Quotables
"I watched his countenance closely, to see if he was not deranged ... and I was assured by other senators after he left the room that they had no confidence in it."
U.S. Senator Smith of Indiana ; After seeing Samuel Morse demonstrate the telegraph.
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| Number | Title | Issue Date |
| 8170174 | Simplified jet pump riser brace clamp An embodiment of the present invention takes the form of an apparatus or system that may reduce the level of vibration experienced by an inlet riser or other similar object within a reactor pressure vessel. An embodiment of the present invention may eliminate the ne... | 05/01/2012 |
| 7764760 | Apparatus and method for measuring rotation during jet pump tensioning Systems and method for tensioning jet pump beam bolts in a nuclear reactor are disclosed. The nuclear reactor may include at least one jet pump with each jet pump having a jet pump beam and a jet pump beam bolt. The system may include an actuating apparatus and a te... | 07/27/2010 |
| 7627074 | Vertical spring wedge A vertical spring wedge restores a tight fitup against an adjacent structure, such as between an inlet mixer and an adjacent restrainer bracket in a boiling water nuclear reactor jet pump. The vertical spring wedge includes a U-shaped bracket including a pair of gui... | 12/01/2009 |
| 7596200 | Method and apparatus for repairing a jet pump riser brace to reactor vessel pad attachment in a nuclear reactor A clamp apparatus is provided which is designed to structurally replace a weld that attaches a riser brace assembly to a reactor pressure vessel wall, and a method for repairing the riser brace assembly. The riser brace assembly is designed to support a jet pump in ... | 09/29/2009 |
| 7272204 | Method and apparatus for clamping a riser brace assembly in nuclear reactor An apparatus and method are provided which are designed to structurally replace welds that attach a riser brace assembly to a jet pump riser pipe. The riser brace assembly may include an upper clamp assembly, a lower clamp assembly, and a plurality of mechanical fas... | 09/18/2007 |
| 7245688 | Cooling system This invention relates to a nuclear reactor plant which includes a nuclear heat source (12), and a cooling system (10). The cooling system (10) includes at least two cooling circuits (26), each of which includes a plurality of coolant cha... | 07/17/2007 |
| 7136449 | Nuclear reactor plant The invention provides a cooling system which includes at least one and preferably a plurality of coolant chambers arranged around a heat source, typically a nuclear reactor. A coolant inlet pipe enters the or each coolant chamber at a high level and extends downwar... | 11/14/2006 |
| 7104133 | Torsional vibration measuring instrument A torsional vibration measuring instrument has a plurality of reflecting means (6, 7) arranged with stipulated intervals along surface of a rotator (5) of which torsional vibration is to be measured; a pulse light irradiating means (1, 2) for ir... | 09/12/2006 |
| 7023949 | Jet pump assembly repair method A BWR jet pump assembly has a wedge slidably mounted on a jet pump that is movable under the force of gravity to seat between a bracket and the jet pump in order to horizontally support the jet pump against vibrations. The wedge or the bracket is repaired in situ by... | 04/04/2006 |
| 6876715 | Measurement system of torsion vibration for reactor internal pump Object of this invention is to provide an axial torsional vibration measurement device of the reactor internal pump capable of measuring the axial torsional vibration easily. The vibration detector 2 that detects vibration in the radial direction, and the sou... | 04/05/2005 |
| 6865243 | Method of detecting cracks in jet pump beams of a nuclear reactor A method of inspecting a jet pump beam in a nuclear reactor is provided. The reactor includes at least one jet pump assembly with each jet pump assembly including at least one jet pump beam. Each jet pump beam includes a beam bolt opening, a first arm, a second arm,... | 03/08/2005 |
| 6788756 | Jet pump set screw wedge A piping support wedge apparatus for a jet pump in a nuclear reactor is provided. In an exemplary embodiment, the wedge apparatus includes a first tapered wedge segment having a first end portion and a second end portion and a second tapered wedge segment having a f... | 09/07/2004 |
| 6751281 | Measurement system of torsion vibration for reactor internal pump Object of this invention is to provide an axial torsional vibration measurement device of the reactor internal pump capable of measuring the axial torsional vibration easily. The vibration detector 2 that detects vibration in the radial direction, and the sou... | 06/15/2004 |
