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| Number | Title | Issue Date |
| 8136408 | Strain sensor mounted with light curable adhesive A device includes a structure, a strain sensor and a light curable adhesive. The structure has a structure surface. The light curable adhesive bonds the strain sensor to the structure surface. ... | 03/20/2012 |
| 7987728 | Piezoceramic-based smart aggregate for unified performance monitoring of concrete structures A system for monitoring the health of a structure, e.g., a concrete wall, bridge, pillars, using a smart aggregate is disclosed. The smart aggregate includes a piezoceramic transducer(s) and associated communication links. The transducer is embedded into the structu... | 08/02/2011 |
| 7950289 | Damage sensors A damage sensor comprises a probe track, a sense track, and a signal generator operable to input a probe signal to the probe track. The probe track and the sense track are electromagnetically coupled by a structure on which they are provided, such that the probe sig... | 05/31/2011 |
| 7832280 | Method and apparatus for testing load-bearing capacity utilizing a ring cell An annular assembly, or ring cell, is provided for testing the load bearing capacity of piles. The ring cell walls of the annular assembly can be made of stamped material. The ring cell walls can be an outer ring wall and an inner ring wall. Alternately, the ring ce... | 11/16/2010 |
| 7461560 | Strain gauge with moisture barrier and self-testing circuit A structure includes a structure surface and a protective cover. The protective cover includes a circuit having a component, a moisture detector, and a radio frequency transmitter. The component is adhesively connected to the structure surface with an adhesive conne... | 12/09/2008 |
| 7380462 | Apparatus and method for measuring supporting force of large diameter ferroconcrete piles An apparatus measures a supporting force of ferroconcrete piles by means of a bi-directional front end oil pressure loading apparatus using a high pressure loading system capable of measuring a supporting force, a sinking amount and an axis load distribution on the ... | 06/03/2008 |
| 7357028 | Nondestructive testing apparatus A nondestructive testing apparatus inspects an internal part of a large-diameter pile using both a single transmission/reception probe for transmitting/receiving an ultrasound signal of more than 50 kHz and a plurality of reception probes, digitally processes the re... | 04/15/2008 |
| 7343265 | System to monitor the health of a structure, sensor nodes, program product, and related methods A system to monitor the health of a structure, health monitoring sensor nodes, program product, and associated methods are provided. The system includes an array of health monitoring sensor nodes connected to or embedded within a structure to monitor the health of t... | 03/11/2008 |
| 7281434 | Service life sensor device A device for monitoring the service life of a machine-technical installation includes a sensor module and at least a measuring sensor for detecting stresses and expansions from a structural component of the machine-technical installation, a microcontroller, an anten... | 10/16/2007 |
| 7281311 | Method of attaching a transfer resistant RFID tag to a surface A transfer resistant RFID tag preferably includes an identification chip, a tag coil, a housing and a cap. The identification chip is electrically connected to the tag coil with two wires. A first quantity of bonding compound is applied to a surface that is slightly... | 10/16/2007 |
| 7254896 | Inner bearing split axle assembly A split axle assembly for obtaining gage measurements of a track including a first wheel with a first split axle, a second wheel with a second split axle, a first bearing for rotatably receiving the first split axle, and a second bearing for rotatably receiving the ... | 08/14/2007 |
| 7233886 | Adaptive modeling of changed states in predictive condition monitoring An improved empirical model-based surveillance or control system for monitoring or controlling a process or machine provides adaptation of the empirical model in response to new operational states that are deemed normal or non-exceptional for the process or machine.... | 06/19/2007 |
| 7212123 | Detector A detector for detecting the presence of a memory tag, the detector comprising a radio frequency source operable to generate a radio frequency signal and a detector resonant circuit part connected to the radio frequency source, the detector resonant circuit comprisi... | 05/01/2007 |
| 7188039 | Damped frequency response apparatus, systems, and methods Apparatus, systems, and methods are disclosed to solve an equation associated with a structure of the form {−ω2MR+iωBR+[(1+iγ)KR+i(K4R)]}Y=FR, wherein ω is a time-harmonic excitation frequency, ... | 03/06/2007 |
| 7180404 | Wireless sensor systems and methods, and methods of monitoring structures A wireless sensor system includes a passive sensor apparatus configured to be embedded within a concrete structure to monitor infiltration of contaminants into the structure. The sensor apparatus includes charging circuitry and a plurality of sensors respectively co... | 02/20/2007 |
| 7181357 | Method and apparatus to calibrate thermometer Briefly, a processor and a method to calibrate a temperature reading of a digital thermometer. The calibration is done by using a first temperature value measured by an analog temperature sensor located at one point on the processor die and a second temperature valu... | 02/20/2007 |
| 7155981 | Strain sensor with fixing members A strain sensor improved in detection accuracy without variation of bending stresses applied to the strain detecting element. The sensor substrate has a first fixing hole at one end and a second fixing hole at the other end, a detecting hole at the center, and at le... | 01/02/2007 |
| 7131238 | Method of testing seismic braces Braces for bracing objects in structures against forces due to earthquakes are tested by subjecting components of the braces for attaching the braces to the object or structure to cyclic loading of approximately 15 cycles. The cyclic forces are applied to different ... | 11/07/2006 |
| 7090647 | Bedsore main-factor measuring device A distortion generating sheet (22) intervenes between a first and a second flexible sheets (11) and (12), respectively, with one end (23) thereof fixed to the first sheet (11), and the other end (24) fixed to the second shee... | 08/15/2006 |
| 7027957 | Current interrupter assembly A method for determining the influence of one of a plurality of cathodic protection circuits along a pipeline includes switching one of a plurality of cathodic protection circuits off, while the remainder of the plurality of cathodic protection circuits are left on,... | 04/11/2006 |
