| Patents for F23L 17 - Inducing draught; Tops for chimneys or ventilating shafts; Terminals for flues (1,376) |
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| 01/24/2001 | CN2416384Y Domestic induced fan |
| 01/24/2001 | CN2416377Y Closed smoke prevention & dust control apparatus |
| 01/11/2001 | DE19932322A1 Weatherproofing system for chimney comprises cladding of ceramic material (bricks) |
| 01/09/2001 | US6170528 Assembly of orifice chambers progressively reducing operating pressure for large gas flows |
| 12/27/2000 | CN1278320A Incinerator for removng noxious substances |
| 12/21/2000 | WO2000077454A1 Shielding device |
| 12/20/2000 | EP1060347A1 Integrated security system for smoke extractor |
| 11/28/2000 | US6152817 Chimney cover |
| 11/15/2000 | EP1052461A2 Water heater |
| 11/15/2000 | CN2406164Y Stand-by blow-suction type smoke dusting collection device |
| 11/14/2000 | US6145258 Removable self-locking chimney cap |
| 10/31/2000 | US6141495 Portable flue heater to reduce or eliminate downdrafts |
| 10/11/2000 | CN2400700Y Inducing device for boiler air chamber |
| 10/04/2000 | EP1041342A1 Water heater |
| 09/28/2000 | WO2000056426A1 Preparation of water from flue gases |
| 09/27/2000 | CN2398518Y Dust-removal fan |
| 09/27/2000 | CA2301396A1 Water heater |
| 09/19/2000 | CA2217796C Water heater with co-located flue inlet and outlet |
| 09/05/2000 | US6112850 Acoustic silencer nozzle |
| 09/05/2000 | US6112741 Mid-efficiency furnace with multiple venting option |
| 08/29/2000 | US6109255 Apparatus and method for modulating the firing rate of furnace burners |
| 08/23/2000 | EP1030110A1 Incinerator for removing noxious substances |
| 08/23/2000 | EP1029199A1 Space heating appliances |
| 08/15/2000 | US6102030 Furnace vent and intake terminal and blockage safety shut down system |
| 07/20/2000 | DE19860237C1 Roof passage for a chimney pipe has a wind guide to deflect striking wind into the chimney pipe to be caught in a trough to reduce effects of wind on exhaust gas escape and prevent ice forming |
| 07/05/2000 | EP1015822A1 Method for operating a stove in a building, and a device for carrying out this method |
| 07/04/2000 | US6083098 Collective air intake and exhaust chimney |
| 07/04/2000 | US6082993 Induced draft heater with premixing burners |
| 06/28/2000 | CN2385223Y House chimney device |
| 06/21/2000 | EP1010941A2 Duct for the escape of flue gas and intake of the combustion air |
| 06/07/2000 | CN1255610A Power ventilation water heater with air inlet |
| 05/31/2000 | DE19918441C1 Room boiler offgas and air layout has spent room air line connected to casing space round offgas vent pipe in vent shaft plus fire protection valve at spent air connection. |
| 05/16/2000 | US6062608 Coaxial flue-system for direct-vent fireplaces |
| 05/13/2000 | CA2281998A1 Inlet/exhaust structure for an outdoor furnace |
| 04/30/2000 | CA2252271A1 Balanced flue sealed vent terminal assembly |
| 04/25/2000 | US6053162 Balanced flue sealed vent terminal assembly |
| 04/19/2000 | EP0994303A1 Power vented water heater with air inlets against flame flash-back |
| 04/13/2000 | CA2260524A1 Positive air flow ventilation system |
| 04/04/2000 | US6044835 Furnace vent and intake terminal and blockage safety shut down system |
| 03/22/2000 | CN2370294Y Universal wind-proof smoke pipe |
| 03/21/2000 | US6039041 Methods of fabricating a vent/intake system for a fuel-fired, direct vent heating appliance |
| 03/16/2000 | WO2000014450A1 Incinerator for removing noxious substances |
| 03/16/2000 | DE19840349A1 Votary candle assembly for church has suction hood to prevent soot dispersal in the building |
| 03/15/2000 | CN2369092Y 民用引风机 Civil induced draft fan |
| 03/07/2000 | US6032616 Rapid response hot water heater |
| 02/16/2000 | EP0979973A1 Wall duct with a collar counteracting recirculation |
| 02/09/2000 | EP0978574A1 Compositions of cationic surfactants and their use as antifouling agents for induced draft fans (IDF) |
