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Class Information
Number: 976/DIG.245
Name: Nuclear technology > 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] > Details of handling arrangements [g21c-19/02]

Sub-classes under this class:

Class Number Class Name Patents
976/DIG.255 Arrangements for exerting direct hydraulic or pneumatic force on fuel element or on control element [g21c-19/12] 2
976/DIG.251 Lifting devices or pulling devices adapted for cooperation with fuel elements or with control elements [g21c-19/10] 40
976/DIG.247 Magazines for holding fuel element or control elements [g21c-19/06] 19
976/DIG.246 Means for controlling flow of coolant over objects being handled; means for controlling flow of coolant through channel being serviced (e.g., for preventing "blow-out") [g21c-19/04] 1
976/DIG.250 Means for heating fuel elements before introduction into the core; means for heating or cooling fuel elements after removal from the core [g21c-19/08] 11

Patents under this class:

Patent Number Title Of Patent Date Issued
8660231 Storage rack arrangement for the storage of nuclear fuel elements Feb. 25, 2014
5106572 Centering and fixation device for a cluster guide flange of a core plate of a nuclear reactor Apr. 21, 1992
5070589 Process for servicing a jet pump hold down beam in a nuclear reactor Dec. 10, 1991
5057270 Instrumentation arrangement for a pressurized water nuclear reactor Oct. 15, 1991
5043132 Apparatus for transporting and inverting core frame parts of a nuclear reactor Aug. 27, 1991
5000908 Pulsed high-pressure (PHP) drain-down of steam generating system Mar. 19, 1991
4991280 Method for replacing bolts on core components in nuclear reactors Feb. 12, 1991
RE33373 Tooling apparatus for modifying nuclear reactors Oct. 9, 1990
4954311 Control rod housing alignment Sep. 4, 1990
4929413 Television alignment of mast assembly in refueling of nuclear reactor May. 29, 1990
4927595 Refueling of nuclear reactor May. 22, 1990
4919881 Reactor internals through-hole grapple Apr. 24, 1990
4893023 Radiation shielding apparatus Jan. 9, 1990
4851185 Radiation shielding method and apparatus Jul. 25, 1989
4832902 Refueling of nuclear reactor May. 23, 1989
4830814 Integrated head package for a nuclear reactor May. 16, 1989
4824633 Method and apparatus for controlling refuelling machine of reactor Apr. 25, 1989
4728484 Apparatus for handling control rod drive Mar. 1, 1988
4713212 Process for surveillance and control of operations of loading and unloading of the fuel of a nuclear reactor and apparatus applying this process Dec. 15, 1987
4696786 Process and device for adapting new upper internal equipment to the vessel of a pressurized water nuclear reactor Sep. 29, 1987
4643868 Support arrangement for core modules of nuclear reactors Feb. 17, 1987
4522780 Removal and replacement of fuel rods in nuclear fuel assembly Jun. 11, 1985
4511531 Transfer of nuclear reactor component assemblies Apr. 16, 1985
4465325 Device for handling a load Aug. 14, 1984
4448744 Method of loading and/or unloading a nuclear reactor, and support member, especially for the foregoing method May. 15, 1984
4427623 Automatic fuel transfer apparatus and method Jan. 24, 1984
4385028 System for controlling position and movement of manipulator device from absolute distance data standard May. 24, 1983
4330368 Cable handling system for use in a nuclear reactor May. 18, 1982
4328071 Device for guiding ducts which extend through a rotatable component May. 4, 1982
4289291 Retractable storage lug Sep. 15, 1981
4288290 Apparatus for exchanging control rod drive mechanism in a nuclear reactor Sep. 8, 1981
4268355 Paraseismic device for the handling hood of a nuclear reactor May. 19, 1981
4180435 Refuelling machine for nuclear reactor Dec. 25, 1979
4158599 Method of refueling reactor Jun. 19, 1979
4147588 Fast reactor recharging device Apr. 3, 1979
4142935 Nuclear reactor Mar. 6, 1979
4129476 Environment control system Dec. 12, 1978
4056435 Loading and unloading of a nuclear reactor core Nov. 1, 1977
4053356 Guide device Oct. 11, 1977
4007085 Nuclear reactor fuel elements Feb. 8, 1977
3997393 Device for protecting the containment vessel dome of a nuclear reactor Dec. 14, 1976
3990942 Removable auxiliary lid for handling the fuel elements of a nuclear reactor core Nov. 9, 1976

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