| Patents for F24F 12 - Use of energy recovery systems in air conditioning, ventilation or screening (4,852) |
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| 05/02/1989 | US4825936 Rotary heat regenerator |
| 05/02/1989 | CA1253385A1 Bay window with ventilator |
| 04/26/1989 | CN1032522A Warming-air cooling apparatus for the cabin of transportation |
| 04/20/1989 | WO1989003317A1 Heater/air-cooler for cabin of transport means |
| 04/04/1989 | US4817708 Ventilating unit for drawing and exhausting air |
| 03/28/1989 | US4815522 For changing the temperature of air |
| 03/14/1989 | CA1251014A1 Method for heat and mass exchange operations |
| 02/21/1989 | CA1250179A1 Ventilation system |
| 02/16/1989 | DE3726493A1 Method and device for limiting the room temperature in the case of drive machines which are arranged in closed rooms and develop waste heat |
| 01/31/1989 | CA1249477A1 Multimode ventilator |
| 01/24/1989 | US4799539 For extracting stale air from inside a roomT?????h)??????????0*0*0*0?0????T |
| 01/17/1989 | CA1248808A1 Air ventilation and filtration apparatus |
| 01/17/1989 | CA1248807A1 Air conditioner system for building |
| 01/03/1989 | US4794980 Air to air heat exchanger |
| 01/02/1989 | EP0235208A4 Air conditioning means and method. |
| 12/28/1988 | CA1247450A Ventilator unit |
| 12/20/1988 | US4792091 Method and apparatus for heating a large building |
| 12/14/1988 | EP0294730A2 Ventilation device |
| 11/17/1988 | WO1988008944A1 Ventilation means and ventilation procedure |
| 11/08/1988 | US4782888 Community thermal energy exchange system |
| 11/01/1988 | US4781240 Energy exchange method and apparatus |
| 10/20/1988 | DE3711301A1 Device for ventilation of a room |
| 09/20/1988 | US4771611 Air conditioning means and method |
| 09/07/1988 | WO1988006702A1 A ventilation and heat recovering system for plural room buildings |
| 08/18/1988 | DE3703754A1 Method and device for heat recovery from ventilation of preferably large rooms, factory workshops and the like |
| 08/02/1988 | USRE32722 Ventilation system with thermal energy recovery |
| 07/28/1988 | DE3700944A1 Device for supplying air to a building interior |
| 07/27/1988 | EP0275758A1 Independent unit for heat exchange between a primary and a secondary fluid, particularly of the air for the ventilation and conditioning of a room |
| 07/14/1988 | DE3644807A1 Method of treating the waste air from a continuous purification system, and system for carrying out the method |
| 06/30/1988 | WO1988004757A1 Independent unit for heat exchange between a primary fluid and a secondary fluid, particularly air for ventilation and air conditioning of a room |
| 06/30/1988 | WO1988004756A1 Turbomachine for propelling two media with heat transfer between the latter |
| 06/30/1988 | DE3643496A1 Stroemungsmaschine zum foerdern von zwei medien mit waermeuebertragung zwischen den medien Stroemungsmaschine for conveying two media with waermeuebertragung between the media |
| 06/09/1988 | DE3640347A1 Countercurrent heat exchanger |
| 05/31/1988 | US4747273 Heating and cooling system |
| 05/17/1988 | US4744409 Valve assembly for air treatment apparatus |
| 05/10/1988 | US4742957 Heat recovery ventilator |
| 05/04/1988 | CN87105889A Heat interchange type ventilation equipment |
| 05/03/1988 | US4741391 Method and apparatus for recovering of transmitted heat |
| 05/03/1988 | US4741390 Method and apparatus for heating, ventilating and exhaust air purifying of industrial buildings |
| 04/26/1988 | US4739624 Multi-zone thermal energy storage variable air volume hydronic heat pump system |
| 04/05/1988 | US4735061 Energy-saving system for an engine-driving air conditioning system |
| 03/15/1988 | US4730461 Multi-zone cold storage variable air volume air conditioning system |
| 01/12/1988 | US4718248 Four element refrigeration heat pump and geothermal control systems |
| 01/12/1988 | US4718130 Interdome enclosure system for a heated swimming pool |
