Patents for F24F 11 - Control or safety systems or apparatus (29,222)
05/2004
05/18/2004CA2138966C Ceiling vent with movable vane
05/13/2004WO2004040203A1 Device for monitoring an air supply flow or a volumetric air flow
05/13/2004WO2003002917A9 Method and apparatus for protecting buildings from contamination during chemical or biological attack
05/13/2004DE202004001623U1 Person or object detection sensor, e.g. for use in a room ventilation installation, has a cleaning air supply to ensure the sensor element is kept clean so that its operation is not impaired
05/13/2004DE10350783A1 Fahrzeugklimaanlage Vehicle Air Conditioning
05/13/2004DE10348564A1 Intelligente Prozeßmodule und -objekte in Prozeßanlagen Intelligent process modules and objects in process plants
05/12/2004EP1417743A1 Method and apparatus to control a variable speed motor
05/12/2004CN1496501A Control module for HVAC systems
05/12/2004CN1495951A Space heating system with fuel cell and connecting wire to public electric network
05/12/2004CN1495399A Control method for refrigeration circulating system
05/12/2004CN1495390A Multibody air conditioner and its working method
05/12/2004CN1149370C Method and apparatus for controlling supplemental heat in heat pump system
05/12/2004CN1149368C Air conditioning apparatus
05/12/2004CN1149360C Control device for air conditioner
05/12/2004CN1149359C Biosensors for minitoring air conditioning and refrigeration preocess
05/11/2004US6734801 Filament stretched across frame; deflects when loaded with debris to trigger swith to transmit signal
05/11/2004US6732540 Air conditioning plant and control method thereof
05/11/2004US6732539 Air conditioning apparatus and control method thereof
05/06/2004WO2004038300A1 Air exchange system for ventilating at least one room of a building
05/06/2004EP1415290A1 Improvement for a remote control that can switch between operating modes
05/06/2004EP1415114A1 Arrangement for controlling airflow for example in clean rooms
05/05/2004CN1494666A Self tuning pull-down fuzzy logic temp control for refrigeration systems
05/05/2004CN1493828A Multipath air conditioner and its operation method
05/05/2004CN1148863C Harmonic suppression equipment for air conditioner and its suppression method
05/05/2004CN1148545C Air conditioner capable of being radio monitored via cellphone and computer
05/05/2004CN1148544C Outdoor fan control system of air conditioner and control method thereof
05/05/2004CN1148541C Air conditioner for combined use of cooler and heater and controlling method therefor
05/05/2004CN1148540C Heat pump air conditioner for use in cold districts
05/05/2004CN1148534C Oil bottle switch for starting the use of oily fume exhauster and aeration fan to remove fume and antifouling
04/2004
04/29/2004WO2004016457A3 Proportional control system for a motor
04/29/2004WO2003104911A3 Fluid flow balancing system
04/29/2004US20040079097 Air conditioner and method of controlling such
04/29/2004US20040079094 Air conditioner
04/29/2004US20040079093 Method and apparatus for energy recovery in an environmental control system
04/29/2004DE19541452B4 Antriebsvorrichtung für ein Stellglied Drive device for an actuator
04/28/2004CN2613713Y Fully automatic fuzzy controller for ventilation
04/28/2004CN1492984A 空调器 Air Conditioner
04/28/2004CN1492983A Air conditioner having oxygen enriching device
04/28/2004CN1492201A 空调机 Air conditioning
04/28/2004CN1492199A 数字智能流量分配控制器 Digital intelligent traffic distribution controller
04/28/2004CN1492198A 空调机 Air conditioning
04/27/2004US6726112 Illuminating thermostat
04/27/2004US6726111 Method and apparatus for centrally controlling environmental characteristics of multiple air systems
04/27/2004US6725915 Method of adjusting room air temperature
04/27/2004US6725676 Refrigerant cycle system with hot gas heating function
04/22/2004WO2003086483B1 Automatically controlling the interaction of a medium with an external environment
04/22/2004US20040075689 Smart process modules and objects in process plants
04/22/2004US20040075471 Apparatus and method for detecting phase state
04/22/2004US20040075347 Security and energy control system and method
