| Patents for F23L 17 - Inducing draught; Tops for chimneys or ventilating shafts; Terminals for flues (1,376) |
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| 06/09/1998 | US5762062 Fireplace vent |
| 04/08/1998 | EP0834697A1 Static extractor for ventilation or fume duct |
| 04/08/1998 | CN2278161Y Fume exhauster for heatable brick bed |
| 02/26/1998 | DE19714531A1 Rotary blade axial exhaust ventilator for chimneys etc. |
| 02/12/1998 | DE19710421A1 Holder for chimney cover plate |
| 02/10/1998 | US5715808 Direct vent fireplace |
| 01/28/1998 | CN2273377Y Hand-operated fireproof hood for chimney |
| 01/14/1998 | CN2272529Y Burner for boiler capable of automatic water-supplying agent-adding and inducing drauft |
| 11/26/1997 | EP0809074A1 Ice-free discharge structure |
| 11/05/1997 | EP0805307A1 Combustion system and combustion furnace |
| 10/28/1997 | US5680856 Discharge structure for closed gas appliances |
| 10/15/1997 | EP0801266A2 Cowl for chimney of a heating plant |
| 10/07/1997 | CA2099227C Standing pilot furnace with vented vestibule |
| 09/23/1997 | US5669811 Modular devices for the extraction of fumes |
| 09/16/1997 | CA2073077C Power blower ventilated hot gas water heater assembly with ambient air mixing means |
| 06/10/1997 | US5636598 Induced draft combustion water heater |
| 05/29/1997 | WO1997019295A1 Combustion system and combustion furnace |
| 05/07/1997 | EP0772003A1 Device for drawing off a gas through a conduit for venting it |
| 04/17/1997 | DE19624369A1 Chimney top with heat insulation around smoke tube |
| 04/15/1997 | US5620302 Dynamic condensate evacuator for high efficiency gas furnaces |
| 03/18/1997 | US5611330 Induced draft fryer |
| 03/12/1997 | EP0762055A1 Forced draught gas-oil heater control device |
| 03/12/1997 | EP0762054A1 Pressure ring for roof duct |
| 03/12/1997 | EP0762052A1 Pebble bed furnace |
| 03/12/1997 | EP0663991B1 Waste incineration apparatus and plant |
| 03/11/1997 | US5609522 Combination damper and chimney cap apparatus |
| 03/05/1997 | CN2248828Y Lifting or lowering type chimney |
| 03/04/1997 | US5606768 Emissions collection and venting system for van-mounted cleaning apparatus |
| 02/27/1997 | DE19633755A1 Pellet-fired solid fuel stove |
| 02/09/1997 | CA2155598A1 Direct vent fireplace |
| 01/15/1997 | EP0753703A2 Cowl |
| 01/07/1997 | US5590610 Waste burning boiler |
| 01/02/1997 | EP0751348A1 Device for reducing the visibility of a cloud of smoke from a chimney |
| 12/20/1996 | CA2152127A1 Emissions collection and venting system for van-mounted cleaning apparatus |
| 11/20/1996 | CN2240673Y Jetting type inducing drauft machine |
| 11/19/1996 | US5575273 Balanced flue outdoor water heater |
| 11/05/1996 | US5571045 Assemblable turbine air pump |
| 11/05/1996 | US5570681 Residential boiler/furnace with the intermediate water circuit |
| 10/08/1996 | US5562088 Termination device for horizontal direct vent gas fireplaces or the like |
| 10/03/1996 | WO1996030699A1 Pebble bed furnace |
| 10/01/1996 | US5560756 Chimney smoke scrubber |
| 09/18/1996 | EP0732543A2 Gas burner |
| 09/17/1996 | US5556329 Chimney damper with locking mechanism |
| 08/29/1996 | DE19506989A1 Chimney pot with integral smoke fume cleaning |
| 08/29/1996 | CA2169877A1 Balanced flue outdoor water heater |
| 08/08/1996 | DE19503229A1 Chimney stack section reducer |
| 07/11/1996 | DE4447143A1 Fuel gas chimney with jacket flue section |
| 07/09/1996 | US5533495 Balanced flue outdoor water heater |
| 06/04/1996 | US5522327 Balanced pressure solid fuel heating unit |
| 03/07/1996 | WO1996007030A1 Fluid flow device |
| 01/09/1996 | CA2083780C Combination pressure and temperature limit control for a fuel-fired, forced draft heating appliance combustion product exhaust system |
| 12/13/1995 | CN2214840Y Dust-removing cover for chimney |
| 12/07/1995 | DE4419604A1 Chimney with rain collector for silencers, gas turbines and recuperators |
| 11/30/1995 | DE19519073A1 Exhaust gas and combustion air outlet and infeed pipeline connection |
