| 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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| 01/30/1979 | US4137058 Pre-cooler |
| 01/30/1979 | US4136732 Method and apparatus for controlling air-conditioning systems |
| 01/23/1979 | US4135440 Method and apparatus for ventilating or air conditioning occupied rooms |
| 01/23/1979 | US4135370 Humidity control apparatus |
| 01/23/1979 | CA1046782A1 Room heating devices with heat pumps |
| 01/16/1979 | US4134743 Desiccant apparatus and method |
| 01/16/1979 | US4134448 Heating and air conditioning system |
| 01/09/1979 | US4133652 Electronic air conditioner |
| 01/02/1979 | CA1045393A1 Air-conditioning apparatus with booster heat exchanger |
| 12/26/1978 | US4131059 Apparatus for forming and controlling currents of air |
| 12/19/1978 | CA1044614A1 Flow control apparatus for air filters |
| 11/28/1978 | US4127162 Modular air conditioning apparatus |
| 11/14/1978 | US4125151 Package heat exchanger system for heating and cooling |
| 11/14/1978 | US4124998 Air conditioning systems for buildings |
| 11/07/1978 | US4124046 Connecting device for intermittent air flow |
| 10/31/1978 | US4122893 Air conditioning system |
| 10/31/1978 | US4122892 Devices for heating premises by the use of heat pumps and method therefor |
| 10/24/1978 | US4121432 Solid adsorption air conditioning apparatus and method |
| 10/17/1978 | US4120347 Two-passage pipe, especially for air conditioning installations |
| 10/17/1978 | CA1040428A1 Combination re-conditioning unit and illuminating appliance for use with central air conditioning system |
| 10/10/1978 | US4118945 Enthalpy control for an environmental humidification and cooling system |
| 10/10/1978 | US4118934 Process and apparatus for transforming heat at a relatively low temperature into power or energy |
| 10/03/1978 | US4118226 Combination air filter and air treating device |
| 10/03/1978 | US4118209 Climate-control unit particularly for incorporation in a container |
| 10/03/1978 | US4118083 Cabinet base construction for roof top air conditioner |
| 09/19/1978 | US4114806 Thermostatically actuated regulator for a 4-lead air conditioning plant |
| 09/12/1978 | US4113004 Air conditioning process |
| 09/05/1978 | US4111359 Dwellings equipped with natural airconditioning installations |
| 09/05/1978 | CA1038061A2 Control circuit for heating/cooling systems |
| 09/05/1978 | CA1038026A1 Method and system for maintaining an electrically neutral or precise positive or negative atmoshphere |
| 08/29/1978 | US4109704 Heating and cooling cost minimization |
| 08/22/1978 | US4107940 Evaporative refrigeration system |
| 08/15/1978 | US4107756 Method and system for maintaining an electrically neutral atmosphere |
| 08/15/1978 | US4107268 Animal confinement environment control |
| 08/15/1978 | US4106552 Method of air-conditioning employing variable terminal box |
| 08/15/1978 | US4106307 Reverse-flow air conditioner |
| 08/15/1978 | CA1036376A1 Reversible latent heat storage method, and reversible latent heat accumulator |
| 08/08/1978 | US4105064 Two stage compressor heating |
| 08/08/1978 | US4105063 Space air conditioning control system and apparatus |
| 08/01/1978 | US4104185 Latent heat accumulator |
| 08/01/1978 | US4103598 Wall structure |
| 08/01/1978 | US4103509 Water heater-dehumidifier combination heat pump |
| 08/01/1978 | US4103508 Method and apparatus for conditioning air |
| 07/25/1978 | US4102656 Odor conditioner |
| 07/25/1978 | US4102494 Air distribution system |
| 07/25/1978 | US4102392 Low energy consumption air conditioning system |
| 07/18/1978 | US4100763 Multi-source heat pump HVAC system |
| 07/11/1978 | US4099553 Variable air volume system |
| 07/04/1978 | US4099047 Commode ventilation system |
| 06/13/1978 | US4094167 Heat pump assembly |
| 06/06/1978 | US4093435 Total heat energy exchangers |
| 05/30/1978 | US4091863 Reversible latent heat storage method, and reversible latent heat accumulator |
