| 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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| 08/25/1981 | CA1107603A1 Flow control and fire detection apparatus |
| 08/25/1981 | CA1107505A1 System for drying humid air |
| 08/19/1981 | EP0034096A1 Circuit for the ventilation and filtration of the atmosphere within a closed space |
| 08/18/1981 | US4284236 Air conditioning system |
| 08/18/1981 | US4284132 Apparatus for conditioning air |
| 08/18/1981 | US4284129 Baseboard space heating, air conditioning and humidity control system |
| 08/11/1981 | US4283008 Pressurized signal control apparatus |
| 08/11/1981 | CA1106834A1 Device for use in connection with heat exchangers for the transfer of sensible and/or latent heat |
| 08/11/1981 | CA1106812A1 Air conditioning installations |
| 08/04/1981 | US4281522 Makeup air preconditioner for use with an air conditioning unit |
| 07/23/1981 | WO1981001995A1 Storage device for bodies,which shall be exposed to the environment such as hygroscopic bodies for the absorption of humidity |
| 07/07/1981 | US4277019 Electrically-controlled damper |
| 07/07/1981 | US4276817 Air bar assembly |
| 06/24/1981 | EP0030863A1 An exchange element for a heat and/or moisture exchange and an exchanger for heat and/or moisture |
| 06/23/1981 | US4274581 Package heat exchanger system for heating and cooling |
| 06/09/1981 | US4272261 Air purifying device |
| 06/09/1981 | US4272014 Humidification system |
| 06/03/1981 | EP0029573A2 Heat exchangers, their formation and arrangement in an installation for heat recovery by exchange of air, in particular for dwelling houses and comparable lay-outs |
| 06/02/1981 | CA1102233A1 Apparatus for the wet separation of foreign particles from air |
| 06/02/1981 | CA1102231A1 Device for extracting moisture from a space |
| 06/02/1981 | CA1102127A1 Humidity control appliance |
| 05/26/1981 | US4269611 Apparatus for drying or dehumidifying gases |
| 05/19/1981 | US4268285 Dispenser |
| 05/19/1981 | US4268282 Work bench with self-contained air cleaner |
| 05/19/1981 | US4267769 Prefabricated knockdown clean room |
| 05/19/1981 | CA1101211A1 Swimming pool dehumidifier |
| 05/12/1981 | CA1101096A1 Space air conditioning control system and apparatus |
| 04/30/1981 | WO1981001109A1 A housing for mounting hepa filters |
| 04/28/1981 | CA1099933A1 Cooling apparatus |
| 04/14/1981 | US4262210 Devaporizer-windmill system and apparatus |
| 04/07/1981 | US4259849 Chemical dehumidification system which utilizes a refrigeration unit for supplying energy to the system |
| 04/01/1981 | EP0026074A1 Method and apparatus for drying products, especially corn or piece products |
| 03/31/1981 | US4258656 Device in spray booths for e.g. spray-painting |
| 03/31/1981 | US4258615 Ceiling construction for a heating, ventilation and air conditioning system |
| 03/24/1981 | US4257389 Humidifier |
| 03/24/1981 | EP0020461A4 Air distribution system. |
| 03/18/1981 | EP0025342A1 Apparatus for extracting water from ambient air |
| 03/18/1981 | EP0025157A1 Method for washing the air in air conditioning installations |
| 03/10/1981 | US4255176 Combined air purifier and destratifier |
| 03/10/1981 | US4255171 Heat transfer medium for rotary heat transferrers |
| 03/10/1981 | US4255169 Method of conservation in processing industrial air |
| 03/10/1981 | US4254636 Heat transfer system |
| 02/24/1981 | US4253153 Energy conservative control of terminal reheat heating, ventilating, and air conditioning (HVAC) systems |
| 02/24/1981 | US4252003 Reduced power consumption air conditioning |
| 02/17/1981 | CA1095829A1 Method for control of air relative humidity with reduced energy usage |
| 02/10/1981 | CA1095242A1 Apparatus for neutralizing and purifying air |
| 02/03/1981 | US4248162 Table with electrostatic air purifier/cleaner |
| 02/03/1981 | CA1094806A1 Fluid conditioning apparatus and system |
| 01/27/1981 | US4246962 Device for use in connection with heat exchangers for the transfer of sensible and/or latent heat |
