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| Number | Title | Issue Date |
| 8390278 | Eddy current inspection probe for inspecting the interior of a tubular member An eddy current probe for inspecting steam generator tubing, that has radially outwardly biased rollers that function to center the probe within the tubing and reduce friction as the probe moves along the interior of the steam generator heat exchanger tube walls. Th... | 03/05/2013 |
| 8373411 | Sensor system for an in-line inspection tool In an in-line pipe inspection tool, sensors for inspecting the pipe are mounted on sensor blocks moveable relative to the body of the tool. However, when the sensor blocks move radially to conform to different pipe diameters, the circumferential distances between th... | 02/12/2013 |
| 8319494 | Pipeline inspection tool with double spiral EMAT sensor array A pipeline inspection tool includes two pole magnets oriented at an oblique angle relative to the central longitudinal axis of the tool body. An array of sensor coil sets is located between opposing edges of the two pole magnets and oriented perpendicular to the cen... | 11/27/2012 |
| 8299785 | Device for the non-destructive testing of parts in a turbomachine A device for the non-destructive testing of parts of a turbomachine motor, including a longitudinal rod carrying at its distal end a longitudinal finger carrying a retractile or deployable flexible blade supporting an inspection probe, this blade being guided in axi... | 10/30/2012 |
| 8264219 | In-line pipe inspection tool An in-line pipe inspection tool has one or more inspection platforms (28, 30) which are connected to an elongate wheeled trolley by link arms (20 to 26). The trolley unit (10, 12) has drive means for driving the point of connection of the... | 09/11/2012 |
| 8232796 | Conduit sensor device with magnetic shunt and process for modifying a magnetic field A conduit sensor device includes first and second pairs of permanent magnets. First and second rotor shunts include first and second rotatable magnets and interposed between the first and second pairs of permanent magnets, respectively. A shunt shaft includes a firs... | 07/31/2012 |
| 8134360 | Measurement of pipe wall thickness using magnetic flux leakage signals An apparatus comprising a processor configured to implement a method comprising obtaining a pipe profile comprising a diameter, a nominal thickness, and a material, receiving a magnetic flux leakage (MFL) indication for a pipe associated with the pipe profile, and d... | 03/13/2012 |
| 8098063 | Untethered, unpowered, rollable device to sense condition of pipeline wall A sensor unit for use in sensing conditions in a pipeline comprises an untethered a ball-shaped surround adapted to roll along the interior surface of a pipeline, and instrument package within the ball-shaped surround. The package contains at least one magnetometer ... | 01/17/2012 |
| 8089273 | Spiral magnetic field apparatus and method for pipeline inspection A system and method are disclosed for inspecting the wall of a pipeline while traveling therethrough. The system may comprise a portion of pipe comprising a pipe wall forming a cylindrical tube defining a circumferential direction and an axial direction. The system ... | 01/03/2012 |
| 8076928 | System and method for in-situ integrity and performance monitoring of operating metallic and non-metallic natural gas transmission and delivery pipelines using ultra wideband point-to point and point-to point and point-to-multipoint communication An operational monitoring system for use in communications, and a method thereof, for operational, systems or integrity management of pipeline infrastructures which operates by broadcasting wireless signals through gas distribution networks and analyzing the travers... | 12/13/2011 |
| 7923994 | Spiral magnetic field apparatus and method for pipeline inspection A system and method are disclosed for inspecting the wall of a pipeline while traveling therethrough. The system may comprise a portion of pipe comprising a pipe wall forming a cylindrical tube defining a circumferential direction and an axial direction. The system ... | 04/12/2011 |
| 7859256 | Defect discriminator for in-line inspection tool An in-line inspection tool comprising primary and secondary sensor suites is disclosed. The primary sensor suite may detect both interior and exterior defects. The secondary sensor suite may comprise a plurality of housings distributed in the circumferential directi... | 12/28/2010 |
| 7782048 | Eddy current testing method, eddy current testing differential coil and eddy current testing probe for internal finned pipe or tube The invention provides an eddy current testing method for an internal finned pipe or tube which can securely detect a micro defect generated in a trough portion in an inner surface of the pipe or tube, even in the case that an inner surface shape of the internal fin... | 08/24/2010 |
