| Patents for F23L 13 - Construction of valves or dampers for controlling air supply or draught (771) |
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| 05/21/2003 | CA2405930A1 Humidifier with swingable cover |
| 05/02/2003 | EP1306618A1 Bearing assembly for shut-off and control dampers in flue ducts |
| 04/15/2003 | US6546897 Thermodynamically activated flue damper |
| 04/02/2003 | CN1407278A Direct airing radiator |
| 02/18/2003 | US6520848 Method and apparatus for maintaining the release of exhaust above a height threshold |
| 01/21/2003 | US6508246 Mechanical draft controller |
| 01/16/2003 | US20030010265 Arrangement for cleaning, airflow control and pushing away melt in air ports of incineration boilers |
| 01/05/2003 | CA2352482A1 Ceramic gas fired hearth burner |
| 01/03/2003 | WO2003001114A1 Exhaust damper |
| 12/27/2002 | WO2002103240A1 Melting device and waste treatment system |
| 12/18/2002 | EP1266177A1 Arrangement for cleaning, airflow control and pushing away melt in air ports of incineration boilers |
| 12/11/2002 | CN1384314A Fully automatic burner |
| 11/20/2002 | CN2521506Y Blowing-in temperature control apparatus for combustion machine |
| 11/06/2002 | CN1093910C Valve device |
| 10/16/2002 | EP0991898B1 Wind box for a chemical recovery furnace |
| 08/13/2002 | US6431125 Device for regulating and cleaning an air intake |
| 07/24/2002 | EP1029199B1 Space heating appliances |
| 06/12/2002 | EP1213456A2 Current control unit |
| 06/06/2002 | DE10060291A1 Strömungstelleinheit Flow actuator |
| 06/06/2002 | DE10055503A1 Fresh air inlet for central heating comprises a flap which opens the fresh air inlet using an electromechanical drive when the heating is on and closes the fresh air inlet |
| 05/23/2002 | DE10155940A1 Valve for flue or air duct has frame with rigid thrust surfaces, valve plate with rigid and elastic sealing rims, and blocking rim |
| 05/07/2002 | US6381963 High temperature intermittently sealable refractory tile and controlled air continuous gasifiers manufactured therewith |
| 05/02/2002 | CA2360980A1 High temperature intermittently sealable refractory tile and controlled air continuous gasifiers manufactured therewith |
| 04/03/2002 | CN2484487Y Hearth temperature monitoring apparatus of stacked blast furnace |
| 01/31/2002 | DE10024511C1 Rückbrennsicherung Flashback protection |
| 12/19/2001 | CN2466536Y Air controlling device |
| 11/22/2001 | WO2001088453A1 Switching valve and a regenerative thermal oxidizer including the switching valve |
| 11/22/2001 | US20010044090 Switching valve |
| 11/21/2001 | EP1156277A2 Protection against flashback |
| 10/10/2001 | CN2453249Y Double row blocking plate type wind gate |
| 10/03/2001 | CN1315626A Air distributor for low NOx powdered fuel burner |
| 08/23/2001 | WO2001061248A1 Arrangement for cleaning, airflow control and pushing away melt in air ports of incineration boilers |
| 07/17/2001 | US6261092 Switching valve |
| 07/10/2001 | US6257156 Wind box for a chemical recovery furnace |
| 06/26/2001 | US6250066 Combustor with dilution bypass system and venturi jet deflector |
| 05/30/2001 | CN2432461Y Air quantity control valve |
| 05/23/2001 | EP1102006A1 Improvements in or relating to valve control |
| 05/19/2001 | CA2326109A1 Improvements in or relating to valve control |
| 05/09/2001 | CN2429750Y Pneumatic angular actuating mechanism with two cylinders |
| 05/02/2001 | CN2428701Y Air-adjustable gas combustor |
| 04/25/2001 | EP1094275A1 Valve for recirculating combustion gas ducts |
| 04/17/2001 | US6217320 Space heating appliances |
| 02/27/2001 | US6192930 Valve device |
| 02/27/2001 | US6192810 Laminar flow air register |
| 01/30/2001 | US6178737 Combustor dilution bypass method |
| 01/10/2001 | CN1279375A Device for regulating air flow rate in wall embeded boiler with sealed chamber |
| 01/03/2001 | EP1065445A2 Device for regulating the combustion air flow rate of a boiler |
