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| Number | Title | Issue Date |
| 7966889 | Method of measuring strain in a flex hose or other flexible member A method of detecting excessive strain in an elongated flexible member comprising: (a) applying at least one strain-detecting strip to the flexible member in an area that will be subject to bending in installation or use; (b) installing the flexible member in place;... | 06/28/2011 |
| 7921727 | Sensing system for monitoring the structural health of composite structures A sensing system for use in monitoring the structural health of a structure such as a polymeric matrix composite structure is provided. The system includes a sensor formed from a conductive ink containing carbon nanofibers and a polymeric resin, and a data acquisiti... | 04/12/2011 |
| 7334485 | System, method and computer-readable medium for locating physical phenomena A method, system and computer product for detecting the location of a deformation of a structure includes baselining a defined energy transmitting characteristic for each of the plurality of laterally adjacent conductors attached to the structure. Each of the plural... | 02/26/2008 |
| 7310870 | Method for forming an annular magnetostrictive coat on an outer peripheral surface of a rotational shaft of magnetostrictive torque sensor For forming an annular magnetostrictive coat on an outer peripheral surface of a rotational shaft associated with a magnetostrictive torque sensor, a magnetostrictive-coat forming method comprises a step of fitting a cylindrical masking jig over the outer peripheral... | 12/25/2007 |
| 7278369 | Temperature indicator using thermochromic materials A temperature indicator for a rubber article comprises a thermochromic material, wherein the thermochromic material is a component of a rubber article selected from the group consisting of tires, belts and hoses. A rubber article containing a temperature indicator i... | 10/09/2007 |
| 7278324 | Carbon nanotube-based sensor and method for detection of crack growth in a structure A sensor has a plurality of carbon nanotube (CNT)-based conductors operatively positioned on a substrate. The conductors are arranged side-by-side, such as in a substantially parallel relationship to one another. At least one pair of spaced-apart electrodes is coupl... | 10/09/2007 |
| 7244500 | Smart coating system An active coating system capable of collecting, analyzing, managing and adapting to data and/or its environment in real time. An exemplary embodiment of our inventive active coating system is corrosion resistant and includes a flexible sensor layer, a switch layer a... | 07/17/2007 |
| 7225681 | Statistical method for identifying microcracks in insulators One embodiment of the invention is a method for evaluating a material such as low-k dielectric, by a stress-generating test tool such as a needle. The evaluation object is shaped as a stack of adhering layers: low-k dielectric, first metal (preferably copper), barri... | 06/05/2007 |
| 7194900 | Collision reaction force measurement apparatus A collision reaction force measurement apparatus has a collision surface receiving a collision of a portable electronic device and a measurement part measuring a collision reaction force occurring when the portable electronic device makes the collision against the c... | 03/27/2007 |
| 7190440 | Controlling compressive force using pressure sensitive film A film is placed between contacting surfaces in an assembly. The film has an optical property responsive to pressure. A compressive force is applied to the contacting surfaces to generate an initial pressure pattern. The film is removed from between the contacting s... | 03/13/2007 |
| 7167009 | Method and apparatus for determining electrical properties of structures A method and apparatus for determining an electrical property of a structure. The method involves creating a model of an electrical property of a structure and measuring the electrical property of the structure between at least two of a plurality of locations. The m... | 01/23/2007 |
| 7127950 | Method for determining a surface contact force A method of measuring a load on a surface produced by a contact force. An elastic film or coating is located on a supporting surface to provide an indication of normal and tangential or shear forces applied to the surface. A thickness measurement, corresponding to a... | 10/31/2006 |
| 7121155 | Pressure indicating structure A pressure indicating structure comprising (1) a translucent or transparent sheet including reflective structure defining at least a portion of a second surface of that sheet for reflecting back through a first opposite surface of the sheet light entering the sheet ... | 10/17/2006 |
| 7086291 | Overstress indication Devices and their subassemblies typically undergo stresses during manufacturing and testing processes and during general use. To provide visual indication of stress or strain levels endured, a preferred embodiment includes frangible material deposited on particular ... | 08/08/2006 |
| 7052174 | Device for determining changes in dimension due to temperature fluctuation An apparatus for non-destructively testing the response of a specimen to temperature change. An embodiment temperature cycles a specimen, such as a wet mortar beam, dynamically measuring change in dimension and the temperature of the specimen during the cycle. Among... | 05/30/2006 |
| 7043962 | Sheet material type detector A sheet material type detecting method for detecting a sheet material type has the steps of applying tension to at least a part of a sheet material, bounding an impact applying part on the part applied with the tension, a period detecting step of determining a perio... | 05/16/2006 |
| 7032457 | Method and apparatus for dielectric sensors and smart skin for aircraft and space vehicles A new family of multifunctional smart coatings based on diamond-like atomic-scale composite materials which can provide a real-time control of the surface stress distribution and potentially dangerous stress diagnostic for the most critical parts of flying vehicles.... | 04/25/2006 |
| 7021153 | Measuring device A measuring device (1; 21; 33) for controlling an installation torque of a fastening element (4; 32) and securable to engagement means (3; 35) of the fastening element (4; 32), includes an indicator (5; 24) for a visual display of ... | 04/04/2006 |
| 6993947 | Device and method for calibrating a multiple-roller flattener A metal measurement plate (5), having a size suitable for being placed between the set of upper rolls and the set of lower rolls of the leveler, has positioning means (60, 61, 62) for positioning it with respect to the rolls in the leveling direction, ... | 02/07/2006 |
| 6941818 | Equipment for disclosing pressure The invention relates to equipment such as for detecting and providing visual confirmation of pressure thereon, e.g. from an impact, which comprises an article having a sandwich construction with a pressure-disclosing layer (3) comprising a liquid crystal, th... | 09/13/2005 |
