Matches 1 - 50 out of 132 1 2 3 >


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8590383 Ultrasonic inspection probe carrier system for performing non-destructive testing  
An ultrasonic probe carrier includes a base, a first side arm having a first end thereof attached to the base and a second end thereof extending outwardly from the base on one side of a tube, and...
8542124 Acoustic leak detector  
An acoustic detector assembly for detecting a leak of a pressurized mixture of liquids and gases in a pipeline or pressurized vessel that includes an ultrasonic acoustic transducer generating an...
8437445 Method for predicting stresses on a steam system of a boiling water reactor  
A method of predicting stresses on a BWR steam dryer that includes creating an analytical acoustic model of a BWR steam system; generating pressure estimations by inputting empirical data into the...
8250923 Ultrasonic inspection method and ultrasonic inspection apparatus  
An ultrasonic inspection method and ultrasonic inspection apparatus is capable of inspecting a weld line and of detecting a circumferential crack and an axial crack that are present in the weld...
7929656 Apparatus for ultrasonic inspection of reactor pressure vessel  
An object of the present invention is to provide an inspection apparatus for inspecting weld zones in a reactor pressure vessel, the inspection apparatus comprising: an ultrasonic probe 6 for...
7784135 Tool for brushing circumferential welds in restricted access areas  
A tool assembly provides for brushing circumferential welds in a restrictive access area between a cylindrical inner member and a cylindrical outer member such as the shroud and vessel in a...
7693251 Method and apparatus for ultrasonic inspection of reactor pressure vessel  
The ultrasonic probe of the ultrasonic inspection apparatus, which is pushed onto the outer surface of the reactor pressure vessel, transmits and receives an ultrasonic wave to and from a...
7201055 Ultrasonic miniature air gap inspection crawler  
A miniature air gap inspection crawler. The miniature air gap inspection crawler may include a base, a linear drive mechanism and a circumferential drive mechanism such that either the linear...
7104127 Nondestructive method for inspecting cladding tubes  
The present invention relates to a nondestructive method or inspecting defects of the cladding of a nuclear fuel rod, which is featured by a wave emitter obliquely discharging an inspection wave...
6879653 Method and device for measuring the diameter of a peripheral rod in a fuel assembly of a nuclear reactor  
The diameter of a segment of a peripheral rod in a fuel assembly is measured between two successive spacer grids. A measuring tool is positioned at a level situated between the two successive...
6680994 Monitoring the contents of a container by ultrasonic means  
The contents of a container 1 are non-intrusively monitored by probing the container with an ultrasonic signal, and measuring changes in the ultrasound signature of the received signal after the...
6625244 Inspection apparatus for examining jet pump beams in nuclear reactors  
An inspection apparatus for inspecting jet pump beams of nuclear reactors is provided. The inspection apparatus includes a base straddlingly mountable on a jet pump beam. The base includes a beam...
6544606 Systems and methods for storing fissile materials  
A preferred embodiment may generally be construed as providing a method for storing fissile material, such as spent nuclear fuel (SNF), and includes the steps of: providing a storage container...
6526114 Remote automated nuclear reactor jet pump diffuser inspection tool  
An inspection apparatus for inspecting welds in a nuclear reactor jet pump includes a probe subassembly rotatably and linearly movably coupled to a frame structure configured to attach to a top...
6459748 Floating ultrasonic testing end effector for a robotic arm  
An end effector for supporting an ultrasonic testing probe on a robot arm having a robot mounting bracket for use in a nuclear reactor pressure vessel. The end effector has a wrist assembly with a...
6222897 Wrist raster scan methods  
Scan methods of inspecting piping and welds of a pipe elbow in a reactor pressure vessel of a boiling water reactor are disclosed. The scan apparatus includes a motor connected to a scan head...
6137853 Method and apparatus for remote ultrasonic inspection of nozzles in vessel bottom head  
A method and an apparatus for ultrasonically inspecting the welds which attach the differential pressure and liquid poison nozzles to the bottom head of the reactor pressure vessel in a boiling...