| 7024780 | Method and device for determining the rectilinearity of guide rails A method and a device for determining the rectilinearity of guide rails wherein a guide rail is oriented substantially parallel to a reference axis. At least one light beam is emitted along the reference axis by a light source and is detected by a light detector. Wh... | 04/11/2006 |
| 6957172 | Complex signal decomposition and modeling A system, method and program product for monitoring a complex signal for ultrasensitive detection of state changes, or for signature recognition and classification is provided. A complex signal is decomposed periodically for empirical modeling. Wavelet analysis, fre... | 10/18/2005 |
| 6944550 | Method for tensioning multiple-strand cables A method whereby the strands (13,13A) are fixed one after another between two cable anchors (A,B) integral with the structure. The method consists: in pulling on one of the ends of a strand (13A) from one (A) of the cable anchors, while the other end i... | 09/13/2005 |
| 6928881 | Method and apparatus for monitoring structural fatigue and use An electronic stress monitoring device (1) is provided that is arranged to detect and record measurements of stress experienced by a structure (2) to which the stress history unit is attached, with the measurement and recordal of stress occurring at su... | 08/16/2005 |
| 6763311 | Shaking test apparatus and method for structures A calculating device and method provided for a shaking test apparatus for carrying out a shaking test on a structure by using a partial structure and a numerical model which is virtually connected to the partial structure. The calculating device includes a calculati... | 07/13/2004 |
| 6622567 | Micropower peak strain detection system for remote interrogation A sensing device includes an RFID chip and a differential variable reluctance transducer (DVRT) sensor that can be read remotely with electromagnetic power provided to the device from a remote reader. The ac signal provided to the device by inductance is ... | 09/23/2003 |
| 6588282 | Peak strain detection linear displacement sensor system for smart structures The novel peak strain detection linear displacement sensor system for smart structures is designed to provide monitoring of the strain in structures and reporting their strain histories. The system comprises the use of micro miniature, high resolution, pa... | 07/08/2003 |
| 6469639 | Method and apparatus for low power, micro-electronic mechanical sensing and processing A method and apparatus for low-power sensing and processing are provided. A method preferably includes collecting a plurality of sensor signals. The plurality of sensors include sensed data representative of at least shock and vibration. The method also i... | 10/22/2002 |
| 6386043 | Lateral motion sensing assembly A lateral motion sensing assembly for sensing movement experienced by a structural member such as a support beam or driven pile. The sensing assembly is immersed within a casing which is mounted to the structural member. The sensing assembly includes a su... | 05/14/2002 |
| 6371698 | Post stressed pier A structural pier assembly includes a cementitious pier and pressurized grout contained beneath the pier in the shaft so as to exert an upward force on the pier. An enclosure, such as a bladder or bellows, is filled with grout from a reservoir via a condu... | 04/16/2002 |
| 6314376 | Method and device for checking the solidity of anchored standing masts According to the method suggested, the mast is submitted to an increasing force, and both this force and the deflection path are correlated to establish a characteristic load line. After it has been loaded, the mast is again relieved from the load, a char... | 11/06/2001 |
| 6055866 | Process and device for checking the solidity of vertically anchored masts A method and apparatus or device are shown for checking the solidity of vertically anchored masts increasing tensile and compression forces which can be acquired with a force sensor are introduced into the mast above its anchoring, in order to load the ma... | 05/02/2000 |
| 6029526 | Method and apparatus for measuring in situ or stress of concrete Method and apparatus for measuring in situ the strain and stress of concrete, and having an initial stress resulting from existing stress in the concrete and stress caused from varying externally applied forces on the concrete, by placing a strain gauge o... | 02/29/2000 |
| 5880374 | Premanufactured building tie down system testing rig A premanufactured building tie down system testing rig useful in testing the effectiveness of a selected tie down system in resisting high wind forces that could be imposed upon a premanufactured building. The testing rig generally comprises a frame that ... | 03/09/1999 |
| 5857534 | Robotic inspection apparatus and method A robotic assembly (20) is provided which is adapted to traverse the surface of a member (138) for inspection and/or work on or about the surface of the member (138). The preferred assembly (20) includes two or more robots (10a-10c) spaced about the body ... | 01/12/1999 |
| 5850043 | In-place shear wall testing method and apparatus A method and apparatus for the in-place testing of the shear strength of a rectangular area of a wall. The method includes affixing a first shoe to an upper corner of a rectangular area of the wall and a second shoe to the lower opposite corner of this re... | 12/15/1998 |
| 5824912 | Method of roof control in an underground mine Stresses in an underground mine are determined by analyzing mechanical properties of mine site stratum including Young's modulus. The mechanical properties are combined with the physical layout of the mine. From the application of the mechanical propertie... | 10/20/1998 |
| 5801314 | Bridge movement detector A damage detection system for detecting impacts to static structures such as bridges and the like. The damage detection system comprises an impact sensor assembly and impact analyzer system. The impact sensor assembly comprises a pendulum mounted for move... | 09/01/1998 |
| 5792960 | Tool for measuring decay in wood A tool for measuring the extent of decay in a wooden object, comprising an elongated probe adapted to be inserted in an inspection hole drilled in the wooden object. The tool has at least one barb protruding therefrom adjacent to one end of the probe. The... | 08/11/1998 |
| 5792961 | Portable motorized fastener tester A portable fastener tester system for measuring the pullout strength of a fastener that is comprised of an electronic processing unit electrically coupled to a load cell, an optical reader, an opto chopper disc, and a display, a motor having a shaft coupl... | 08/11/1998 |
