Quotables
"It is my heart-warmed and world-embracing Christmas hope and aspiration that all of us, the high, the low, the rich, the poor, the admired, the despised, the loved, the hated, the civilized, the savage (every man and brother of us all throughout the whole earth), may eventually be gathered together in a heaven of everlasting rest and peace and bliss, except the inventor of the telephone. "
Mark Twain ; Christmas greetings, 1890
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| Number | Title | Issue Date |
| 7835484 | Anti-fretting wear spacer grid with canoe-shaped spring The present invention relates to an anti-fretting wear spacer grid having a plurality of canoe-shaped springs formed thereon, wherein each of the canoe-shaped springs includes: a fuel rod-contacting part having a flat surface having a predetermined longitudinal leng... | 11/16/2010 |
| 7769125 | Spacer grid for nuclear reactor fuel assemblies A spacer grid used for placing and supporting fuel rods in nuclear reactor fuel assemblies is disclosed. The spacer grid of this invention has a plurality of inner strips intersecting each other to form a plurality of guide tube cells and a plurality of fuel rod cel... | 08/03/2010 |
| 7421056 | Fuel assembly for a boiling water reactor A spacer for a fuel element of a boiling water reactor contains cells that are formed by inner partitions, which are disposed in a crisscross manner, and by outer partitions, which surround the inner partitions in a frame-like manner. A guiding device is placed on t... | 09/02/2008 |
| 7349670 | Modular wireless test architecture and method A modular test chassis for use in testing wireless devices includes a backplane and a channel emulation module coupled to the backplane. The channel emulation module comprises circuitry for emulating the effects of a dynamic physical environment (including air, inte... | 03/25/2008 |
| 7267164 | Anti-vibration tube support A tube support device for a plurality of elongated members is disclosed. The support device includes an elongated longitudinally extending strip having a pair of opposing faces. The strip includes a plurality of engaging members extending from the pair of opposing f... | 09/11/2007 |
| 7149273 | Method of fabricating a nuclear reactor fuel assembly grid A method of fabricating a fuel assembly grid that includes providing a plurality of interconnected straps that form a lattice pattern, wherein the lattice pattern of the straps defines a plurality of cells, providing a sleeve that has a cylindrical portion and a fla... | 12/12/2006 |
| 7128130 | Anti-vibration tube support A method of reducing vibration in a tube bundle includes inserting at least one elongated longitudinally extending support strip within at least one tube lane, wherein each elongated longitudinally extending support strip having a pair of opposing faces and a plural... | 10/31/2006 |
| 7085340 | Nuclear reactor fuel assemblies A nuclear fuel assembly having a parallel array of elongated fuel elements supported between an upper and lower nozzle. Main support grids are substantially evenly spaced along the elongated dimension of the assembly to maintain the spacing between fuel elements. A ... | 08/01/2006 |
| 7032655 | Anti-vibration tube support A tube support device comprises an elongated strip inserted in a tube lane between the tubes of the tube bundle. Raised-tube-engaging zones are disposed in transverse rows across the strip at successive longitudinal locations along its length; these tube-engaging zo... | 04/25/2006 |
| 7028765 | Heat exchanger tube support A tube support device is presented. The present invention includes at least two first plates and at least two second plates each having a plurality of slots mutually arranged and aligned so as to allow four or more plates to interlock and form a grid of depth-wise p... | 04/18/2006 |
| 6997141 | Anti-vibration support for steam generator heat transfer tubes and method for making same A tube support structure for heat transfer tubes in a steam generator has a plurality of tube support bars which are installed between the heat transfer tubes. At least one of the support bars has a first metal layer and a second metal layer. The first metal layer i... | 02/14/2006 |
| 6914955 | Heat exchanger tube support structure A support plate for retaining tube array spacing within a heat exchanger tube and shell structure. The support plate having a plurality of individual tube receiving apertures formed therein. Each aperture has at least three inwardly protruding members and bights are... | 07/05/2005 |
| 6912264 | Fuel assembly A fuel element for a nuclear reactor has fuel rods with nuclear fuel guided through spacers. The spacers are equipped with devices that exert a swirling impulse upon a coolant flowing along the fuel rods. In order to present as little flow resistance as possible for... | 06/28/2005 |
