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Class Information
Number: 976/DIG.294
Name: Nuclear technology > Details of nuclear power plant [g21d-1/00] *** (control dig. 296) > Arrangements of auxiliary equipment [g21d-1/02]
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Patents under this class:
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Patent Number Title Of Patent Date Issued
5075071 Cleaning and excavating tool for control rod canopy seals Dec. 24, 1991
5061433 Process for the replacement of a heating rod of a pressurizer of a pressurized-water nuclear reactor Oct. 29, 1991
5009836 Method for temporary shielding of reactor vessel internals Apr. 23, 1991
4961899 Multiple-cable connecting device for a nuclear reactor Oct. 9, 1990
4950447 Snubber monitoring system for nuclear power plants Aug. 21, 1990
4932887 Method of making connections in liquids using pressurized gas Jun. 12, 1990
4925622 Treadable insulation system with lagging support May. 15, 1990
4921434 Apparatus for making connections in liquids using pressurized gas May. 1, 1990
4910823 Cleaning mechanism for penetration interfaces in nuclear pressure vessels Mar. 27, 1990
4890906 Rotary optical switch having make-before-break feature Jan. 2, 1990
4832305 Equipment support system May. 23, 1989
4815574 Frictionless damper Mar. 28, 1989
4815989 Apparatus for making connections in liquids Mar. 28, 1989
4811777 Device for at least partly closing a vertical opening in a building and its use as a mechanical anti-freeze shutter Mar. 14, 1989
4742227 Mobile type inspection apparatus May. 3, 1988
4716297 Method and apparatus for optically switching current Dec. 29, 1987
4713209 Drain recovery system for condensate feedwater system of nuclear power plant Dec. 15, 1987
4676946 Thermal insulating blanket Jun. 30, 1987
4668038 Safety grade pressurizer heater power supply connector assembly May. 26, 1987
4526005 Long-period thermal storage accumulators Jul. 2, 1985
4490836 Shut-off valve Dec. 25, 1984
4471618 Nuclear power plant and method for the operation of such a power plant Sep. 18, 1984
4448023 Pressure wave attenuating main steam line apparatus May. 15, 1984
4410486 Nuclear reactor with a liquid coolant Oct. 18, 1983
4399656 Long-period thermal storage accumulators Aug. 23, 1983
4374083 Nuclear reactor having a liquid coolant Feb. 15, 1983
4360496 Cooling system for auxiliary systems of a nuclear installation Nov. 23, 1982
4343682 Plant having feed water heating means for nuclear units during plant start up and method of operating the same Aug. 10, 1982
4339410 Control for liquid plant Jul. 13, 1982
4328944 Load supporting device May. 11, 1982
4297061 Steam generator shell parting method and apparatus Oct. 27, 1981
4294311 Method of and arrangement for the seasonal storage and use of hot water produced in particular by electrical power-generating thermal and nuclear stations Oct. 13, 1981
4290853 Protection of steam piping in a nuclear reactor Sep. 22, 1981
4289043 Protective device for an inertia wheel rotating Sep. 15, 1981
4282062 Procedure and equipment for injecting gas into liquids Aug. 4, 1981
4280871 Live steam shut-off device for pressurized water reactors Jul. 28, 1981
4259156 Device for coupling pipelines in reactor pressure vessels, preferably the pipelines of the feedwater manifold Mar. 31, 1981
4241814 Mechanical-hydraulic damper for a load subject to shocks and vibrations Dec. 30, 1980
4237938 Energy absorbing device for pipelines Dec. 9, 1980
4231395 Non-return valve Nov. 4, 1980
4216670 Hydraulic vibration brake particularly for use in nuclear power plants Aug. 12, 1980
4200172 Radiation shielded movable work station apparatus Apr. 29, 1980
4199857 Tube bundle removal method and apparatus Apr. 29, 1980
4174009 Long-period thermal storage accumulators Nov. 13, 1979
4159736 Method of and arrangement for the seasonal storage and use of hot water produced in particular by electrical power-generating thermal and nuclear stations Jul. 3, 1979
4155377 Hot fluid-conducting pipe assembly May. 22, 1979
4154270 Shock suppressor reservoir bleed and fill system and method May. 15, 1979
4145922 Thermal power measurement apparatus Mar. 27, 1979
4141381 Swing check valve Feb. 27, 1979
4123325 Containers for housing nuclear reactors Oct. 31, 1978

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