| Patents for F23L 17 - Inducing draught; Tops for chimneys or ventilating shafts; Terminals for flues (1,376) |
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| 01/04/1983 | CA1138702A1 Device for airing out living quarters and improving chimney draft |
| 11/24/1982 | EP0065472A1 Multi-purpose incinerator for solid and liquid waste |
| 10/26/1982 | CA1134196A1 Chimney ventilating cap |
| 09/01/1982 | EP0058991A2 Furnace for burning solid fuels, particularly wood |
| 08/17/1982 | US4344370 Apparatus for discharging exhaust gas at high velocity |
| 08/11/1982 | EP0057347A2 Heating plant |
| 08/05/1982 | WO1982002586A1 A chimney turncap |
| 08/04/1982 | EP0057102A2 Flue terminal and method of promoting discharge of flue gases |
| 08/03/1982 | US4342258 Ventilator |
| 07/28/1982 | EP0056670A2 Assembly comprising a heat recovery device |
| 06/22/1982 | US4335648 Chimney cowls |
| 06/16/1982 | EP0053703A2 Blower motor cooling arrangement |
| 05/25/1982 | CA1124129A1 Automatic chimney cap |
| 04/20/1982 | US4325291 Chimney cap and securement |
| 04/06/1982 | CA1121215A1 Chimney cowls |
| 03/23/1982 | US4320697 Chimney ventilating cap |
| 02/16/1982 | CA1118266A1 Means for maintaining and controling a sub-atmospheric pressure at the discharge end of a vent of smoke stack |
| 01/13/1982 | EP0043504A1 Exterior wall casing for the combustion air and exhaust gas channels of an apparatus working with a burner system |
| 12/22/1981 | US4306491 Flue system for wood burning stoves |
| 11/24/1981 | US4301773 Hydrodynamic induced draft and water cooled flue gas hot water heater |
| 11/18/1981 | EP0040166A1 Industrial chimney with forced draught |
| 11/18/1981 | EP0039762A1 Process for heat recovery in oil or gas burners for industrial furnaces or the like, and burner for it |
| 11/10/1981 | CA1112063A1 Intake and discharge duct with external terminal for a burner-operated refrigerator |
| 09/23/1981 | EP0036364A1 Method of connecting a gas fired heater of the sealed and forced draught type to a conventional chimney |
| 09/08/1981 | CA1108397A1 Furnace with radiant burndown tube |
| 09/01/1981 | US4286975 Chimney heat exchanger |
| 09/01/1981 | US4286569 Intake and discharge duct with external terminal for a burner-operated refrigerator |
| 08/25/1981 | US4285325 Balancing air device for a heating unit |
| 07/28/1981 | US4280656 Chimney heat economizer |
| 06/16/1981 | US4273032 Ventilator apparatus |
| 04/21/1981 | US4262608 Method and apparatus for powered flue products exhaust and preheated combustion air supply |
| 04/14/1981 | CA1099168A1 Chimney damper arrangement |
| 03/03/1981 | US4253426 Reservoir type water heating device |
| 02/10/1981 | CA1095361A1 Baffle for gas heater vents |
| 01/07/1981 | EP0021281A1 Chimney terminal for balanced flue |
| 01/06/1981 | CA1092961A1 Indirect heat transfer apparatus |
| 12/02/1980 | US4236443 Chimney stack exhaust unit |
| 11/25/1980 | CA1090198A1 Plume elimination mechanism |
| 11/11/1980 | US4232595 Exhaust system for smokestack |
| 10/01/1980 | EP0016700A2 Device for evacuating combustion gases and for supplying fresh air for gas apparatuses of the gas-tight type |
| 07/29/1980 | US4214869 Furnace with radiant burndown tube |
| 06/24/1980 | CA1080040A1 Venting system for a gas-fired heating plant |
| 06/10/1980 | US4206693 Chimney cowls |
| 05/27/1980 | US4204463 Stack design |
| 04/29/1980 | US4200038 Chimney top assembly |
| 04/29/1980 | US4200035 Modular ventilating assembly |
| 02/12/1980 | US4187835 Indirect heat transfer apparatus |
| 01/22/1980 | US4184417 Plume elimination mechanism |
| 01/01/1980 | US4181119 Combined chimney cover and damper |
| 09/18/1979 | US4167909 Solid fuel burner |
| 05/22/1979 | US4155682 Propulsive device |
| 05/01/1979 | CA1053562A1 Air powered smokeless flare |
| 04/10/1979 | US4148103 Toilet of incinerating type |
| 04/03/1979 | US4147495 Waste gas dispersion stack |
| 03/06/1979 | US4142828 Openable rotor chamber construction for a vertical blower |
| 03/06/1979 | US4142457 Lost mold for the casting of a mouthpiece or nozzle for a chimney or smokestack |
| 01/23/1979 | US4135854 Control system for variable pitch axial fan for utility boiler |
| 01/16/1979 | CA1046333A1 Gas operated refrigerator having a sealed combustion system with separated fresh air and combustion gas conduits |
| 10/24/1978 | CA1040955A1 Horizontal vent air terminal for sealed combustion furnaces |
| 09/05/1978 | US4111004 Gas operated refrigerator having a sealed combustion system with separated fresh air and combustion gas conduits |
| 08/01/1978 | US4103600 Chimney cap |
| 07/11/1978 | US4099452 Smokestack-mounted airfoil |
| 06/20/1978 | US4095514 Air pollution control device |
| 06/06/1978 | US4092908 Fluidic seal |
| 04/25/1978 | US4086028 Turbine ventilators and method of manufacture |
| 03/28/1978 | US4080883 Airrester |
| 04/26/1977 | US4019834 Gas extraction apparatus for thermal installations |
| 04/12/1977 | US4016730 Refrigerators |
| 11/30/1976 | US3994280 Horizontal vent air terminal for sealed combustion furnaces |
| 09/07/1976 | US3978776 Chimney for exhaust gas having means for throttling a flow of exhaust gas |
| 08/17/1976 | US3974757 Down-draught deflector-draught interrupter |
| 07/27/1976 | US3971302 Chimney for exhaust gas having an adjustable means for throttling a flow of exhaust gas |
| 06/08/1976 | US3961587 Combustion equipment in which humid combustible excreta and disposed materials such as livestock excreta, paper sludge can be burnt spontaneously |
| 05/04/1976 | US3954385 Air powered smokeless flare |
| 03/23/1976 | US3945307 Chimney damper arrangement |
| 02/24/1976 | US3939781 Incinerator, incineration system and method |