| Patents for F24F 11 - Control or safety systems or apparatus (29,222) |
|---|
| 02/26/1991 | US4995307 Variable air volume ventilation system and method |
| 02/21/1991 | DE4020672A1 Adjustable connecting element for coupling two sync. parts - has shaft plate and connecting plate secured by bayonet yoke |
| 02/20/1991 | CN2071768U Temp-regulating electricity-saving protective device for air conditioner |
| 02/06/1991 | EP0411247A2 Air conditioning apparatus |
| 02/05/1991 | US4989414 Capacity-controllable air conditioner |
| 01/31/1991 | DE4027833A1 Building heating and cooling circuit - directs fresh air through chambers in ceilings containing heat-transfer pipes |
| 01/30/1991 | EP0410574A2 Adjustable AC power supply equipment for air-conditioner system |
| 01/30/1991 | EP0410570A2 Air conditioner apparatus with starting control for parallel operated compressors based on high pressure detection |
| 01/30/1991 | EP0410046A1 Self-cleaning cabin airflow regulating device |
| 01/29/1991 | US4987747 Air conditioning device |
| 01/23/1991 | EP0409779A2 Device for controlled ventilation of rooms |
| 01/23/1991 | EP0409157A2 Air filtering control system |
| 01/23/1991 | EP0241499B1 Constant air flow rate valve |
| 01/22/1991 | US4986469 Method of ventilating an animal enclosure in response to temperature |
| 01/15/1991 | US4984433 Air conditioning apparatus having variable sensible heat ratio |
| 01/09/1991 | CN1011163B Automatic ventilation-controlling system for stored grain |
| 01/08/1991 | US4982605 Air flow monitor and temperature compensating circuit therefor |
| 01/02/1991 | EP0405149A2 Room condition maintaining apparatus |
| 01/02/1991 | EP0404914A1 Procedure for controlling and maintaining air currents or equivalent in an air-conditioning installation, and an air-conditioning system according to said procedure. |
| 01/02/1991 | CN1011065B Protecting device for compressor |
| 12/27/1990 | EP0404257A1 Ventilation grill |
| 12/27/1990 | CA1278356C Air conditioning apparatus |
| 12/19/1990 | CN2067803U Special temp regulator for fan coil pipe air-conditioner |
| 12/19/1990 | CN1010881B Wind-direction deflection device for air conditioner |
| 12/19/1990 | CN1010880B Controlling apparatus for air-conditioner |
| 12/19/1990 | CN1010879B Air-conditioner |
| 12/18/1990 | US4977818 Air flow control system |
| 12/18/1990 | US4977751 Refrigeration system having a modulation valve which also performs function of compressor throttling valve |
| 12/06/1990 | DE3917482A1 Air conditioning control circuitry with redundancy - has internal controllers in all devices activating redundant ready devices when redundancy line voltage changes |
| 12/05/1990 | EP0400401A2 Volume flowregulator for a duct |
| 12/05/1990 | CN1010708B Air-conditioning apparatus |
| 12/05/1990 | CN1010707B Separate type air conditioner |
| 12/04/1990 | US4974665 Humidity control system |
| 12/04/1990 | CA1277191C Pneumatic interface apparatus |
| 11/29/1990 | WO1990014563A1 Control device |
| 11/29/1990 | CA2017623A1 Device for controlling a volumetric rate of flow in a guide tube |
| 11/28/1990 | EP0399003A1 Personal environmental module. |
| 11/28/1990 | CN1010643B Method of controlling electric motor for air-blower of air conditioner |
| 11/20/1990 | US4970873 Engine starting device for multiple engine-driven air conditioner |
| 11/14/1990 | EP0396600A1 Improvements in heating and cooling systems. |
| 11/14/1990 | CN1046972A Air conditioner and drive apparatus therefor |
| 11/13/1990 | US4969508 Wireless thermostat and room environment control system |
| 11/13/1990 | CA1276093C Pneumatic differential pressure controller |
| 11/06/1990 | US4968338 Inverter controlled air conditioner with optimum determination for over current detection |
| 10/30/1990 | US4966009 Air-conditioner permitting comfortable sleeping during heating operation |
| 10/30/1990 | US4966006 Refrigeration plant and method of controlling a refrigeration plant |
| 10/30/1990 | CA1275718C Air conditioning apparatus |
| 10/23/1990 | US4964566 Forced air ventilating device |
| 10/17/1990 | CN2064029U Domestic compound air conditioner |
| 10/16/1990 | US4962882 Ventilator |
| 10/16/1990 | CA1275172C Air conditioner with improved thermostating operation |
