IPC Subgroup
F23L 17/02 Tops for chimneys or ventilating shafts; Terminals for flues
Introduced: September 1968
Last revised: January 2006
Full Title
Inducing draught; Tops for chimneys or ventilating shafts; Terminals for flues > Tops for chimneys or ventilating shafts; Terminals for flues
Classification Context
- Section:
- MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- Class:
- COMBUSTION APPARATUS; COMBUSTION PROCESSES
- Subclass:
- SUPPLYING AIR OR NON-COMBUSTIBLE LIQUIDS OR GASES TO COMBUSTION APPARATUS IN GENERAL; VALVES OR DAMPERS SPECIALLY ADAPTED FOR CONTROLLING AIR SUPPLY OR DRAUGHT IN COMBUSTION APPARATUS; INDUCING DRAUGHT IN COMBUSTION APPARATUS; TOPS FOR CHIMNEYS OR VENTILATING SHAFTS; TERMINALS FOR FLUES
6 direct subcodes
Child Classifications
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- F23L 17/04 Balanced-flue arrangements, i.e. devices which combine air inlet to combustion unit with smoke outlet
- F23L 17/06 branched; T-headed
- F23L 17/08 with coaxial cones or louvres
- F23L 17/1 wherein the top moves as a whole
- F23L 17/12 Devices for fastening the top or terminal to chimney, shaft, or flue
- F23L 17/14 Draining devices