| Patents for F24F 3 - Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems (19,462) |
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| 07/25/1989 | US4851016 Device for filtering a stream of air |
| 07/25/1989 | US4850537 Method and apparatus for producing multivortex fluid flow |
| 07/18/1989 | US4849862 Suspended air purifier light fixture |
| 07/18/1989 | US4849111 Regenerating dynamic adsorber system and method for obtaining cleaned fluid from contaminated fluid |
| 07/18/1989 | US4848654 Zone control and smoke damping apparatus for central heating and/or cooling systems |
| 07/13/1989 | DE3800103A1 Pollutant-destroying air scrubber |
| 07/12/1989 | EP0222777B1 Unit intended to restore the initial cleanness conditions in a quartz tube used as reaction chamber for fabricating integrated circuits |
| 07/12/1989 | CN1033868A Air-conditioning equipment |
| 07/05/1989 | EP0323356A1 Heating or cooling device for an air stream, particularly for heating or cooling rooms in a building |
| 07/05/1989 | EP0322635A1 Apparatus and method for environmental modification |
| 07/05/1989 | CN2040616U Heating tube focusing solar energy air conditioner |
| 07/05/1989 | CN2040605U Flowerpot type air freshening device |
| 07/04/1989 | US4843832 Air conditioning system for buildings |
| 06/29/1989 | DE3740944A1 Humidifying device for dwelling and working rooms |
| 06/27/1989 | US4842048 System for drawing the open air indoors |
| 06/27/1989 | US4841740 Method of and means for controlling the condition of air in an enclosure |
| 06/22/1989 | DE3741504A1 Ventilation, heating or air-conditioning appliance equipped with an activated-carbon filter, and method for operating the appliance |
| 06/21/1989 | EP0321419A2 An ionic air cleaner for homes and motor vehicles |
| 06/20/1989 | US4840650 Ceiling fan filter |
| 06/20/1989 | US4840036 Air cycle refrigeration system |
| 06/13/1989 | US4838910 Air driven filtration system |
| 06/13/1989 | US4838345 Combined air conditioning and ventilation assembly |
| 06/13/1989 | US4838344 Atmosphere control apparatus for theaters |
| 06/13/1989 | US4838150 Clean room |
| 06/07/1989 | EP0319145A2 Horizontal laminar air flow work station |
| 06/07/1989 | CN2039004U Water type air conditioning machine |
| 06/07/1989 | CN1033315A Arrangement for transporting air |
| 06/06/1989 | US4836183 Rotary body room air heater |
| 06/06/1989 | US4836096 Variable air volume air distribution system |
| 06/06/1989 | US4836095 Static pressure control in variable air volume delivery system |
| 06/01/1989 | WO1989004713A1 A process for gas conditioning |
| 05/30/1989 | US4834285 Heating and ventilating system |
| 05/24/1989 | EP0196333B1 Clean room constructing system |
| 05/24/1989 | DE3739145A1 Method and apparatus for dehumidifying rooms, in particular dwelling rooms |
| 05/23/1989 | US4832753 Multicompartment, impacting |
| 05/23/1989 | US4832717 Clean air cabinet |
| 05/23/1989 | US4832716 Ambient facial air cleaner for contact lens insertion |
| 05/23/1989 | US4832115 Method and apparatus for simultaneous heat and mass transfer |
| 05/17/1989 | CN2037825U Air filter |
| 05/17/1989 | CN2037824U Centrifugal stink eliminator |
| 05/16/1989 | US4830275 Temperature control of buildings |
| 05/16/1989 | US4830274 Pressure independent VAV valve with pressure dependent backup |
| 05/16/1989 | US4830095 Temperature control system for air conditioning system |
| 05/16/1989 | US4829781 Appliance for purifying and/or humidifying and dehumidifying gases, especially air |
| 05/16/1989 | US4829775 Filtered environmental control system |
| 05/10/1989 | EP0314762A1 Air conditioning apparatus |
| 05/10/1989 | CN1032857A Filtered enviromental control system |
| 05/09/1989 | US4829411 Lighting and air freshener fixture |
| 05/09/1989 | US4828168 Method of controlling duct-type air conditioning system |
| 05/05/1989 | WO1989003962A1 Air-conditioner using regenerative cooling cycle |
| 05/03/1989 | CN1032624A Hyperbaric negative oxygen ion chamber |
