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.

 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
P:110 F21V 1/00
Shades for light sources
P:120 F21V 3/00
Globes; Bowls; Cover glasses (with refracting properties F21V 5/00; with reflecting properties F21V 7/00)
P:80 F21V 5/00
Refractors for light sources
P:90 F21V 7/00
Reflectors for light sources
P:70 F21V 8/00
Use of light guides, e.g. fibre optic devices, in lighting devices or systems (light guides per se, structural details of arrangements with other optical elements G02B 6/00)  [4]
P:100 F21V 9/00
Light filters (coloured shades F21V 1/00); Selection of luminescent materials for light screens (luminescent materials per se C09K 11/00; electroluminescent light sources per se H05B 33/00)
P:130 F21V 11/00
Screens not covered by groups F21V 1/00, F21V 3/00, F21V 7/00 or F21V 9/00
P:50 F21V 13/00
Producing particular characteristics or distribution of the light emitted by means of a combination of elements specified in two or more of main groups F21V 1/00-F21V 11/00 (by means of a combination of two or more elements covered by a single one of main groups F21V 1/00-F21V 11/00, see the relevant group; changing the characteristics or distribution of the light emitted by adjustment of parts F21V 14/00)  [1,7]
P:60 F21V 14/00
Changing the characteristics or distribution of the light emitted by adjustment of parts (reflectors with provision for adjusting the curvature F21V 7/00; light filters with provision for variation of colour or intensity F21V 9/00; screens using iris-type diaphragms F21V 11/00; adjustable mountings for lighting devices F21V 21/14)  [7]
P:40 F21V 15/00
Protecting lighting devices from damage (cooling or heating arrangements F21V 29/00; gas-tight or water-tight arrangements F21V 31/00)
P:170 F21V 17/00
Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages (of light sources or light holders F21V 19/00; gas-tight or water-tight arrangements F21V 31/00)
P:140 F21V 19/00
Fastening of light sources or lamp holders (fastening electric light source solely by the coupling device H01R 33/00)
 F21V 19/02
·  with provision for adjustment, e.g. for focusing (changing the characteristics or distribution of the light emitted by adjustment of parts F21V 14/00)  [1,7]
 F21V 19/04
·  with provision for changing light source, e.g. turret
P:180 F21V 21/00
Supporting, suspending, or attaching arrangements for lighting devices (F21V 17/00, F21V 19/00 take precedence; arrangement of signalling or lighting devices, the mounting or supporting thereof or circuits therefor, for vehicles in general B60Q; stands for supporting apparatus or articles in general F16M 11/00); Hand grips  [1,7]
 F21V 21/002
·  making direct electrical contact, e.g. by piercing (F21V 21/34 takes precedence)  [7]
 F21V 21/005
·  for several lighting devices in an end-to-end arrangement, i.e. light tracks  [7]
 F21V 21/008
·  Suspending from a cable or suspension line  [7]
 F21V 21/02
·  Wall, ceiling, or floor bases; Fixing pendants or arms to the bases (F21V 21/08 takes precedence; bases for movable standing lamps F21V 21/06)
 F21V 21/06
·  Bases for movable standing lamps; Fixing standards to the bases (F21V 21/08 takes precedence)
 F21V 21/08
·  Devices for easy attachment to a desired place
 F21V 21/10
·  Pendants, arms, or standards; Fixing lighting devices to pendants, arms, or standards (adjustable mounting F21V 21/14; construction of posts not peculiar to use with lighting devices E04H 12/00)
 F21V 21/13
·  Spring-loaded poles fixed at both ends  [7]
 F21V 21/14
·  Adjustable mountings
 F21V 21/34
·  Supporting elements displaceable along a guiding element
 F21V 21/36
·  Hoisting or lowering devices, e.g. for maintenance (F21V 21/14 takes precedence)
 F21V 21/40
·  Hand grips  [7]
P:150 F21V 23/00
Arrangement of electric circuit elements in or on lighting devices (electric circuits per se H05B 39/00)
 F21V 23/02
·  the elements being transformers or impedances
 F21V 23/04
·  the elements being switches (safety devices F21V 25/00)
P:0 F21V 25/00
Safety devices structurally associated with lighting devices (gas-tight or water-tight arrangements F21V 31/00; in general F16P; protective circuit arrangements per se H02H 7/00)
P:160 F21V 27/00
Cable-stowing arrangements structurally associated with lighting devices, e.g. reels (storing lengths of cable in general B65H)
P:20 F21V 29/00
Cooling or heating arrangements (cooling of air-treatment systems with air-flow over lighting fixtures F24F 3/044; lighting fixtures combined with outlets for air-treatment systems F24F 13/06; cooling of projectors G03B 21/16; cooling arrangements structurally associated with electric lamps H01J 61/02, H01K 1/00)  [1,7]
P:30 F21V 31/00
Gas-tight or water-tight arrangements
P:10 F21V 33/00
Structural combinations of lighting devices with other articles, not otherwise provided for  [1,7]
P:200 F21V 35/00
Candle holders
P:190 F21V 36/00
Arrangements of mantles or other incandescent bodies on burners (attaching to lamp parts F21V 19/00)
P:210 F21V 37/00
Details of lighting devices employing combustion as light source, not otherwise provided for  [1,7]
P:220 F21V 99/00
Subject matter not provided for in other groups of this subclass  [8]