F21V 29/70 characterised by passive heat-dissipating elements, e.g. heat-sinks
Introduced: January 2015
Full Title
Full titles differ between systems:
Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems > Cooling arrangements > characterised by passive heat-dissipating elements, e.g. heat-sinks
Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems (lighting fixtures combined with outlets for air-treatment systems F24F13/078) > Cooling arrangements (air-treatment systems dissipating or using the heat of lighting fixtures F24F3/056) > characterised by passive heat-dissipating elements, e.g. heat-sinks
IPC and CPC are identically structured here. All 5 subcodes exist in both systems.
IPC defines codes here since 2015.
Child Classifications
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- F21V 29/71 using a combination of separate elements interconnected by heat-conducting means, e.g. with heat pipes or thermally conductive bars between separate heat-sink elements since 2015 +2 CPC IPC+CPC Available in IPC and CPC
- F21V 29/73 the elements being adjustable with respect to each other, e.g. hinged since 2015 IPC+CPC Available in IPC and CPC
- F21V 29/83 the elements having apertures, ducts or channels, e.g. heat radiation holes since 2015 IPC+CPC Available in IPC and CPC