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
 F21
LIGHTING (electric aspects or elements, see section H, e.g. electric light sources H01J, H01K, H05B)
 F21

Note(s)

Attention is drawn to Note III of Section H, and in particular that subclass H05B covers electrical aspects of the same technical subjects that are covered by class F21.

 F21S
NON-PORTABLE LIGHTING DEVICES OR SYSTEMS THEREOF (burners F23D)  [1,7]
 F21S

Note(s)

  1. This subclass covers devices or systems intended for fixed installation, e.g. vehicle lighting, or for use at a permanent location, e.g. free-standing floor- or table-lamps. [7]
  2. This subclass does not cover devices or systems specially adapted for transportation, which are covered by subclass F21L[7]
  3. Non-electric lighting devices or systems are classified in groups F21S 11/00-F21S 15/00 only if a special adaptation related to the use of a non-electric light source is of interest. [2009.01]
 F21S
Subclass index
ELECTRIC DEVICES
Systems 2/00
String or strip of light sources 4/00
Free-standing 6/00
Fixed installation 8/00
Built-in power supply 9/00
Producing varying lighting effects 10/00
NON-ELECTRIC DEVICES
Using daylight 11/00
Light source: Point-like or of unspecified shape 13/00
Other devices 15/00
COMBINATIONS OF ELECTRIC AND NON-ELECTRIC DEVICES 19/00
P:60 F21S 2/00
Systems of lighting devices, not provided for in main groups F21S 4/00-F21S 10/00 or F21S 19/00, e.g. of modular construction  [7]
P:20 F21S 4/00
Lighting devices or systems using a string or strip of light sources  [7]
P:40 F21S 6/00
Lighting devices intended to be free-standing (F21S 9/00, F21S 10/00 take precedence)  [7]
P:50 F21S 8/00
Lighting devices intended for fixed installation (F21S 9/00, F21S 10/00 take precedence; using a string or strip of light sources F21S 4/00)  [7]
 F21S 8/02
·  of recess-mounted type, e.g. downlighters (F21S 8/10 takes precedence)  [7]
 F21S 8/04
·  intended only for mounting on a ceiling or like overhead structure (F21S 8/02 takes precedence)  [7]
 F21S 8/08
·  with a standard  [7]
 F21S 8/10
·  specially adapted for vehicles (arrangement of signalling or lighting devices, the mounting or supporting thereof or circuits therefor, for vehicles in general B60Q)  [7]
P:30 F21S 9/00
Lighting devices with a built-in power supply; Systems employing lighting devices with a built-in power supply
P:10 F21S 10/00
Lighting devices or systems producing a varying lighting effect  [7]
P:70 F21S 11/00
Non-electric lighting devices or systems using daylight (windows or the like E06B)
P:80 F21S 13/00
Non-electric lighting devices or systems employing a point-like light source (candle holders F21V 35/00); Non-electric lighting devices or systems employing a light source of unspecified shape
P:90 F21S 15/00
Non-electric lighting devices or systems employing light sources not covered by main groups F21S 11/00F21S 13/00 or F21S 19/00
P:0 F21S 19/00
Lighting devices or systems employing combinations of electric and non-electric light sources; Replacing or exchanging electric light sources with non-electric light sources or vice versa