Patents
Sitemap › F24 - Heating; Ranges; Ventilating › F24F - Air-conditioning; Air-humidification; Ventilation; Use of air currents for screening › F24F 7 - Ventilation
Patents for F24F 7 - Ventilation (13,941)
12/1999
12/01/1999EP0959734A1 A device for ventilating vehicle chairs
11/1999
11/30/1999US5993519 Method of exchanging filters in a clean room and auxiliary device for use in the exchanging of the filters
11/30/1999US5993311 Clean room ceiling structure
11/30/1999US5992161 Make-up handler with direct expansion dehumidification
11/25/1999DE19822335A1 Impulse ventilation system for waste gases like carbon monoxide
11/25/1999DE19820771A1 Multi-part universal plastics ventilation tile, for installation above ridgepole of pitched roof of building has pattern of orifices in central portion, and has flexible side wings attached to it
11/24/1999CN2350673Y Air intake device for dustless coating room
11/24/1999CN2350672Y Air scavenging machine for closet
11/18/1999WO1999058399A1 Ventilation
11/18/1999WO1999058398A1 A system for air-conditioning environments, particularly cabins on board ships and barges
11/17/1999CN2349492Y Ventilation pipe for storied-building
11/17/1999CN2349491Y Improved structure for turbo-exhauster
11/17/1999CN2349490Y Structure improved ventilator
11/17/1999CN1235060A Method for determining filter replacement time of air
11/16/1999US5984775 Grating and shutter apparatus for controlling air flow
11/11/1999WO1999024761A3 Air-conditioning device for technical premises such as measuring rooms
11/10/1999EP0954725A1 Method and means for purifying air with a regenerable carbon cloth sorbent
11/10/1999EP0954390A1 Fume hood having a bi-stable vortex
11/10/1999CN2348290Y Ventilating device
11/10/1999CN2348289Y Cooking fume collecting air exhauster
11/09/1999CA2091284C Fume hood with baffle control linkage
11/03/1999CN2347096Y Window non-power loss multifunctional high effective exhauster
11/03/1999CN2347095Y Indoor new air ventilator
11/02/1999US5976220 That uses a membrane to exchange gas constituents through a diffusion process while substantially blocking particle transfer.
10/1999
10/28/1999WO1999054572A1 Mobile system for reducing the exhaust-gas pollution rate in the stagnant regions of the ground atmospheric layer
10/28/1999CA2236198A1 Heat convection device for suspended ceilings
10/27/1999EP0694151B1 Method and device for supplying air to a ventilated space
10/27/1999CN2345912Y Drawing fan for gas water heater
10/27/1999CN1046015C Construction method for multi-utilization of corrugated slab
10/26/1999US5972060 Apparatus for providing a purified resource in a manufacturing facility
10/26/1999US5971848 Plastic ridge vent
10/20/1999EP0950857A1 Mechanical fumes aspirator with lateral release
10/20/1999CN2344694Y Test bed with universal ventilating device
10/20/1999CN1232154A Ventilating device
10/19/1999US5969942 Means for the ventilation of electrical and electronic equipment and subassemblies
10/14/1999WO1999051833A1 Smoke removal vent device
10/12/1999US5964926 Gas born particulate filter and method of making
10/12/1999US5964659 For increasing the flow of sweeping gas used to remove leakage gases
10/12/1999US5964190 Pet shelter
10/07/1999WO1999050603A1 Air intake and blowing device
10/06/1999EP0946257A1 Diffusional gas transfer system and method of using same
10/05/1999US5961702 Air replenishment unit
10/05/1999US5960595 Laminate comprising matting layer and roof construction containing the same
10/05/1999CA2116134C Method and apparatus for controlling a fume hood
09/1999
09/29/1999EP0945560A2 Roof ventilator
09/28/1999US5957212 Installation for fighting fire
09/22/1999EP0943071A1 Building facade
09/22/1999EP0942784A1 Gas borne particulate filtration device and method of manufacturing thereof
09/21/1999US5954046 Heating and ventilation system for a building
09/21/1999US5954013 Ventilated cage and rack system
09/21/1999CA2073136C Pressure gradient control system
09/14/1999US5950447 Desiccant assisted air conditioning system
09/10/1999WO1999045327A1 Attic vent
09/08/1999CN2337453Y Residential waste gas exhauster
09/08/1999CN2337452Y Air suction blower
09/08/1999CN2337438Y Differential window type scavenger fan
09/07/1999US5947817 Rollable roof ventilating device and methods for use thereof
09/07/1999US5947816 Modular soffit vent
09/07/1999CA2145651C System for controlling flow through a process region
09/01/1999CN2336253Y Multifunctional air heater
09/01/1999CN1227329A Ventilator for range with protective hood
08/1999
08/31/1999US5943878 Tangential fan scroll and discharged diffuser design
08/26/1999DE19807043A1 Heat-retaining component for buildings or rooms with limit walls
08/25/1999EP0937224A2 Regenerator heat exchanger having one or more adjustable performance characteristics
08/25/1999CN2335078Y Natural energy turbine ventilator
08/25/1999CN2335077Y Warm keeping bidirectional scavenging means
08/25/1999CN2335076Y Bidirectional air flowing in dirty exhausting fan
08/25/1999CN2335075Y Energy-saving scavenging cool air blower
08/24/1999US5941767 Air circulating device
08/18/1999CN2333948Y Computer controlled frequency-changing speed-regulating large roof fan
08/18/1999CN2333947Y Hollow blade scavenger fan
08/17/1999US5938527 Air ventilation or air supply system
08/17/1999US5937933 Regenerator heat exchanger having one or more adjustable performance characteristics
08/12/1999WO1999039804A1 Effluent containment assembly
08/11/1999EP0935103A2 Valve for an exhaust channel of a house
08/11/1999EP0772710B1 Hood for a wire part and for a press section
08/11/1999CN2332949Y Dust removing appts.
08/11/1999CN2332948Y 自然空气调节装置 Natural air conditioning apparatus
08/11/1999CN2332947Y Frequency conversion fan coiler
08/10/1999US5934995 Ridge cap roof ventilator applied in assembled, rolled form and method of making and installing
08/10/1999US5934993 Aeration structure in buildings
08/10/1999US5934783 Ventilating fan/light combination
08/10/1999US5934362 For ventilating a room
08/05/1999DE19803357A1 End filter ventilation device for processes requiring high-purity environment
08/04/1999CN2331898Y So undproofing ventilation machine installed on roof
08/04/1999CN2331897Y Split air conditioner with two air intakes and outlets
08/03/1999US5931015 Desiccant assisted air conditioning system
08/03/1999CA2091283C Fume hood with panel retention system
07/1999
07/29/1999WO1999037956A1 Method at ventilation systems and arrangement for distributing air to room units
07/28/1999EP0931234A1 Method and apparatus for providing a purified resource
07/27/1999US5928077 Clean room for manufacturing of semiconductor device
07/27/1999US5927387 Heat exchanger
07/21/1999CN1223598A Exhaust gas purification apparatus
07/20/1999US5924925 Roof ventilating system for frame construction building
07/15/1999WO1999035446A1 Rollable roof ventilating devices and methods for use thereof
07/14/1999EP0928931A1 Ventilation system
07/14/1999CN1222618A No duct radical-mechanism for building
07/13/1999US5921863 Roof ventilating device
07/07/1999EP0927324A1 An air distributor or collector
06/1999
06/30/1999CN2326893Y High-temp air-quantity regulating valve
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