| 05/02/1989 | US4827154 Control system for air cleaner |
| 05/02/1989 | US4826516 Moisture-remover and moisture-removing apparatus |
| 04/27/1989 | DE3735251A1 Method and device for producing naturally refined air |
| 04/27/1989 | DE3735219A1 Appliance for cleaning gases, especially room air |
| 04/26/1989 | EP0313504A2 Filtered environmental control system |
| 04/26/1989 | CN2036634U Sterilization and dust-collection type air filter unit |
| 04/25/1989 | US4823557 Dehumidifier water heater structure and method |
| 04/20/1989 | DE3832474A1 Vorrichtung zur wahl des von einer raumluftaufbereitungseinheit angesaugten luftstroms Apparatus for selectively of sucked by a space air treatment unit air stream |
| 04/19/1989 | CN2036255U Electrically-cooling temp.-lowering clothes |
| 04/18/1989 | CA1252742A1 Compact blower and filter assemblies for use in clean air environments |
| 04/12/1989 | CN2035853U Purifier and filter for room air |
| 04/11/1989 | US4820319 Remote control and monitor means |
| 04/11/1989 | US4819716 Air conditioning system |
| 04/11/1989 | US4819714 Air conditioning apparatus |
| 04/11/1989 | US4819447 Method and means for controlling the condition of air in an enclosure |
| 04/11/1989 | US4819444 Air conditioning apparatus |
| 04/06/1989 | WO1989003006A1 An air conditioning apparatus, especially for regulating the flow of cold and warm air or a mixture thereof |
| 04/05/1989 | CN2035444U Water circulation type cooling wind ventilator |
| 04/05/1989 | CN2035443U Semiconductor refrigerating air condition |
| 04/04/1989 | US4817395 Method and apparatus for saving energy in an air conditioning system |
| 03/30/1989 | DE3728422A1 Air filter for natural odour concentration in rooms with simultaneously allergen-free air |
| 03/29/1989 | EP0309351A1 Apparatus for working in a dust free environment |
| 03/28/1989 | US4816332 Porous molded product and process for preparing the same |
| 03/28/1989 | US4815527 Multi-zone off-peak storage on-peak energy saving air conditioning |
| 03/23/1989 | WO1989002306A1 Clean air facility |
| 03/23/1989 | DE3830523A1 Device for cleaning and humidifying gases, in particular air |
| 03/22/1989 | CN2034663U Electricity-saving air conditioner |
| 03/21/1989 | US4813474 Air conditioner apparatus with improved dehumidification control |
| 03/15/1989 | CN2034253U Automatic humidifying apparatus |
| 03/14/1989 | US4811897 Duct type air conditioning system |
| 03/14/1989 | CA1251014A1 Method for heat and mass exchange operations |
| 03/09/1989 | DE3728859A1 Moisture exchange element |
| 03/09/1989 | DE3728730A1 Apparatus for conditioning room air |
| 03/09/1989 | DE3725242A1 Ventilation container for cleaning contaminated air volume flows for rooms providing protection against catastrophe |
| 03/08/1989 | EP0305445A1 A draining device and the use thereof. |
| 03/07/1989 | CA1250804A1 Moisture eliminator for air washer |
| 03/01/1989 | EP0304581A2 Temperature control of buildings |
| 02/28/1989 | CA1250639A1 Air conditioner |
| 02/23/1989 | WO1989001297A1 Hypobaric storage of respiring plant matter without supplementary humidification |
| 02/22/1989 | CN2033101U Warm, cold wind machine |
| 02/21/1989 | US4805689 Outdoor unit for a heat pump |
| 02/21/1989 | US4805317 Microwave regeneration of adsorbent materials for reuse as drying agents |
| 02/16/1989 | DE3726493A1 Method and device for limiting the room temperature in the case of drive machines which are arranged in closed rooms and develop waste heat |
| 02/14/1989 | US4804392 Clean air facility |
| 02/14/1989 | US4803846 Method of and means for controlling the condition of air in an enclosure |
| 02/14/1989 | US4803787 For applying dry air on tools which are heated by use |
| 02/09/1989 | DE3725444A1 Central four-way conditioning device for room air having tubular construction units |
| 02/08/1989 | EP0302768A1 Air conditioning plant for ventilating and air conditioning a plurality of rooms |
| 02/01/1989 | EP0301129A2 Filter wall/ceiling for installations of clean-room technology |