| 6939826 | Product authentication Product package, comprising a data storage device, packaging material, and an authentication system. The authentication system comprises first and second coatings coated on the storage device and the packaging material. One of the coatings comprises chromogenic micr... | 09/06/2005 |
| 6766696 | Coating adhesion strength and shear strength measuring apparatus Coating adhesive strength and shear strength measuring apparatus for measuring adhesive strength and shear strength of a coating of a test piece including a vertical pressure sensor linked at one end to a guide shaft which is movable in vertical and parallel directi... | 07/27/2004 |
| 6668661 | Pressure distribution image analysis process A method of analyzing force on a surface is described including providing a pressure-sensitive medium, applying the force to the medium, determining any change in the medium as a result of the applied force, correlating the change in the medium with a pre... | 12/30/2003 |
| 6609865 | Color pressure-sensitive fastener A color pressure-sensitive fastener capable of providing a visual indication of a pressure threshold applied to the fastener is disclosed. The fastener includes a fastening portion which is actuated to fasten by way of application of a sufficient actuatin... | 08/26/2003 |
| 6499355 | Elongation and cracking testing and optical characterization of small-size coatings and materials This invention relates to methods for testing elongation and cracking of coating arrays. The method includes simultaneously applying an elongating force to each of a plurality of coatings, and monitoring the cracks and thickness decrease in each coating. ... | 12/31/2002 |
| 6476406 | Devices equipped with tribostimulable storage phosphors A device built-in in a housing and capable to determine a pressure force in a quantitative way has been provided, the device including a storage phosphor panel or plate having storage phosphors essentially having tribostimulable properties, thereby provid... | 11/05/2002 |
| 6477447 | Methods to generate numerical pressure distribution data for developing pressure related components A method of detecting surface pressure distribution of a wafer being processed by a CMP (Chemical Mechanical Polishing) process; more specifically, the invention relates to a method of detecting pressure distribution of a wafer surface by employing pressu... | 11/05/2002 |
| 6474173 | Pressure sensitive paint system control The present invention provides an apparatus, system and method which enables a determination of pressure on a surface which is coated with a pressure sensitive paint which, when flashed with light, exhibits return light with a decay time constant as a fun... | 11/05/2002 |
| 6460417 | Formability testing of small-size coatings and materials This invention relates to methods for testing elongation and cracking of coating arrays. The method includes simultaneously applying an elongating force to each of a plurality of coatings, and monitoring the coating integrity including cracks and thicknes... | 10/08/2002 |
| 6327030 | System, method, and coating for strain analysis The subject invention relates to a strain-sensitive coating, a strain measurement system, and a method to determine strains on substrate materials. In a preferred embodiment of the subject invention, the system includes a luminescent strain-sensitive coat... | 12/04/2001 |
| 6308576 | Method for determining stress effect on a film during scrubber clean A method for determining stress effects, or stress endurance of a film layer coated on a wafer during a scrubber clean process is disclosed. In the method, a wafer having a film layer coated on top is held in a stationary position while a high pressure wa... | 10/30/2001 |
| 6170337 | Method and device for measuring permanent length deformations of materials A method for measuring permanent length deformations in materials includes determining a change of an initial distance between two measuring points on the material surface. A first pair of impressions is formed on a portable impression body that correspon... | 01/09/2001 |
| 5920017 | Thermal input control and enhancement for laser based residual stress measurements using liquid temperature indicating coatings An improved method for measuring residual stress in a material comprising the steps of applying a spot of temperature indicating coating to the surface to be studied, establishing a speckle pattern surrounds the spot of coating with a first laser then hea... | 07/06/1999 |
| 5916160 | Real-time imaging contact gauge and visual feedback interactive apparatus including same A real-time imaging contact gauge for indicating the distribution of contact pressure over a surface includes a transparent base panel, a pressure-transmitting member at one face of the transparent base panel for receiving the contact pressure to be indic... | 06/29/1999 |
| 5918283 | Coating for thermoelasticity A first aspect of the invention relates to an epoxy resin coating used in reflection photoelasticity, which is "black" in the infra-red part of the spectrum; another aspect to the use of an epoxy resin as a coating on at least one surface of a body to be ... | 06/29/1999 |
| 5864393 | Optical method for the determination of stress in thin films A method and optical system is disclosed for measuring an amount of stress in a film layer disposed over a substrate. The method includes steps of: (A) applying a sequence of optical pump pulses to the film layer, individual ones of said optical pump puls... | 01/26/1999 |
| 5817945 | System and method of determining strain A system (50) for determining strain includes: a stimulating light source (54, 56); a device (64) for placing stress on an object (58); a number of local strain gauges (66) attached to the object (58); and an image capturing device (62, 64). A controller ... | 10/06/1998 |
| 5652395 | Bending sensor A bending sensor of the invention is formed of a flexible segment, a pressure-sensitive electrically-conductive resin film formed on the flexible segment, and a pair of electrodes to be attached to the resin film. The resin film is made of pressure-sensit... | 07/29/1997 |
| 5625153 | Method of non-destructively estimating life of ceramic member A method of estimating non-destructively the life expectancy of ceramic members, at least a surface layer of which is made of ceramics, is disclosed. The method comprises measuring a variation in at least one of physical characteristics of said ceramic me... | 04/29/1997 |
| 5614680 | Apparatus for monitoring the fatigue strength of structures An apparatus for monitoring the fatigue strength of a structure comprises a longitudinal rib which is attached or integrated to the surface of the structure. The rib has a plurality of transverse notches of differing depths, each of the notches having a r... | 03/25/1997 |
