US PATENT SUBCLASS 976 / DIG 150
.~.~ Rupture diaphragms [G21C-9/02H]


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976 /   HD   NUCLEAR TECHNOLOGY

DIG 139  DD  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) {6}
DIG 146  DD  .~ 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+) {4}
DIG 150.~.~ Rupture diaphragms [G21C-9/02H]