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Class Information
Number: 976/DIG.169
Name: Nuclear technology > Pressure vessels; containment vessels [g21c-13/00] *** (chemical or physical processes b01j-3/00; pressure vessels in general f16j-12/00) > Details (e.g., seals, supporting constructions, ventillating arrangements, tube joints with a vessel wall) [g21c-13/02] > Seals (e.g., for pressure vessels or containers [g21c-13/02d]
Description:










Sub-classes under this class:

Class Number Class Name Patents
976/DIG.170 For container apertures [g21c-13/02d2] 9


Patents under this class:

Patent Number Title Of Patent Date Issued
4904442 Permanent cavity seal ring for a nuclear reactor containment arrangement Feb. 27, 1990
4905260 Nuclear reactor containment arrangement with permanent cavity seal ring Feb. 27, 1990
4842804 Integral reactor cavity seal/shield Jun. 27, 1989
4842807 Support stand for top access reactor cavity dosimetry Jun. 27, 1989
4783310 Heat barrier for use in a nuclear reactor facility Nov. 8, 1988
4758402 Refueling seal arrangement for nuclear reactor vessel Jul. 19, 1988
4753768 Reactor cavity pool seal Jun. 28, 1988
4747993 Permanent seal ring for a nuclear reactor cavity May. 31, 1988
4687347 Axial joint arrangement with integrated seal Aug. 18, 1987
4655483 Boundary seal for vessel penetration Apr. 7, 1987
4634569 Device permitting reduction of thermosiphon effects in fast neutron nuclear reactors Jan. 6, 1987
4601872 Water sealing device for use in replacing control rod drive housing Jul. 22, 1986
4584163 Reactor cavity seal ring Apr. 22, 1986
4548783 Outlet plug for recirculation loop of nuclear reactor Oct. 22, 1985
4482076 Nozzle plug for submersible vessel Nov. 13, 1984
4470946 Removable pipeline plug Sep. 11, 1984
4394022 Mechanically expandable annular seal Jul. 19, 1983
4369893 Sealing arrangement with annular flexible disc Jan. 25, 1983
4363777 Closure element for limiting the convection currents in an annular space about a nuclear reactor component Dec. 14, 1982
4335883 Sealing device for a component vertically disposed within the primary vessel of a nuclear reactor Jun. 22, 1982
4324616 Detachable and leaktight device for closing an orifice of a nuclear reactor vessel Apr. 13, 1982
4268355 Paraseismic device for the handling hood of a nuclear reactor May. 19, 1981
4243484 Method and apparatus for use to exchange O-ring interposed between in-core housing and in-core flange in nuclear reactor Jan. 6, 1981
4214760 Seal for adjacent plates Jul. 29, 1980
4202086 Method of assembling the parts of a heat exchanger, and a heat exchanger thus assembled May. 13, 1980
4170517 Permanent seal ring for a nuclear reactor cavity Oct. 9, 1979
4142646 Device for the metallic sealing of an intermediate partition on a vessel Mar. 6, 1979
4080255 Horizontal baffle for nuclear reactors Mar. 21, 1978
4070221 Multi-segmented sealing ring Jan. 24, 1978
4062726 Nozzle seal Dec. 13, 1977
4055199 Nozzle seal Oct. 25, 1977
4043866 Liquid metal cooled fast breeder nuclear reactors Aug. 23, 1977
4035232 Closure system Jul. 12, 1977
4001079 Thermal baffle for fast-breeder reacton Jan. 4, 1977











 
 
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