Remote inspection of vessels, e.g. pressure vessels [5]
17
/
007
•
•
Inspection of the outer surfaces of vessels [5]
17
/
01
•
•
Inspection of the inner surfaces of vessels [5]
17
/
013
•
•
Inspection vehicles [5]
17
/
017
•
Inspection or maintenance of pipe-lines or tubes in nuclear installations [5]
17
/
02
•
Devices or arrangements for monitoring coolant or moderator
17
/
022
•
•
for monitoring liquid coolants or moderators [5]
17
/
025
•
•
•
for monitoring liquid metal coolants [5]
17
/
028
•
•
for monitoring gaseous coolants [5]
17
/
032
•
•
Reactor-coolant flow measuring or monitoring [5]
17
/
035
•
•
Moderator- or coolant-level detecting devices [5]
17
/
038
•
•
Boiling detection in moderator or coolant [5]
17
/
04
•
•
Detecting burst slugs
17
/
06
•
Devices or arrangements for monitoring or testing fuel or fuel elements outside the reactor core, e.g. for burn-up, for contamination (G 21 C 17/08, G 21 C 17/10 take precedence; detecting leaking fuel elements during reactor operation G 21 C 17/04)
17
/
07
•
•
Leak testing [5]
17
/
08
•
Structural combination of reactor core or moderator structure with viewing means, e.g. with television camera, periscope, window
17
/
10
•
Structural combination of fuel element, control rod, reactor core, or moderator structure with sensitive instruments, e.g. for measuring radioactivity, strain
17
/
104
•
•
Measuring reactivity [5]
17
/
108
•
•
Measuring reactor flux [5]
17
/
112
•
•
Measuring temperature [5]
17
/
116
•
•
Passages or insulators, e.g. for electric cables [5]
17
/
12
•
•
Sensitive element forming part of control element
17
/
14
•
Period meters
19
/
00
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
/
02
•
Details of handling arrangements
19
/
04
•
•
Means for controlling flow of coolant over objects being handled; Means for controlling flow of coolant through channel being serviced
19
/
06
•
•
Means for supporting or storing fuel elements or control elements [4]
19
/
07
•
•
•
Storage racks; Storage pools [5]
19
/
08
•
•
Means for heating fuel elements before introduction into the core; Means for heating or cooling fuel elements after removal from the core
19
/
10
•
•
Lifting devices or pulling devices adapted for co-operation with fuel elements or with control elements (manipulators B 25 J)
19
/
105
•
•
•
with grasping or spreading coupling elements [5]
19
/
11
•
•
•
with revolving coupling elements, e.g. socket coupling [5]
19
/
115
•
•
•
with latching devices and ball couplings [5]
19
/
12
•
•
Arrangements for exerting direct hydraulic or pneumatic force on fuel element or on control element
19
/
14
•
characterised by their adaptation for use with horizontal channels in the reactor core
19
/
16
•
Articulated or telescopic chutes or tubes for connection to channels in the reactor core
19
/
18
•
Apparatus for bringing fuel elements to the reactor charge area, e.g. from a storage place
19
/
19
•
Reactor parts specifically adapted to facilitate handling, e.g. to facilitate charging or discharging of fuel elements [3]
19
/
20
•
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
/
22
•
•
Arrangements for obtaining access to the interior of a pressure vessel whilst the reactor is operating
19
/
24
•
•
•
by using an auxiliary vessel which is temporarily sealed to the pressure vessel
19
/
26
•
Arrangements for removing jammed or damaged fuel elements or control elements; Arrangements for moving broken parts thereof
19
/
28
•
Arrangements for introducing fluent material into the reactor core; Arrangements for removing fluent material from the reactor core (pumping coolant G 21 D)
19
/
30
•
•
with continuous purification of circulating fluent material, e.g. by extraction of fission products
19
/
303
•
•
•
specially adapted for gases (decontamination of gases G 21 F 9/02) [5]
19
/
307
•
•
•
specially adapted for liquids (decontamination of liquids G 21 F 9/04) [5]
19
/
31
•
•
•
•
for molten metals [5]
19
/
313
•
•
•
•
•
using cold traps [5]
19
/
317
•
•
•
Recombination devices for radiolytic dissociation products [5]
19
/
32
•
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 G 21 F 9/00)
19
/
33
•
Apparatus or processes for dismantling strings of spent fuel elements (G 21 C 19/34 takes precedence) [2]
19
/
34
•
Apparatus or processes for dismantling nuclear fuel, e.g. before reprocessing (shielded cells G 21 F 7/00) [5]
19
/
36
•
•
Mechanical means only
19
/
365
•
•
•
Removing cannings or casings from fuel [5]
19
/
37
•
•
•
•
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
/
38
•
•
Chemical means only
19
/
40
•
Arrangements for preventing occurrence of critical conditions, e.g. during storage
19
/
42
•
Reprocessing of irradiated fuel
19
/
44
•
•
of irradiated solid fuel
19
/
46
•
•
•
Aqueous processes
19
/
48
•
•
•
Non-aqueous processes
19
/
50
•
•
of irradiated fluid fuel
21
/
00
Apparatus or processes specially adapted to the manufacture of reactors or parts thereof (in general, section B, e.g. B 23)
21
/
02
•
Manufacture of fuel elements or breeder elements contained in non-active casings
21
/
04
•
•
by vibrational compaction or tamping
21
/
06
•
•
by swaging
21
/
08
•
•
by a slip-fit cladding process
21
/
10
•
•
by extrusion, drawing, or stretching
21
/
12
•
•
by hydrostatic or thermo-pneumatic canning
21
/
14
•
•
by plating in a fluid
21
/
16
•
•
by casting or dipping techniques
21
/
18
•
Manufacture of control elements covered by group G 21 C 7/00
23
/
00
Adaptations of reactors to facilitate experimentation or irradiation [3]