| 10/11/1990 | DE3910839A1 Device and control of a member for opening and closing a ventilation opening in a room |
| 10/03/1990 | CN1045859A Circulating-airconditioning method with automatic temp. and moisture control in open or closed circuit |
| 10/03/1990 | CN1009858B Air conditioning system for building |
| 10/02/1990 | US4960041 Regulation of atmospheric conditions within a confined space |
| 10/02/1990 | US4959969 Refrigerating circuit apparatus with memory having a plurality of controlling modes |
| 09/18/1990 | US4957238 Pneumatic variable air volume controller |
| 09/18/1990 | CA1274295A1 Adaptive blower motor controller |
| 09/18/1990 | CA1274232A1 Automatic regulating valve of the air flow sucked out of a room through a mechanical ventilating installation |
| 09/12/1990 | CN1045291A Compressor for heat pump and method of operating said compressor |
| 09/07/1990 | WO1990010180A1 Improved zonal control of air conditioning system |
| 09/05/1990 | EP0385560A2 Compressor for heat pump and method of operating said compressor |
| 09/05/1990 | EP0385395A2 Actuator for the lamellae of an apparatus for heating air, cooling air or ventilation |
| 09/04/1990 | US4953784 Ventilator drive system |
| 09/04/1990 | US4953578 Dual mode pneumatic control system |
| 09/04/1990 | CA1273620A1 Electric motor driven air valve |
| 09/04/1990 | CA1273524A1 Ventilation control system |
| 09/04/1990 | CA1273523A1 Aeration device for closed volume |
| 08/30/1990 | DE4004519A1 Combined ventilation and air conditioning system - allows mixing of extracted air with pre-conditioned external air |
| 08/29/1990 | EP0383887A1 Damper-regulating arrangement for induction apparatus with cooling and heating batteries |
| 08/29/1990 | CN2061258U Ventilation and cooling automatic controller for grain depot |
| 08/28/1990 | US4951476 Mode switching arrangement for automotive air conditioner |
| 08/15/1990 | CN1009220B Automatic relative humidity-controlling system |
| 08/14/1990 | US4948045 Heating and airconditioning control system |
| 08/14/1990 | US4948040 Air conditioning system |
| 08/14/1990 | US4947928 VAV system coordinator |
| 08/08/1990 | EP0380615A1 A method for the optimal comfort and efficiency control of variable speed heat pumps and air conditioners. |
| 08/01/1990 | EP0379989A1 A prefabricated air conditioning system for the air-conditioning of a building |
| 08/01/1990 | CN1044331A Automatic adjusting method by even air suction in pipe-line |
| 07/31/1990 | CA1272024A1 Air conditioning apparatus |
| 07/26/1990 | WO1990008293A1 Procedure for controlling and maintaining air currents or equivalent in an air-conditioning installation, and an air-conditioning system according to said procedure |
| 07/25/1990 | EP0378570A1 A device for measuring the volume flow of a fan. |
| 07/25/1990 | CN2059722U Electricity-saving temp. controller for dual channel air conditioner |
| 07/25/1990 | CN1008938B Ventilator for refrigerator |
| 07/24/1990 | US4943003 Control device for heat pump with hot-water supply facility |
| 07/24/1990 | US4942921 Forced air ventilation system |
| 07/24/1990 | US4942740 Air conditioning and method of dehumidifier control |
| 07/18/1990 | EP0377694A1 Built-in terminal unit in an air-conditioning system with variable throughput |
| 07/17/1990 | US4941326 Air conditioner having outdoor air introducing mechanism |
| 07/17/1990 | US4941325 Energy efficient electronic control system for air-conditioning and heat pump systems |
| 07/17/1990 | CA1271630A1 Apparatus for deflecting the direction of the wind in an air conditioner |
| 07/12/1990 | DE3900477A1 Thermally actuated flap device |
| 07/11/1990 | CN1008768B Air conditioning system for buildings |
| 07/10/1990 | US4939910 Air conditioner |
| 07/10/1990 | US4939909 Control apparatus for air conditioner |
| 07/04/1990 | EP0210243B1 Air temperature control device for a vehicle |
| 06/20/1990 | CN2058470U Electric voltage and current combined protection type fully automatic air conditioner protector |
| 06/19/1990 | US4935601 Automatic control circuitry for an electrode boiler humidifier |
| 06/19/1990 | US4934397 Procedure and means for controlling volumetric flow rate in air-conditioning installations |
| 06/14/1990 | WO1990006476A1 Personal environmental module |