| 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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| 07/30/1991 | US5035728 Air cleaner assembly |
| 07/30/1991 | CA1286882C Filtered environmental control system |
| 07/29/1991 | CA2008807A1 Air handling system with deodorizer injection |
| 07/24/1991 | EP0438037A1 Ventilation apparatus for ventilating a limited space within a building |
| 07/24/1991 | CN1013300B Air-conditioning apparatus |
| 07/23/1991 | US5034033 Modular electronic air cleaning device |
| 07/23/1991 | US5034032 Air cleaner and air filter |
| 07/17/1991 | EP0409984A4 Indirect-evaporation air cooling method |
| 07/17/1991 | CN2081056U Exchanger for universal air cleaner |
| 07/17/1991 | CA2022226A1 Deodorizing antibacterial composition |
| 07/16/1991 | US5031411 Efficient dehumidification system |
| 07/11/1991 | WO1991009755A1 Mobile apparatus for cleaning environmental air |
| 07/10/1991 | CN1052939A 空气调节装置 Air conditioning apparatus |
| 07/09/1991 | US5030423 Integrated air conditioning system |
| 07/09/1991 | US5030253 Blowing air into liquid to produce mist |
| 07/09/1991 | US5029518 Modular clean room structure |
| 07/03/1991 | EP0435000A2 Air outlet with filter |
| 07/02/1991 | CA1285632C Speed control of a variable speed air conditioning system |
| 07/02/1991 | CA1285420C System for providing energy supply required for a room of a building |
| 06/27/1991 | WO1991008822A1 Air-filtering unit |
| 06/26/1991 | CN1052546A Hygiene-type air conditioner |
| 06/25/1991 | US5025638 Duct type air conditioner and method of controlling the same |
| 06/20/1991 | DE3153687C2 Bakery air conditioning equipment |
| 06/18/1991 | US5024062 Multistage isothermal air dehumidification |
| 06/14/1991 | CA2005602A1 Method for heating and/or cooling air supplied into a building |
| 06/11/1991 | US5023020 Method for supplying aromas, apparatus therefore and facilities provided with same |
| 06/11/1991 | US5022819 Air fragrance device for ceiling |
| 06/11/1991 | US5022241 Residential hybrid air conditioning system |
| 06/05/1991 | CN2078427U Window type separating air conditioner |
| 06/04/1991 | US5020588 Method and apparatus for simultaneous heat and mass transfer utilizing a plurality of gas streams |
| 06/04/1991 | US5020335 Air conditioning |
| 06/04/1991 | US5020334 Localized air dehumidification system |
| 06/04/1991 | US5020333 Method of and means for controlling the condition of air in an enclosure |
| 05/30/1991 | WO1991007209A1 Process and gas burner for cleaning, degassing, disinfecting and/or decontaminating and process for manufacturing the gas burner |
| 05/29/1991 | CN2077968U Electrial dehumidizer |
| 05/28/1991 | US5019352 Scented air filter for use with a forced air central heating and cooling system |
| 05/22/1991 | EP0428414A1 Air conditioning method and apparatus |
| 05/21/1991 | US5017202 Gas treating apparatus |
| 05/21/1991 | US5017201 Tank type liquid air cleaner |
| 05/16/1991 | DE4035626A1 Cold and heat storage system - has solid storage material between convection preventing layers in storage chamber |
| 05/15/1991 | EP0427583A1 Method of air conditioning of rooms equipped with a false floor |
| 05/15/1991 | EP0427486A2 Air conditioner apparatus |
| 05/15/1991 | EP0427095A2 Air purifier |
| 05/15/1991 | CN2077093U Miniature air humidity controller |
| 05/15/1991 | CN1051420A Cold or warm wind electric fan |
| 05/14/1991 | US5014608 Clean room air system |
| 05/08/1991 | DE3936815A1 Work-table for semiconductor processing clean room - controls air flow vertically on to table to prevent air turbulence |
| 05/02/1991 | EP0424406A1 Air-conditioning device for premises |
| 05/01/1991 | CN2076213U Multifunction combined electronic refrigerating and heating apparatus |
| 05/01/1991 | CN1051078A Method and apparatus for air conditioning |
| 04/30/1991 | US5012159 Arrangement for transporting air |
| 04/30/1991 | US5010777 Apparatus and method for establishing selected environmental characteristics |
| 04/23/1991 | US5009683 Purifying air conditioner |
