Patents
Patents for F24F 13 - Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening (38,954)
04/1994
04/28/1994WO1994009483A1 Multiple source self noise cancellation
04/28/1994WO1994009301A1 Bladder damper
04/28/1994DE4342524A1 Ventilation unit for room - has two connected air distribution boxes with additional air outlet into room, having connection channel charged by air nozzle
04/28/1994DE4300226A1 Swirl outlet for air conditioning - has double housing forming ring channel with regulated air feed
04/28/1994DE4236031A1 Prodn. of clean air flow - involves device with tubular jacket to separate intake and axial ventilator, leaving air outlet
04/27/1994EP0594261A1 A device for mounting a plate-like body to the surface of a thin-walled support
04/27/1994EP0594076A1 Outlet with vortex flow
04/27/1994CN2163341Y Energy saving device for air conditioner
04/26/1994US5306210 Louvre type roof structures
04/21/1994DE4234800A1 Luftführungskanal mit einer eingesetzten Brandschutzklappe Air duct with a used fire damper
04/20/1994EP0592648A1 A damper device.
04/20/1994EP0592457A1 Air nozzle for ventilating or air conditioning installations
04/20/1994EP0592417A1 An arrangement in valve dampers.
04/20/1994CN2162615Y Supper-light wall hanging pipe device for air conditioner
04/19/1994US5304094 Method of mixing cold introduced air with warmer room air
04/19/1994US5303897 For use in a ventilating plant
04/19/1994US5303522 Internally flashed siding channel
04/17/1994CA2107870A1 Vacuum cleaner with improved assembly
04/14/1994DE4328727A1 Ventilation flap for conservatories - has bored rafters which have apertures in inferior purlin region for coupled shafts which support flap
04/14/1994DE4233932A1 Arrangement for laminar air flow laminator in air outlet - is formed by sheet metal plate, fitted in room air outlet, with fine perforations, whose dia. is related to plate thickness
04/13/1994CN2161862Y Condenser of window type air conditioner
04/13/1994CN2161290Y Air conditioner for high pressure oxygen tent
04/12/1994US5301744 Modular air conditioning system
04/07/1994DE4327629A1 Air-conditioning lamp with housing frame holding illumination unit - has air supply system connected to illumination unit by which are exhaust air openings and outlet openings for supply air.
04/06/1994EP0590536A1 Damper
04/05/1994US5299978 Air sweep mechanism
04/05/1994CA2074012C Air vent system
03/1994
03/31/1994WO1994006644A1 Pressure actuated door
03/31/1994WO1994004886A3 Passive air blast attenuators and ventilators
03/31/1994DE4232315A1 Air intake in outside walls of buildings - has S-shaped air deflection channel with sound/heat absorption, and air volume limitation unit with filter for regulation from zero to max.
03/31/1994CA2144975A1 Pressure actuated door
03/30/1994EP0439596B1 Bactericidal and fungicidal material for use in the manufacture of air-conditioning ducts
03/29/1994US5297989 Nozzle for discharging air and method
03/29/1994US5297395 Air conditioner using rotary-type heat exchangers
03/29/1994US5297373 Drainable blade louver
03/29/1994US5297326 Method and apparatus for converting a fixed-opening air diffuser to an individually-controlled variable air volume diffuser
03/29/1994CA2078968A1 Trap device for an air register
03/24/1994DE4306761C1 Air discharge outlet for air conditioning - has exit tube with insert tube, with associated unit of ring disc, control disc, guide disc, and baffle disc
03/22/1994US5295905 Air nozzle for a directed air flow into a room
03/22/1994US5295904 Air conditioning system
03/22/1994US5295531 Air conditioner with outside air introduction path
03/22/1994US5295367 For flushing impurities from the interior of an air conditioning circuit
03/17/1994DE4230604A1 Heat exchanger assembly for industry, offices, homes etc. - has one exchange unit coupled to air duct and unit surrounded by partial housing, whose walls are enclosed in casing
03/15/1994US5294195 Cover for the outside enclosure of an air conditioning system
03/15/1994US5293920 Louvered basement vent
03/15/1994US5293894 Automatic prime and flush siphon condensate pump system
03/15/1994US5293758 Outside section for split system air conditioning unit