| 6654437 | Method of repairing a labyrinth seal of a diffuser in a primary pump of a nuclear power station The invention relates to a method of repairing the labyrinth seal of a diffuser in a primary pump, the diffuser being of the type comprising a peripheral skirt and a circular end wall having an orifice provided with the labyrinth seal. The method consists... | 11/25/2003 |
| 6647083 | Method and apparatus for stiffening a riser brace in nuclear reactor A vibration mitigation clamp apparatus is provided, which is designed to stiffen a riser brace assembly in a nuclear reactor so as to increase the natural vibration frequency of the riser brace assembly. In an embodiment, the vibration mitigation clamp ap... | 11/11/2003 |
| 6633623 | Apparatus and methods for protecting a jet pump nozzle assembly and inlet-mixer A jet pump for a nuclear reactor includes a riser and an inlet mixer having a set of nozzles and a mixing section for receiving coolant flow from the nozzles and suction flow from an annular space between the reactor vessel and the shroud core. To minimiz... | 10/14/2003 |
| 6587535 | Jet pump slip joint labyrinth seal method Methods for cutting a labyrinth seal in a nuclear reactor jet pump assembly are described. In one embodiment, the method includes removing an irradiated jet pump inlet mixer from the jet pump assembly, positioning the jet pump inlet mixer underwater, and ... | 07/01/2003 |
| 6549601 | Mounting method for core internals An old core shroud (11) and an old jet pump (16) received in a reactor pressure vessel (1) are cut and carried out. A module of core internals having a new core shroud (N11), a new jet pump (N16) and a new baffle plate (N29) integrated is carried into the... | 04/15/2003 |
| 6504888 | Apparatus and methods of flow measurement for a boiling water reactor internal pump A reactor pressure vessel (RPV) for a nuclear reactor that permits measurement of the flow through each reactor internal pump (RIP) is described. The reactor pressure vessel also includes at least one reactor internal pump that includes an impeller and a ... | 01/07/2003 |
| 6490331 | Jet pump spring wedge A remotely installable piping support device includes a pair of mating tapered wedge segments extending from lever arms connected with a spiral wound spring. The spring is machined integrally with the left lever arm and has a projecting center square driv... | 12/03/2002 |
| 6463114 | Jack screw gap replacement device A jacking device includes first, second, and third members (51, 52, 53), and a jacking screw (55). The first and second members (51, 52) have sloping side portions (57). The third member (53) has a plurality of sloped side portions (57) and a threaded ope... | 10/08/2002 |
| 6438192 | Jet pump slip joint seal A seal apparatus for a jet pump slip joint in a boiling water nuclear reactor pressure vessel, in an exemplary embodiment, includes a split seal ring and a segmented diaphragm spring engaging the split seal ring at an inner circumference of the diaphragm ... | 08/20/2002 |
| 6435839 | Jet pump sensing line clamp assembly and methods A clamp assembly for a jet pump sensing line adjacent a jet pump within a nuclear reactor pressure vessel. The jet pump sensing line includes a support block. The clamp assembly includes a clamp body, a clamp member coupled to the clamp body, and a slide ... | 08/20/2002 |
| 6434208 | Jet pump beam lock A jet pump beam bolt locking assembly includes a locking sleeve having a plurality of ratchet teeth extending around the periphery of a base portion, and a lock plate having a beam bolt opening, and an integral beam spring arm having a plurality of ratche... | 08/13/2002 |
| 6264203 | Methods and apparatus for repairing a cracked jet pump riser in a boiling water reactor utilizing a spacer camp A method for repairing cracked jet pump riser assemblies in a boiling water reactor utilizes a spacer clamp and a seal collar. The spacer clamp is secured to the riser assembly to limit horizontal displacement of the riser assembly, and the seal collar is... | 07/24/2001 |
| 6233301 | Jet pump sensing line T-bolt clamp electrode discharge machining tool An electrode discharge machining (EDM) apparatus for machining slots in a jet pump diffuser in a nuclear reactor pressure vessel is described. The apparatus is configured to machine a plurality of slots in the diffuser at positions behind the diffuser sen... | 05/15/2001 |
| 6201605 | Optical detecting apparatus and coordinate inputting apparatus using the detecting apparatus An optical detecting apparatus designed to reduce the time taken to stabilize the operation after a moment at which a power supply for the apparatus is turned on, as well as to limit the power consumption in a standby state. Three operating modes: a norma... | 03/13/2001 |
