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| Number | Title | Issue Date |
| 7408357 | Device for detecting contact wear in switching appliances A device for detecting wear of switching contacts in an electric switch appliance is disclosed, the wear of the contacts being caused at least at a pair of switching contacts appliance. The device includes a lightwave guide and a detector. A light exiting from at le... | 08/05/2008 |
| 7320245 | Corrosion testing apparatus A rotational test electrode assembly for use in a corrosive fluid environment as shown in FIG. 1 that includes a generally cylindrical heat and electrically conductive member (110) having an annular portion (112) and a solid portion (114)... | 01/22/2008 |
| 7313947 | Corrosion sensing microsensors A microsensor for detecting corrosive media acting on a bulk metallic material when mounted in situ adjacent a location in the bulk metallic material. The microsensor includes a plurality of corrosion sensors (4A, 4B, 4C) exposed to the corrosiv... | 01/01/2008 |
| 7301239 | Wiring structure to minimize stress induced void formation A wiring structure with improved resistance to void formation and a method of making the same are described. The wiring structure has a first conducting layer that includes a large area portion which is connected to an end of a protrusion with a plurality of “n”... | 11/27/2007 |
| 7292052 | DCVG-CIPS measuring apparatus for detecting the results of a pipe line The present invention relates to a pipeline examination apparatus for Direct Current Voltage Gradient (DCVG) and Closed Interval Potential Survey (CIPS) methods. The pipeline examination apparatus of the present invention detects and analyzes at least one electrode ... | 11/06/2007 |
| 7270890 | Wear monitoring system with embedded conductors Aspects of the invention relate to a system for monitoring the wear of a component. A conductor can be embedded in the component at a depth from a surface of the component. In one embodiment, the conductor can be operatively connected to a power source to form an el... | 09/18/2007 |
| 7250776 | System for on-line assessment of the condition of a thermal coating on a turbine vane Aspects of the invention relate to a system for assessing the condition of a thermal barrier coating on a turbine vane during engine operation. According to embodiments of the invention, one or more wires can be passed along the airfoil portion of the vane. The wire... | 07/31/2007 |
| 7238263 | Corrosion tester A portable, handheld, automatic protection level interpreting cathodic protection meter for testing the level of protection being afforded to metallic structures protected by either sacrificial anode or impressed current cathodic protection systems, or both. The met... | 07/03/2007 |
| 7221137 | Apparatus with storage for measuring stray currents from subway rails and power lines A measuring apparatus with storage that measures and analyzes both stray currents from subway rails or power lines and the pipe-to-soil voltage of a buried metallic structure simultaneously is disclosed. The data measuring apparatus with storage for measuring stray ... | 05/22/2007 |
| 7189312 | Under water cable system having an earthing electrode An earthing electrode assembly and method for providing a submerged electrical apparatus with an earth path, the electrode assembly having an earthing electrode, an attachment device for attaching the electrode assembly to a cable, and an insulated electrical connec... | 03/13/2007 |
| 7189319 | Axial current meter for in-situ continuous monitoring of corrosion and cathodic protection current First and second axial current meters (ACM) are mechanically connected to a well casing just above and below a corrosive zone and a master axial current meter (MACM) is connected to the casing at the earth's surface, the MACM periodically obtaining measurements of a... | 03/13/2007 |
| 7157920 | Non-destructive monitoring of material integrity A component which is known to have particular degradation characteristics is instrumented to provide an electrical potential across a section in which a degradation is likely to occur. The potential drop across the component is then monitored to determine when, and ... | 01/02/2007 |
| 7143659 | Pipe-inspection system A pipe-inspection system (100) is provided. The system (100) is made up of a transmission cluster (104) incorporating a transmission unit (800) between first and second wheeled guidance units (400), and a reception cluster (104 | 12/05/2006 |
