Patents for F24F 7 - Ventilation (13,941)
06/1992
06/10/1992CN2106984U Roof ventilator driven by wind or power
06/09/1992US5119987 Ventilating apparatus
06/03/1992EP0488883A2 Control apparatus of an electrical appliance
06/03/1992CN1061648A Rotary fan type energy saving pneumatic purification method and apparatus
06/02/1992CA1302145C Diverting ground-borne gases from buildings
05/1992
05/29/1992WO1992008879A1 Device for minimizing room temperature gradients
05/29/1992WO1992008859A1 Method for producing an intermediate floor or a like wall construction with a sandwich structure and a wall construction produced by the method
05/26/1992CA1301525C Thermally insulated window with ventilation ducts
05/21/1992DE4036936A1 Method of ventilating large halls - involve forming architectural air channels like organ pipes to extract air downwards and from different levels
05/13/1992EP0485036A1 Ventilating device
05/12/1992US5112278 Extruded plastic roof ridge ventilator
05/12/1992US5112277 Blowing door for ultra-clean confinement container
05/12/1992US5111739 Air flow control system
05/06/1992EP0483239A1 Supply air terminal device.
05/06/1992CN2103761U Ventilator for making spring mattress warm in winter and cold in summer
05/06/1992CN2103686U Glass fiber reinforced plastic device for exhausting wind energy
04/1992
04/29/1992EP0482446A1 Microprocessor controlled climate control device for a plurality of mass transit vehicles
04/28/1992US5107792 Arrangement for keeping livestock
04/15/1992EP0480407A1 Clean room
04/14/1992US5104037 Microprocessor controlled climate control device for a plurality of mass transit vehicles
04/07/1992US5101847 Method and apparatus for equalizing airflow velocity
04/02/1992WO1992005326A1 Smoke vent for buildings
03/1992
03/31/1992CA1314753E Space ventilation and chimney drafting device
03/31/1992CA1298132C Space ventilation and chimney drafting device
03/25/1992CN2099934U Ventilation installation
03/24/1992US5097749 Ventilation control apparatus
03/24/1992US5097674 Air conditioning apparatus
03/17/1992US5096477 Clean air room for a semiconductor factory
03/17/1992US5095810 Roof ridge ventilation system
03/10/1992US5094676 Filter/fan assembly
03/10/1992US5094041 Ridge cap types roof ventilator
03/05/1992WO1992003657A1 Air circulation device
03/03/1992US5092520 Household dehumidifier
03/03/1992US5092225 Roof ridge vent
02/1992
02/19/1992CN2096716U Joining apparatus for ventilating duct
02/11/1992CA1295578C2 Self-contained air freshener and cartridge therefor
02/04/1992US5085368 System for controlling poultry house window closures
02/04/1992US5085134 For isolating smokers and tobacco smoke
01/1992
01/30/1992DE4023494C1 Ventilator for greenhouse roof - has hood mounted on plate and incorporates adjustable shutters
01/28/1992US5083500 Radon treatment system and method
01/22/1992EP0467421A2 Roof ventilator
01/21/1992US5082173 Environmental controller for a sealed structure
01/21/1992US5081914 Roof vent cap
01/21/1992CA1294481C Clean room system
01/16/1992DE4022392A1 Room-ventilation system in building - circulates air via local mixing area between inlet and outlet in roof
01/15/1992EP0466669A1 Adjustable air supply device
01/15/1992EP0250596B1 Clean room
01/14/1992US5080007 Tilted seamless vent and method for making the same
01/14/1992US5080005 Passive building vents
01/14/1992US5080003 Apparatus for ventilating the interior of high speed elevator cars
01/07/1992US5078764 Air purification apparatus
01/07/1992US5078574 Device for minimizing room temperature gradients
01/07/1992US5078047 Solar roof vent
01/02/1992EP0463697A1 Ventilating hatch
01/01/1992CN2092054U Air-cooling regulator
12/1991
12/31/1991US5077825 Space heater mounted to ceiling fan
12/31/1991US5076152 Apparatus for ventilation and removal of air
12/30/1991CA2020124A1 Hooded exhaust vent
12/27/1991EP0462199A1 Air conditioning unit.
12/12/1991WO1991019945A1 Air circulation system
12/12/1991WO1991019136A1 Gravity shutter
12/12/1991CA2085107A1 Air circulation system
12/10/1991US5070771 Roof ventilator
12/05/1991DE4026057C1 Room ventilation system - has ventilator below window with air feeder and glazing interval connected on outflow side to duct
12/04/1991EP0459135A1 Floor plate for false floors in ventilated spaces, particularly in clean rooms
11/1991
11/28/1991WO1991018247A1 Smoker's booth
11/28/1991DE4115848A1 Combination supply and return air device - comprises pair of turbines working in independent channels surmounted by ventilators
11/28/1991DE4108928A1 Air distributor-ceiling suspension module heat exchanger - is composed of sinusoidal plastics stiff or semi-stiff parts joined by H-shaped elastic connectors
11/27/1991EP0458725A1 Window with mechanical ventilation
11/26/1991CA1292465C Heat exchanger
11/21/1991EP0457289A2 Air conditioning system for multiple room buildings
11/20/1991CN2089142U Fan
11/20/1991CN2089141U Pressure resistance ventilating combined cage for granary
11/19/1991US5065668 Air circulation system
11/18/1991CA2083163A1 Smoker's booth
11/16/1991CA2041768A1 Air ventilation and heat exchange apparatus
11/13/1991CN1014757B Arrangement for transporting air
11/12/1991US5063962 Apparatus for the controlled ventilation of rooms
11/06/1991EP0454879A1 Ventilation apparatus for individual ventilation installation
10/1991
10/30/1991CN1014545B House respirator
10/29/1991US5060901 Whole house fan
10/29/1991US5060717 Air conditioner
10/29/1991US5060431 Ridge roof vent
10/23/1991CN2087310U Automatic electronic air exchanger
10/17/1991DE4100962A1 Air conditioning agricultural buildings with false ceiling - involves heat-exchange, air humidifier and stale air remover
10/16/1991CN2086875U Multipurpose air purifier
10/09/1991EP0450142A2 Clean air room for a semiconductor factory
10/08/1991US5055115 Air cleaner including an electrostatic precipitator
10/08/1991US5054380 External booster for forced air heating air conditioning system
10/02/1991CN2085928U Forced ventilator of air partition layer for natural ventilation of roof
10/01/1991US5053064 Air conditioning apparatus for a clean room
10/01/1991US5052286 Roof ridge ventilator
09/1991
09/25/1991EP0355106B1 A rotatable heat exchanger
09/24/1991US5050831 Fan mounting clamp apparatus
09/24/1991US5050667 Air ventilation and heat exchange apparatus
09/24/1991US5050581 Process and device for drawing off vapors and fumes
09/24/1991US5050489 Roof ventilator
09/19/1991DE4108258A1 Room ventilating and air conditioning - divides each room into zones with repeated air supply and extraction
09/17/1991CA1289224C Control system for air cleaner
09/12/1991DE4007418A1 Ventilation system for room - reinforces convection current induced by room radiator