| Patents for F24F 11 - Control or safety systems or apparatus (29,222) |
|---|
| 06/12/1990 | US4933614 Motor drive control circuit |
| 06/12/1990 | US4932466 Relay panel and system for controlling zoned heating and cooling systems |
| 06/12/1990 | US4932220 Air conditioner system with optimum high pressure control function |
| 06/12/1990 | US4932215 Control apparatus for multi-air-conditioner system |
| 06/06/1990 | EP0371082A1 Method and apparatus for the control of air flows and pressures in air-conditioning. |
| 06/05/1990 | US4931948 Method and system for controlling a single zone HVAC supplying multiple zones |
| 06/05/1990 | US4930320 Cooling fan controlling apparatus for vehicle with air conditioner |
| 06/05/1990 | CA1269880A1 Smoke and fire protection system for elevators |
| 05/31/1990 | WO1990005869A1 Timing control valve in air exchange unit |
| 05/29/1990 | US4928750 VaV valve with PWM hot water coil |
| 05/29/1990 | US4928583 Air flow control system |
| 05/16/1990 | EP0144370B1 Flow regulator and its use |
| 05/16/1990 | CN1042228A 遥控器 Remote Control |
| 05/08/1990 | US4922807 Ballast system for maintaining constant pressure in a glove box |
| 05/02/1990 | CN1007788B Device for controlling capacity of compressor |
| 05/01/1990 | US4921164 Central air conditioning system with damper and method for controlling the same |
| 05/01/1990 | US4921163 Method and apparatus for temperature control of heating and cooling plants |
| 04/25/1990 | EP0364834A2 Air conditioning device |
| 04/24/1990 | US4919329 Thermally activated automatic damper and damper operator |
| 04/24/1990 | US4919197 Atmosphere control apparatus for theaters |
| 04/17/1990 | US4916913 Air conditioning apparatus having two refrigerating circuits in central unit and control method of defrosting the same |
| 04/17/1990 | US4916909 Cool storage supervisory controller |
| 04/17/1990 | CA1267959A1 Method of continuously regulating the operation of a ventilation plant and a ventilation plant for use in said method |
| 04/17/1990 | CA1267954A1 Method of operating an air-supplied type coating booth |
| 04/11/1990 | EP0362913A1 Self-regulating register |
| 04/11/1990 | EP0191801B1 Residential heating, cooling and energy management system |
| 04/11/1990 | CN1041228A Automatic ventilation-controlling system for stored grain |
| 04/10/1990 | US4915020 Radon control in dwellings |
| 04/10/1990 | US4914925 Control device for an air conditioner |
| 04/03/1990 | CA1267462A1 Diagnostic system for detecting faulty sensors in a refrigeration system |
| 04/03/1990 | CA1267461A1 Diagnostic system for detecting faulty sensors in liquid chiller air conditioning system |
| 03/20/1990 | US4909436 Wet atmosphere generation apparatus |
| 03/20/1990 | US4909310 Air flow control device for an air conditioner |
| 03/20/1990 | US4909041 Residential heating, cooling and energy management system |
| 03/13/1990 | CA1266619A1 Air turbine |
| 03/08/1990 | WO1990002297A1 Damper-regulating arrangement for induction apparatus with cooling and heating batteries |
| 03/07/1990 | CN2054099U Regulating valve for intake of changing wind rate fan |
| 03/06/1990 | US4905894 Refrigerant heating type air conditioner |
| 02/28/1990 | CN2053727U Segmented air conditioning electric control plate |
| 02/28/1990 | CN2053726U Window air conditioner protective device |
| 02/27/1990 | US4903894 Ventilation control procedure and ventilation control means |
| 02/27/1990 | US4903759 Apparatus and method for monitoring and controlling heating and/or cooling systems |
| 02/20/1990 | US4901536 Air-conditioner control system |
| 02/14/1990 | CN1039648A 空气调节器 Air conditioner |
| 02/13/1990 | US4899930 Temperature controller for automobile air conditioner |
| 02/13/1990 | US4899551 Air conditioning system, including a means and method for controlling temperature, humidity and air velocity |
| 02/13/1990 | CA1265771A1 Air conditioning control system with enhanced operating range |
| 02/08/1990 | DE3823653C1 Method for operating air-conditioning units and apparatus for carrying out the method |
