Emergency Protection Arrangements Structally Associated With The Reactor (e.g., Safety Valves Provided With Pressure Equalization Devices) [g21c-9/00] *** (emergency Cooling Arrangements Dig. 196) Patents (Class 976/DIG139)

Digests

Pressure suppression [g21c-9/00b] (Class 976/DIG140)

By rupture discs or diaphragms [G21C-9/00B2] (Class 976/DIG141)
By stream condensation or by thermal accumulation [G21C-9/00B4] (Class 976/DIG142)

Core catchers [g21c-9/00d] (Class 976/DIG143)

Against explosions (e.g., blast shields) [g21c-9/00f] (Class 976/DIG144)

Against na- or ka- reactions [g21c-9/00i] (Class 976/DIG145)

Means for effecting very rapid reduction of the reactivity factor under fault conditions (e.g., reactor fuse, control elements having arrangements activated in an emergency) [g21c-9/02] *** (control elements, per se, dig. 113+) (Class 976/DIG146)

By fast movement of a solid (e.g, pebbles) [G21C-9/02B] (Class 976/DIG147)
By an absorbant fluid [G21C-9/02D] (Class 976/DIG148)
Reactor fuses [G21C-9/02F] (Class 976/DIG149)
Rupture diaphragms [G21C-9/02H] (Class 976/DIG150)

Means for suppressing fires; earthquake protection [g21c-9/04] (Class 976/DIG151)

There are no patents to show for this class.