| 6108391 | Apparatus for performing jet pump riser pipe repairs Apparatus for supporting the lower elbow assembly of a jet pump in a reactor pressure vessel (RPV) of a nuclear reactor are described. The clamp apparatus includes a lower clamp element and an upper clamp element. The upper and lower elements are configur... | 08/22/2000 |
| 6091791 | Shroud attachment for a boiling water reactor A shroud attachment assembly which provides both structural support for the shroud and a seal between the shroud and shroud support is described. In one specific embodiment, the shroud attachment assembly includes a shroud flange formed integral with the ... | 07/18/2000 |
| 6052425 | Jet pump auxiliary wedge An auxiliary wedge apparatus configured to couple to the restrainer bracket of a jet pump assembly is described. In one embodiment, the auxiliary wedge apparatus includes a support block configured to couple to the restrainer bracket, and a wedge configur... | 04/18/2000 |
| 5978433 | Jet pump wedge locking support apparatus A wedge locking support apparatus that applies a downward preload force to a jet pump inlet mixer gravity wedge and is remotely installable without disassembly of the jet pumps is described. The downward force supplied by the wedge locking support apparat... | 11/02/1999 |
| 5963611 | Steam separator, nuclear power generation plant, and boiler apparatus A separator/injector having an outlet pressure higher than an inlet pressure thereof is introduced instead of the dynamic equipment for a reactor recirculation system that is necessary in the prior art, to achieve both liquid-vapor separation and forced c... | 10/05/1999 |
| 5898744 | Apparatus and method for clock recovery in a communication system A method for recovering the clock in an ADSL (asymmetric digital subscriber line) communication system at the receiver to match the frequency of the transmitted signal. A digital phase locked loop (DPLL) based clock is used to adjust the frequency of data... | 04/27/1999 |
| 5876146 | Apparatus and methods for repairing jet pump diffusers in a nuclear reactor Repair assemblies and methods for a jet pump diffuser in a nuclear reactor are described. In one particular embodiment, the diffuser has a substantially conical shape, and the larger diameter end of the diffuser is engaged to a shroud support plate of the... | 03/02/1999 |
| 5805652 | Apparatus and methods for replacing jet pump diffusers in a nuclear reactor A replacement jet pump diffuser apparatus and method are described. In one embodiment, the replacement diffuser apparatus includes a conical section, a first cylindrical section, and a second cylindrical section. The conical section is welded to the first... | 09/08/1998 |
| 5699397 | Tool for vertically supporting tie rod assembly against clevis pin on gusset plate in boiling water reactor A tool for vertically supporting a shroud repair tie rod assembly having a clevis hook by bracing the clevis hook against a clevis pin installed in a gusset plate. This allows the vertical support at the upper end of the tie rod assembly to be removed, so... | 12/16/1997 |
| 5659590 | Removable shroud and pump deck for a boiling water nuclear reactor In a pressure vessel of a nuclear reactor containing a core assembly enclosed within a core shroud, the core shroud spaced radially inwardly of a side wall of the pressure vessel with an annular pump deck located in an annular radial space between the cor... | 08/19/1997 |
| 5583899 | Removable retrofit shroud for a boiling water nuclear reactor and associated method In a pressure vessel of a nuclear reactor containing a core assembly enclosed within a core shroud, the shroud spaced radially inwardly of a side wall of the pressure vessel, and an annular pump deck welded in a place in an annular radial space between th... | 12/10/1996 |
| 5577083 | Method and apparatus for electro-protection of piping systems and reactor-internals from stress corrosion cracking A method and an apparatus for electrically suppressing electrochemical potential near highly susceptible components of a boiling water reactor. A small self-powered, electrical device is affixed to the metal area to be protected, which device has the capa... | 11/19/1996 |
| 5519744 | Removable shroud and pump deck for a boiling water nuclear reactor In a pressure vessel of a nuclear reactor containing a core assembly enclosed within a core shroud, the core shroud spaced radially inwardly of a side wall of the pressure vessel with an annular pump deck located in an annular radial space between the cor... | 05/21/1996 |
