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| Number | Title | Issue Date |
| 8156820 | Device and method for tightening a nut placed on a threaded end, and assembled washer and nut for such a device Device (10, 20, 30) and method for tightening a bolt (2) or a nut (12) threaded on its end, which end extends through at least a first body (3) and screws into a hole (5) in a second body (4) or extends through the second bo... | 04/17/2012 |
| 8127620 | Load sensor-containing actuator Various means for detecting the load on the bottom of a bed are proposed, but they have various problems, since the load sensor is provided separately from a bed or installed outside a bed. This invention solves the abovementioned problems by a load sensor-co... | 03/06/2012 |
| 8037772 | Thread forming fasteners for ultrasonic load measurement and control An ultrasonic load measurement transducer (14) is mated with a thread-forming fastener (12) to provide a load indicating thread-forming fastener (10) that can be used for precise and reliable assembly of critical bolted joints, such as those in ... | 10/18/2011 |
| 8033181 | Probe for fastener identification and ultrasonic load measurement A system is provided for both reading an optical identification mark, such as a bar code, on a fastener and for making ultrasonic load measurements in the fastener using a single probe for use during fastener installation with assembly tools and for the inspection o... | 10/11/2011 |
| 8028585 | Load indicating member with identifying element A load indicating member is provided with an identifying element which can be accessed and used to determine ultrasonic measurement parameters specific to the load indicating member to provide more precise and more reliable load measurements by compensating for diff... | 10/04/2011 |
| 8024979 | Indicating fastener loading An amplified indication of the elongation of a fastener is provided for determining instantaneous loading conditions of a fastener. A load indicator is couplable to a fastener for instantaneous load measurement and includes a housing defining a fastener interface co... | 09/27/2011 |
| 7966888 | Screw fastener A screw fastener includes a first screwdriver including a first bit configured to fasten a first screw by engaging with a recess of the first screw, and a first motor configured to rotate the first bit, a second screwdriver including a second bit configured to faste... | 06/28/2011 |
| 7946179 | Thread forming fasteners for ultrasonic load measurement and control An ultrasonic load measurement transducer is mated with a thread-forming fastener to provide a load indicating thread-forming fastener that can be used for the precise and reliable assembly of critical bolted joints, such as those in the automobile and aerospace ind... | 05/24/2011 |
| 7934428 | Residual torque analyzer A system for detecting fastener movement and measuring a residual torque in a fastener joint, including a device for applying torque to a stationary fastener in a tightened state and measuring torque and angle of rotation. The device includes a sensing system that h... | 05/03/2011 |
| 7836774 | Strain detector having a column-shaped strain generator It is aimed to provide a strain detector having a fewer number of mounting parts and high operation efficiency and usability. The strain detector is provided with a cylindrical strain generator to be strained upon receiving a load, a resistor element which is arrang... | 11/23/2010 |
| 7823458 | System for dynamically controlling the torque output of a pneumatic tool Pneumatic tightening tools can be used for high speed assembly of critical bolts to precise loads by dynamically controlling the output power of the pneumatic tool during a tightening cycle using an electronically controlled air pressure regulator to reduce the tigh... | 11/02/2010 |
| 7819017 | Dynamometer element A dynamometer element including a bolt on which a diaphragm is mounted, the diaphragm being surrounded by a sleeve, to which a force component to be measured is applied perpendicularly to the longitudinal direction of the bolt, the sleeve being spaced from the bolt ... | 10/26/2010 |
| 7762142 | Integrated fastener-sensor arrangement Characteristics of a multi-layer structure are detected, such as for detecting mechanical and/or corrosive damage of the multi-layer structure. In an example embodiment, an integrated in-situ sensor device senses characteristics of a multi-layer structure during ope... | 07/27/2010 |