| 7123031 | System for on-line assessment of the condition of thermal coating on a turbine vane Aspects of the invention relate to a system for assessing the condition of a thermal barrier coating on a turbine vane during engine operation. According to embodiments of the invention, one or more wires can be passed along the airfoil portion of the vane. The wire... | 10/17/2006 |
| 7100461 | Portable contaminant sampling system The invention is a portable sampling system for sampling various media for contaminants. The media sample can include gases, liquids, and dry powders. The contaminant sample can include gaseous components, particulates of various kinds, and microorganisms. The syste... | 09/05/2006 |
| 7098054 | Method and structure for determining thermal cycle reliability A device and method for evaluating reliability of a semiconductor chip structure built by a manufacturing process includes a test structure built in accordance with a manufacturing process. The test structure is thermal cycled and the yield of the test structure is ... | 08/29/2006 |
| 7096721 | Corrosion coupon rack and coupon holder A corrosion coupon rack includes one or more coupon mounting devices constructed of a coupon holder receiver including a handle recess of a given diameter and an end wall, a connection conduit in communication with the handle recess through an opening in the end wal... | 08/29/2006 |
| 7061255 | Corrosion monitoring system A system for monitoring corrosion in metal by comparing a test sample exposed to a corrosion causing environment and a reference sample exposed to a protected environment. An AC voltage source generates a square wave signal oscillating between ground and voltage Vcc... | 06/13/2006 |
| 7052215 | Cutting tool with sensor and production method therefor A cutting tool with a sensor according to the present invention includes an electrically conductive substrate, an insulation film provided on a surface of the electrically conductive substrate, and a sensor circuit of an electrically conductive film provided on the ... | 05/30/2006 |
| 7015701 | Highly time resolved impedance spectroscopy A highly time resolved impedance spectroscopy enhances measurement of the dynamics of non-stationary systems with enhanced time resolution. The highly time resolved impedance spectroscopy includes an optimized, frequency rich a.c., or transient, voltage signal is us... | 03/21/2006 |
| 6965320 | Cathodic test lead and pig monitoring system A pipeline monitoring system includes a series of monitoring stations (20), each having a computer (68), magnetic pig position detector (24), one or more input/output modules (90) and communications module (86). The communications ... | 11/15/2005 |
| 6952487 | Detecting the presence of failure(s) in existing man-made structures A method for capturing at least one image of an existing man-made structure and for detecting the presence of failure(s) in such existing man-made structure including: providing a detectable material on the surface or in an existing man-made structure so that portio... | 10/04/2005 |
| 6946855 | Electrical resistance sensor and apparatus for monitoring corrosion An apparatus (1) is disclosed for monitoring the effect on a material of exposure to a fluid, and thereby monitoring the effect on a section of pipe (9) for carrying the fluid. The apparatus includes a sensor element (51) exposed to the fluid an... | 09/20/2005 |
| 6940295 | Apparatus and methods for non-destructive inspection using microwave sensing Apparatus and methods for materials inspection using microwave sensing are disclosed. In one aspect, a system for detecting corrosion of a workpiece includes a scanning assembly having a support assembly adapted to be coupled to the workpiece, and a first translatio... | 09/06/2005 |
| 6932891 | Wear indicator for sacrificial anode An apparatus for indicating when a predetermined portion of a sacrificial anode has been corroded comprises a detector embedded within the interior of the sacrificial anode initially at a predetermined distance from an exposed exterior surface of the sacrificial ano... | 08/23/2005 |
| 6922070 | Evaluating pattern for measuring an erosion of a semiconductor wafer polished by a chemical mechanical polishing An evaluating pattern includes a conductive pattern formed on a substrate, an insulating layer which is formed on the conductive pattern, a plurality of contact holes formed in a rectangular area through the insulating layer, and a conductive material filled into th... | 07/26/2005 |
