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| Number | Title | Issue Date |
| 7574927 | Tensiometer A tensiometer for measuring thread tension, provided with a bending element fixed at one end and tensioned at the other end by the thread, at least one sensor element and damping device for oscillating the bending element. The damping device has at least one mass da... | 08/18/2009 |
| 7536924 | Flexure-based dynamometer for determining cutting force A high frequency flexure-based dynamometer for measuring vibrations to use in determining cutting forces in a tool is disclosed. The dynamometer device may operate within a pre-selected high frequency range while measuring cutting forces less than about 1 N. The dyn... | 05/26/2009 |
| 7441464 | Strain gauge sensor system and method A strain gauge sensor system and method for measuring the strain in a member, such as a fiber rope, has a sensor target assembly having a plurality of magnets carried spaced apart by individual gauge lengths along the member. Position and trigger sensor devices are ... | 10/28/2008 |
| 7326133 | Racket assembly that warns of a fatigued string condition A racket assembly having a racket head that is supported by a handle. A string is strung across the racket head forming a string face. The string used in the string face is statistically likely to fail after the string face has been impacted a precalculated number o... | 02/05/2008 |
| 7305883 | Chemical micromachined microsensors The present invention provides sensors based on micromachined ultrasonic transducer technology. The sensors preferably include a plurality of sensor elements, but may include only one sensor element. Arrays of sensors are also provided. Sensor elements include a fun... | 12/11/2007 |
| 7303049 | System for people with limited mobility or with elevated risk of falling A system for people with limited mobility or with elevated risk of falling. Embodiments of the invention include internal walls that do not extend to the ceiling, a track system, a joist which is able to move on the track system, a carriage which is able to move on ... | 12/04/2007 |
| 7185546 | Systems and methods for measuring belt tension Systems and methods for measuring belt tension in a semiconductor processing system include measuring a natural sound or an acceleration of the belt in the semiconductor processing system; digitizing the natural sound or the acceleration; determining the frequency a... | 03/06/2007 |
| 7171849 | Sensor module The invention relates to a sensor module in a flexible housing with integrated transmission means. A possible application of such a flexible sensor module would be the use as transponder-based tire pressure measuring system. Here, the complete module could be vulcan... | 02/06/2007 |
| 7143657 | Planarity-measuring roller for steel strip A planarity-measuring roller for metallic strip has a plurality of force sensors set in respective outwardly open recesses in a roller body with respective covers overlying the sensors in the recesses, generally flush with an outer surface of the body, and spaced by... | 12/05/2006 |
| 7140254 | Apparatus for generating and measuring bending vibration in a non-ferromagnetic pipe without physical contact An apparatus for generating and measuring bending vibration in a pipe buried underground or a pipe covered by insulating materials is disclosed. There is provided an apparatus for generating and measuring bending vibration in a non-ferromagnetic pipe without physica... | 11/28/2006 |
| 7098673 | Capacitive measuring system The invention relates to a measuring device including at least one measuring probe, sequentially applying a controlled supply voltage between the measuring probe and a reference element, and integrating accumulated electric charges on the measuring probe. The device... | 08/29/2006 |
| 7043989 | Method and apparatus for testing installation quality in a grouted anchor system The invention concerns a method of testing the installation quality of a grouted anchor system comprising at least one tendon anchored by grout in a hole in a surrounding mass. The system typically includes a group of roof bolts (10, 12) each having a tendon ... | 05/16/2006 |
| 7035718 | Method and System for detecting and reducing draft tube pressure fluctuations A method and system to reduce vibration in a turbine-generator including measuring a magnitude of radial vibration of a turbine shaft with at least one vibration sensor configured to generate a vibration signal indicative of vibration frequency; measuring a generato... | 04/25/2006 |
| 6992423 | Vehicle tire and system for generating electrical energy in the tire A system for generating electrical energy in a tire for a vehicle includes at least one piezoelectric element that generates electrical energy when deformed. The at least one piezoelectric element is associated with the tire and is elongate. The at least one piezoel... | 01/31/2006 |
| 6951143 | Three-axis sensor assembly for use in an elastomeric material According to a first aspect of the preferred embodiment, a three-axis sensor assembly for use in an elastomeric material includes a first pair of sensors disposed along a first pair of respective axes that intersect, the first sensors being adapted to detect a force... | 10/04/2005 |
| 6948378 | Method and apparatus for measuring tension in a moving web An apparatus and method for the non-contact measurement of tension in a moving web material are provided herein. In one embodiment the apparatus includes a non-contacting tension-sensing element, such as an airfoil, disposed transverse to the machine direction of th... | 09/27/2005 |
| 6928882 | Method and device for determining the tension or the tensile stress in a metal strip A method and device for determining the tension, or tensile stress in a metal strip between two bearing points, e.g., between two roll stands, between a roll stand and a coiler, in a breakdown stand, or in front of, or behind a deflection roll. The excursion of the ... | 08/16/2005 |
| 6925881 | Time shift data analysis for long-range guided wave inspection A method of analysis long range guided wave data reflected from defects and geometric features such as welds in a structure. The method involves acquiring two sets of data, and time shifting one set of data relative to the other. Data points that match in time after... | 08/09/2005 |
| 6876715 | Measurement system of torsion vibration for reactor internal pump Object of this invention is to provide an axial torsional vibration measurement device of the reactor internal pump capable of measuring the axial torsional vibration easily. The vibration detector 2 that detects vibration in the radial direction, and the sou... | 04/05/2005 |
| 6751281 | Measurement system of torsion vibration for reactor internal pump Object of this invention is to provide an axial torsional vibration measurement device of the reactor internal pump capable of measuring the axial torsional vibration easily. The vibration detector 2 that detects vibration in the radial direction, and the sou... | 06/15/2004 |
