Patents
Sitemap › F24 - Heating; Ranges; Ventilating › F24F - Air-conditioning; Air-humidification; Ventilation; Use of air currents for screening › F24F 11 - Control or safety systems or apparatus
Patents for F24F 11 - Control or safety systems or apparatus (29,222)
08/1989
08/23/1989CN1034991A Air conditioner
08/22/1989US4858824 Air conditioner
08/17/1989DE3803376A1 Fan part
08/15/1989US4857918 Fault diagnostic apparatus for electric appliance
08/10/1989WO1989007226A1 Forced air ventilation system
08/02/1989EP0326431A2 Control device for an air conditioner
08/01/1989US4852637 Thermostatic controlled system
07/1989
07/27/1989WO1989006774A1 Improvements in heating and cooling systems
07/26/1989CN1004901B Control system of flow direction used in blinds or air exhaust
07/25/1989US4851066 Snap-secured bladder for air-distribution terminal
07/25/1989US4850264 Regulation of atmospheric conditions within a confined space
07/25/1989US4850203 Air conditioner control apparatus
07/25/1989US4850200 Refrigerating circuit device for air conditioning apparatus and control method thereof
07/25/1989US4850198 Time based cooling below set point temperature
07/19/1989EP0324462A2 Air conditioning device
07/19/1989CN2041404U Special-purpose controller for air-conditioner
07/18/1989US4849950 Device for reducing the leakage noise of a power converter
07/11/1989CA1257366A1 Device for controlling capacity of compressor
07/04/1989US4844150 Air distributing mechanism for an automotive air conditioning system
07/04/1989US4843832 Air conditioning system for buildings
06/1989
06/29/1989WO1989005947A1 Method and apparatus for the control of air flows and pressures in air-conditioning
06/28/1989EP0321515A1 Procedure and means for controlling volumetric flow rate in air-conditioning installations.
06/27/1989US4843384 Wireless remote control system
06/27/1989US4841738 Method and apparatus of automatically switching between cooling and heating modes of an air conditioner
06/27/1989US4841733 Dri-Pc humidity and temperature controller
06/21/1989EP0321253A2 Interface adapter for interfacing a remote controller with commercial refrigeration and environmental control systems
06/20/1989US4840220 Heat pump with electrically heated heat accumulator
06/14/1989CN2039440U 多功能室温控制器 Multifunction room temperature controller
06/13/1989US4838484 Variable volume air conditioning system with velocity readout at the thermostat
06/13/1989US4838483 Vav valve control with transducer tolerance compensation
06/13/1989US4838482 Air conditioning system with periodic fan operation
06/13/1989US4838344 Atmosphere control apparatus for theaters
06/08/1989DE3739931A1 Active room-air conditioning
06/06/1989US4836095 Static pressure control in variable air volume delivery system
06/06/1989US4835981 Air conditioner with improved thermostating operation
06/01/1989WO1989004936A1 Regulator device in particular for air-conditioning installations and the use of the regulator device
05/1989
05/30/1989US4835715 Outdoor ambient temperature determination
05/24/1989EP0225356B1 Air turbine
05/24/1989CN2038212U Room temp.-humidity autocontrol device for standard curing of concrete
05/24/1989CN1033098A Controlling apparatus for air-conditioner
05/23/1989US4832260 Emergency ventilation system
05/17/1989CN1032975A High-precision autocontrol system of constant temp. and humidity
05/16/1989US4830274 Pressure independent VAV valve with pressure dependent backup
05/16/1989US4830095 Temperature control system for air conditioning system
05/16/1989US4829779 Interface adapter for interfacing a remote controller with commercial refrigeration and environmental control systems
05/11/1989DE3836647A1 Control device
05/11/1989DE3836625A1 Control device
05/11/1989DE3737406A1 Control device
05/10/1989EP0315573A2 Air conditioner having outdoor air introducing mechanism
05/09/1989US4829447 Bypass controller and bypass system
05/09/1989US4828168 Method of controlling duct-type air conditioning system
05/09/1989US4827971 Constant air flow rate valve, and procedure for controlling a constant air flow rate valve
05/03/1989DE3736133A1 Air-heating unit for frost- and ice-proof heating of outside air during circulating-air and brine-free operation
05/02/1989US4827154 Control system for air cleaner
04/1989
04/27/1989DE3820105A1 Ventil zum regeln eines luftstroms Valve for controlling a flow of air
04/26/1989EP0313169A1 Method for controlling the climate in a building
04/25/1989US4823679 Building ventilation system with air inlet flap control
04/25/1989CA1253237A1 Adaptive clock thermostat means for controlling over and undershoot
04/19/1989EP0312486A2 Air terminal
04/19/1989CN2036257U Automatically-controlling and alarming air exhaust device for harmful gas
04/19/1989CN2036256U Automatic ventilating and temp.-lowering controller
04/18/1989US4821955 Thermally-powered active master and passive satellite air diffuser system
04/18/1989US4821526 Air conditioning apparatus
04/18/1989CA1252851A1 Adaptive optimum start
04/18/1989CA1252850A1 Clock operated thermostat having automatic changeover and optimum start
04/12/1989CN1032390A Air-conditioner
04/11/1989US4819868 Electromechanical device associated with thermoactuators for use in vehicle climate control and air conditioning systems
04/11/1989US4819715 Automatic air conditioning system for an automotive vehicle
04/11/1989US4819714 Air conditioning apparatus
04/11/1989US4819551 Safety system for smoke and fumes
04/05/1989CN1032233A Controller for blasting of air-conditioner
04/04/1989US4818970 For removal of asbestos materials
04/04/1989US4818920 Digital oem ceiling fan
04/04/1989US4817864 Temperature compensation for vav system
03/1989
03/29/1989EP0308866A2 Ratchet switch operator
03/28/1989US4815657 Room temperature controlling apparatus used for an air conditioner
03/23/1989WO1989002581A1 A device for measuring the volume flow of a fan
03/21/1989US4813474 Air conditioner apparatus with improved dehumidification control
03/15/1989CN1031756A Controlling device for air-conditioning fun
03/14/1989US4811575 Sound insulated bellows-type air terminal valve
03/08/1989CN1031631A Method of controling electric motor for air-blower of air conditioner
03/07/1989US4810943 Method and apparatus for controlling air-conditioning apparatus
03/07/1989US4809517 Blower controlling device for automobile air-conditioning system
03/07/1989US4809516 Residential heating cooling and energy management system
03/07/1989CA1250804A1 Moisture eliminator for air washer
02/1989
02/28/1989US4807810 Humidification controlling system with an ultrasonic humidifier
02/28/1989US4807444 Air flow control device
02/28/1989CA1250639A1 Air conditioner
02/21/1989US4806839 Device for energizing a hermetic motor using inverter
02/21/1989US4806833 System for conditioning air, method of operating such, and circuit
02/21/1989US4805689 Outdoor unit for a heat pump
02/21/1989US4805519 Control system
02/15/1989EP0303245A2 Method for controlling a refrigeration system and apparatus for implementing said method
02/07/1989US4802529 Refrigerant-heating type heating apparatus
01/1989
01/31/1989US4801082 Security activated load control
01/31/1989US4800804 Variable air flow diffuser
01/31/1989CA1249437A1 Optimum start/stop dependent upon both space temperature and outdoor air temperature
01/25/1989EP0300015A1 Ventilation control procedure and ventilation control means.
01/18/1989EP0299361A2 Demand defrost control method and apparatus
01/17/1989US4798059 Air conditioner with heat regeneration cycle
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