5982839 Assemblies and methods for inspecting piping of a nuclear reactor  
Automated inspection assemblies for scanning pipes of a nuclear reactor are described. In one embodiment, the assembly includes a mounting subassembly and a scanning subassembly. The mounting...
5835547 Method and apparatus for inspecting the rods of a nuclear reactor control cluster  
The apparatus for inspecting the rods of a cluster insertable in the core of a nuclear reactor comprises a body provided with sliding guide means for rods in m different orientations of the...
5790617 Method and apparatus for detection of failed fuel rods by use of acoustic energy frequency attenuation  
A system and method of the present invention measures the relative stress in the cladding of a nuclear fuel rod caused by the internal gas pressure of the rod. This is done by determining the...
5767410 Lamb wave ultrasonic probe for crack detection and measurement in thin-walled tubing  
A probe inspects steam generator tubing for defects. The probe includes a transducer which generates a localized ultrasonic Lamb wave. The ultrasonic wave is transferred to the tubing by a...
5692024 Reactor pressure vessel top guide structure inspection apparatus and transport system  
A reactor pressure vessel top guide structure inspection and transport system comprising a remotely operable and positionable underwater vehicle for traversing the top guide structure of a reactor...
5681995 Ultrasonic flaw detecting apparatus for inspecting multi-layer structure and method thereof  
An ultrasonic flaw detecting apparatus for efficiently detecting a flaw existing in a deep portion of a multi-layer structure includes a first sensor arranged so as to transmit an ultrasonic wave...
5661242 Process and apparatus for the ultrasonic testing of a component accessible only through a gap  
A process and an apparatus for the ultrasonic testing of a component accessible only through a gap, includes driving a carrier accommodating an ultrasonic testing head into an annular gap and...
5657245 Component maintenance system  
A component maintenance system having a network linked to a data acquisition system, a data analysis system, a historical file of component design and inspection information, and a diagnostic...
5625150 Integrated acoustic leak detection sensor subsystem  
A sensor system for mapping absolute acoustic noise intensity in a three-dimensional acoustic noise field. Localized noise sources within a vessel are extracted using a distant array of...
5596612 Testing arrangement for materials testing, particularly in a pressurized-water reactor  
A testing arrangement (14) and a method for materials testing at lead-throughs in a cap of a pressurized-water reactor, comprising a flexible sword (85) which at one end is equipped with a probe....
5586155 Narrow access scanning positioner for inspecting core shroud in boiling water reactor  
A method and an apparatus for inspecting a core shroud by remote operation. The apparatus is a robotic scanning device which can be installed in the narrow space between the core shroud and the...
5577088 Method and device for ultrasonic examination of faces of the internal surface of the wall of cladding  
The tubular cladding (1) comprises an internal surface of substantially prismatic shape, having successive faces. An ultrasonic examination head (3) makes it possible to emit ultrasound waves in...
5568527 Method and apparatus for remote ultrasonic inspection of core spray T-box welds  
A method and an apparatus for in situ ultrasonic inspection of the core spray T-box to thermal sleeve attachment weld and the core spray T-box to cover plate attachment weld in BWRs. The apparatus...
5549004 Hand held tube wall thickness ultrasonic measurement probe and system  
Corrosion damage to the tubes of power plant boiler waterwalls is detected by a portable hand-held ultrasonic scanner probe equipped with plurality of dual element transducers having concave...
5539789 Method and apparatus for identifying failed nuclear fuel rods during refueling in a reactor core  
An accelerometer is mounted onto the releasable fuel gripper structure of a refueling machine to form a mechanical interconnection between an accelerometer and a nuclear fuel assembly during...
5533383 Integrated acoustic leak detection processing system  
A system for mapping absolute acoustic noise intensity in a three-dimensional acoustic noise field, and using three-dimensional absolute noise intensities to infer operational or performance...
