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Class Information
Number: 976/DIG.283
Name: Nuclear technology > Apparatus or processes specially adapted to the manufacture of reactors or parts thereof [g21c-21/00] *** (in general section b, e.g., b23) > Manufacture of fuel elements or breeder elements contained in nonactive casings [g21c-21/02]
Description:










Sub-classes under this class:

Class Number Class Name Patents
976/DIG.286 By a slip-fit cladding process; by crimping the jacket around the fuel [g21c-21/08] 8
976/DIG.290 By casting or dipping techniques [g21c-21/16] 0
976/DIG.287 By extrusion, drawing, or stretching; by rolling (e.g., "picture frame" technique) [g21c-21/10] 2
976/DIG.288 By hydrostatic or thermo-pneumatic cannings (in general by pressing without lenthening, e.g., explosive coating) [g21c-21/12] 3
976/DIG.289 By plating the fuel in a fluid [g21c-21/14] 0
976/DIG.285 By rotatable swaging of the jacket around the fuel [g21c-21/06] 0
976/DIG.284 By vibrational compaction or tamping of fuel in the jacket [g21c-21/04] 4
976/DIG.291 Manufacture of control elements covered by dig. 113+ [g21c-21/18] 12


Patents under this class:
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Patent Number Title Of Patent Date Issued
8576977 Method for designing a fuel assembly optimized as a function of the stresses in use in light-water nuclear reactors, and resulting fuel assembly Nov. 5, 2013
5620536 Manufacture of zirconium cladding tube with internal liner Apr. 15, 1997
5069865 Method of forming a gripper cavity in a fuel rod end plug Dec. 3, 1991
5043133 Automated nuclear fuel rod pattern loading system Aug. 27, 1991
4980119 Multizone automated nuclear fuel rod loading system Dec. 25, 1990
4960559 Capture row storage tray for holding collated rows of nuclear fuel pellets Oct. 2, 1990
4942014 Nuclear fuel pin fabrication Jul. 17, 1990
4897858 Nuclear fuel pellet collating system and method Jan. 30, 1990
4895694 Apparatus for aligning nuclear fuel pellets Jan. 23, 1990
4894848 Automated nuclear fuel rod pattern loading system Jan. 16, 1990
4880597 Alloy coated fuel cladding Nov. 14, 1989
4849156 Nuclear fuel pin fabrication Jul. 18, 1989
4842808 Nuclear fuel pellet collating system Jun. 27, 1989
4824634 Element with burnable poison coating Apr. 25, 1989
4804077 Tube end processing system Feb. 14, 1989
4762665 Stack forming apparatus Aug. 9, 1988
4754866 Apparatus for controlling the conveyance of articles Jul. 5, 1988
4748798 Apparatus for automatically loading nuclear fuel pellets Jun. 7, 1988
4687605 Manufacturing automation system for nuclear fuel rod production Aug. 18, 1987
4679377 Apparatus for applying an end plug to an end of a fuel rod tube Jul. 14, 1987
4672791 Apparatus for applying an end plug to an end of a fuel rod tube Jun. 16, 1987
4668444 Process for the production of isotrophic spherical fuel or absorber elements for high temperature reactors May. 26, 1987
4666639 Process for the production of spherical fuel elements May. 19, 1987
4662051 Apparatus for applying an end plug to an end of a fuel rod tube May. 5, 1987
4612159 Nuclear fuel element and process for fabricating the same Sep. 16, 1986
4548347 Automated fuel pin loading system Oct. 22, 1985
4500488 Encapsulated fuel unit and method of forming same Feb. 19, 1985
4292788 Nuclear fuel rod loading apparatus Oct. 6, 1981
4271101 Process for the production of spherical-shaped fuel elements for high temperature reactors Jun. 2, 1981
4235066 Nuclear fuel rod loading apparatus Nov. 25, 1980
4202849 Method for making nuclear fuel element May. 13, 1980
4181008 Method of assuring nuclear fuel rod pressurization during manufacture Jan. 1, 1980
4167959 Apparatus for producing plutonium fuel rods for nuclear power plants Sep. 18, 1979
4158601 Nuclear fuel pellet loading apparatus Jun. 19, 1979
4140738 Process for the production of block fuel elements for high temperature reactors Feb. 20, 1979
4093682 Process for the production of block-shaped fuel elements for high temperature reactors Jun. 6, 1978
4092218 Fuel element for high temperature reactors May. 30, 1978
4092384 Block fuel element for gas-cooled high temperature reactors May. 30, 1978
4076775 Block fuel elements for high temperature power reactors Feb. 28, 1978
4073834 Method of making nuclear fuel elements Feb. 14, 1978
4071587 Method of making ZrH fuel element Jan. 31, 1978
4057514 Process for the production of graphite molded articles of high isotropy and high heat conductivity Nov. 8, 1977
4056584 Method of making a graphite fuel element having carbonaceous fuel bodies Nov. 1, 1977
4045526 Process for the preparation of graphite-clad nuclear fuel rods Aug. 30, 1977
4038135 Plate type nuclear fuel element and a method of fabrication of said element Jul. 26, 1977
4028446 Method and device for the fabrication of nuclear fuel compacts Jun. 7, 1977
4024209 Method for making nuclear fuel rods May. 17, 1977
4013760 Process for the production of isotropic pyrolytic carbon particles Mar. 22, 1977
3996319 Process for the production of pressed block fuel elements of high power for gas cooled high temperature reactor Dec. 7, 1976
3988397 Pressed block fuel elements for gas cooled high temperature power reactors and processes for their production Oct. 26, 1976

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