IPC 7 English version G21C 19/00-G21C 23/00

IPC ⁷ English version

G21C 7/00 - G21C 17/14

G21C01900-G21C02300

SECTION G – PHYSICS

G 21

NUCLEAR PHYSICS; NUCLEAR ENGINEERING

G 21 C

NUCLEAR REACTORS (analogue computers therefor G06G 7/54; fusion reactors G21B; nuclear explosives G21J)

19/

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 [2]

19/

Details of handling arrangements

19/

Means for controlling flow of coolant over objects being handled; Means for controlling flow of coolant through channel being serviced

19/

Means for supporting or storing fuel elements or control elements [4]

19/

Storage racks; Storage pools [5]

19/

Means for heating fuel elements before introduction into the core; Means for heating or cooling fuel elements after removal from the core

19/

Lifting devices or pulling devices adapted for co-operation with fuel elements or with control elements (manipulators B25J)

19/

105

with grasping or spreading coupling elements [5]

19/

with revolving coupling elements, e.g. socket coupling [5]

19/

115

with latching devices and ball couplings [5]

19/

Arrangements for exerting direct hydraulic or pneumatic force on fuel element or on control element

19/

characterised by their adaptation for use with horizontal channels in the reactor core

19/

Articulated or telescopic chutes or tubes for connection to channels in the reactor core

19/

Apparatus for bringing fuel elements to the reactor charge area, e.g. from a storage place

19/

Reactor parts specifically adapted to facilitate handling, e.g. to facilitate charging or discharging of fuel elements [3]

19/

Arrangements for introducing objects into the pressure vessel; Arrangements for handling objects within the pressure vessel; Arrangements for removing objects from the pressure vessel

19/

Arrangements for obtaining access to the interior of a pressure vessel whilst the reactor is operating

19/

by using an auxiliary vessel which is temporarily sealed to the pressure vessel

19/

Arrangements for removing jammed or damaged fuel elements or control elements; Arrangements for moving broken parts thereof

19/

Arrangements for introducing fluent material into the reactor core; Arrangements for removing fluent material from the reactor core (pumping coolant G21D)

19/

with continuous purification of circulating fluent material, e.g. by extraction of fission products

19/

303

specially adapted for gases (decontamination of gases G21F 9/02) [5]

19/

307

specially adapted for liquids (decontamination of liquids G21F 9/04) [5]

19/

for molten metals [5]

19/

313

using cold traps [5]

19/

317

Recombination devices for radiolytic dissociation products [5]

19/

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 (disposal of waste material G21F 9/00)

19/

Apparatus or processes for dismantling strings of spent fuel elements (G21C 19/34 takes precedence) [2]

19/

Apparatus or processes for dismantling nuclear fuel, e.g. before reprocessing (shielded cells G21F 7/00) [5]

19/

Mechanical means only

19/

365

Removing cannings or casings from fuel [5]

19/

by separating into pieces both the canning or the casing and the fuel element, e.g. by cutting or shearing [5]

19/

375

Compacting devices, e.g. for fuel assemblies [5]

19/

Chemical means only

19/

Arrangements for preventing occurrence of critical conditions, e.g. during storage

19/

Reprocessing of irradiated fuel

19/

of irradiated solid fuel

19/

Aqueous processes

19/

Non-aqueous processes

19/

of irradiated fluid fuel

21/

Apparatus or processes specially adapted to the manufacture of reactors or parts thereof (in general, section B, e.g. B23)

21/

Manufacture of fuel elements or breeder elements contained in non-active casings

21/

by vibrational compaction or tamping

21/

by swaging

21/

by a slip-fit cladding process

21/

by extrusion, drawing, or stretching

21/

by hydrostatic or thermo-pneumatic canning

21/

by plating in a fluid

21/

by casting or dipping techniques

21/

Manufacture of control elements covered by group G21C 7/00

23/

Adaptations of reactors to facilitate experimentation or irradiation [3]

G21C 7/00 - G21C 17/14