FI (Note)/(Index) list

Descriptions for F23L and notes/indexes are displayed on this screen.

F23L SUPPLYING AIR OR NON-COMBUSTIBLE LIQUIDS OR GASES TO COMBUSTION APPARATUS IN GENERAL (firebridges with means for feeding air or steam F23M 3/04; baffles or shields with air supply passages F23M 9/04); 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

Subclass indexes

AIR SUPPLY

Passages for: primary air; secondary air

1/00; 9/00

Valves or dampers

construction

13/00

arrangements: before the fire; after the fire

3/00; 11/00

Blast-producing apparatus before the fire; heating of air for combustion

5/00; 15/00

SUPPLYING NON-COMBUSTIBLE LIQUIDS OR GASES, OTHER THAN AIR, TO THE FIRE

7/00

DRAUGHT-INDUCING

17/00

SUBJECT MATTER NOT PROVIDED FOR IN OTHER GROUPS OF THIS SUBCLASS

99/00