| 02/07/1990 | CN1006733B Operation unit of gas-changing fan |
| 02/06/1990 | US4898230 Air conditioner with an energy switch |
| 02/06/1990 | US4898086 Living space ventilation |
| 01/31/1990 | CN1006659B Method for adjusting air |
| 01/30/1990 | US4897798 Adaptive environment control system |
| 01/30/1990 | US4896588 Self-cleaning cabin airflow regulating device |
| 01/25/1990 | WO1990000705A1 Air conditioning system control |
| 01/23/1990 | US4895002 Air conditioning device |
| 01/09/1990 | US4891953 Control device for an air conditioner with floor temperature sensor |
| 01/03/1990 | CN1038512A 多层大跨度双拱架结构体系 Multi-storey twin-span arch architecture |
| 01/02/1990 | US4890666 Method for controlling an air distribution system using ΔT |
| 01/02/1990 | US4890545 Air conditioner |
| 01/02/1990 | US4890544 Air distribution system |
| 12/26/1989 | US4889280 Temperature and humidity auctioneering control |
| 12/20/1989 | CN2049739U Protector for air-conditioner |
| 12/19/1989 | US4887436 Defrosting system for a heat exchanger |
| 12/14/1989 | WO1989012269A1 A method for the optimal comfort and efficiency control of variable speed heat pumps and air conditioners |
| 12/12/1989 | US4886110 HVAC zone control system |
| 12/05/1989 | US4884590 Electric motor driven air valve |
| 11/30/1989 | WO1989011624A1 Built-in terminal unit in an air-conditioning system with variable throughput |
| 11/28/1989 | USRE33119 Selective temperature control system |
| 11/28/1989 | US4884214 Thermostat |
| 11/28/1989 | US4882913 Slide plate economizer |
| 11/28/1989 | US4882908 Demand defrost control method and apparatus |
| 11/23/1989 | EP0342928A2 Cooling fan controlling apparatus for a vehicle with an air conditioner |
| 11/21/1989 | US4881572 System for controlling automatically the setting of a damper in a ventilation duct |
| 11/15/1989 | EP0341284A1 Regulator device in particular for air-conditioning installations and the use of the regulator device |
| 11/15/1989 | CN2047762U Aspiration-type protector for microcomputer working in adverse circumstances |
| 11/08/1989 | EP0341022A2 Room monitoring and control system |
| 11/07/1989 | US4879503 Blower motor control for an air conditioner |
| 11/02/1989 | DE3813170A1 Thermally controllable shut-off device in pipelines for gaseous flow media |
| 10/31/1989 | US4877183 Air flow control device for an air conditioner |
| 10/31/1989 | US4877182 Crawl space ventilation system |
| 10/31/1989 | US4877081 Air-conditioning apparatus for automobiles |
| 10/31/1989 | US4876858 Air conditioner and method of dehumidifier control |
| 10/19/1989 | DE3811419A1 Device for the automatic triggering of a room ventilator (fan or blower) when the relative room humidity approaches the respective dew point |
| 10/18/1989 | EP0337830A1 Device for equalizing fluid flow of an aircraft air-conditioning installation |
| 10/11/1989 | CN2045825U Tickle sequence three-speed switch |
| 10/10/1989 | US4873649 Method for operating variable speed heat pumps and air conditioners |
| 10/10/1989 | US4872397 Personal environmental module |
| 09/28/1989 | DE3808890A1 Method for ventilating a room |
| 09/27/1989 | EP0334234A2 A thermosensor used for an automotive air conditioning system |
| 09/27/1989 | CN1035883A Improvements in heating and cooling systems |
| 09/26/1989 | US4869073 Air conditioner with automatic selection and re-selection function for operating modes |
| 09/20/1989 | CN1005210B Air conditioning equipment |
| 09/19/1989 | US4867376 Air control system |
| 09/19/1989 | US4866944 Air conditioner system with function for protecting electric circuit in outdoor unit |
| 09/12/1989 | US4865524 Variable capacity compressor |
| 09/06/1989 | EP0331005A2 Device for ventilating a room |
| 09/05/1989 | US4862950 Apparatus and method for controlling the environment in a substantially enclosed and pressurized work area such as a textile manufacturing plant |
| 08/31/1989 | DE3805427A1 Method for reproducing the opening states of roof-ventilation devices |
| 08/30/1989 | EP0330157A2 Air conditioning system with periodic fan operation |