| 6909766 | Production method for a nuclear fuel assembly support grid and a nuclear fuel assembly support grid produced by the same One object of the present invention is to provide a production method for a nuclear fuel assembly support grid that improves the corrosion resistance of welded parts without impairing the characteristics of the support grid so as to be able adequately withstand high... | 06/21/2005 |
| 6819733 | Fuel assembly and associated grid for nuclear reactor An improved grid for use in a fuel assembly of a nuclear reactor includes a plurality of straps that are interconnected with one another in a lattice fashion to define a plurality of cells, with the straps being configured to include a plurality of relatively more c... | 11/16/2004 |
| 6810101 | Heat exchanger tube support structure A support plate for retaining tube array spacing within a heat exchanger tube and shell structure. The support plate having a plurality of individual tube receiving aperture formed therein. Each apertures has at least three inwardly protruding members and bights are... | 10/26/2004 |
| 6744842 | Fuel assembly for a pressurized-water reactor A fuel assembly for a pressurized-water reactor includes fuel rods held in cells of spacers, control rod guide tubes, and a headpiece and a foot piece, by which it is fixed to upper and lower core grids, respectively. A spacer having a first part, which lies on a ra... | 06/01/2004 |
| 6744843 | Side-slotted nozzle type double sheet spacer grid for nuclear fuel assemblies A side-slotted nozzle type double sheet spacer grid for nuclear fuel assemblies is disclosed. The spacer grid includes intersecting inner strips and four perimeter strips. Each inner strip has unit strip parts, each fabricated by integrating two unit sheet parts tog... | 06/01/2004 |
| 6735268 | Fuel spacer/water rod capture apparatus and methods for boiling water nuclear reactors The spacer/water rod retention assembly includes a clip secured to the spacer having a slot perimetrically bounded both axially and laterally spaced portions of the clip. A resilient tab projects from one side portion into the slot. A water rod has a projecting tab ... | 05/11/2004 |
| 6728329 | Fuel assembly A fuel assembly having a plurality of fuel rods arranged in a square lattice array. The fuel rods include a plurality of short-length fuel rods each having a fuel active length shorter than that of each of remaining ones of the fuel rods. At least one water rod is a... | 04/27/2004 |
| 6721384 | Spacer grid with side welding support and flow mixing vane for nuclear reactor fuel assembly A spacer grid for nuclear fuel assemblies is disclosed. This spacer grid has a plurality of side weld supports, that is, main supports, upper sub-supports and lower sub-supports, on its interlaced inner straps, with two flow mixing vanes integrally extending upward ... | 04/13/2004 |
| 6714619 | Spacer grid with double deflected vanes for nuclear fuel assemblies A spacer grid for use in a nuclear fuel assembly has double-deflected vanes that guide an axial flow of coolant around fuel rods and thereby generate swirl flow. The vanes each have a double bend projecting upwardly from first inner straps and projecting toward one ... | 03/30/2004 |
| 6707872 | Spacer grid for nuclear reactor fuel assemblies with grid springs maintaining conformal contact with fuel rods and enlarged elastic range A spacer grid used for placing and supporting fuel rods in nuclear reactor fuel assemblies is disclosed. The spacer grid of this invention has a plurality of grid springs designed to have an optimal shape of their vertical support parts, thus reducing fretting wear ... | 03/16/2004 |
| 6650723 | Double strip mixing grid for nuclear reactor fuel assemblies A double strip mixing grid for nuclear reactor fuel assemblies is disclosed. This grid is fabricated by intersecting at right angles a plurality of double strips, each fabricated by welding two thin sheets together into a single structure with coolant cha... | 11/18/2003 |
| 6608881 | Duct-type spacer grid with swirl flow vane for nuclear fuel assembly A duct-type spacer grid for nuclear fuel assemblies is disclosed. In this spacer grid, a plurality of duct-shaped grid elements, individually having an octagonal cell, are closely arranged in parallel and are welded together, thus forming a matrix structu... | 08/19/2003 |
| 6606369 | Nuclear reactor with improved grid An improved grid for use in a fuel assembly of a nuclear reactor includes a plurality of straps connected in a lattice, with a plurality of mixing vanes being disposed on the straps and being arranged such that the hydraulic forces on the mixing vanes gen... | 08/12/2003 |
