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Class Information
Number: 976/DIG.268
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] > Arrangements for introducing fluent material into the reactor core; arrangements for removing fluent material from the reactor core [g21c-19/28] *** (pumping coolant dig. 199+ and 294) > With continuous purification of circulating fluent material (e.g., by extraction of fission products, deterioration or corrosion products, impurities (e.g., by cold traps) [g21c-19/30] *** (purification of circulating fluid fuels dig. 281; separation in general b01d) > Specially adapted for liquids [g21c-19/30d] *** (decontamination of liquids dig. 379)
Description:










Sub-classes under this class:

Class Number Class Name Patents
976/DIG.269 For molten metals [g21c-19/30d2] 10


Patents under this class:

Patent Number Title Of Patent Date Issued
4900507 Nuclear fuel assembly debris filter bottom nozzle Feb. 13, 1990
4849161 Debris-resistant fuel assembly Jul. 18, 1989
4832905 Lower end fitting debris collector May. 23, 1989
4828791 Nuclear fuel assembly debris resistant bottom nozzle May. 9, 1989
4820477 Method and apparatus for providing a non-radioactive coolant for a nuclear reactor Apr. 11, 1989
4781884 Debris catching strainer grid Nov. 1, 1988
4764338 Method for operating boiling water-type atomic power plant Aug. 16, 1988
4756875 Apparatus for filtering water containing radioactive substances in nuclear power plants Jul. 12, 1988
4756876 Modular ultrafiltration device for the cooling liquid of a nuclear reactor Jul. 12, 1988
4732673 Device for the ultrafiltration of a pressurized high-temperature liquid Mar. 22, 1988
4684494 Ultrafiltration device in a pressurized water nuclear reactor Aug. 4, 1987
4684495 Fuel assembly bottom nozzle with integral debris trap Aug. 4, 1987
4684496 Debris trap for a pressurized water nuclear reactor Aug. 4, 1987
4678627 Debris-retaining trap for a fuel assembly Jul. 7, 1987
4675090 Process for extracting an acid, more especially boric acid, from a weakly ionized aqueous solution Jun. 23, 1987
4664880 Wire mesh debris trap for a fuel assembly May. 12, 1987
4594215 Augmented high gradient magnetic filter Jun. 10, 1986
4505824 Method and apparatus for purifying liquid using an electromagnetic filter Mar. 19, 1985
4411755 Laser-assisted isotope separation of tritium Oct. 25, 1983
4332031 Silica removal process and alumina composition used therein May. 25, 1982
4242200 Filters for purifying fluids containing ferromagnetic particles Dec. 30, 1980
4225390 Boron control system for a nuclear power plant Sep. 30, 1980
4123324 Apparatus for decontaminating a radioactively contaminated coolant Oct. 31, 1978
4096032 Modular in-core flow filter for a nuclear reactor Jun. 20, 1978
4087375 Method for treating radioactive waste water May. 2, 1978
4085061 Tritiated water treatment process Apr. 18, 1978
4043864 Nuclear power plant having a pressurized-water reactor Aug. 23, 1977
3993542 Process and apparatus for extraction of gases produced during operation of a fused-salt nuclear reactor Nov. 23, 1976
3975170 Hydrogen concentration control utilizing a hydrogen permeable membrane Aug. 17, 1976
3972772 Steam power plant for nuclear reactor stations having pressurized water reactors Aug. 3, 1976
3944466 Reducing concentration of gases in nuclear reactor Mar. 16, 1976
3938588 Deaerating feedwater heater Feb. 17, 1976
3932212 Apparatus and method for depressurizing, degassing and affording decay of the radioactivity of weakly radioactive condensates in nuclear power plants Jan. 13, 1976











 
 
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