| 04/23/1991 | US5009078 Multi-system air conditioning machine |
| 04/23/1991 | US5009071 Process for adsorption cooling/conditioning by means of low-temperature heat |
| 04/18/1991 | WO1991005210A1 Method and device for maintaining a clean atmosphere at controlled temperature at a workstation |
| 04/17/1991 | CN2075314U Health dusting ventilator |
| 04/17/1991 | CN2075313U Air-conditioning device with low energy consumption and full new air supply |
| 04/17/1991 | CN1050762A Method and device for air conditioning |
| 04/11/1991 | DE3933620A1 Room air purification device - has blower operating in suction channel equipped with mechanical filter |
| 04/11/1991 | DE3930023A1 Maintaining filter sterility by heat from conductive section - incorporated in filter and directly or inductively heated |
| 04/10/1991 | EP0421459A2 Air conditioning apparatus |
| 04/09/1991 | US5005636 Variable air volume ventilating system and method of operating same |
| 04/09/1991 | US5005379 Air conditioning system |
| 04/04/1991 | DE3932899A1 Supply air outlet for rooms requiring exclusion of particles and germs - has predetermined size which controls amount of preheated air which is blown in |
| 04/02/1991 | US5003961 Apparatus for ultra high energy efficient heating, cooling and dehumidifying of air |
| 04/02/1991 | US5003867 Air conditioning system for grocery store or the like and diffuser units thereof |
| 03/28/1991 | DE3930872A1 Room air purifying electrostatic filter - has separator flow ducts as electrically conductive houses, spaced by insulators |
| 03/27/1991 | EP0419448A2 Apparatus for purifying the air of individual rooms |
| 03/26/1991 | US5001968 Grocery store air conditioning system having drop-down diffuser units therefor |
| 03/26/1991 | CA1281935C Personal environmental module |
| 03/19/1991 | US5000221 Flow control system |
| 03/19/1991 | CA1281795C Atmosphere control apparatus |
| 03/14/1991 | DE3927807A1 Bakterizides und fungizides material zum herstellen von klimakanaelen Bactericidal and fungicidal material for the manufacture of klimakanaelen |
| 03/07/1991 | WO1991002929A1 Bactericidal and fungicidal material for use in the manufacture of air-conditioning ducts |
| 03/06/1991 | EP0415747A2 Comfort integration and energy efficient method of air conditioning |
| 03/05/1991 | US4997029 Air conditioning apparatus |
| 03/05/1991 | US4996910 Sterile air trolley |
| 03/05/1991 | CA1280929C Clean room |
| 03/01/1991 | CA2024221A1 Comfort integration and energy efficient method of air conditioning |
| 02/28/1991 | DE3927673A1 Device for preparing clean room - involves separating clean room from others by time lock corridor |
| 02/27/1991 | CN2072204U Purification air-conditioner |
| 02/27/1991 | CN1011814B Air conditioner and method of dehumidifier control |
| 02/26/1991 | US4995307 Variable air volume ventilation system and method |
| 02/26/1991 | US4995242 Method of and means for controlling the condition of air in an enclosure |
| 02/20/1991 | EP0413184A2 Air to air recouperator |
| 02/19/1991 | US4993629 System for modifying temperatures of multi-story building interiors |
| 02/12/1991 | US4991459 Linear motion control arrangement |
| 02/12/1991 | CA1280026C Laboratory work station with controllable environment |
| 02/12/1991 | CA1279991C Filtered environmental control system |
| 02/06/1991 | CN1011536B System for indirect evaporative cooling of air in interior |
| 02/05/1991 | US4990313 Ultraviolet device |
| 01/30/1991 | EP0410098A2 Modular special climate room system |
| 01/30/1991 | EP0409984A1 Indirect-evaporation air cooling method |
| 01/29/1991 | US4987952 Apparatus for use in dehumidifying and otherwise conditioning air within a room |
| 01/29/1991 | US4987750 Air conditioning apparatus |
| 01/29/1991 | US4987748 Air conditioning apparatus |
| 01/29/1991 | US4987747 Air conditioning device |
| 01/29/1991 | US4987673 Apparatus for packaging semiconductor devices |
| 01/29/1991 | CA1279539C Method of and means for controlling the condition of air in an enclosure |