| 02/09/2000 | CN2363185Y Double-conical pneumatic wind-proof cap |
| 02/08/2000 | US6022269 Stackable chimney cap |
| 02/04/2000 | CA2279553A1 Cationic surfactants as antifouling agents for induced draft fans (idf) |
| 02/02/2000 | CN2361986Y Inducing draught and air-feeding fan |
| 01/27/2000 | WO2000004323A1 Combined static/dynamic device for evacuating gas fluids |
| 01/19/2000 | EP0972991A1 Static/dynamic gas extraction device |
| 01/19/2000 | CN2359384Y Safety flue |
| 01/10/2000 | CA2239958A1 Chimney ventilator for reduction of soot, creosote buildup and backdrafts |
| 01/09/2000 | CA2277102A1 Chimney cowl |
| 12/14/1999 | US6000391 Positive air flow ventilation system |
| 12/09/1999 | DE19837537C1 Seal for hearth chimney duct |
| 12/09/1999 | DE19824204A1 Catalytic emissions reduction unit for a domestic heating system |
| 12/07/1999 | US5997295 Inlet/exhaust structure for an outdoor furnace |
| 11/30/1999 | US5993309 Chimney fan |
| 11/10/1999 | CN2348260Y Automatic chimney smoke exhauster |
| 10/26/1999 | US5971292 Method of venting a furnace |
| 10/20/1999 | EP0950857A1 Mechanical fumes aspirator with lateral release |
| 10/14/1999 | DE19815493A1 Cap for chimney with discharge air pipe and inlet pipe |
| 10/13/1999 | CN2343489Y Cold/hot air chimney smoke exhausting machine |
| 10/06/1999 | CN2342241Y Low pressure high temperature energy saving dust removing boiler |
| 10/05/1999 | US5960787 Gas appliance combustion systems |
| 09/22/1999 | CN2339872Y Civil chimmey draught fan |
| 09/14/1999 | US5950573 Power vented water heater with air inlet |
| 09/10/1999 | WO1999045324A1 Integrated security system for smoke extractor |
| 09/10/1999 | CA2322703A1 Integrated security system for smoke extractor |
| 08/27/1999 | CA2240247A1 Chimney draft inducer |
| 08/24/1999 | US5941230 For varying the proportions of combustion products to dilute air in vent gas |
| 08/11/1999 | CN2332911Y Tunnel draught fan |
| 07/21/1999 | EP0930463A2 Discharge structure for closed gas appliances |
| 07/20/1999 | US5924390 Water heater with co-located flue inlet and outlet |
| 07/15/1999 | DE19800420A1 Apparatus for cleaning outgoing air from furnaces |
| 07/14/1999 | CA2249688A1 Vent cap for exhausting gas from a chimney duct under high-velocity wind conditions |
| 07/07/1999 | CN2327904Y Chimney with varied diameter for enhancement of blowing |
| 06/17/1999 | DE19755617A1 Combined air and hot flue gas extractor fitted in roof of building |
| 05/20/1999 | WO1999024757A1 Space heating appliances |
| 04/14/1999 | EP0908677A2 Pipestill heater |
| 02/09/1999 | US5868615 For a chimney flue |
| 01/13/1999 | CN2304016Y Detachable chimney |
| 12/30/1998 | CN1203342A Outdoor burning machine |
| 12/17/1998 | WO1998057099A1 Method for operating a stove in a building, and a device for carrying out this method |
| 12/16/1998 | CN2300810Y Adjustable constant temperature inducing draft fan |
| 11/25/1998 | CN2298437Y Fuel draught fan |
| 11/24/1998 | US5839374 Blower for generating static pressure |
| 11/18/1998 | EP0878664A1 Gas injection device for inducing draught in a gaseous fluid transport system |
| 11/18/1998 | CN2297645Y Negative pressure exhaust device |
| 11/17/1998 | CA2139684C Termination device for horizontal direct vent gas fireplaces or the like |
| 11/10/1998 | US5832844 System for recycling used oil filters |
| 10/27/1998 | US5826520 Apparatus and process for high temperature cleaning of organic contaminants from fragile parts in a self-inerting atmosphere at below the temperature of combustion |
| 09/17/1998 | WO1998040666A1 System for recycling used oil filters |
| 09/17/1998 | CA2283928A1 System for recycling used oil filters |
| 09/02/1998 | EP0862021A2 Air intake for the exhaust gas and fresh air pipe of a heating system |
| 06/30/1998 | US5771819 Incinerating furnace |
| 06/25/1998 | DE19729716A1 Heating boiler unit with atmospheric burner |