Emergency protection arrangements structurally associated with the reactor (emergency cooling arrangements G21C15/18)

Introduced: September 1968

Title

Titles differ between systems:

IPC: Emergency protection arrangements structurally associated with the reactor

CPC: Emergency protection arrangements structurally associated with the reactor (emergency cooling arrangements G21C15/18)

Full titles differ between systems:

IPC:

Emergency protection arrangements structurally associated with the reactor

CPC:

Emergency protection arrangements structurally associated with the reactor (emergency cooling arrangements G21C15/18)

Of 6 combined children, 4 exist in both systems.

2 codes are CPC-only extensions.

1 shared codes have differing titles between IPC and CPC.

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G21C 9/001 CPC only CPC only
G21C 9/002 CPC only CPC only
G21C 9/004 Pressure suppression since 1990 IPC+CPC Available in IPC and CPC
G21C 9/016 Core catchers since 1990 IPC+CPC Available in IPC and CPC
G21C 9/02 Means for effecting very rapid reduction of the reactivity factor under fault conditions, e.g. reactor fuse; (control elements per se G21C7/00) +2 CPC IPC+CPC Available in IPC and CPC
G21C 9/04 Means for suppressing fires IPC+CPC Available in IPC and CPC

Class G21,2013–2023, worldwide · Source: EPO PATSTAT

Class G21,2013–2023, worldwide · Source: EPO PATSTAT