| Patents for F24F 13 - Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening (38,954) |
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| 10/01/1981 | WO1981002805A1 Record player |
| 09/30/1981 | EP0036438A2 Swivel damper for air ducts having a circular cross section serving as sealing and/or control damper |
| 09/29/1981 | US4291615 Linear air outlet |
| 09/29/1981 | CA1109628A1 Modular ceiling panel unit usable with air distribution systems |
| 09/23/1981 | EP0036038A1 Joint for the ends of two polygonal air ducts |
| 09/22/1981 | US4290554 Temperature actuated foundation ventilator |
| 09/22/1981 | CA1109316A1 Device for transfer of air mixed with gases, vapours, smaller particles etc. or of fresh air in the one or other direction between two places |
| 09/16/1981 | EP0035909A2 Air conditioning system |
| 09/15/1981 | CA1108918A1 Seal for damper blades |
| 09/08/1981 | US4287962 Packless silencer |
| 09/03/1981 | WO1981002458A1 Heating and cooling system |
| 09/02/1981 | EP0034888A1 An edge connection arrangement for connecting premanufactured duct sections and/or equipment cabinets |
| 09/01/1981 | CA1108000A1 Air supply means designed as a slit valve ventilator |
| 08/25/1981 | US4286001 Process for the production of industrial parts of synthetic material comprising a rigid portion surmounted by a flexible portion and the industrial part produced by said process |
| 08/25/1981 | CA1107560A1 Motorized air damper having 360 continuous rotation with two way switch control |
| 08/20/1981 | WO1981002338A1 Air inlet component |
| 08/11/1981 | CA1106834A1 Device for use in connection with heat exchangers for the transfer of sensible and/or latent heat |
| 08/04/1981 | US4281592 Double induction unit |
| 07/28/1981 | US4280647 Slit valve ventilator and method of attaching same |
| 07/28/1981 | US4280536 Connecting device for insulated duct work |
| 07/28/1981 | CA1105764A1 Damper assembly providing improved air distribution |
| 07/22/1981 | EP0032447A1 Means for controlling the flow of fluids through apertures and passages |
| 07/22/1981 | EP0032207A1 Slide ventilation |
| 07/21/1981 | CA1105521A1 Air-conducting passages |
| 07/14/1981 | US4277870 Method for installing an angle blade damper |
| 07/08/1981 | EP0031406A1 Ventilation device, especially for large-volume vehicles such as omnibuses or the like |
| 07/07/1981 | US4277019 Electrically-controlled damper |
| 07/07/1981 | US4276954 Adjustable light and air-admitting window thermal and acoustic barrier system |
| 07/07/1981 | US4276818 Air distributor |
| 07/07/1981 | US4276817 Air bar assembly |
| 07/07/1981 | CA1104407A1 Automatic ventilator |
| 06/30/1981 | US4275762 Control damper |
| 06/23/1981 | US4274330 Ventilator and mounting frame assembly |
| 06/16/1981 | US4273283 Automatic air register |
| 06/11/1981 | WO1981001606A1 Ventilator |
| 06/09/1981 | US4271751 Air device with flexible mounting system |
| 06/09/1981 | CA1102607A1 System powered damper blade assembly for use in an air conditioning system |
| 05/27/1981 | EP0029043A1 Packless silencer. |
| 05/26/1981 | CA1101790A1 Cleanroom filter assembly |
| 05/26/1981 | CA1101779A1 Trim chute and method |
| 05/19/1981 | CA1101337A1 Fluid deflecting assembly |
| 05/14/1981 | WO1981001306A1 Acoustic filter silencer |
| 05/12/1981 | US4266722 Fluid deflecting assembly |
| 05/12/1981 | US4266470 Universal air diffuser |
| 05/12/1981 | CA1100808A1 Sterile air recycling apparatus |
| 05/12/1981 | CA1100807A1 Device for transfer of substantially fresh air from a stationary place to a moving receiving place |
