|
Match
|
Document |
Document Title |
|
|
4427893 |
Apparatus and method for storing spent fuel assemblies
Apparatus for storing spent fuel assemblies of a nuclear reactor including a fuel-assembly transport cask having a hollow chamber for receiving therein at least one fuel assembly and having a cover...
|
|
|
4427222 |
Device for the tight joining of two parts
The invention relates to a device for the tight joining of two parts comprising tightening means of the screw-nut type compressing a gasket between the two parts. A compression part and an elastic...
|
|
|
4414475 |
Shielding container for storing weak to medially active waste
Shielding container assembly for storing weak to medially active waste in a storage barrel, including a shielding container having a substantially square cross section surrounding the storage...
|
|
|
4410802 |
Storage depot for radioactive material
Vertical drilling of cylindrical holes in the soil, and the lining of such holes, provides storage vaults called caissons. A guarded depot is provided with a plurality of such caissons covered by...
|
|
|
4404165 |
Process for carrying away the decay heat of radioactive substances
In this process, the decay heat of radioactive substances is carried away by circulating liquid coolant. Some of the liquid coolant is vaporized by the decay heat. The circulation of liquid in the...
|
|
|
4399366 |
Separator assembly for use in spent nuclear fuel shipping cask
A separator assembly for use in a spent nuclear fuel shipping cask has a honeycomb-type wall structure defining parallel cavities for holding nuclear fuel assemblies. Tubes formed of an effective...
|
|
|
4390496 |
Gaging device
An in-basin measuring system for determining changes in the longitudinal profile of nuclear fuel channel members which have been subjected to radiation in the reactor core section while maintaining...
|
|
|
4389568 |
Method for monitoring irradiated nuclear fuel using Cerenkov radiation
A method is provided for monitoring irradiated nuclear fuel inventories located in a water-filled storage pond wherein the intensity of the Cerenkov radiation emitted from the water in the vicinity...
|
|
|
4388268 |
Transportation and/or storage containers for radioactive materials
Conveying and/or storage containers for radioactive materials which emit gamma and neutron radiation consist essentially of a container body having a shielding function for gamma radiation, cooling...
|
|
|
4384489 |
Method of monitoring stored nuclear fuel elements
To monitor a nuclear fuel element or fuel elements located in a store, e.g. a pond in a swimming pool reactor, the store is illuminated ultrasonically using one or more transducers transmitting...
|
|
|
4382060 |
Radioactive fuel cell storage rack
A radioactive fuel cell storage rack is comprised of structural elements including elements which are hollow and cruciform in section. Each leg of the cruciform structural element includes a...
|
|
|
4381844 |
Lid seal for nuclear waste containers
A folded gasket formed of a length of flexible fabric-like material is disclosed as being disposed between juxtaposed surfaces at the juncture of the lid periphery to a container mouth to adapt the...
|
|
|
4377509 |
Packaging for ocean disposal of low-level radioactive waste material
A packaging system for storage of containers of low-level radioactive waste consisting of a concrete shell structure that houses the containers and a dry filler material that surrounds them. Void...
|
|
|
4375104 |
Pool gateway seal
A device for sealing a gateway between interconnectable pools in a nuclear facility comprising a frame supporting a liquid impermeable sheet positioned in a U-shaped gateway between the pools. An...
|
|
|
4366114 |
Dry storage for spent fuel assemblies
Dry storage system for spent nuclear-reactor fuel assemblies including a building having an interior secured against external influence, devices disposed in the building for removing from shipping...
|
|
|
4366115 |
Storage rack for assemblages of nuclear fuel elements
Storage rack for assemblages of nuclear fuel elements of polygonal or circular cross-section comprised of a plurality of storage chambers in the form of a hollow stem having a cross-section adapted...
|
|
|
4366113 |
Installation for a nuclear power station with staggered swimming pools
In an installation for a nuclear power station comprising a "reactor building" with a first swimming pool for handling of fuel units and a fuel building with a second swimming pool for the...
