Light sources using charges of combustible material, e.g. illuminating flash devices

Introduced: September 1968

Of 6 combined children, 0 exist in both systems.

1 codes are CPC-only extensions, 5 exist only in IPC.

IPC defines codes here since 1990.

Child Classifications

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F21K 5/02 +1 CPC CPC only CPC only
F21K 5/04 Plural charges, e.g. associated for sequential ignition since 1990 IPC only IPC only
F21K 5/06 Charge containment since 1990 −1 IPC IPC only IPC only
F21K 5/12 Charge ignition since 1990 −2 IPC IPC only IPC only
F21K 5/2 Charge feeding means since 1990 IPC only IPC only
F21K 5/22 Protective light shields since 1990 IPC only IPC only