5519741 System for inspection and mending in a reactor vessel of a nuclear reactor  
A system for inspection and mending in a reactor vessel of a nuclear reactor comprises a track mechanism, support mechanisms for supporting the track mechanism, an inspection apparatus traveling...
5517537 Integrated acoustic leak detection beamforming system  
A system for mapping absolute acoustic noise intensity in a three-dimensional acoustic noise field, and using three-dimensional absolute noise intensities to infer operational or performance...
5442665 Strain gauge instrumentation device for in-core monitor housings  
A device for easily installing and removing strain gauge instrumentation and associated wiring on the inside of in-core monitor housings. A vibration sensor is attached to an inside diameter of a...
5426678 Method for ultrasonic inspection of a closely packed array of fuel rods surrounded by a thin-walled metallic channel  
A method for ultrasonically inspecting a closely packed regular array of mutually parallel, uniformly sized and spaced rigid rods surrounded by a thin-walled metallic channel and immersed in a...
5425064 Nuclear turbine coolant flow meter  
Coolant flow (900) in the core (103) of a natural circulation boiling water reactor (100) is monitored by making use of a detector (208) for nuclear radiation and a turbine device (204) which...
5423219 Defects detection device for fuel rod weldment  
A compact ultrasonic inspection device of high resolution and operating speed is presented for examining the defects in a welded section between the end plug and the fuel pipe. The welded fuel rod...
5420898 Remote manipulator  
The manipulator has a base including an elongated bar having a center between first and second opposed ends. Fluidly actuated end effectors at the first and second ends of the base, are extensible...
5418823 Combined ultrasonic and eddy-current method and apparatus for non-destructive testing of tubular objects to determine thickness of metallic linings or coatings  
A combined ultrasonic and eddy-current method and apparatus for non-destructively determining the liner thickness of a zirconium liner provided at the inner surface of a zirconium alloy nuclear...
5404754 Ultrasonic detection of high temperature hydrogen attack  
This invention defines a combined inspection procedure using ultrasonic techniques for detection of hydrogen attack damage in material. The procedure comprises an initial scanning procedure for...
5396800 Apparatus and method for inspecting a control rod drive mechanism penetration tube for degradation  
Apparatus and method for inspecting a tubular member for degradation, which tubular member may be a control rod drive mechanism (CRDM) penetration tube of the kind typically found in nuclear power...
5377237 Method of inspecting repaired stub tubes in boiling water nuclear reactors  
An ultrasonic method of inspecting repaired stub tubes in a boiling water reactor. The top and bottom ends of each stub tube are respectively welded to the corresponding control rod drive housing...
5361280 Method for reading a nuclear fuel assembly identification code  
A nuclear fuel identification code reader has an optical sensor for detecting a nuclear fuel identification code marked on a fuel assembly and an ultrasonic wave sensor for detecting the nuclear...
5327783 Method of monitoring heat exchanger vibrations  
A non-intrusive vibration measurement system and method using commercial ultrasonic instruments together with digital signal filtering and analysis techniques is adapted to quantitatively detect...
5319972 Ultrasonic liquid level measurement system  
An ultrasonic level measuring system includes a transducer mounted on the bottom of a pipe which launches acoustic pulses up through the pipe wall into the water. The pulses are reflected from the...
5313838 Bent tube inspection probe with a rotary inspection head  
This probe comprises a cable (4) and a probe head (6) fixed to one end of the cable and having an inspection head (18) provided with transmission-reception means (22, 24) for inspection signals...
H001262 Rod examination gauge  
The present invention is directed to a semi-automatic rod examination gauge for performing a large number of exacting measurements on radioactive fuel rods. The rod examination gauge performs...
5257545 Method and apparatus to monitor check valves  
A non-intrusive vibration measurement system and method using commercial ultrasonic instruments together with digital signal filtering and analysis techniques is adapted to quantitatively detect...

Matches 1 - 50 out of 132 1 2 3 >