| 7735374 | Equipment comprising at least one rotary member and means for measuring vibrational frequencies of said member to determine its wear condition, corresponding control unit and method A screwing equipment that comprises at least one rotary member mounted in a tool body and capable of producing at least one vibrational frequency representing a wear condition of said rotary member(s). Such screwing equipment further comprises means for measuring sa... | 06/15/2010 |
| 7703330 | Power tool A power tool includes a driving unit for performing screw tightening operations; a motor for rotatably driving the driving unit; a trigger switch for turning on and off the motor; and a control circuit, accommodated in a main body of the power tool, for monitoring t... | 04/27/2010 |
| 7665366 | Screw tightening control system and screw tightening control method The screw tightening control system includes plural screw tightening apparatuses, and a control apparatus that sets a synchronization point after completion of changing tightening torques of the plural screw tightening apparatuses in a current step, and starts chang... | 02/23/2010 |
| 7650792 | Load indicating member with identifying element A load indicating member is provided with an identifying element which can be accessed and used to determine ultrasonic measurement parameters specific to the load indicating member to provide more precise and more reliable load measurements by compensating for diff... | 01/26/2010 |
| 7650791 | System and method for automated execution of bolted joints A tightening method yielding a precise control of the resulting clamping force, in which the tightening operation is performed in two steps, and the stress level is always kept within the limits of the elastic portion of the stress×strain curve. The method employs ... | 01/26/2010 |
| 7644627 | Thread forming fasteners for ultrasonic load measurement and control An ultrasonic load measurement transducer is mated with a thread-forming fastener to provide a load indicating thread-forming fastener that can be used for the precise and reliable assembly of critical bolted joints, such as those in the automobile and aerospace ind... | 01/12/2010 |
| 7628079 | Method for measuring shear load of fastening tool A method for measuring shear load of a fastening tool, which comprises the steps of: positioning an optical fiber sensor on a surface of a fastening tool to be subjected to a measurement, or within the tool but near the surface thereof, so that the optical fiber sen... | 12/08/2009 |
| 7520174 | Method and apparatus for indicating a load A load indicating insert visually displays fastener loading during tightening and use of a fastener. First and second levers are positioned by a connective cartridge substantially within a fastener bore to provide a compound. amplified indication of loading as a fun... | 04/21/2009 |
| 7484420 | Fastener assembly and method A fastener assembly and method are provided. In one embodiment, the fastener assembly comprises a nut compatible with a threaded shaft. A rotation indicator having at least one indicator extension is attached to the nut. At least one protruding structure extends fro... | 02/03/2009 |
| 7469592 | Hydraulic threaded bolt clamping device and method for tightening large screws by means of said hydraulic threaded bolt clamping device A hydraulic threaded bolt clamping device for tightening and releasing threaded bolts has a pressure medium supply connected to a pressure medium connector. A cylinder rests against a machine part that is to be clamped and a periodically pressure-loaded piston is gu... | 12/30/2008 |
| 7467556 | Thread forming fasteners for ultrasonic load measurement and control An ultrasonic load measurement transducer is mated with a thread-forming fastener to provide a load indicating thread-forming fastener that can be used for the precise and reliable assembly of critical bolted joints, such as those in the automobile and aerospace ind... | 12/23/2008 |
| 7441462 | Load indicating member with identifying element A load indicating member is provided with an identifying element which can be accessed and used to determine ultrasonic measurement parameters specific to the load indicating member to provide more precise and more reliable load measurements by compensating for diff... | 10/28/2008 |
| 7426870 | Torsional fixing device, especially for the housing of a measuring transducer For limiting twist of a measurement transmitter housing relative to a sensor element, onto which the measurement transmitter housing is screwed, axial barriers are provided, so that the axial position of the measurement transmitter housing relative to the sensor ele... | 09/23/2008 |