| 12/22/1987 | US4713943 Evaporative cooler including an air-to-air counter-flow heat exchanger having a reverse temperature profile |
| 12/08/1987 | US4711293 Ventilator of the heat exchange type |
| 11/24/1987 | US4708197 Air to air heat exchanger |
| 11/04/1987 | EP0164393B1 Wind guard device |
| 10/29/1987 | DE3613942A1 Deaeration and aeration installation with a heat accumulator |
| 10/21/1987 | EP0241461A1 A ventilated floor. |
| 10/08/1987 | DE3611434A1 Method and apparatus for the optimum heating, ventilation and exhaust-air cleaning of industrial halls |
| 09/22/1987 | CA1227035A1 Air-conditioner |
| 09/16/1987 | EP0236704A2 Method of and device for recovering heat losses |
| 09/09/1987 | EP0235208A1 Air conditioning means and method |
| 09/08/1987 | US4691763 Ventilator including a double pass countercurrent heat exchanger |
| 08/25/1987 | US4688626 Ventilator unit |
| 08/25/1987 | US4688473 Wind guard device |
| 08/06/1987 | DE3602120A1 Control flap for a combined supply- and exhaust-air apparatus |
| 08/05/1987 | EP0230419A1 A method of ventilation. |
| 07/07/1987 | US4678025 Heating/cooling/ventilation unit |
| 06/24/1987 | EP0225896A1 Method and device for optimum heating, ventilation and exhaust air decontamination in industrial locals |
| 05/27/1987 | EP0222963A1 Method of and means for the waste heat recovery |
| 05/21/1987 | DE3540709A1 Heat recovery from outgoing stall air for incoming stall air |
| 05/19/1987 | US4665805 Apparatus for counterflow air to air generative heat exchange and ventilating a room space |
| 05/06/1987 | EP0220310A1 Heat exchanger |
| 05/06/1987 | CN85107839A Method and device for controlling air condition in hothouse |
| 04/29/1987 | CN86106807A Air conditioning means and method |
| 04/28/1987 | US4661133 Method for heat and mass exchange operations |
| 04/23/1987 | DE3634828A1 Changeable storage apparatus |
| 04/16/1987 | DE3536769A1 Method and device for utilising exhaust heat from exhaust air extracted from rooms to be heated |
| 04/07/1987 | US4655278 Heat recirculation apparatus and method |
| 03/31/1987 | US4653574 Air to air heat exchanger |
| 03/12/1987 | WO1987001436A1 Air conditioning means and method |
| 03/03/1987 | US4646817 Air to air heat exchanger |
| 03/03/1987 | US4646813 Multimode ventilator |
| 03/03/1987 | CA1218556A1 Ventilation system for building |
| 02/17/1987 | US4643246 Bay window with ventilator |
| 12/04/1986 | WO1986007129A1 Method and device for optimum heating, ventilation and exhaust air decontamination in industrial locals |
| 12/02/1986 | US4625628 Combined wall and ventilator module for a building |
| 11/06/1986 | WO1986006461A1 Heat exchanger |
| 10/21/1986 | US4617805 Air conditioner system for building |
| 10/15/1986 | EP0128188B1 Ventilation plant |
| 10/14/1986 | US4616696 Exhaust air heat exchanger |
| 10/01/1986 | EP0196175A2 Thermally efficient room ventilator |
| 09/16/1986 | US4611653 Ventilation system |
| 06/24/1986 | US4596284 Regenerative heat recapturing device |
| 06/18/1986 | EP0184887A1 Ventilation unit for buildings, especially for draught-free dwellings |
| 06/17/1986 | US4594855 Process and apparatus for ventilation with heat exchange |
| 06/03/1986 | CA1205458A1 Apparatus for recovering heat and ventilating a room space |
| 05/27/1986 | US4590990 For use in a livestock building |
| 05/20/1986 | US4589476 Air ventilation and filtration apparatus |
| 05/09/1986 | WO1986002684A1 A ventilated floor |
| 05/09/1986 | WO1986002683A1 A method of ventilation |
| 04/16/1986 | EP0177657A1 System for the covering of the power requirements of a room |
| 04/10/1986 | WO1986002145A1 System for meeting the energy requirements of a room |
| 04/01/1986 | US4579163 Heat exchanger core and air flow control |
| 03/12/1986 | EP0034146B1 Method and arrangement for heat conditioning of buildings |
| 02/25/1986 | US4572429 Method and means for conserving energy requirements and improving working conditions of a sock finishing factory |
| 02/25/1986 | US4572282 Ventilation system for building |
| 02/18/1986 | US4570449 Refrigeration system |