04/22/2004DE10228131A1 Safety device for diverse forms of air extraction systems, has two-position safety unit on casing, which prevents power supply plug removal when appropriate
04/21/2004EP1411612A2 Apparatus and method for detecting phase state
04/21/2004CN1491377A Integrated temperature and humidity controller with priority for humidity temperature control
04/21/2004CN1491335A 空调机 Air conditioning
04/21/2004CN1490573A 空调机 Air conditioning
04/21/2004CN1490572A Apparatus and method for detecting phase state
04/21/2004CN1490571A Method and device for controlling running number of connected low temperature water suppliers
04/21/2004CN1490570A Multichannel air conditioner with cooling and heating simultaneously
04/21/2004CN1146708C Controller for air conditioner
04/21/2004CN1146707C Lourver position-sensing device in air conditioner and method for controlling the same
04/20/2004US6722972 Safety release for curtains used in livestock confinement buildings
04/20/2004US6722576 Method for operating air conditioner in warming mode
04/20/2004US6722143 Air conditioning apparatus and control method thereof
04/15/2004WO2004032106A1 Advertisement presentation system, advertisement presentation method, and advertisement management server
04/15/2004WO2004031658A1 Air conditioner
04/15/2004US20040072535 Air circulation system
04/15/2004US20040068994 Air conditioner control system using a public switched telephone network and method for operating the same
04/14/2004EP1408289A2 Air conditioner control system using public switched telephone network and method for operating the same
04/14/2004CN2611792Y Household remote controller for central air conditioner
04/14/2004CN2611791Y Household remote monitoring controller for central air conditioner
04/14/2004CN2611790Y Temp controlled delay electricity saving instrument
04/14/2004CN1488897A Air-conditioner controlling system using public exchange telephone network and operation method thereof
04/14/2004CN1145763C Pre-starting control for multiple zone system
04/14/2004CN1145762C Apparatus for controlling air conditioner and required quantity controlling method
04/13/2004US6719207 Microprocessor controlled two stage furnace
04/13/2004CA2299774C Actuator having timer-controlled power switching device
04/08/2004WO2004029517A1 Device for determining the quality of ambient air
04/08/2004WO2004028841A1 Air conditioning unit equipped with a device for detecting and estimating atmospheric moisture
04/08/2004US20040065268 Livestock cooling system
04/08/2004US20040065098 Air conditioning system and method operating suitably to user's characteristics
04/08/2004US20040065096 Air-conditioning control apparatus using heater
04/08/2004US20040065095 Zone demand controlled dual air conditioning system and controller therefor
04/07/2004EP1405013A1 Emergency operation of electrical operator devices for movable members
04/07/2004EP1404537A1 Method of operating an air conditioning installation
04/07/2004EP1260005B1 Switch cabinet or cover with an air-conditioning unit
04/07/2004CN1488059A 空气调节机及其控制方法 The air conditioner and a control method
04/07/2004CN1487251A 变频空调器 Inverter air conditioner
04/07/2004CN1487250A Power source board and producing method thereof, and air conditioner outdoor apparatus using with the same electric power board
04/07/2004CN1487249A Air conditioner system adapted for user's character and its operating method
04/07/2004CN1487248A Control method of one-drive-several air conditioner
04/07/2004CN1487247A Cooling air conditioner unit fault simulating and diagnosing system
04/07/2004CN1487245A Air conditioner apparatus
04/07/2004CN1144978C Air conditioning system
04/06/2004US6718277 Atmospheric control within a building
04/06/2004US6717513 Electronic message delivery system utilizable in the monitoring of remote equipment and method of same
04/06/2004US6716406 Control system for a photocatalytic air purifier
04/06/2004US6715743 Gas humidifier
04/06/2004US6715691 Pressure distribution and regulation in high-rise buildings
04/06/2004US6715690 Slope predictive control and digital PID control
04/06/2004US6715689 Intelligent air-condition system
04/01/2004US20040060311 Vehicle air conditioner