IPC Subgroup
H01T 13/4 structurally combined with other devices
Introduced: September 1968
Last revised: January 2006
Full Title
Sparking plugs > structurally combined with other devices
Classification Context
- Section:
- ELECTRICITY
- Class:
- ELECTRIC ELEMENTS
- Subclass:
- SPARK GAPS; OVERVOLTAGE ARRESTERS USING SPARK GAPS; SPARKING PLUGS; CORONA DEVICES; GENERATING IONS TO BE INTRODUCED INTO NON-ENCLOSED GASES
Scope Notes
Limiting references: Sparking plugs structurally associated with fuel injectors Structurally combined with other parts of internal-combustion engines
3 direct subcodes
Child Classifications
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- H01T 13/41 with interference suppressing or shielding means
- H01T 13/42 with magnetic spark generators
- H01T 13/44 with transformers, e.g. for high-frequency ignition