning apparatus and control method thereof
02/09/1988US4723593 Room temperature control unit responsive to occupancy
02/02/1988US4722475 Environmental control system with condition responsive timer and method
02/02/1988US4722196 Device for controlling refrigeration cycle capacity
02/02/1988CA1232249A1 Multi-purpose fan
01/1988
01/28/1988DE3640706A1 Device for ventilating rooms
01/26/1988US4720982 Multi-type air conditioner with optimum control for each load
01/26/1988CA1232049A1 Controllable rotary actuator
01/26/1988CA1231881A1 Air vent with floating closure
01/19/1988US4719763 Device for changing the temperature of a room
01/19/1988CA1231770A1 Adaptive defrost control and method
01/19/1988CA1231620A1 Flow regulator and its use
01/19/1988CA1231619A1 Flow regulator
01/05/1988US4718021 Technique for fan cycling to maintain temperature within prescribed limits
01/05/1988US4716957 Duct type multizone air conditioning system
01/05/1988CA1231157A1 Air sensing control system for air conditioners
12/1987
12/29/1987US4715532 Adjustably resettable, temperature-responsive automatic ventilator
12/29/1987US4715191 Air conditioning method
12/23/1987EP0143819B1 Flow regulator
12/23/1987CN86210203U Water-cooling air conditioner capable of controlling cooling water automatically
12/16/1987CN87102709A 空气调节器 Air conditioner
12/09/1987EP0248380A2 Apparatus for controlling a variable air volume unit
12/02/1987CN87103719A Air-conditioning apparatus
12/01/1987US4710887 Computer controlled constant concentration and size particulate general system
11/1987
11/25/1987EP0246907A2 Room air conditioner
11/25/1987EP0246443A1 An air conditioner
11/24/1987US4709292 Trouble detector apparatus for an air-conditioner including a counter and a timer
11/17/1987US4706882 Adaptive optimum start
11/17/1987US4706469 Refrigerant flow control system for use with refrigerator
11/12/1987EP0191801A4 Residential heating, cooling and energy management system.
11/12/1987DE3717313A1 Method for generating and regulating an upwind induced by gravity
11/11/1987EP0245023A2 Humidifier control means
11/11/1987EP0244501A1 Temperature sensing circuit
11/10/1987US4705457 Monitoring of fluid flow
11/10/1987US4704951 Ventilation system for an isolation enclosure
11/10/1987CA1229147A1 Temperature control method and apparatus for air conditioner
11/03/1987US4703795 Control system to delay the operation of a refrigeration heat pump apparatus after the operation of a furnace is terminated
10/1987
10/29/1987DE3613942A1 Deaeration and aeration installation with a heat accumulator
10/27/1987US4702413 Temperature control system using a single ramp rate curve for control of a multiplant environmental unit
10/27/1987US4702307 Air conditioner control system
10/27/1987US4702305 Temperature control system for control of a multiplant environmental unit
10/21/1987EP0241499A1 Constant air flow rate valve.
10/15/1987DE3710470A1 Control circuit for a motor drive, in particular a fan motor drive
10/14/1987EP0240977A2 Ventilating device for an air exchange according to the needs
10/14/1987EP0240780A2 Mixing valve air source
10/14/1987CN87205638U Automatic relative humidity-controlling system
10/14/1987CN87200413U Gas-alarming-self controlling ventilating device
10/13/1987US4698977 Air conditioning system for automotive vehicles
10/13/1987CA1228138A1 Control and method for tempering supply air
10/13/1987CA1227949A1 Light pipe and heater apparatus
10/07/1987CN87100650A Device for controlling capacity of compressor
10/06/1987US4697736 Automatic damper assembly
10/06/1987US4697607 Procedure and means for making the effect of gravity the same in flow regulators independent of the installation mode
10/06/1987US4697430 Air conditioner with a radiant temperature control
10/06/1987CA1227850A1 Control system and method for defrosting the outdoor coil of a heat pump
09/1987
09/30/1987EP0238979A2 Temperature and humidity control arrangement
09/30/1987EP0238862A1 Model for the simulation of oxygen consumption and carbon dioxide production
09/24/1987DE3608916A1 Method for temperature-dependent ventilation control in particular in stables (cowsheds), commercial and industrial buildings
09/23/1987EP0237822A2 Refrigerant flow control system for use with refrigerator
09/22/1987US4694989 Control installation for variable volume air diffusers
09/22/1987US4694988 Control installation for variable volume air diffusers
09/22/1987US4694851 Flow regulator and its use
09/16/1987EP0237015A2 Control installation for variable volume air diffusers
09/08/1987US4691862 Heater unit for vehicles
09/01/1987US4690372 Automatic regulating valve of the air flow sucked out of a room through a mechanical ventilating installation
08/1987
08/19/1987EP0232432A1 Method and apparatus for measurement of relative humidity, application of the method to desiccate closed spaces, and fitted ventilator to carry out the method
08/19/1987EP0144369B1 Flow regulator
08/18/1987US4687050 Dual thermostat controlled outlets
08/13/1987WO1987004775A1 A control device for a valve
08/13/1987DE3603684A1 Sensor-controlled ventilation system for dwelling rooms, office rooms and the like
08/12/1987EP0232188A2 Device for controlling the capacity of a compressor
08/11/1987US4685307 Residential heating, cooling and energy management system
07/1987
07/29/1987EP0230108A1 Ventilator control apparatus
07/28/1987US4682648 Temperature offset control system
07/22/1987EP0229742A2 Warm-up/changeover valve or proximity switch