DIFF Subgroup
F02P 3/04 Layout of circuits
Introduced: September 1968
Full Title
Full titles differ between systems:
IPC:
Other electric spark ignition installations characterised by the type of ignition power generation storage > having inductive energy storage, e.g. arrangements of induction coils > Layout of circuits
CPC:
Other installations > having inductive energy storage, e.g. arrangements of induction coils > Layout of circuits
Of 4 combined children, 3 exist in both systems.
1 codes are CPC-only extensions.
3 shared codes have differing titles between IPC and CPC.
IPC defines codes here since 1985.
Child Classifications
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- F02P 3/045 for control of the dwell or anti dwell time since 1985 +1 CPC IPC+CPC Available in IPC and CPC
- F02P 3/05 for control of the magnitude of the current in the ignition coil (during starting F02P15/12) since 1985 +1 CPC IPC+CPC Available in IPC and CPC
- F02P 3/055 with protective means to prevent damage to the circuit, or the ignition coil since 1985 +1 CPC IPC+CPC Available in IPC and CPC