| 12/13/2000 | CN2410548Y Fire regulator for gasification furnace with powdery biological material |
| 10/11/2000 | CN2400699Y Circulating wind rate regulating device for forced fan |
| 09/13/2000 | EP1035376A1 Check valve for use in a gas fired water heater |
| 08/23/2000 | EP1029199A1 Space heating appliances |
| 08/16/2000 | CN1263229A Gas supplying device for high-temp. release burner of furnace and kiln |
| 07/05/2000 | EP1016822A1 Combustion air feeder for high heat release burner of kilns |
| 06/14/2000 | CN2382961Y Change-over device for heat storage industrial furnace |
| 06/06/2000 | US6070406 Combustor dilution bypass system |
| 04/12/2000 | EP0991898A1 Wind box for a chemical recovery furnace |
| 03/28/2000 | US6041771 Apparatus and method of automatically regulating intake of air into heating unit |
| 03/21/2000 | CA2282861A1 Apparatus and method of automatically regulating intake of air into heating unit |
| 03/14/2000 | US6035849 Damper clip extension |
| 02/16/2000 | CN1244909A Combustor dilution bypass system |
| 02/09/2000 | CN2363189Y Air valve with compensator |
| 01/26/2000 | CN2360732Y Wearproof smoke wind close door |
| 01/05/2000 | CN1048084C Poppet damper in exhaust gas duct |
| 12/29/1999 | EP0967437A1 Improvement to combustion apparatus with several combustion air inlet ducts |
| 12/08/1999 | EP0961868A1 A valve device |
| 11/23/1999 | US5988589 Air valve assembly including split-shaft and seal arrangement |
| 11/16/1999 | US5983930 Air supply valve |
| 10/06/1999 | EP0777839B1 Air supply valve |
| 09/15/1999 | EP0941442A1 Combustor dilution bypass system |
| 09/10/1999 | WO1999045323A1 A device for regulating and cleaning an air intake |
| 08/31/1999 | US5944506 Burner assembly with tight shut-off opposed louver air damper |
| 08/04/1999 | CN2331860Y Device for controlling first and sencond air quantity proportioning for combustion machine |
| 07/20/1999 | US5924276 Low emissions combustor system for a gas turbine |
| 07/13/1999 | CA2173539C Method and apparatus for feeding air into a furnace |
| 06/23/1999 | CN2325663Y Full automatic, multi-function memory type valve |
| 05/20/1999 | WO1999024757A1 Space heating appliances |
| 03/10/1999 | CN2310250Y Right angle cutting off round damper |
| 01/13/1999 | CN2304015Y High-pressure-difference pressure regulator |
| 01/07/1999 | WO1999000627A1 Wind box for a chemical recovery furnace |
| 01/07/1999 | CA2295777A1 Wind box for a chemical recovery furnace |
| 11/18/1998 | CN2297644Y Uniform pressure air regulating device for boiler |
| 11/18/1998 | CN2297643Y Damper for air-blower |
| 11/05/1998 | DE19718147A1 Waste gas diverter unit between gas turbine and waste heat boiler |
| 10/20/1998 | US5824275 Secondary and tertiary air nozzle for furnace apparatus |
| 09/30/1998 | CN1040039C 恒温气流控制器 Thermostat Air Controls |
| 09/23/1998 | EP0866272A2 Auxiliary air admission regulator |
| 08/19/1998 | CN1190696A Valve device |
| 08/18/1998 | US5795148 Method for eliminating of external atmospheric disturbances |
| 08/13/1998 | WO1998035138A1 A valve device |
| 07/01/1998 | CN2285422Y U-shaped material-backfeeding valve |
| 06/25/1998 | DE19652205A1 Combustion system for production of heat from liquid fuel e.g. in power plant |
| 06/18/1998 | DE19650995C1 Device for counteracting slackness on traction cable of vertical flue gas register |
| 06/04/1998 | WO1998023902A1 Combustor dilution bypass system |
| 06/03/1998 | CN2283191Y Smoke generator |
| 05/20/1998 | CN2282129Y Vertical door for horizontal boiler smoke box |
| 04/14/1998 | US5738337 Poppet damper in exhaust gas duct |
| 03/31/1998 | US5732692 Vent damper |
| 12/23/1997 | US5699746 Method and apparatus for feeding air into a furnace |
| 11/05/1997 | EP0805315A2 Ventilator frame profile, in particular for venting arrangement of fumes and hot exhaust gases |
| 10/18/1997 | CA2202964A1 Burner assembly with tight shut-off opposed louver air damper |