Patents
Patents for F24F 12 - Use of energy recovery systems in air conditioning, ventilation or screening (4,852)
03/1981
03/17/1981CA1097532A1 Range ventilator
03/10/1981CA1097337A1 Device for the exchange of heat between supply air and exhaust air in indoor premises
03/05/1981WO1981000616A1 Heat exchanger
03/03/1981CA1096854A1 Heat exchanger device
02/1981
02/17/1981US4250917 Air flow reverser system
01/1981
01/27/1981CA1094542A1 Method and device for defrosting a heat exchange without impairment of its heat exchange efficiency
01/13/1981US4244422 Method and device for defrosting heat exchanger without impairment of its heat exchange efficiency
11/1980
11/04/1980CA1088921A1 Heat recovery system
10/1980
10/21/1980US4228849 Apparatus for controlling relative gas flow rates through ducts
10/16/1980WO1980002190A1 Method and arrangement for heat conditioning of buildings
10/14/1980US4227378 Method and device for improving the efficiency of a heat generator
10/07/1980CA1087143A1 Arrangement for transferring heat from the exhaust air leaving an enclosed volume to the input air supplied to said volume
10/02/1980WO1980002064A1 A heat exchanger in plants for ventilating rooms or buildings
09/1980
09/16/1980US4222436 Heat exchange apparatus
09/03/1980EP0014863A1 Continuous heat exchanger for a gaseous fluid
07/1980
07/22/1980CA1081978A1 Method and device for improving the efficiency of a heat generator
06/1980
06/03/1980CA1078820A1 Heat and moisture transferring system
05/1980
05/28/1980EP0011450A1 Air flow reverser apparatus
04/1980
04/29/1980US4200147 Device for the exchange of heat between supply air and exhaust air in indoor premises
01/1980
01/15/1980US4183398 Heating and air-conditioning system
01/08/1980US4182403 Arrangement for transferring heat from the exhaust air leaving an enclosed volume to the input air supplied to said volume
11/1979
11/27/1979US4175614 Heat exchanger device
10/1979
10/23/1979US4171722 Heat recovery system
10/16/1979CA1064260A1 Roof device for air-conditioning
08/1979
08/28/1979CA1061303A1 Heat recovery apparatus
05/1979
05/29/1979CA1055480A1 Ventilation system with thermal energy recovery
04/1979
04/24/1979CA1053221A1 Vertical counterflow heat exchanger apparatus
04/17/1979US4149590 Roof device for air conditioning
04/10/1979CA1052371A1 Heat recuperator structure
03/1979
03/06/1979US4142575 Run-around type energy recovery system
02/1979
02/13/1979CA1048490A1 Recuperator structure
10/1978
10/31/1978US4122834 Ventilating, cooling and heat reclaiming apparatus for cooking equipment
10/10/1978US4119142 Arrangement for transferring heat from the exhaust air leaving an enclosed volume to the input air supplied to said volume
08/1978
08/29/1978US4109705 Heat exchange in ventilation installation
07/1978
07/18/1978US4100963 Heat exchange system
01/1978
01/31/1978US4071080 Air conditioning system
12/1977
12/27/1977US4064932 All climate heat exchanger unit with adjustable temperature and defrost control
12/06/1977US4061186 Combined cooling and heat recovery system
09/1977
09/20/1977US4049404 Ventilation system with thermal energy recovery
09/20/1977US4048811 Combination of air conditioner and ventilating unit provided with total heat exchanger assembly
08/1977
08/16/1977US4042018 Packaging for heat exchangers
08/09/1977US4040804 Water permeable paper sheet
08/09/1977US4040477 Heat recovery apparatus
07/1977
07/12/1977US4034801 Optimum environmental control system for a building
01/1977
01/04/1977US4000778 Temperature-control system with rotary heat exchangers
12/1976
12/28/1976US3999603 Heat recuperator structure
11/1976
11/16/1976US3991820 Recuperator structure
11/09/1976US3990506 Heat exchanger
09/1976
09/14/1976US3980129 Heat exchange in ventilation installation
08/1976
08/10/1976US3973622 Temperature-control system with rotary heat exchangers
07/1976
07/20/1976US3969860 Thermal efficiency structure
07/13/1976US3968833 Method for heat recovery in ventilation installations
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