Patents for F24F 7 - Ventilation (13,941)
01/1982
01/12/1982CA1116163A1 Rotor for regenerative heat and/or moisture exchanger
01/12/1982CA1116006A1 Ventilator
01/08/1982EP0040213A4 Control of the atmosphere in an enclosure.
01/06/1982EP0042998A2 Positive shutoff for individual units of a central air conditioning system
12/1981
12/29/1981US4307655 Low profile ventilating hatch
12/08/1981US4304174 Segmented panel curtain opening closure
12/01/1981US4303007 Ceiling air outlet for air conditioning system
11/1981
11/25/1981EP0040213A1 Control of the atmosphere in an enclosure.
11/03/1981US4297940 Protective workplace and system
11/03/1981US4297818 Roof ventilating louver
10/1981
10/28/1981EP0038340A1 A housing for mounting hepa filters.
10/20/1981US4295416 Air distribution system
10/20/1981US4295415 Environmentally heated and cooled pre-fabricated insulated concrete building
10/20/1981CA1110904A1 Portable ventilating apparatus for purging underground installations and the like
10/14/1981EP0037553A2 Cowling flaps respectively door for spaces, stables or the like
10/06/1981CA1110162A1 Control of range hood emissions
10/01/1981WO1981002779A1 Aggregate mass air circulation and structural support system for generally enclosed structures
09/1981
09/29/1981CA1109686A1 Underground service module
09/15/1981US4290023 Voltage offset circuit for auto-zero low voltage amplifier
09/08/1981US4287816 Ventilator shroud
09/08/1981US4287815 Cover assembly for attic fans
09/02/1981EP0034818A2 Façade element
09/01/1981US4286508 Combination staircase and attic fan means
09/01/1981US4286420 Heat retention wall system
08/1981
08/25/1981US4285269 Portable ventilating apparatus for purging underground installations and the like
08/19/1981EP0034096A1 Circuit for the ventilation and filtration of the atmosphere within a closed space
08/11/1981CA1106834A1 Device for use in connection with heat exchangers for the transfer of sensible and/or latent heat
07/1981
07/28/1981US4280399 Roof ridge ventilator
07/22/1981EP0032207A1 Slide ventilation
07/07/1981CA1104407A1 Automatic ventilator
06/1981
06/30/1981CA1104122A1 Ventilator with heat exchanger
06/23/1981US4274330 Ventilator and mounting frame assembly
06/16/1981US4273032 Ventilator apparatus
06/09/1981CA1102609A1 Total exhaust laminar flow biological fume hood safety cabinet and method
06/02/1981US4270695 Underground service module
05/1981
05/28/1981WO1981001455A1 Control of the atmosphere in an enclosure
05/26/1981US4269007 Vent and baffles
04/1981
04/30/1981WO1981001109A1 A housing for mounting hepa filters
04/15/1981EP0026766A1 A heat exchanger in plants for ventilating rooms or buildings.
04/14/1981US4261255 Ventilation fan
03/1981
03/24/1981EP0020461A4 Air distribution system.
03/17/1981US4256257 Automatic chimney cap
03/17/1981CA1097531A1 Adjustable smoke extraction assembly
02/1981
02/17/1981US4251029 Underground service module
02/10/1981US4249461 Ventilating system for a livestock building
02/10/1981CA1095316A1 Plenum chamber for ventilator
02/03/1981US4248162 Table with electrostatic air purifier/cleaner
01/1981
01/27/1981US4246962 Device for use in connection with heat exchangers for the transfer of sensible and/or latent heat
01/20/1981US4245965 Gas-handling apparatus
01/20/1981US4245550 Electronic air cleaner for passenger compartment of vehicle
01/07/1981EP0020559A1 Method and arrangement for air condition control in buildings.
01/07/1981EP0020461A1 Air distribution system.
01/06/1981CA1092925A1 Stove structure
12/1980
12/16/1980US4239459 Fan with adjustable legs for improving building heating and cooling
12/16/1980US4239020 House and method for livestock raising
12/16/1980CA1091499A1 Ventilation system for the supply of air or exhaustion of fumes
12/09/1980CA1091219A1 Winch for handling an openable vent member of a building having a device enabling the instantaneous unlocking of the winch
11/1980
11/25/1980CA1090190A1 Air circulator
11/04/1980US4231288 Roof ventilating aperture seal
10/1980
10/28/1980US4230032 Spray booth with ventilation
10/28/1980US4230031 Biohazard containment apparatus and method
10/21/1980US4228729 Building roof structure
10/14/1980US4227446 Electronic air cleaner for passenger compartment of vehicle
10/14/1980CA1087444A1 Ventilating device with air cleaning means
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
09/30/1980US4224771 Method and apparatus for reducing the rate of heat transfer
09/23/1980CA1086126A1 Double inlet kitchen ventilator
09/16/1980US4222315 Vent block with pressed-in screen
09/16/1980CA1085714A1 Humidity and heat exchanger apparatus, method for its manufacture
08/1980
08/12/1980CA1083473A1 Animal confinement environment control
07/1980
07/29/1980US4214513 One-piece roof vent device and methods of constructing and utilizing same
07/22/1980CA1082036A1 Ventilator hatch assembly
07/15/1980CA1081528A1 Vent
07/01/1980US4210277 Automatic roof ventilator
07/01/1980CA1080677A1 Air purifying and moistening apparatus
06/1980
06/03/1980CA1078820A1 Heat and moisture transferring system
05/1980
05/13/1980US4202492 Air circulation system
05/06/1980US4201121 Method of venting heat from homes
05/01/1980WO1980000858A1 Method and arrangement for air condition control in buildings
04/1980
04/29/1980US4200034 Energy conserving construction
04/17/1980WO1980000743A1 Air distribution system
04/15/1980US4197683 Vent and baffles
04/08/1980US4196771 Ventilator with heat exchanger
04/01/1980US4195819 Winch for handling an elevating dome shaped member of a building having a device enabling the instantaneous unlocking of the winch
04/01/1980CA1074612A1 Method and apparatus for controlling air flow
03/1980
03/11/1980US4192385 Fire fighting apparatus
03/11/1980CA1073258A1 Roof ventilation
02/1980
02/26/1980US4189990 False ceiling
02/26/1980US4189989 Gable ventilators
02/26/1980US4189988 Insulation and ventilation system for mobile homes
02/26/1980US4189878 House roof insulation vent
02/12/1980CA1071546A1 Air supply apparatus
02/05/1980US4186717 Stove structure
01/1980
01/29/1980US4185545 Air circulator
01/22/1980US4184415 Air circulation apparatus
01/22/1980US4184414 Flexible cover vent
01/08/1980US4182487 Apparatus having a temperature sensitive element for controlling a damper in a ventilation system
01/01/1980US4181690 Ventilation and air conditioning unit
01/01/1980CA1068866A Rafter vent