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.

 F21H
INCANDESCENT MANTLES; OTHER INCANDESCENT BODIES HEATED BY COMBUSTION (arrangements thereof F21V 36/00; burners F23D)

 F21K
LIGHT SOURCES NOT OTHERWISE PROVIDED FOR

 F21L
LIGHTING DEVICES OR SYSTEMS THEREOF, BEING PORTABLE OR SPECIALLY ADAPTED FOR TRANSPORTATION (burners F23D)  [1,7]
 F21L

Note(s)

  1. This subclass covers devices or systems designed or specially adapted to be carried, e.g. by hand, or otherwise transported from place to place, e.g. on wheeled supports, in order to provide illumination as and where required. [7]
  2. This subclass does not cover devices or systems intended for fixed installation, e.g. vehicle lighting, or for use essentially at a permanent location, which are covered by subclass F21S[7]
  3. Non-electric lighting devices are classified in groups F21L 17/00-F21L 26/00 only if a special adaptation related to the use of a non-electric light source is of interest. [2009.01]
 F21L
Subclass index
ELECTRIC DEVICES
Systems 2/00
with self-contained batteries or cells 4/00
with built-in generators 13/00
without self-contained power source 14/00
NON-ELECTRIC DEVICES
Torches, flares; lanterns 17/00; 19/00
Pocket-lamps; miners' hand-lamps 21/00; 23/00
Other portable lighting devices or systems thereof 26/00
COMBINATIONS OF ELECTRIC AND NON-ELECTRIC DEVICES 27/00

 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

 F21V
FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR  [1,7]
 F21V

Note(s)

  1. Groups F21V 1/00-F21V 14/00 cover details of those parts involved in light emission or distribution. Groups F21V 15/00-F21V 31/00 cover details of those parts not so involved. [2009.01]
  2. Details of non-electric lighting devices or systems are classified in groups F21V 35/00-F21V 37/00 only if a special adaptation related to the use of a non-electric light source is of interest.  [2009.01]
 F21V
Subclass index
DETAILS OF PARTS INVOLVED IN LIGHT EMISSION OR DISTRIBUTION
Shades; globes; refractors; reflectors 1/00; 3/00; 5/00; 7/00
Light guides 8/00
Light filters 9/00
Other screens 11/00
Combinations of elements 13/00
Changing characteristics or distribution of the light 14/00
DETAILS OF PARTS NOT INVOLVED IN LIGHT EMISSION OR DISTRIBUTION
Fastening 17/00; 19/00
Arrangements for supporting or suspending 21/00
Arrangements of electric circuit elements 23/00
Cable stowing 27/00
Protection; safety; cooling; tightness 15/00; 25/00; 29/00; 31/00
Combinations with other articles 33/00
Candle holders 35/00
Arrangements of mantles or burners 36/00
Details of combustion lighting 37/00
SUBJECT MATTER NOT PROVIDED FOR IN OTHER GROUPS OF THIS SUBCLASS 99/00