| 6902316 | Non-invasive corrosion sensor The non-invasive corrosion sensor includes a heat sink, at least two peltiers, a reference standard and a data acquisition device. Each peltier has a negative side and a positive side, and each peltier communicates with the heat sink such that the negative side of e... | 06/07/2005 |
| 6903540 | Anode rod depletion indicator An Anode Rod Depletion Indicator for use with a sacrificial anode in a fluid storage tank. A core wire, which is arranged within the anode, has a series of hollow or fluted passageways. When the anode depletion causes a predetermined amount of the core wire to be ex... | 06/07/2005 |
| 6888359 | Investigating current The invention is directed towards improved accuracy of investigations into corrosion using the methods and apparatus of the invention. In particular, the invention provides a method of investigating corrosion at a location, the method including measuring the variati... | 05/03/2005 |
| 6841322 | Detecting erosion in collector optics with plasma sources in extreme ultraviolet (EUV) lithography systems An embodiment of the present invention includes a technique to detect erosion in an extreme ultra violet (EUV) source collector system. An initial impedance and a coating impedance of a multi-layer (ML) coating of the collector in one of an extreme ultra violet lith... | 01/11/2005 |
| 6822432 | Methods and systems for automated pipeline testing A system and method for testing a cathodic protection system includes a cathodic protection rectifier configured to apply a voltage across a pipeline and a reference point. The method includes measuring a magnitude of an output voltage of the cathodic protection rec... | 11/23/2004 |
| 6809506 | Corrosion sensor loudspeaker for active noise control A system using tank corrosion sensors to provide for an overall assessment and monitoring of the electro-chemical corrosion and coatings condition in ships' tanks, and particularly in ships' seawater or compensated fuel tanks. The system includes reference half-cell... | 10/26/2004 |
| 6727695 | Test method and apparatus for noncontact and nondestructive recognition of irregularities in the wall thickness of ferromagnetic pipes An electric current comprising a plurality of harmonic components is passed through the pipe under test, a magnetic field produced by it outside the pipe is measured, a spectrum of the electric current is measured, a spectrum from measured magnetic field data is als... | 04/27/2004 |
| 6686752 | Wear indicator for refractory linings A vessel, as for a cyclone separator, includes a continuous electrical conductor embedded in the wall of the vessel for sensing when the lining has eroded.... | 02/03/2004 |
| 6628111 | Method and apparatus for corrosion sensing A corrosion sensor for use within a fluid flow path includes a sensing element and circuitry coupled to the sensing element for detecting corrosion of the sensing element. Another embodiment of a corrosion sensor for use within a fluid flow path comprises... | 09/30/2003 |
| 6624637 | Device for measuring the concentrations in a measuring liquid The invention relates to a device for measuring the concentration of ions, notably of hydrogen ions, in a measuring liquid using at least one ion-sensitive field effect transistor which is integrated into an electric circuit within the device in such a wa... | 09/23/2003 |
| 6621263 | High-speed corrosion-resistant rotating cylinder electrode system A high-speed corrosion-resistant rotating cylinder electrode test apparatus for monitoring of corrosion rates of metals includes an electrochemical/permeation cell body adapted to contain a fluid whose corrosive effect is to be monitored, the cell body ha... | 09/16/2003 |
| 6590403 | Material regression sensor A material regression sensor and a method of measuring the regression of a material in which the regression sensor includes spaced electrically conductive legs, and electrically conductive sensor element position between the legs and measurement leads ele... | 07/08/2003 |
| 6556001 | Highly time resolved impedance spectroscopy A highly time resolved impedance spectroscopy that enhances the measurement of the dynamics of non-stationary systems with enhanced time resolution. The highly time resolved impedance spectroscopy includes an optimized, frequency rich a.c., or transient, ... | 04/29/2003 |
| 6478948 | Method of monitoring and controlling corrosion of furnace boiler tubes A method for monitoring and reducing corrosion in furnace boiler tubes measures electrochemical noise associated with corrosion mechanisms while corrosion is occurring at the surface of the tubes as they are exposed to combustion products. This noise is d... | 11/12/2002 |
