| 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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| 01/29/1991 | CA1279522C Clean air cabinet |
| 01/29/1991 | CA1279483C Air conditioning process and apparatus |
| 01/29/1991 | CA1279482C Air conditioning process and apparatus therefor |
| 01/29/1991 | CA1279481C Process and apparatus for cooling a fluid |
| 01/24/1991 | WO1991000772A1 Air conditioning process and apparatus |
| 01/24/1991 | WO1991000771A1 Air conditioning process and apparatus therefor |
| 01/24/1991 | WO1991000760A1 Process and apparatus for cooling a fluid |
| 01/24/1991 | WO1991000759A1 Method and apparatus for evaporation of liquids |
| 01/24/1991 | WO1990015289A3 Air conditioning system |
| 01/23/1991 | EP0409157A2 Air filtering control system |
| 01/23/1991 | CN2069983U Filter of ultrasonic humidifier |
| 01/17/1991 | DE3923039A1 Automatic ventilation or for rooms - includes selectively drying or improving and monitoring air for quality and quantity |
| 01/17/1991 | DE3921013A1 Monitoring air filter operation - by closable linkage to pressure meter from both sides of filter |
| 01/16/1991 | CN1048591A Energy saving integral air conditioner |
| 01/15/1991 | US4985057 Supplied air respirator system |
| 01/15/1991 | US4984434 Hybrid vapor-compression/liquid desiccant air conditioner |
| 01/15/1991 | US4984433 Air conditioning apparatus having variable sensible heat ratio |
| 01/09/1991 | CN1048337A Apparatus for cleaning flue gases |
| 01/08/1991 | US4982782 Method and apparatus for simultaneous heat and mass transfer |
| 01/08/1991 | US4982575 Apparatus and a method for ultra high energy efficient dehumidification and cooling of air |
| 01/02/1991 | CN1011065B Protecting device for compressor |
| 01/01/1991 | US4981021 Heat exchanger, system, and method for using the same |
| 12/27/1990 | CA1278356C Air conditioning apparatus |
| 12/25/1990 | US4979965 Method of dehumidifying gases |
| 12/19/1990 | EP0403230A1 Fluids cleaner |
| 12/19/1990 | CN1010884B Method for cooling material |
| 12/19/1990 | CN1010878B Filtered environmental control system |
| 12/18/1990 | US4977753 Method for indirect-evaporative air cooling |
| 12/13/1990 | WO1990015289A2 Air conditioning system |
| 12/13/1990 | DE3918339A1 Air supply cover for operating theatres - comprises pivot hung covers operated by power driven windlass with draw wires |
| 12/12/1990 | CN2067382U Underground radiation ultrasonic atomization air conditioner |
| 12/11/1990 | US4976757 Filtration plenum module constructed for on-site assembly |
| 12/11/1990 | US4976753 Snap-together housing for small appliances |
| 12/05/1990 | CN2066952U Air exchanging machine |
| 12/05/1990 | CA2018181A1 Aroma supply apparatus |
| 12/04/1990 | US4975251 Potting soil layer, plant and rootball on a support with air pumped from below and circulated back into room |
| 11/28/1990 | EP0399937A1 High performance dehumidifier for air conditioning |
| 11/28/1990 | EP0399003A1 Personal environmental module. |
| 11/28/1990 | CN2066326U Inhaling-type sterilizating purifier for air in room |
| 11/20/1990 | US4971611 Dehumidified air generator employing adsorbent |
| 11/15/1990 | DE3915248A1 Room air cleaner and humidifier with electrostatic filter - has HV wires and metallic or metallised plastic plates between air inlet and liq. surface |
| 11/14/1990 | EP0396842A1 Unit for producing a vertically moving laminar, sterilized air flow |
| 11/14/1990 | EP0396600A1 Improvements in heating and cooling systems. |
| 11/14/1990 | CN1010426B Clean room |
| 11/07/1990 | EP0396395A2 Method and apparatus for simultaneous heat and mass transfer utilizing a plurality of gas streams |
| 11/07/1990 | CN2065094U Room air purifier |
| 11/06/1990 | US4967726 Space heating and ventilation systems for buildings |
| 11/06/1990 | US4967645 Air shower with directed air flow |
| 11/06/1990 | US4967608 Test chamber for particle emitters |
| 10/31/1990 | CN2064873U Indoor air cleaner |