| 05/23/1978 | US4090370 Environmental control system |
| 05/16/1978 | US4089666 Method for control of air relative humidity with reduced energy usage |
| 05/02/1978 | US4086781 Variable air volume air conditioning system |
| 04/18/1978 | US4084389 Air conditioning apparatus |
| 03/28/1978 | US4081024 Air conditioning apparatus and method |
| 03/28/1978 | US4081023 Heat pipes to use heat from light fixtures |
| 02/28/1978 | US4076074 High efficiency natural convection heating and cooling system for home dwellings |
| 02/28/1978 | US4076073 Combination re-conditioning unit and illuminating appliance for use with central air conditioning system |
| 01/31/1978 | US4071082 Conversion of a dual duct, dual temperature air conditioning system to a single temperature system |
| 01/31/1978 | US4071080 Air conditioning system |
| 01/31/1978 | US4071078 Hydronic heating and cooling system |
| 01/10/1978 | US4067692 Odor control device |
| 01/10/1978 | US4067383 Heating and cooling system for a multiple coil installation |
| 01/10/1978 | US4067206 Condensate evaporation system for air conditioners |
| 01/10/1978 | US4067205 Super cooler for an air conditioning system |
| 01/03/1978 | US4065938 Air-conditioning apparatus with booster heat exchanger |
| 12/20/1977 | US4064203 Or deodorizer |
| 12/20/1977 | US4063595 Air conditioning system having safety features for determining and for eliminating dangerous conditions in the form of fire, smoke, or unusually high temperatures |
| 12/13/1977 | US4062400 Air handling method and system |
| 12/13/1977 | US4062129 Arrangement for preparing hot compressed air of reduced moisture content suitable for use in operation of blast furnace |
| 12/06/1977 | US4061186 Combined cooling and heat recovery system |
| 10/18/1977 | US4054812 Integrally focused low ozone illuminator |
| 09/20/1977 | US4049404 Ventilation system with thermal energy recovery |
| 09/20/1977 | US4048811 Combination of air conditioner and ventilating unit provided with total heat exchanger assembly |
| 09/20/1977 | US4048809 Air conditioning |
| 08/30/1977 | US4045192 Mobile filtering apparatus for keeping patients under aseptic conditions |
| 08/30/1977 | US4044823 Method and apparatus for controlling air-conditioning systems |
| 08/23/1977 | US4043141 Air conditioning method and apparatus with humidifier |
| 08/16/1977 | US4042016 Environmental humidification and cooling system |
| 08/16/1977 | US4042013 Method and apparatus for controlling air-conditioning systems |
| 08/09/1977 | US4040804 Water permeable paper sheet |
| 08/09/1977 | US4040565 Control unit for thermal conditioning systems |
| 08/02/1977 | US4039124 Dual duct variable volume air conditioning system |
| 07/26/1977 | US4038059 Oxidizable metal with hygroscopic oxide layer |
| 07/12/1977 | US4035451 Cartridge forming part of a system for inducing air flow past a product capable of being vaporized |
| 07/12/1977 | US4035172 Regenerative humidity and heat exchange apparatus |
| 07/12/1977 | US4034801 Optimum environmental control system for a building |
| 07/12/1977 | US4034659 Air diffusion unit and control mechanism therefor |
| 06/21/1977 | US4030518 Air flow control apparatus |
| 06/07/1977 | US4027498 Air conditioner |
| 05/24/1977 | US4025668 Method of manufacturing contact bodies |
| 05/24/1977 | US4025323 Electrostatic precipitator with television receiver |
| 05/24/1977 | US4024728 Method of and an installation for controlling the temperature of a plurality of rooms having mutually differing and varying heating requirements, among which rooms there is normally a cooling requirement |
| 05/17/1977 | US4023949 Evaporative refrigeration system |
| 04/26/1977 | US4019566 Air conditioning system |
| 04/19/1977 | US4018266 Building fresh air ventilator system |
| 04/12/1977 | US4017736 Air purification system utilizing ultraviolet radiation |
| 04/12/1977 | US4017025 Variable volume control box and system incorporating same |