F
SECTION F — MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
 F01 - 
F04
Subsection index
MACHINES
positive displacement
rotary or oscillating piston
liquid and elastic fluid or elastic fluidF01C
liquid onlyF04C
reciprocating piston or other
liquid and elastic fluid or elastic fluidF01B
liquid onlyF04B
non-positive displacement
liquid and elastic fluid or elastic fluidF01D
liquid onlyF03B
ENGINES
positive displacement
rotary or oscillating piston
liquid and elastic fluid or elastic fluidF01C
liquid onlyF03C
reciprocating piston or other
liquid and elastic fluid or elastic fluidF01B
liquid onlyF03C
non-positive displacement
liquid and elastic fluid or elastic fluidF01D
liquid onlyF03B
PUMPS
positive displacement
rotary or oscillating pistonF04C
reciprocating piston or otherF04B
non-positive displacementF04D
  
LIGHTING; HEATING
 F23
COMBUSTION APPARATUS; COMBUSTION PROCESSES
 F23

Note(s)

In this class, the following terms or expressions are used with the meanings indicated:

  • "combustion" means the direct combination of oxygen gas, e.g. in air, and a burnable substance. Any other heat-producing combination of chemical substances, e.g. hydrogen peroxide and methane, iron oxide and aluminium, is covered by section C or by subclass F24J;
  • "combustion chamber" means a chamber in which fuel is burned to establish a self-supporting fire or flame and which surrounds that fire or flame;
  • "burner" means a device by which fluent fuel is passed to a combustion space where it burns to produce a self-supporting flame;
  • "air" means a mixture of gases containing free oxygen and able to promote or support combustion.

 F23Q
IGNITION (devices for igniting matches A24F; explosive or thermic compositions C06B; chemical igniters C06C; devices or installations peculiar to internal-combustion engines, except glowing plugs, F02P); EXTINGUISHING DEVICES
 F23Q
Subclass index
IGNITERS
Mechanical 1/00
Using electric sparks 3/00, 5/00
Incandescent 7/00
With pilot flame 9/00
By catalysis 11/00
Other 13/00
REMOTE IGNITION 21/00
TESTING 23/00
LIGHTERS CONTAINING FUEL 2/00, 3/00, 7/00
EXTINGUISHING DEVICES 25/00
P:80 F23Q 1/00
Mechanical igniters (lighters containing fuel F23Q 2/00; matches C06F)
P:70 F23Q 2/00
Lighters containing fuel, e.g. for cigarettes
P:40 F23Q 3/00
Igniters using electrically-produced sparks (sparking-plugs H01T 13/00)
P:30 F23Q 5/00
Make-and-break ignition, i.e. with spark generated between electrodes by breaking contact therebetween (specially adapted for internal-combustion engines F02P 15/00)
P:50 F23Q 7/00
Incandescent ignition; Igniters using electrically-produced heat, e.g. lighters for cigarettes (circuits therefor H01T 15/00); Electrically-heated glowing plugs
P:60 F23Q 9/00
Pilot flame igniters
P:10 F23Q 11/00
Arrangement of catalytic igniters (catalytic igniters per se C06C)
P:90 F23Q 13/00
Igniters not otherwise provided for
P:20 F23Q 21/00
Devices for effecting ignition from a remote location
P:0 F23Q 23/00
Testing of ignition installations (peculiar to internal-combustion engines F02P 17/00; testing of sparking plugs G01M 19/02)
P:100 F23Q 25/00
Extinguishing devices, e.g. for blowing-out or snuffing candle flames (for cigarettes A24F)