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Class Information
Number: 976/DIG.251
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] > Lifting devices or pulling devices adapted for cooperation with fuel elements or with control elements [g21c-19/10]
Description:










Sub-classes under this class:

Class Number Class Name Patents
976/DIG.252 With grasping or spreading coupling elements [g21c-19/10b] 37
976/DIG.254 With latching devices and ball couplings [g21c-19/10f] 5
976/DIG.253 With revolving coupling elements (e.g., socket coupling) [g21c-19/10d] 2


Patents under this class:

Patent Number Title Of Patent Date Issued
4919881 Reactor internals through-hole grapple Apr. 24, 1990
4909980 Electromagnetic apparatus for positioning objects located behind a conductive wall Mar. 20, 1990
4903281 System for fuel rod removal from a reactor module 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
4867940 Electromagnetic method for positioning objects located behind a conductive wall Sep. 19, 1989
4805951 Gripping mechanism Feb. 21, 1989
4797248 Gripping apparatus for a group of rods of nuclear fuel assembly Jan. 10, 1989
4772056 Static latching arrangement and method Sep. 20, 1988
4746485 Rotating shielded crane system May. 24, 1988
4734251 Multi-gripper handling apparatus with individual force limiter Mar. 29, 1988
4728217 Gripper apparatus and method Mar. 1, 1988
4701297 Apparatus and method for removing thermocouples from nuclear reactor vessel Oct. 20, 1987
4687624 Liquid metal cooled fast breeder reactor Aug. 18, 1987
4666050 Manipulator for a nuclear reactor May. 19, 1987
4666658 Refueling of nuclear reactors May. 19, 1987
4663114 Apparatus for handling nuclear fuel assemblies and assembly adapted to such an apparatus May. 5, 1987
4651400 Multiple fuel rod gripper Mar. 24, 1987
4647424 Fuel assembly unlatching and handling gripper Mar. 3, 1987
4644754 Process and apparatus for cooling a charge of products Feb. 24, 1987
4551299 Multiple fuel rod gripper Nov. 5, 1985
4539174 Fuel pin transfer tool Sep. 3, 1985
4482520 Fuel pin transfer tool Nov. 13, 1984
4460536 Lifting device for nuclear power plants Jul. 17, 1984
4448744 Method of loading and/or unloading a nuclear reactor, and support member, especially for the foregoing method May. 15, 1984
4427621 Jacking mechanism for upper internals structure of a liquid metal nuclear reactor Jan. 24, 1984
4426353 Device for the disengagement of a nuclear reactor fuel element from an articulated finger grapnel and method of using same Jan. 17, 1984
4330369 Thermally actuated linkage arrangement May. 18, 1982
4297776 Leaf spring puller for nuclear fuel rods Nov. 3, 1981
4292131 Coupling mechanism of control rod for nuclear reactor Sep. 29, 1981
4272321 Nuclear reactor internals and control rod handling device Jun. 9, 1981
4192558 Self-lubricating bearing Mar. 11, 1980
4192715 Fuel assembly handling system of nuclear reactor Mar. 11, 1980
4134789 Method for refuelling a nuclear reactor and device for carrying out said method Jan. 16, 1979
4121868 Cam actuated pivotal jaw gripping apparatus Oct. 24, 1978
4113558 Nuclear fuel handling grapple carriage with self-lubricating bearing Sep. 12, 1978
4030973 Gripping device, especially for use in manipulating control bars in a nuclear reactor Jun. 21, 1977
3990591 Multiple function nuclear handling apparatus Nov. 9, 1976
3950020 Gripping device Apr. 13, 1976
3947318 Liquid-metal-cooled reactor Mar. 30, 1976
3938845 Gripping device of a lifting device, especially in a core reactor for depositing and picking up of fuel elements and control rods Feb. 17, 1976











 
 
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