| 10/30/1990 | CA1275718C Air conditioning apparatus |
| 10/24/1990 | CN2064480U Cool air conditioners with humid curtain |
| 10/18/1990 | WO1990012257A1 Method in and device for air-conditioning of a room |
| 10/18/1990 | DE3925728A1 Air conditioning system for building - includes air-conditioner installed in air stream supply which enters room over window |
| 10/17/1990 | CN2064029U Domestic compound air conditioner |
| 10/16/1990 | US4963231 Method for evaporation of liquids |
| 10/10/1990 | EP0390815A1 A process for gas conditioning. |
| 10/09/1990 | US4961766 Adjustable ventilation, air purification and storage apparatus for modular office furniture |
| 10/04/1990 | DE4009691A1 Lufttrocknung mittels mikrowellen und einrichtung dafuer Air drying with microwave and means therefor |
| 10/03/1990 | CN1009858B Air conditioning system for building |
| 10/02/1990 | US4959970 Air conditioning apparatus |
| 09/25/1990 | US4959087 Air conditioning system filter with variable rate scent release |
| 09/25/1990 | CA1274414A1 Deodorizing air vent attachment |
| 09/25/1990 | CA1274391A1 Heat recirculation apparatus and method |
| 09/20/1990 | WO1990010828A1 Air conditioning unit |
| 09/20/1990 | DE3908329A1 Production apparatus in clean-room technology |
| 09/19/1990 | EP0387362A1 Air conditioning system for rooms |
| 09/18/1990 | US4957519 Air-cleaning apparatus |
| 09/18/1990 | CA1274111A1 Zoned air conditioning system |
| 09/18/1990 | CA1274094A1 Reverse cycle heat reclaim coil and subcooling method |
| 09/13/1990 | WO1990010827A1 Air-conditioning system |
| 09/13/1990 | CA2030536A1 System suitable for use in conditioning air in a plurality of rooms |
| 09/12/1990 | EP0386194A1 A dehumidifier. |
| 09/11/1990 | US4955997 Flush mounted ceiling air cleaner |
| 09/11/1990 | US4955285 System for covering the energy requirement of a room |
| 09/11/1990 | US4955205 Method of conditioning building air |
| 09/07/1990 | WO1990010830A1 Light fitting including filter elements |
| 09/07/1990 | WO1990010180A1 Improved zonal control of air conditioning system |
| 09/07/1990 | CA2047701A1 Light fitting including filter elements |
| 09/06/1990 | DE4005580A1 Light source for environmentally controlled area - has totally enclosed cooling air circuit and dissipates thermal energy up to 1000 watts |
| 09/05/1990 | CN2061668U Segmental absorption ultrasonic air conditioner with energy-storage box |
| 09/04/1990 | US4954049 Air circulation device |
| 09/04/1990 | US4953364 Suction guide device for dehumidifier |
| 09/03/1990 | WO1990009813A1 A scented air freshening device and method for making the same |
| 09/03/1990 | CA2032142A1 Scented air freshening device and method for making the same |
| 08/30/1990 | DE4004519A1 Combined ventilation and air conditioning system - allows mixing of extracted air with pre-conditioned external air |
| 08/30/1990 | DE3905741A1 Air-conditioning system in accordance with the combined air-washer/heat-exchanger principle |
| 08/29/1990 | EP0384884A2 Space ventilating system |
| 08/29/1990 | EP0383887A1 Damper-regulating arrangement for induction apparatus with cooling and heating batteries |
| 08/29/1990 | EP0383754A1 Method and device for conditioning of a gas |
| 08/28/1990 | US4952283 Apparatus for ventilation, recovery of heat, dehumidification and cooling of air |
| 08/23/1990 | DE3904623A1 Filter in particular for a vehicle |
| 08/22/1990 | EP0383402A1 Device for keeping a space dust poor and clean room provided with such a device |
| 08/22/1990 | EP0383236A1 Filter, especially for a vehicle |
| 08/22/1990 | EP0383010A2 Heat-regenerating adsorption plant for humid gaseous media |
| 08/22/1990 | EP0382937A1 Heat recovery adsorption plant for damp gaseous media |
| 08/21/1990 | US4950316 Dehumidification system |
| 08/14/1990 | US4948392 Heat input for thermal regenerative desiccant systems |
| 08/07/1990 | US4946479 Apparatus for solvent recovery |
| 08/07/1990 | US4945822 Air control apparatus for forced air central air conditioning systems |