US PATENT SUBCLASS 976 / DIG 244
ARRANGEMENTS FOR TREATING, FOR HANDLING, OR FOR FACILITATING THE HANDLING OF, FUEL OR OTHER MATERIALS WHICH ARE USED WITHIN THE REACTOR (e.g., within its pressure vessel) [G21C-19/00]


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976 /   HD   NUCLEAR TECHNOLOGY

DIG 244ARRANGEMENTS FOR TREATING, FOR HANDLING, OR FOR FACILITATING THE HANDLING OF, FUEL OR OTHER MATERIALS WHICH ARE USED WITHIN THE REACTOR (e.g., within its pressure vessel) [G21C-19/00] {11}
DIG 245  DD  .~> Details of handling arrangements [G21C-19/02] {5}
DIG 256  DD  .~> Characterized by their adaptation for use with horizontal channels in the reactor core [G21C-19/14]
DIG 257  DD  .~> Articulated or telescopic chutes or tubes for the connection to channels in the reactor core [G21C-19/16]
DIG 258  DD  .~> Apparatus for bringing fuel elements to the reactor charge area (e.g., from a storage place) [G21C-19/18]
DIG 259  DD  .~> Arrangements for introducing object into the pressure vessel; Arrangements for handling objects within the pressure vessel; Arrangements for removing objects from the pressure vessel [G21C-19/20] {3}
DIG 264  DD  .~> Arrangements for removing jammed or damaged fuel elements or control elements; Arrangements for moving broken parts thereof [G21C-19/26]
DIG 265  DD  .~> Arrangements for introducing fluent material into the reactor core; Arrangements for removing fluent material from the reactor core [G21C-19/28] *** (pumping coolant DIG. 199+ and 294) {1}
DIG 272  DD  .~> Apparatus for removing radioactive objects or materials from the reactor discharge area (e.g., to a storage place); Apparatus for handling radioactive objects or materials within a storage place or removing them therefrom [G21C-19/32] *** (disposal of waste material DIG. 375+)
DIG 273  DD  .~> Apparatus or processes for removing canning or casings from fuel; Separation of fuel and jacket material; also fuel elements, perforation (e.g., for sampling); Separation of fuel elements and fuel element-jackets in pieces; removal of end closures [G21C-19/34] *** (shielded cells DIG. 355+) {2}
DIG 276  DD  .~> Arrangements for preventing occurence of critical conditions (e.g., during storage) [G21C-19/40]
DIG 277  DD  .~> Reprocessing of irradiated fuel [G21C-19/42] {2}