| 7415888 | Safety device particularly for multiple wheel nuts A safety device (10) comprises a plurality of wheel nut position indicators (30) captively but rotatably mounted in a holder (12). The position indicators are attachable to respective wheel nuts (40) by means of fastener covers (50... | 08/26/2008 |
| 7412898 | Load sensing system including RFID tagged fasteners A fastener or other structural component for wireless sensing of applied tensile load. The fastener includes an elongate body with a bore that extends within the body. A grounding pin is positioned within the bore and attached to the body within the bore. The fasten... | 08/19/2008 |
| 7395720 | Apparatus for securing a measuring sensor on a pipeline An apparatus for securing a measuring sensor on a pipeline. The mounting-housing is positionable on the pipeline, with the mounting-housing being embodied, and coordinated with the measuring sensor, in such a manner that a force, which acts on the mounting-housing i... | 07/08/2008 |
| 7377178 | Strain detector having a displaceable insulating substrate The present invention provides a strain detector improved in output characteristic, in which no internal stress is generated in strain resistance elements even with it fixed on a fixing member. The strain detector is configured in that a detection hole is provided n... | 05/27/2008 |
| 7373846 | Load cell attachment structure This load cell attachment structure includes a male screw which is formed on a load sensing part of the load cell, a nut which attaches the load cell to the attachment plate by engaging with the male screw, and a wave washer which is disposed between the attachment ... | 05/20/2008 |
| 7360435 | Ultrasonic control of bolt tightening Tightening of a bolt is controlled by monitoring the change in round trip time of propagating longitudinal ultrasonic waves through the bolt and the reflection of these waves at the end of the bolt. The round trip time of the longitudinal waves through bolt is conti... | 04/22/2008 |
| 7360436 | Reusable preload indicating washer assembly A reusable washer assembly apparatus includes a generally ring-shaped flexible inner member, a generally ring-shaped outer member, a distal washer member, and a proximate washer member. The outer member is disposed around the inner member and is adapted for at least... | 04/22/2008 |
| 7357628 | Clamping force sensor system A clamping force sensor system includes a clamping force sensor device, a signal-converting program carrier, and an output device. The clamping force sensor device includes a body mounted to a tie bar of a forming machine. The clamping force sensor device further in... | 04/15/2008 |
| 7356446 | Method and apparatus for analyzing multi-channel chromatogram A method for analyzing a multi-channel chromatogram is realized for accurately resolving overlapping peaks on a multi-channel chromatogram to permit analysis of the composition of a sample. First, components of overlapping peaks are specified. A data matrix Dij is d... | 04/08/2008 |
| 7350419 | Control device for non-positive connections The invention relates to a control device for non-positive connections, especially screw connections. The device includes two force application elements and a measuring element arranged therebetween. The measuring element is at least partially provided with a layer ... | 04/01/2008 |
| 7350420 | Device for measuring pre-stressing force in a bolt-nut connection A device for measuring pre-stressing force in a bolt/nut connection, comprising a screw nut that is provided with a sensor means for sensing the pre-stressing force. The nut (1) is of standard design, and the nut itself constitutes a sensor body in that, in t... | 04/01/2008 |
| 7334648 | Rotary impact power tool A impact power tool includes a motor rotating a drive shaft, an output shaft holding a tool bit, and a hammer coupled to the drive shaft. The hammer is rotatable together with the drive shaft and is engageable with an anvil fixed to the output shaft so as to give a ... | 02/26/2008 |
| 7328619 | Phased array ultrasonic NDT system for fastener inspections An ultrasonic probe suited for testing the integrity of sheet metal surfaces around fastener openings is provided with means to center the probe over such openings. Both a mechanical centering rod and an electronic display assist the user in centering such probe. On... | 02/12/2008 |
| 7324007 | Instrumented rock bolt, data logger and user interface system A rock bolt includes a hollow body and a gap along a length of the hollow body. At least one strain gauge is affixed to an inner surface of the rock bolt and is accessible from the gap. The rock bolt may include a data logger within the hollow body and coupled to re... | 01/29/2008 |
