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Class Information
Number: 976/DIG.207
Name: Nuclear technology > Monitoring; testing; maintaining [g21c-17/00]

Sub-classes under this class:

Class Number Class Name Patents
976/DIG.209 Detection of leaks [g21c-17/00c] *** (by testing the coolant or the moderator dig. 224) 22
976/DIG.215 Devices or arrangements for monitoring coolant or moderator [g21c-17/02] 12
976/DIG.231 Devices or arrangements for monitoring or testing fuel or fuel elements (e.g., for burn-up, for contamination, for leak-tightness) not during reactor operation [g21c-17/06] *** (dig. 235, dig. 236 take precedence) (detection of leaking fuel elements during reactor operation dig. 224) 118
976/DIG.214 Inspection or maintenance of pipe-lines or tubes in nuclear installations [g21c-17/00f] 37
976/DIG.208 Mechanical simulators [g21c-17/00b] *** (electrical or magnetic simulators g06g-7/54) 6
976/DIG.243 Period meters [g21c-17/14] 5
976/DIG.210 Remote inspection of vessels (e.g., pressure vessels) [g21c-17/00d] 22
976/DIG.236 Structural combination of fuel element, control rod, reactor core, or moderator structure with sensitive instruments (e.g., for measuring temperature) [g21c-17/10] 33
976/DIG.235 Structural combination of reactor core or moderator structure with viewing means (e.g., with television camera, periscope, window) [g21c-17/08] 11

Patents under this class:
1 2 3

Patent Number Title Of Patent Date Issued
8416909 Nuclear fuel cell repair tool Apr. 9, 2013
7218068 Power source for re-circulation pump and method of controlling the same May. 15, 2007
5077685 Method and apparatus for supporting the operation under radioactive rays Dec. 31, 1991
5076998 Monitoring of low frequency pulse rate Dec. 31, 1991
5064605 Apparatus for determining the thermal history of equipment using solid state track recorders Nov. 12, 1991
5032978 Status tree monitoring and display system Jul. 16, 1991
5024801 Reactor core model update system Jun. 18, 1991
5015433 Neutron activated switch May. 14, 1991
5011650 Nuclear power generating station equipment qualification apparatus Apr. 30, 1991
5006301 Method and apparatus for control rod drop monitoring Apr. 9, 1991
4980118 Nuclear power generating station equipment qualification method and apparatus Dec. 25, 1990
4961898 Reactor internals and core support monitoring system Oct. 9, 1990
4957690 System and method for monitoring and control of safety-related components of a nuclear power plant Sep. 18, 1990
4950447 Snubber monitoring system for nuclear power plants Aug. 21, 1990
4920548 Source range neutron flux count rate system incorporating method and apparatus for eliminating noise from pulse signal Apr. 24, 1990
4908775 Cycle monitoring method and apparatus Mar. 13, 1990
4902469 Status tree monitoring and display system Feb. 20, 1990
4886635 Gripping tool for a device for the remote-controlled removal of samples from a container, in particular from a pressure vessel of a reactor Dec. 12, 1989
4876058 Nuclear power generating station equipment qualification method and apparatus Oct. 24, 1989
4864178 Ultrasonic probe for testing the material of slotted or hollow pieces of the material Sep. 5, 1989
4853175 Power plant interactive display Aug. 1, 1989
4842807 Support stand for top access reactor cavity dosimetry Jun. 27, 1989
4837936 Underwater measuring gage Jun. 13, 1989
4816208 Alarm management system Mar. 28, 1989
4815014 Machine assisted execution of process operating procedures Mar. 21, 1989
4801421 On-line monitoring and analysis of reactor vessel integrity Jan. 31, 1989
4773799 Apparatus for sampling a section of tube in a nuclear fuel assembly Sep. 27, 1988
4752869 Auxiliary reactor protection system Jun. 21, 1988
4742227 Mobile type inspection apparatus May. 3, 1988
4738737 Method of using a high temperature ultrasonic couplant material Apr. 19, 1988
4732728 Method of and apparatus for detecting neutrinos and antineutrinos with elastic scatterers Mar. 22, 1988
4720624 Non-uniform resistance heating tubes Jan. 19, 1988
4717530 Process and device for the remote underwater monitoring of a small-size component of a nuclear reactor Jan. 5, 1988
4711754 Method and apparatus for impacting a surface with a controlled impact energy Dec. 8, 1987
4704801 Device for checking the vertical alignment of the upper and lower internal equipment of a pressurized water nuclear reactor Nov. 10, 1987
4701297 Apparatus and method for removing thermocouples from nuclear reactor vessel Oct. 20, 1987
4699751 Neutron dosimeter Oct. 13, 1987
4694585 Device for measuring clearance around a pin for centering the upper internal equipment of a pressurized water nuclear Sep. 22, 1987
4694693 Check valve test method using truncated accumulator blowdown Sep. 22, 1987
4692300 Device for the underwater measurement of the hardness of a vertical wall of the partitioning of the core of a pressurized water nuclear reactor Sep. 8, 1987
4683104 Equipment for the inspection of fuel rods of nuclear reactors Jul. 28, 1987
4681729 Monitoring temperature within a vessel Jul. 21, 1987
4682296 Ultrasonic imaging Jul. 21, 1987
4678621 Method and means for monitoring the continuity of a fluid-filled network of conduits and valves Jul. 7, 1987
4678622 Transient monitor for nuclear reactor Jul. 7, 1987
4678627 Debris-retaining trap for a fuel assembly Jul. 7, 1987
4675146 Weld monitor and failure detector for nuclear reactor system Jun. 23, 1987
4671919 Reactor power level monitoring system using an alpha-beta tracker Jun. 9, 1987
4666655 Process and installation for detecting stray bodies in a nuclear reactor May. 19, 1987
4664880 Wire mesh debris trap for a fuel assembly May. 12, 1987

1 2 3

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