| 04/28/1981 | US4263930 Diffuser concealable, volume control, heat-responsive, semi-automatic resetting, butterfly damper and operator |
| 04/28/1981 | US4263842 Adjustable louver assembly |
| 04/22/1981 | EP0027276A2 Transportable conduit section |
| 04/22/1981 | EP0027131A1 Air flow system. |
| 04/16/1981 | WO1981001041A1 Transportable conduit section |
| 04/16/1981 | WO1981001026A1 Arrangement and method in sound damping of conduits for ventilation in framework elements |
| 04/14/1981 | US4261519 Air distribution system |
| 04/07/1981 | US4259987 Linear damper system |
| 04/07/1981 | US4259898 Ceiling air outlet for climate control system |
| 04/07/1981 | CA1098759A1 Manifold for central heating installations |
| 03/31/1981 | US4258616 Air outlet for room ventilation |
| 03/31/1981 | US4258615 Ceiling construction for a heating, ventilation and air conditioning system |
| 03/31/1981 | CA1098276A1 Ceiling fixture with thermal protection |
| 03/24/1981 | EP0020461A4 Air distribution system. |
| 03/17/1981 | US4256143 Shut-off damper |
| 03/10/1981 | US4255176 Combined air purifier and destratifier |
| 03/10/1981 | US4254795 Airflow control mechanism insertable into an air duct |
| 03/03/1981 | US4253384 Ventilating and air conditioning arrangement |
| 02/24/1981 | US4252350 Joint assembly for air duct |
| 02/24/1981 | US4252053 Air outlet device for a vehicle with an air conditioner |
| 02/19/1981 | WO1981000443A1 Casing,particularly for air conditioning and ventilation machines as well as textile machines |
| 02/17/1981 | US4250800 Outlet tube for air conditioning systems |
| 02/17/1981 | US4250799 Sweeping air stream apparatus and method |
| 02/10/1981 | US4249571 Air control mechanism having noise suppression means |
| 02/10/1981 | US4249460 Wall ventilator construction |
| 02/10/1981 | CA1095316A1 Plenum chamber for ventilator |
| 02/03/1981 | US4248140 Duct outlet |
| 02/03/1981 | US4248057 Air conditioner |
| 01/27/1981 | US4246962 Device for use in connection with heat exchangers for the transfer of sensible and/or latent heat |
| 01/27/1981 | US4246922 Fluid flow control apparatus |
| 01/20/1981 | US4245965 Gas-handling apparatus |
| 01/13/1981 | US4244609 Sheet-metal corner piece for joining profiles of gas duct flange joint |
| 01/13/1981 | US4244397 Shut-off damper |
| 01/13/1981 | CA1093623A1 Cabinet base construction for roof top air conditioner |
| 01/13/1981 | CA1093373A1 Ventilation diffuser |
| 01/07/1981 | EP0020462A1 Damper for an air distribution system |
| 01/07/1981 | EP0020461A1 Air distribution system. |
| 01/06/1981 | US4243175 Temperature regulated wall ventilator construction |
| 12/30/1980 | US4241647 Air damper valve |
| 12/30/1980 | CA1092425A1 Drainable blade louver |
| 12/23/1980 | US4240264 Interior unit of a split type air-conditioning apparatus |
| 12/16/1980 | CA1091499A1 Ventilation system for the supply of air or exhaustion of fumes |
| 12/02/1980 | US4236598 Rotating self-cleaning sound absorber for ducts |
| 11/25/1980 | CA1090273A1 Flange joint |
| 11/18/1980 | CA1089696A2 Rotating blade fire damper |
| 11/11/1980 | US4232594 Modular ceiling panel unit usable with air distribution systems |
| 11/11/1980 | CA1089282A1 Automatic air register |
| 11/04/1980 | US4231514 Automatic ventilator |
| 11/04/1980 | US4231513 Thermally actuated diffuser |
| 11/04/1980 | US4231417 Method and apparatus for reducing corrosion in a heat exchanger |
| 11/04/1980 | US4231272 Trim chute and method |
| 10/30/1980 | WO1980002304A1 Packless silencer |
| 10/30/1980 | WO1980002262A1 Sweeping air stream apparatus and method |
| 10/28/1980 | US4230174 Damper assembly |