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Class Information
Number: 976/DIG.50
Name: Nuclear technology > Reactor fuel elements and their assemblies; selection of substances for use as reactor fuel elements [g21c-3/00] > Fuel elements [g21c-3/02] *** (manufacturing dig. 283) > Constructional details [g21c-3/04] > Details of the construction within the casing [g21c-3/16]
Description:










Sub-classes under this class:

Class Number Class Name Patents
976/DIG.52 Internal spacers; other nonactive material within the casings (e.g., compensating for expansion of fuel rod; compensating for excess reactivity) [g21c-3/18] *** (interlayers dig. 53) 34
976/DIG.51 Means for storage or immobilization of gases in fuel elements [g21c-3/16b] 26
976/DIG.53 With coating on fuel or on inside of casing; with nonactive interlayer between casing and active material; with multiple casings or multiple active layers [g21c-3/20] 50


Patents under this class:

Patent Number Title Of Patent Date Issued
5061436 Gas cooled nuclear fuel element Oct. 29, 1991
5030414 Nuclear fuel rod Jul. 9, 1991
5002723 Nuclear fuel element Mar. 26, 1991
4994233 Fuel rod with axial regions of annular and standard fuel pellets Feb. 19, 1991
4944912 Fuel rod for a nuclear reactor fuel assembly Jul. 31, 1990
H722 Nuclear reactor fuel with radially varying enrichment Jan. 2, 1990
4853177 Void plug for annular fuel pellets Aug. 1, 1989
4822559 Nuclear fuel element Apr. 18, 1989
4778648 Zirconium cladded pressurized water reactor nuclear fuel element Oct. 18, 1988
4687629 Fuel rod with annular nuclear fuel pellets having same U-235 enrichment and different annulus sizes for graduated enrichment loading Aug. 18, 1987
4687627 Water displacer rod with hollow annular support pellets having sealed internal voids Aug. 18, 1987
4684504 Bow resistant structural member for fuel assemblies in non-control rod locations of a nuclear reactor core Aug. 4, 1987
4678924 Method of setting a stop means inside of a tubular element Jul. 7, 1987
4664882 Segmented fuel and moderator rod May. 12, 1987
4591479 Boiling water reactor fuel bundle May. 27, 1986
4557861 Nuclear fuel cartridge, and a method of preparing the cartridge for the extraction of nuclear material therefrom Dec. 10, 1985
4493814 High uranium utilization fuel rod for light water reactors Jan. 15, 1985
4477411 Nuclear reactor fuel elements Oct. 16, 1984
4470947 Double-clad nuclear fuel safety rod Sep. 11, 1984
4462958 LMFBR fuel assembly design for HCDA fuel dispersal Jul. 31, 1984
4393510 Reactor for production of U-233 Jul. 12, 1983
4381281 Reactor and process for production of novel nuclear fuel Apr. 26, 1983
4372911 Method for flattening the curve of evolution of heat in a fast reactor core Feb. 8, 1983
4362691 Process of operating a nuclear reactor to minimize production of U-232 Dec. 7, 1982
4292127 Nuclear fuel pins Sep. 29, 1981
4282064 Nuclear fuel element Aug. 4, 1981
4273616 High burnup nuclear fuel rod Jun. 16, 1981
4131511 Nuclear fuel element Dec. 26, 1978
4129477 Axially alignable nuclear fuel pellets Dec. 12, 1978
4123326 Nuclear fuel element and method for fabricating the nuclear fuel element Oct. 31, 1978
4106985 Fuel element for a nuclear reactor Aug. 15, 1978
4098644 Nuclear fuel element Jul. 4, 1978
4039375 Detection of fuel rod leakage Aug. 2, 1977
4007085 Nuclear reactor fuel elements Feb. 8, 1977
3988075 Nuclear fuel element Oct. 26, 1976
3975949 Leak detector probe for fuel rods Aug. 24, 1976
3976542 Fuel element having variable orifice Aug. 24, 1976
3969187 Detection of fuel rod leakage Jul. 13, 1976
3964967 Tag gas capsule with magnetic piercing device Jun. 22, 1976
3947320 Nickel container of highly-enriched uranium bodies and sodium Mar. 30, 1976











 
 
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