IPC Main Group
H01T 13/00 Sparking plugs
Introduced: September 1968
Last revised: January 2006
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
Related Keywords
sparking PLUGS
10 direct subcodes
Child Classifications
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- H01T 13/02 Details
- H01T 13/2 characterised by features of the electrodes or insulation
- H01T 13/4 structurally combined with other devices
- H01T 13/46 having two or more spark gaps
- H01T 13/48 having means for rendering sparks visible
- H01T 13/5 having means for ionisation of gap
- H01T 13/52 characterised by a discharge along a surface
- H01T 13/54 having electrodes arranged in a partly-enclosed ignition chamber
- H01T 13/56 characterised by having component parts which are easily assembled or disassembled
- H01T 13/58 Testing