| 01/20/1981 | US4245550 Electronic air cleaner for passenger compartment of vehicle |
| 01/13/1981 | US4244712 Cleansing system using treated recirculating air |
| 01/13/1981 | US4244517 Temperature control for variable volume air conditioning system |
| 01/13/1981 | CA1093623A1 Cabinet base construction for roof top air conditioner |
| 01/13/1981 | CA1093302A1 Heating and cooling system |
| 01/07/1981 | EP0020559A1 Method and arrangement for air condition control in buildings. |
| 01/07/1981 | EP0020461A1 Air distribution system. |
| 01/06/1981 | US4242872 Attic mounted solar assist multi-source/sink residential heat pump system |
| 12/30/1980 | US4242112 Solar powered dehumidifier apparatus |
| 12/30/1980 | US4241783 Heating and cooling system |
| 12/09/1980 | US4238071 Air conditioning system and control therefor |
| 12/09/1980 | US4237859 Thermal energy storage and utilization system |
| 12/02/1980 | CA1090572A1 Solar energy assisted air-conditioning apparatus and method |
| 11/26/1980 | EP0019603A2 Porous hygroscopic heat exchanger wall element |
| 11/25/1980 | US4235608 Rotary-type counter-current heat exchanger |
| 11/25/1980 | CA1090307A1 Control for a combination furnace and heat pump system |
| 11/25/1980 | CA1090131A1 Air drying apparatus of the condensation type |
| 11/18/1980 | US4234038 Transfer wheel assembly for an air conditioner and method of making the wheel assembly |
| 11/11/1980 | CA1089423A1 Method for operating a heating system for dwelling, working and assembly rooms with heat pumps as heat generating device and a heating system for performing the method |
| 11/11/1980 | CA1089231A1 Roof top air conditioning unit |
| 11/04/1980 | US4231765 Air cleaning apparatus and method |
| 11/04/1980 | US4231516 Heat control systems |
| 11/04/1980 | US4231515 Pressurized control signal apparatus |
| 10/28/1980 | US4230032 Spray booth with ventilation |
| 10/21/1980 | US4228847 Core for use in humidity exchangers and heat exchangers and method of making the same |
| 10/21/1980 | US4228846 Control apparatus for a two-speed heat pump |
| 10/21/1980 | US4228786 Flow director |
| 10/21/1980 | US4228661 Method and apparatus for redistributing heat within a room |
| 10/15/1980 | EP0017590A1 Filter for removing dust from a gaseous fluid |
| 10/15/1980 | EP0016830A1 Radiant heating system using partitioned lighting plenums |
| 10/14/1980 | US4227894 Ion generator or electrostatic environmental conditioner |
| 10/14/1980 | US4227446 Electronic air cleaner for passenger compartment of vehicle |
| 10/14/1980 | US4227378 Method and device for improving the efficiency of a heat generator |
| 10/14/1980 | US4227375 Desiccant thermal energy storage system for compact heating and cooling |
| 10/14/1980 | CA1087394A1 System and method for liquid absorption air conditioning |
| 10/07/1980 | US4226364 Single conduit air conditioning system |
| 10/01/1980 | EP0016470A1 Water producing air conditioning system |
| 09/30/1980 | US4224861 Vaults and strongrooms |
| 09/30/1980 | CA1086549A1 Variable air volume system |
| 09/30/1980 | CA1086548A1 Apparatus for conditioning air |
| 09/30/1980 | CA1086499A1 Air conditioner |
| 09/16/1980 | US4222316 Room conditioning lamp |
| 09/16/1980 | US4222244 Air conditioning apparatus utilizing solar energy and method |
| 09/16/1980 | CA1085817A1 Rotor for moisture and/or heat exchangers as well as method and apparatus for manufacture thereof |
| 09/16/1980 | CA1085714A1 Humidity and heat exchanger apparatus, method for its manufacture |
| 09/16/1980 | CA1085636A1 Capillary retainer clip |
| 09/09/1980 | US4221575 Pneumatically operated airflow valve |
| 08/12/1980 | CA1083473A1 Animal confinement environment control |
| 08/05/1980 | US4215817 Devices for heating premises by the use of heat pumps and method therefor |
| 07/29/1980 | US4215408 Temperature control of unoccupied living spaces |
| 07/29/1980 | US4214626 Rejected heat air conditioning control system |