| 6600800 | Fuel element for a boiling water nuclear reactor In a boiling water fuel assembly, some of the fuel rods are shortened. It is necessary to establish a sufficiently high maximum power for transition to boiling. To optimize this power, spacers are at a constant distance at a bottom and are at a shorter di... | 07/29/2003 |
| 6542567 | Grid for nuclear fuel assembly and a strap for such a grid At regular intervals, the grid strap has formed therein notches for assembly with transverse straps. Between at least some pairs of notches, it has a rod-holding spring comprising two resilient strips cut out from the plane wall of the strap and integral ... | 04/01/2003 |
| 6526116 | Nuclear fuel assembly with hydraulically balanced mixing vanes A support grid for laterally maintaining the relative position of elongated fuel elements within a fuel assembly for use within a core of a nuclear reactor. The grid is formed in the shape of a lattice with the intersecting lattice members defining a plur... | 02/25/2003 |
| 6522710 | Fastened spacer for grid of a nuclear reactor with associated method A spacer for use with a protective grid of a fuel assembly of a nuclear reactor is a generally washer-shaped plate of material having an engagement surface and a retention surface opposite one another. The protective grid is formed of a plurality of strap... | 02/18/2003 |
| 6519309 | Pressurized water reactor fuel assembly spacer grid A spacer grid for PWR assemblies is characterized by curved flow channels between adjacent fuel rods and straight, essentially flat strips connecting opposite side plates of the spacer. The latter strips prevent bowing-out of the side plates during fuel a... | 02/11/2003 |
| 6498827 | Heat exchanger tube support structure A support plate for retaining tube array spacing within a heat exchanger tube and shell structure. The support plate having a plurality of individual tube receiving apertures formed therein. Each apertures has at least three inwardly protruding members an... | 12/24/2002 |
| 6473482 | Spacer with specially fastened springs for fuel assemblies of nuclear reactors A spacer for a fuel assembly of a nuclear reactor includes an elongated spring which is held in a mesh in such a way that there is structural freedom with respect to a selection of a shape of the spring and that little spring material is required. Two lat... | 10/29/2002 |
| 6434209 | Critical power enhancement system for a pressurized fuel channel type nuclear reactor using alignment of fuel bundle pairs A Critical Channel Power (CCP) enhancement system is provided for a pressurized fuel-channel-type water-cooled nuclear reactor of the type adapted to be refuelled on-line by the insertion and removal of fuel bundles onto and from of a plurality of said fu... | 08/13/2002 |
| 6421407 | Nuclear fuel spacer grid with dipper vanes A nuclear fuel spacer grid, fabricated by intersecting a plurality of zircaloy or inconel grid strips and used for placing and supporting a plurality of elongated fuel rods within a nuclear fuel assembly, is disclosed. In the spacer grid of this invention... | 07/16/2002 |
| 6415011 | Spacer and a fuel assembly for a nuclear boiling water reactor The invention concerns a spacer (14) for a nuclear boiling water reactor. The spacer (14) comprises a plurality of cells (16) for holding or allowing elongated elements (12) to pass through the cells. Between the cells (16) there are a plurality of flow c... | 07/02/2002 |
| 6400788 | Fuel assembly A fuel assembly, particularly, a fuel assembly including short-length fuel rods and fuel spacers, is used for a boiling water reactor, which is capable of sufficiently reducing the pressure loss of at least one of the fuel spacers positioned above the upp... | 06/04/2002 |
| 6393087 | Duct-type spacer grid with swirl flow vanes for nuclear fuel assemblies A duct-type spacer grid for nuclear fuel assemblies is disclosed. In this spacer grid, a plurality of duct-shaped grid elements, individually having an octagonal cell, are closely arranged in parallel and are welded together, thus forming a matrix structu... | 05/21/2002 |
| 6385271 | Nuclear fuel assembly The present invention relates to a fuel assembly for a light-water reactor with a substantially square cross section wherein the fuel assembly comprises a plurality of fuel rods (4). The fuel rods (4) extend between a bottom tie plate (5) and a top tie pl... | 05/07/2002 |
| 6332012 | Grid strap for a nuclear fuel assembly, and a grid including such straps A nuclear fuel assembly grid has a plurality of mutually interleaved straps forming an array of fuel rod receiving cells. Each strap is formed with regularly distributed slots for interleaving with other straps of the grid. The strap has dimples located b... | 12/18/2001 |
