ClassID:

200174

G21C7/20 - CPC Classification

Classification description:

Control of nuclear reaction by application of neutron-absorbing material, i.e. material with absorption cross-section very much in excess of reflection cross-section by displacement of solid control elements, e.g. control rods Disposition of shock-absorbing devices ; Braking arrangements

Recent Application in this class:
#1
20250069763
2025-02-27

FUEL ASSEMBLY FOR A NUCLEAR POWER PLANT, METHOD FOR ACTIVATING A MATERIAL TO BE ACTIVATED AND GRIPPER

#2
20230162875
2023-05-25

CONTROL ROD DAMPING SYSTEM

#3
20220115153
2022-04-14

Sheet based, in-bundle reactivity control device for storage of spent nuclear fuel

#4
20210398695
2021-12-23

Control rod damping system

#5
20210366623
2021-11-25

Nuclear reactor fuel assembly

#6
20200043617
2020-02-06

Method of installing an external dashpot tube around a control rod guide tube in a nuclear fuel assembly

#7
20180197640
2018-07-12

Fuel assembly with an external dashpot disposed around a guide tube portion

#8
20180190393
2018-07-05

Control rod damping system

#9
20160365160
2016-12-15

Anti-seismic apparatus for control element drive mechanisms

#10
20160307652
2016-10-20

DEVICE FOR HANDLING AN ABSORBENT CONTROL ROD OF A NUCLEAR REACTOR

#11
20160254065
2016-09-01

Control rod/control rod drive mechanism couplings

#12
20160196884
2016-07-07

Reactivity control method and telescoped control rod for pebble-bed high-temperature gas-cooled reactor

#13
20160189808
2016-06-30

Automatic hydropneumatic actuation device

#14
20160093407
2016-03-31

Pressurized water reactor fuel assembly

#15
20130272464
2013-10-17

Control rod assembly impact limiter

#16
20100098205
2010-04-22

Modular reactor head area assembly

#17
20090252281
2009-10-08

Tube-in-tube threaded dashpot end plug

#18
20080137798
2008-06-12

Tube-in-tube threaded dashpot end plug

#19
20070177711
2007-08-02

Fuel assembly and thimble screw of the same

#20
20070030941
2007-02-08

Control rod drive for a nuclear reactor and method for moving a control rod into a reactor core of a nuclear reactor

#21
20060165208
2006-07-27

Method for designing a nuclear fuel assembly with damping guide tube

#22
20050157835
2005-07-21

Method for designing the spider spring of a control cluster of a nuclear fuel assembly, corresponding system, computer program and product