|
|
|
4356146 |
Incoming and outgoing air conveyance for dry storage with self heating radioactive materials
There is described an incoming and outgoing air conveyance system for dry storage with self heating radioactive materials in which the incoming air openings and shafts and the outgoing air openings...
|
|
|
4356062 |
Rack for storing bundles of nuclear fuel elements
The rack has a base plate which is formed with a pattern of holes and tube sections which are located under the holes. Feet are threaded into the tube sections and can be adjusted through the tube...
|
|
|
4355000 |
Lightweight, removable gate seal
In a nuclear fuel reactor well, storage pool or the like, a lightweight, removable pneumatic action sealing means is disclosed for providing a leak-tight seal between the walls of said well and an...
|
|
|
4355001 |
Reactor unit and a nuclear installation which uses said reactor unit
A reactor unit and a nuclear installation which uses said reactor unit and method of fitting up such an installation. Said installation includes mainly a reactor unit (2) which constitutes a...
|
|
|
4353391 |
Radioactive materials shipping cask anticontamination enclosure
An anticontamination device for use in storing shipping casks for radioactive materials comprising (1) a seal plate assembly; (2) a double-layer plastic bag; and (3) a water management system or...
|
|
|
4348352 |
Rack for intermediate storage of nuclear reactor fuel element bundles
After their removal from the reactor, fuel element rods of nuclear reactors are stored in bundles in a water tank before they are transported away. The invention relates to a rack, to be installed...
|
|
|
4343416 |
Container for nuclear fuel powders
A critically safe container for the storage and rapid discharge of enriched nuclear fuel material in powder form is disclosed. The container has a hollow, slab-shaped container body that has one...
|
|
|
4342620 |
Box insert for storage of spent nuclear fuel assembly
A box insert for receiving nuclear fuel is formed from a plurality of vertically extending plates arranged as an open-ended polygonal container having a smaller cross-sectional area than the...
|
|
|
4339411 |
Shielding container for the transportation and/or for storage of spent fuel elements
Shielding containers are needed for the transportation and or storage of spent fuel elements from nuclear reactors, which containers permit ready adjustment to the transportation conditions in...
|
|
|
4336460 |
Spent fuel cask
A cask for containing spent nuclear fuel during transport. The cask has a pair of multiple element trunnions disposed on opposite sides of the cask adjacent the top thereof. The multiple elements...
|
|
|
4334875 |
Process for forming a sleeve by winding and a device for executing the method
A process and device forms a sleeve from a flat, rectangular blank by winding the blank around a mandrel after it has been clamped to the mandrel surface and where the clamp passes under a presser...
|
|
|
4331244 |
Modular nuclear fuel assembly rack
A modular nuclear fuel assembly rack constructed of an array of identical cells, each cell constructed of a plurality of identical flanged plates. The unique assembly of the plates into a rigid...
|
|
|
4330711 |
Container combination for the transportation and storage of radioactive waste especially nuclear reactor fuel elements
For the transportation and storage of irradiated nuclear fuel elements there are needed combinations of inner and outer containers wherein the inner container should be usable for the storage of...
|
|
|
4326918 |
Storage assembly for spent nuclear fuel
A technique for storing spent fuel rods from a nuclear reactor is disclosed herein. This technique utilizes a housing including a closed inner chamber for containing the fuel rods and a thermally...
|
|
|
4326130 |
Shielding container with neutron shielding for the transportation and/or storage of spent fuel elements
There is provided a shielding container for the transportation and/or storage of spent fuel elements having a neutron shield on the outer container surface wherein the neutron shield is made of a...
|
|
|
4320847 |
Container for receiving and storing spent fuel elements
For the storage of spent fuel elements there are needed containers consisting of can and cover which undergo a preliminary sealing in inserting the cover, produce a uniform weld gap, are not jammed...
|
|
|
4319960 |
Modular nuclear fuel assembly rack
A modular nuclear fuel assembly rack constructed of an array of identical cells, each cell constructed of a plurality of identical flanged plates. The unique assembly of the plates into a rigid...