03/09/1994EP0585865A1 Air humidifier
03/09/1994CN2158511Y Wind guiding device for air-conditioner
03/08/1994US5292282 Air guard
03/08/1994US5292103 Drain valve
03/03/1994WO1994004886A2 Passive air blast attenuators and ventilators
03/02/1994EP0585194A1 Mixer ejector flow distributor
02/1994
02/28/1994CA2096379A1 Air register with extendable deflector
02/22/1994US5289094 Light responsive airflow register
02/22/1994US5288267 Retrofit air circulation system
02/17/1994DE4326759A1 Fire proofing device for sealing off ventilation shafts in case of fire - consists of material whose original volume multiplies under heat conditions and this is placed in air duct
02/17/1994DE4305471C1 Air outlet in ceiling - has conduit floor perforated at regular intervals around air outlet nozzles
02/17/1994DE4226634A1 Ventilator, esp. for bathroom or kitchen - has electronically commutated DC inside-out motor to drive fan built into wall with filtered air inlet
02/16/1994EP0583156A1 Fire closure element
02/16/1994CN2156434Y Low-noise centrifugal ventilation machine
02/16/1994CN1082171A An air direction control apparatus
02/15/1994US5285818 Flexible duct with method of making same
02/11/1994CA2086768A1 Thermally responsive air diffuser
02/10/1994DE4302855C1 Air-conditioning device for heating or cooling room - has pulsed air stream provided by variable vol. chamber with heat exchanger on output side
02/09/1994CN2155521Y Noise-lowering centrifugal air duct for air conditioner
02/09/1994CN2155520Y Sourceless noise-lowering device for room air conditioner
02/08/1994US5285026 Reactive sound attenuator, in particular for air ducts in paper mills
02/08/1994US5284204 Hydronic thermal distribution system for space heating and cooling
02/08/1994US5284027 Air conditioning systems
02/03/1994WO1994002786A1 Ventilation apparatus
02/01/1994US5283398 For an internal combustion engine
02/01/1994CA1326705C Fan-powered mixing box assembly
01/1994
01/31/1994CA2074969A1 Damper closures
01/27/1994DE4224257A1 Corner angle section for an air channel - has formed profile in different directions providing sealed insertion fit
01/25/1994US5281187 Unitary vent and duct assembly
01/25/1994CA2101195A1 Floor vent
01/20/1994DE4322450A1 Outlet valve for domestic ventilator - has thin air filter extending across inlet cross-section
01/20/1994DE4223031A1 Room-air cooling method by heat-exchanger - cools secondary air current in heightened part of room and derives primary one solely from room air
01/20/1994DE4222971A1 Panel, for covering, cladding and insulating - comprises two edge strips and metal plates enclosing insulating layer
01/19/1994EP0579442A1 Ventilator
01/19/1994CN2153733Y Hot water vapor waste gas exhaust cover
01/18/1994US5279515 Air handling unit with improved acoustical performance
01/18/1994CA2013480C Covered split scroll for centrifugal blower
01/18/1994CA2001567C Nozzle outlet
01/11/1994US5277658 Barometric damper apparatus
01/11/1994US5277397 Bladder assembly for control of fluid flow and method of its fabrication
01/11/1994US5277036 Cooler, heater, and blower assembled in variety of configurations
01/06/1994WO1994000719A1 Ceiling vent with movable vane
01/05/1994DE4226687C1 Method for fitting filter in front of outlet aperture of air conditioning channel - involves fitting lower frame by dowels, bolts or adhesion on wall around outlet aperture
01/04/1994US5276291 Acoustic muffler for high volume fluid flow utilizing Heimholtz resonators with low flow resistance path
01/04/1994US5275333 Air conditioning system providing for individual work station control
01/04/1994CA2011786C Ventilation grille
12/1993
12/29/1993EP0575896A1 Volume flow regulator for a ventilation or an air conditioning system
12/28/1993US5274201 Noise muffler for an air blower
12/28/1993US5274200 Sound containment enclosure
12/28/1993US5272889 Pulley mounting and bearing system for air conditioners with dual tangential blowers
12/22/1993EP0467946B1 Airflow regulating valve
12/21/1993US5271959 Method of preventing grease buildup in ductwork
12/21/1993US5271558 Remotely controlled electrically actuated air flow control register