| 11/15/1995 | CN1111746A Improved unit which can be assembled to forming smoke removing and ventilating apparatus of various location |
| 11/02/1995 | EP0679841A1 Assembly of air supply pipe and/or flue gas discharge pipe for connection to a furnace |
| 11/02/1995 | DE4437438A1 Combined wind-driven generator and room ventilator |
| 10/24/1995 | US5460162 Fireplace ventilation system |
| 09/19/1995 | US5451183 Furnace breathing filter |
| 09/12/1995 | CA2077126C High efficiency induced draft condensing furnace with horizontal plastic vent termination assembly |
| 08/22/1995 | US5443040 Pipestill heater and method for controlling combustion in pipestill heater |
| 07/26/1995 | EP0663991A1 Waste incineration apparatus and plant. |
| 07/12/1995 | EP0662587A2 Top for chimney or ventilating shaft |
| 07/05/1995 | EP0661497A2 Pipestill heater and method for controlling combustion in pipestill heater |
| 06/28/1995 | CN2202210Y Dust-removing draught fan for boilers |
| 06/28/1995 | CN1029090C Treatment of waste and rotary kiln therefor |
| 06/08/1995 | DE4340945A1 Combined installation of coal fired boiler, gas turbine, and installation components |
| 06/01/1995 | WO1995014887A1 Balanced device with separated channel for inlet and exit gas |
| 05/31/1995 | EP0655579A1 Burner appliance |
| 05/31/1995 | CN2199441Y Shaft jointed draught fan with cooling structure |
| 05/25/1995 | CA2136479A1 Discharge structure for closed gas appliances |
| 05/24/1995 | EP0654638A1 Discharge structure for closed gas appliances |
| 05/04/1995 | DE4336597A1 Smoke-extraction device |
| 03/16/1995 | DE4410437A1 Prefabricated chimney |
| 03/08/1995 | EP0641973A1 Device for gaseous fluid removal |
| 03/08/1995 | EP0641972A1 Static dynamic device for gaseous fluid removal |
| 03/07/1995 | US5395408 Chimney smoke scrubber |
| 02/08/1995 | EP0637719A2 Exterior wall connection box |
| 01/18/1995 | EP0634610A1 Combined burner air supply and combustion gas discharge system |
| 12/27/1994 | US5375651 Draft inducer blower motor mounting and cooling construction |
| 11/03/1994 | DE4314121A1 Chimney attachment for discharging, in particular, flue gases |
| 11/01/1994 | US5359945 Balanced pressure solid fuel heating unit |
| 10/04/1994 | US5352099 Exhaust fan for water heater |
| 09/28/1994 | EP0617233A1 Incinerator with auxiliary gas evacuation system |
| 09/21/1994 | CN2177883Y Double-driving air-inducing device |
| 08/17/1994 | EP0610526A1 Exterior wall connection box for the combustion air- and exhaust gas channels of an appliance with a burner |
| 08/17/1994 | CN2174640Y Combined dust exhausting and inducing draught apparatus for boiler |
| 07/12/1994 | US5328354 Incinerator with auxiliary gas evacuation system |
| 07/05/1994 | US5326313 Wind-actuated turbine ventilator |
| 05/11/1994 | EP0278980B1 Process and device for optimising energy output in heating installations, reducing the pollutants generated and cleaning flue gases |
| 04/28/1994 | WO1994009318A1 Waste incineration apparatus and plant |
| 03/15/1994 | US5293860 Standing pilot furnace with vented vestibule |
| 03/09/1994 | CN2158502Y Arrangement for easy passing flue to out side |
| 02/24/1994 | DE4325372A1 Ventilating head form as roof ventilator moved by wind - comprises pipe bend with wind plate, pipe extension narrowing over ventilation and small cylinder |
| 02/08/1994 | USRE34534 Direct power vented water heater |
| 02/01/1994 | US5282456 High efficiency fuel fired induced draft condensing furnace with horizontal plastic vent termination assembly |
| 01/20/1994 | DE4226890A1 Nozzle in chimney top - accelerates gases leaving chimney and acts as noise damper using perforated nozzle lining filled with sound-damping material |
| 01/19/1994 | EP0290488B1 Treatment of waste and a rotary kiln therefor |
| 12/16/1993 | DE4219113A1 Discharger for gas from fossil fuel burning heaters - has fresh air suction fan allocated to flue gas tube for fresh air admixture |
| 12/15/1993 | EP0562026A4 Balanced pressure solid fuel heating unit |