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Class Information
Number: 376/316
Name: Induced nuclear reactions: processes, systems, and elements > Fission reactor material (including reaction products) treatment > Impurity removal > By pressurized fluid (i.e., blowdown)
Description: Subject matter wherein the impurities are flushed from the surface of a reactor component by a fluid driven by a fluid pressure differential.










Patents under this class:
1 2 3

Patent Number Title Of Patent Date Issued
8333893 Filtration separation method for waste resin containing highly radioactive uranium powder and device thereof Dec. 18, 2012
8238510 Steam generator dual head sludge lance and process lancing system Aug. 7, 2012
7602861 Wireless receiver for removing direct current offset component Oct. 13, 2009
7162981 System for annulus tooling alignment with suction pickup in the stay dome on the secondary side of a steam generator Jan. 16, 2007
7042966 Method of estimating the signal-to-noise ratio in a telecommunications receiver and an application of the method to controlling a transmitter May. 9, 2006
6950489 Guide tube for an instrumentation lance extending into a pressure vessel, reactor pressure vessel, and a method for preventing the accumulation of particles outside the pressure vessel in a gu Sep. 27, 2005
6718002 Method and device for removing radioactive deposits Apr. 6, 2004
6639962 Preventive maintenance method and apparatus of a structural member in a reactor pressure vessel Oct. 28, 2003
6625248 Process for the treatment of radioactive graphite Sep. 23, 2003
6513462 Descaling device for steam generator Feb. 4, 2003
6430249 Polymer dispersants and methods of use in a nuclear steam generator Aug. 6, 2002
6345083 Preventive maintenance method and apparatus of a structural member in a reactor pressure vessel Feb. 5, 2002
6341151 Preventive maintenance method and apparatus of a structural member in a reactor pressure vessel Jan. 22, 2002
6240155 Preventive maintenance apparatus for structural members in a nuclear pressure vessel May. 29, 2001
6058153 Preventive maintenance apparatus for structural members in a nuclear pressure vessel May. 2, 2000
6049580 Apparatus for remote dismantling of irradiated structures Apr. 11, 2000
6018557 Methods and assemblies for cleaning a control rod guide in a nuclear reactor Jan. 25, 2000
5841826 Method of using a chemical solution to dislodge and dislocate scale, sludge and other deposits from nuclear steam generators Nov. 24, 1998
5764717 Chemical cleaning method for the removal of scale sludge and other deposits from nuclear steam generators Jun. 9, 1998
5742654 Method and apparatus for enhancing removal of corrosion products from a nuclear reactor piping system Apr. 21, 1998
5570969 Composite waterlance and cavity connection Nov. 5, 1996
5553106 Residual stress improving method for members in reactor pressure vessel Sep. 3, 1996
5483563 Cleaning process for enhancing the bond integrity of multi-layered zirconium and zirconium alloy tubing Jan. 9, 1996
5467791 Ultrasonic cleaning method and device therefor Nov. 21, 1995
5418824 In situ inlet mixer cleaning system May. 23, 1995
5413168 Cleaning method for heat exchangers May. 9, 1995
5406595 Device for sealing a lead-through Apr. 11, 1995
5388131 Method and device for machining the internal surface of a tubular component and in particular an adaptor fixed to the vessel head of a pressurized water nuclear reactor Feb. 7, 1995
5361286 Method for in situ cleaning of inlet mixers Nov. 1, 1994
5347557 Apparatus for decontaminating radioactively contaminated surfaces Sep. 13, 1994
5341406 Sliding lance guide flexible lance system Aug. 23, 1994
5305361 Method of and apparatus for water-jet peening Apr. 19, 1994
5267283 Nuclear reactor Nov. 30, 1993
5265129 Support plate inspection device Nov. 23, 1993
5259446 Pressure pulse cleaning for adsorption tower distributors Nov. 9, 1993
5257296 Steam generator chemical solvent mixing system and method Oct. 26, 1993
5227127 Filtered venting system for reactor containment vessel of nuclear power plant Jul. 13, 1993
5217677 Control rod drive assembly Jun. 8, 1993
5205174 Scavenger submersible visual and acoustical tank inspection system and method Apr. 27, 1993
5194217 Articulated sludge lance with a movable extension nozzle Mar. 16, 1993
H1115 Robot arm apparatus Dec. 1, 1992
5092280 Pressure pulse cleaning apparatus Mar. 3, 1992
5092355 Pressure pulse method for removing debris from nuclear fuel assemblies Mar. 3, 1992
5075073 Foreign object separator for a reactor cooling system Dec. 24, 1991
5019329 System and method for vertically flushing a steam generator during a shock wave cleaning operation May. 28, 1991
H920 Method of removing cesium from steam May. 7, 1991
5006304 Pressure pulse cleaning method Apr. 9, 1991
5002079 Pressure pulse method and system for removing debris from nuclear fuel assemblies Mar. 26, 1991
5000908 Pulsed high-pressure (PHP) drain-down of steam generating system Mar. 19, 1991
4980120 Articulated sludge lance Dec. 25, 1990

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