|
|
|
4318492 |
Fuel assembly storage capsule for storing spent fuel assemblies
Fuel assembly storage capsule for storing spent fuel assemblies in water-filled fuel pits, the capsule being formed of a sleeve sealed at the bottom thereof, having an upper opening closable by a...
|
|
|
4317702 |
Rack for storing fuel assembly clusters in a water pit
The rack is constructed of rack elements having square fuel assembly cluster-receiving tubes which are fastened to bed plates at a small distance. These bed plates are so small that they can be...
|
|
|
4313793 |
Machine for removing in-core instrument assemblies from a nuclear reactor
A machine for smoothly and controllably winding or unwinding a stiff in-core-instrument tube onto and off of a reel during ythe refueling of a nuclear reactor. The machine includes a frame (33) and...
|
|
|
4310034 |
Joining apparatus between a transportation container and a horizontal wall of a discharge
Joining apparatus between a container equipped in its upper part with a plug and the wall of a discharge enclosure provided with a horizontal orifice in the lower part thereof and located above...
|
|
|
4307679 |
Submergible barge retrievable storage and permanent disposal system for radioactive waste
A submergible barge and process for submerging and storing radioactive waste material along a seabed. A submergible barge receives individual packages of radwaste within segregated cells. The cells...
|
|
|
4306397 |
Mounting means for a storage container for fuel assembly clusters
The mounting means for the storage containers consists of an upper strip of stainless steel, a lower strip of ordinary structural steel and connecting posts which are welded between the two strips....
|
|
|
4306936 |
Method of cooling a fuel assembly-transport container and cooling circuit for performing the method
Method of cooling a fuel assembly-transport container with a cooling circuit which includes the interior of the transport container and is traversible by a vaporizable coolant such as water, which...
|
|
|
4305786 |
Shutdown reactivity meter system for nuclear fuel storage cells
A system for determining whether a self-sustaining neutron chain reaction (i.e., criticality) may occur as each successive nuclear fuel element is added to a liquid-filled tank. This is...
|
|
|
4305787 |
Storage rack for spent radioactive fuel
A rack for storing spent radioactive fuel is disclosed in which a set of cells, consisting of self-supporting metal tubes arranged in a staggered fashion with respect to each other, and joined to...
|
|
|
4299659 |
Apparatus for storing self-heating radioactive materials
Self heating radioactive materials, especially irradiated fuel elements, are stored by using dry storage in which the stored material is arranged enclosed vertically in containers. A better cooling...
|
|
|
4295401 |
Apparatus for disposing of radioactive fuel channels
Irradiated tubular rectangular fuel channels from a nuclear reactor are temporarily stored under water. In order to dispose of these highly radioactive channels and to ship them to permanent burial...
|
|
|
4293773 |
Method for containing spent nuclear fuel rods in a protective container to facilitate disposal
Disclosed is a method for preventing the scattering of radioactive material in spent nuclear fuel rods into the environment. The method comprises placing one or more of the spent fuel rods within a...
|
|
|
4291536 |
Apparatus enabling the storage of radioactive wastes and the recovery of the extraneous heat emitted thereby, and a storage element for incorporation in such apparatus
A storage element for use in the recovery of heat originating from the cooling of radioactive wastes including a first element for the storage of radioactive waste having a first closed shell...
|
|
|
4292528 |
Cask for radioactive material and method for preventing release of neutrons from radioactive material
A cask for radioactive material, such as nuclear reactor fuel or spent nuclear reactor fuel, includes a plurality of associated walled internal compartments for containing such radioactive...
|
|
|
4290906 |
Apparatus for cutting channel box for fuel assembly and method therefor
Apparatus including two types of cutting means or roller cutters and shears for cutting a channel box for a fuel assembly for a nuclear reactor and method therefor. The roller cutters and shears...
|
|
|
4288997 |
Cooling system for shipping casks
Cooling system for containers for transporting heat-emitting parts from nuclear installations, including a closed loop connected to the container for carrying water and steam or water alone, the...
|