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Class Information
Number: 976/DIG.238
Name: Nuclear technology > Monitoring; testing; maintaining [g21c-17/00] > Structural combination of fuel element, control rod, reactor core, or moderator structure with sensitive instruments (e.g., for measuring temperature) [g21c-17/10] > Measuring the reactor flux within the reactor (e.g., within its pressure vessel) [g21c-17/10d]

Patents under this class:
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Patent Number Title Of Patent Date Issued
4927593 Beta ray flux measuring device May. 22, 1990
4917853 Pipe for supporting and positioning measuring devices in the core of a nuclear reactor Apr. 17, 1990
4897239 Instrumentation column for the core of a pressurized water nuclear reactor Jan. 30, 1990
4888149 Wear-reduction-shield for thimbles Dec. 19, 1989
4885124 Removal of obstructions in thimbles of nuclear power reactors Dec. 5, 1989
4867941 Process for cleaning a guide tube for a means of measuring the neutron flux in a pressurized-water cooled nuclear reactor Sep. 19, 1989
4839135 Anti-vibration flux thimble Jun. 13, 1989
4832522 Adapter extension for plungers and the like May. 23, 1989
4822558 Thimble guide extender for a nuclear power plant Apr. 18, 1989
4801421 On-line monitoring and analysis of reactor vessel integrity Jan. 31, 1989
4790976 Device for installing dry PDD lances and for flushing out lance-housing tubes in boiling water reactors Dec. 13, 1988
4780267 In-core assembly configuration having a dual-wall pressure boundary for nuclear reactor Oct. 25, 1988
4778647 Vibration-damping extender for a thimble guide Oct. 18, 1988
4765943 Thermal neutron detectors and system using the same Aug. 23, 1988
4765944 Device for the transverse retention of a movable tubular conduit in a pressurized water nuclear reactor Aug. 23, 1988
4756867 Device for the remote measurement of the outside diameter of a cylindrical element projecting relative to the surface of a plate Jul. 12, 1988
4751039 Method of installing a sleeve within an instrumentation tube of a nuclear fuel assembly Jun. 14, 1988
4728479 High pressure seal fitting with built-in low pressure seal arrangement Mar. 1, 1988
4720369 Device for cleaning the guide tubes of the means of measuring neutron fluxes in a pressurized-water nuclear reactor Jan. 19, 1988
4717529 Thimble guide assembly Jan. 5, 1988
4716004 Thimble guide extender Dec. 29, 1987
4708844 Reactor monitoring assembly Nov. 24, 1987
4655994 Method for determining the operability of a source range detector Apr. 7, 1987
4634568 Fixed incore wide range neutron sensor Jan. 6, 1987
4623508 Wide range flux monitor assembly Nov. 18, 1986
4582673 Fission-chamber-compensated self-powered detector for in-core flux measurement and reactor control Apr. 15, 1986
4568514 Fission chamber detector system for monitoring neutron flux in a nuclear reactor over an extra wide range, with high sensitivity in a hostile environment Feb. 4, 1986
4555382 Method of protection of a pressurized-water nuclear reactor Nov. 26, 1985
4495144 Fission chamber detector system for monitoring neutron flux in a nuclear reactor over an extra wide range, with high sensitivity in a hostile environment Jan. 22, 1985
4493811 Preamplifier for a wide range neutron flux monitoring system Jan. 15, 1985
4333797 Reactor power control apparatus Jun. 8, 1982
4318776 Measuring lance for boiling-water nuclear reactors Mar. 9, 1982
4288291 Radiation detector for use in nuclear reactors Sep. 8, 1981
4268354 Nuclear reactor in core flux mapping system May. 19, 1981
4255234 Automatic flux mapping system Mar. 10, 1981
4253914 Feeding device Mar. 3, 1981
4239595 Data system for automatic flux mapping applications Dec. 16, 1980
4235670 Method and apparatus for measuring neutron flux Nov. 25, 1980
4186048 Neutron flux monitoring system Jan. 29, 1980
4157277 Device for measuring neutron flux in a nuclear reactor Jun. 5, 1979
4103161 Composite transducer Jul. 25, 1978
4097330 Instrumentation assembly for nuclear reactor Jun. 27, 1978
4090083 Nuclear reactor ex-core startup neutron detector May. 16, 1978
4079236 Method and apparatus for monitoring the axial power distribution within the core of a nuclear reactor, exterior of the reactor Mar. 14, 1978
4069097 Method and apparatus for monitoring flux deviations in a nuclear reactor Jan. 17, 1978
4059439 Pu-Zr alloy for high-temperature foil-type fuel Nov. 22, 1977
4044301 Modular ionization chamber of the boron-coating type Aug. 23, 1977
4039378 Pu-ZR Alloy high-temperature activation-measurement foil Aug. 2, 1977
4024017 Method and apparatus for measuring burn-up of nuclear fuel in a reactor May. 17, 1977
3998694 Nuclear reactor and production systems with digital controls Dec. 21, 1976

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