| 7768259 | Device for non-destructive eddy current inspection of a hole formed in a conductive part Using eddy currents to inspect a hole that is possibly not rectilinear and/or of section that is not circular. The inspection device comprises a stick shaped and dimensioned to be capable of being engaged in said hole, at least one arm hinged to a support fastened t... | 08/03/2010 |
| 7733085 | Flangeless canister for in-line inspection tool An in-line inspection tool comprising a sensor suite, a processor processing the signal generated by at least one sensor of the sensor suite, and a canister housing the processor is disclosed. The canister may comprise a canister body formed as a hollow cylinder ext... | 06/08/2010 |
| 7733084 | Eddy current acquisition system An eddy current acquisition system integrates traditional elements of a nuclear steam generator tubing inspection into a single modular system comprising three subsystems: the take-up reel subsystem, the acquisition instrument, which is located in the hub of the tak... | 06/08/2010 |
| 7688067 | Probe for electrical measurement methods and use of a flexible probe for production of a rigid probe The invention relates to a probe for electrical measurements and use of a flexible probe to produce an inflexible probe. Conventional probes comprise a substrate which is mechanically rigid. As a result only planar surfaces may be examined with the probe. According ... | 03/30/2010 |
| 7683611 | Pipeline inspection using variable-diameter remote-field eddy current technology The present disclosure relates to a device and method for pipeline inspection, The inspection device may include an exciter coil capable of providing an alternating current magnetic field and producing eddy currents. A plurality of sensors may then be provided which... | 03/23/2010 |
| 7548059 | Pipeline inspection tool with spirally arranged sensor blocks A pipeline inspection tool has a spirally arranged series of blocks, with each block having a magnet and at least one magnetic flux sensor. An axially extending support may be provided which terminates in mounts and the series of blocks may be mounted between the mo... | 06/16/2009 |
| RE40515 | Method and apparatus for inspecting pipelines from an in-line inspection vehicle using magnetostrictive probes A method and system for implementing magnetostrictive sensor techniques for the nondestructive evaluation of pipeline structures. The system consists of a magnetostrictive sensor instrument unit, a data storage unit, and a plurality of magnetostrictive sensor probes... | 09/23/2008 |
| 7415363 | High resolution torque measurement on a rotating shaft with movement compensation An apparatus for determining the torque imposed on a rotatable shaft. The shaft has at least four paired probes, paired horizontal probes and paired vertical probes. The horizontal probes are positioned 90 degrees apart from the vertical probes. If the shaft moves h... | 08/19/2008 |
| 7413011 | Optical fiber system and method for wellhole sensing of magnetic permeability using diffraction effect of faraday rotator Systems and methods for optically determining casing collar and/or corrosion locations within boreholes, using the diffraction effect of Faraday crystals through which depolarized continuous light is transmitted within optical fibers. ... | 08/19/2008 |
| 7414395 | Method and apparatus inspecting pipelines using magnetic flux sensors The method for detecting stress corrosion cracking (SCC) of pipelines, comprising the steps of: identifying pipeline locations and pipeline conditions that are amenable to inspection by a magnetic flux inline tool and by a TFI tool; performing two inspections on the... | 08/19/2008 |
| 7402999 | Pulsed eddy current pipeline inspection system and method A pulsed eddy current pipeline inspection device is provided. The pulsed eddy current pipeline inspection device comprises a plurality of stages longitudinally spaced apart from each other and adapted to move between a contracted position and an expanded position, a... | 07/22/2008 |
| 7362097 | RFT pipeline inspection system and method therefor A system (20) and method for the inspection of a pipeline (22) is disclosed. The system (20) is made up of a plurality of flexibly coupled modular units (24) configured to pass through the pipeline (22). One modular unit (24... | 04/22/2008 |
| 7354348 | Hollow universal joint A hollow universal joint having a first member, a second member and a first hollow yoke ring coupling the first member to the second member to transfer rotational motion between the first and second members. The first hollow yoke ring has a first central axis. The f... | 04/08/2008 |