| 6679123 | Torque measuring piezoelectric device and method A method and apparatus are described for non-contact measurement of torque applied to a torque-bearing member such as a shaft. The method involves the use of a piezoelectric transducer mechanically coupled to the shaft for rotation therewith, and having e... | 01/20/2004 |
| 6637276 | Tire sensor and method A tire sensor assembly that is embedded in an elastomeric tire at a particular radial depth inwardly from a contact patch of the tire includes a flexible generally pyramid-shaped body and a pair of first strain sensors disposed on first opposed faces of t... | 10/28/2003 |
| 6628124 | Electrocapacitive force measuring apparatus A sensor unit is formed by a single integral body obtained by coupling a resiliently deforming portion with a base portion without interposing a soft material therebetween, and a force applied to a probe secured to a front end of the resiliently deforming... | 09/30/2003 |
| 6619135 | Force sensor having a substrate for measuring deformation of the substrate A force sensor having a substrate for measuring forces is provided, on which substrate a first path and a second path for travel of acoustic surface waves are arranged. The two paths are arranged essentially parallel to one another and their lengths are d... | 09/16/2003 |
| 6615676 | Power steering belt tensioning apparatus and method A method and system for tensioning a belt, the system including a tensioning measuring head, a controller, and an air impact gun. The tension measuring head includes a vibration sensor and a belt striker. The controller activates the belt striker and rece... | 09/09/2003 |
| 6611178 | Nanometer-order mechanical vibrator, production method thereof and measuring device using it There are provided a stable and highly sensitive nanometric mechanical oscillator having a considerably high detection resolution that enables detection of variation in force or mass on the nanometer order, as well as a method of fabricating the same, and... | 08/26/2003 |
| 6595057 | Golf club head with a high coefficient of restitution The present invention relates to a golf club head provided with a face and a body. The face has a central zone and a intermediate zone adjacent and surrounding the central zone. The central zone has a first flexural stiffness and the intermediate zone has... | 07/22/2003 |
| 6588088 | System and method for automatically tensioning wires and for retaining tensioned wires under tension A wire tensioning apparatus and method tensions one or more wires by moving the tensioning function from a wire module to an apparatus external to the wire module. Externally to the wire module, a wire is attached to a fixed end and a movable end. Tension... | 07/08/2003 |
| 6546822 | Seat occupant sensor device A seat occupant sensor device for detecting whether or not an occupant is seated on a seat is made up of a pressure sensitive switch including a pair of sensor portions and a connecting portion, with each of the sensor portions being formed as an integrat... | 04/15/2003 |
| 6523423 | Force sensor A force sensor includes: a supporting base having a hollow portion, a flexible plate having at least one detecting element and extending across over the hollow portion, and an operating member suspended over the hollow portion by the flexible plate. Incli... | 02/25/2003 |
| 6487764 | Method of making a steel cable reinforced conveyor belt This invention relates to a method of making a steel cable reinforced conveyor belt while monitoring the tensions of all the cables.... | 12/03/2002 |
| 6456898 | Press monitoring and control system A press monitoring and control system includes a press machine, a press configuration module and a press controller. The press machine has a lower die coupled to an upper die, wherein the lower die includes a top surface supporting a strip of material to ... | 09/24/2002 |
| 6356848 | Method and apparatus for measuring power output and for measuring tension and vibrational frequency of a elongate flexible member The invention broadly provides a method and apparatus for measuring the power output of one powering a vehicle or other system driven by the elongate flexible member such as chain. In a preferred embodiment described, the vehicle is a bicycle. The method ... | 03/12/2002 |
| 6199021 | Method and apparatus for measuring power output of one powering a chain driven vehicle The invention broadly provides a method and apparatus for measuring the power output of one powering a chain driven vehicle. In a preferred embodiment described, the vehicle is a bicycle. The method of the invention comprises measuring the speed and tensi... | 03/06/2001 |
| 6155121 | V-belt noise tester and testing method A V-belt is mounted on a first fixed conical plate and second fixed conical plate of a lower unit, and an upper unit is made to descend. A first movable conical plate and second movable conical plate are installed in the upper unit, and the V-belt is grip... | 12/05/2000 |
| 6142023 | Method and apparatus for applying a predetermined proof load to a cable and measuring the resultant cable length A system for applying a predetermined proof load to a control cable and measuring the resultant cable length thereof includes a motor (32) which, under the control of a controller (14) drives an actuator (28) which, in turn, controllably displaces an end ... | 11/07/2000 |
| 5877431 | Apparatus for measuring tension of belt An apparatus for measuring a tension (T) of a belt in a spanned state includes a vibration detector (1A) for detecting a vibration of the belt, a vibration frequency arithmetic unit (2A) for arithmetically determining a vibration frequency on the basis of... | 03/02/1999 |
| 5821430 | Method and apparatus for conducting in-situ nondestructive tensile load measurements in cables and ropes An apparatus and method for the non-contact measurement of tensile loading (or tension) in ferromagnetic materials, particularly wire ropes, cables, and strands. The magnetostrictive effect is used to measure wave propagation properties within such materi... | 10/13/1998 |
| 5750894 | Measurement of tension using natural frequency of vibration A method of determining the tension in a guy wire or other flexible member. The first 15 natural frequencies for the design tension and tensions at 1 percent increments above and below the design tension are calculated. The actual first 15 natural frequen... | 05/12/1998 |
| 5731528 | Rope tension measuring apparatus for use with an elevator A rope tension measuring apparatus for measuring rope tension of a plurality of main ropes that suspend an elevator car and a counterweight and adjustment quantities of tension adjusting springs for the main ropes. The apparatus comprises a portable measu... | 03/24/1998 |
