IPC Subgroup
H01T 13/24 having movable electrodes
Introduced: September 1968
Last revised: January 2006
Full Title
Sparking plugs > characterised by features of the electrodes or insulation > having movable electrodes
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: Spherically shaped electrodes, e.g. ball-shaped
1 direct subcode
Child Classifications
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- H01T 13/26 for adjusting spark gap otherwise than by bending of electrode