| 7339341 | Surgical camera robot The present invention is a miniature camera robot which can be placed entirely within an open space such as an abdominal cavity. The instant camera robot has pan and tilt capabilities, an adjustable focus camera, and a support component for supporting the robot body... | 03/04/2008 |
| 7322410 | Controllable production well packer An apparatus and method for operating an electrically powered device in a packer using the piping structure of the well as an electrical conductor for providing power and/or communications. The electrically powered device may comprise an electrically controllable va... | 01/29/2008 |
| 7321228 | Detection of metal disturbance in a magnetic tracking system A method for tracking an object includes producing energy fields at a plurality of different frequencies in a vicinity of the object, and receiving signals that are generated at a location of the object at the different frequencies in response to the energy fields. ... | 01/22/2008 |
| 7320249 | Magnetically attracted inspecting apparatus and method using a fluid bearing An apparatus and method for inspecting a structure are provided which include probes with sensing elements and are disposed proximate opposite surfaces of a structure, where only one of the probes need be driven. A tracking probe may be magnetically coupled to a dri... | 01/22/2008 |
| 7317308 | System and method for measuring electric current in a pipeline A system for measuring a voltage differential in a current-carrying pipe using a propulsion vehicle for conveying the system inside the pipe. The system includes a first contact for maintaining electrical contact with the pipe as the vehicle moves through the pipe, ... | 01/08/2008 |
| 7302867 | Magnetic transducer torque measurement A magnetic transducer element is formed by rotating an integral region of a shaft about an axis in the presence of a magnetic source. An annulus of magnetization results in having its magnetization in the axial direction. The exterior magnetic field emanated by the ... | 12/04/2007 |
| 7295004 | Eddy current probe and method of manufacture thereof An eddy current probe includes a plurality of deformable substrates each having a pair of coils wound coaxially thereabout in spaced relation and a housing supporting said plurality of substrates adjacent to each other with each substrate compressed in a direction l... | 11/13/2007 |
| 7295003 | Non-destructive testing system and method utilizing a magnetic field to identify defects in a layer of a laminated material Techniques for detecting defects in the proximity of a hole of a laminate structure include inserting a generally cylindrical body portion into a hole such that a first coil of wire will reside in a plane substantially parallel to a first electrically conductive lay... | 11/13/2007 |
| 7284456 | Apparatus for moving a measuring device along a pipe The apparatus is for displacing a measurement device along a pipe. The apparatus comprises a bracelet; a support device for supporting the measurement device in relation to the bracelet; at least one drive wheel each having an axis, mounted on the bracelet and orien... | 10/23/2007 |
| 7268541 | Detecting failures of flexible multistrand steel structures A flexible elongate structure, such as a flexible riser (10), comprising at least one layer (20) of steel wires near the surface which extend at least partly along the length of the structure, can be monitored by inducing a small, alternating magnetic ... | 09/11/2007 |
| 7259688 | Wireless reservoir production control A reservoir production control system includes a plurality of wells for producing a reservoir linked to a central computer over a downhole communication network and a surface communication network. Both the downhole and the surface communication networks are wireles... | 08/21/2007 |
| 7256576 | ID-OD discrimination sensor A sensor body for use in a pig for determining characteristics of a pipeline wall though which the pig passes includes a circuit board and a single coil wrapped around the circuit board. A microcontroller is mounted to the circuit board and connected to the single c... | 08/14/2007 |
| 7240574 | Sensors carrier for in-tube inspection scraper A sensor carrier for an in-tube inspection scraper has setting places for installation of monitoring sensors responsive to any diagnostic parameters of a pipeline being inspected. The carrier includes a set of kinematically interconnected sensor supports that are su... | 07/10/2007 |
| 7242201 | Apparatus and method for detecting state of heat exchanger tube Provided is an apparatus for concurrently detecting a defect occurring in a heat exchanger tube and a geometric transition of the heat exchanger tube. The apparatus for detecting the state of a heat exchanger tube, including: the first detection unit detecting a def... | 07/10/2007 |
