| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 411008000 | WITH MEANS TO INDICATE APPLICATION OF PREDETERMINED STRESS-STRAIN | 31 |
| 20100296892 | Nut looseness indicator and dust cap - This nut torque indicator cover includes a cover piece that is joined to an indicator piece. It is fastened to a nut/bolt assembly primarily by pressing it down onto and over the exposed threads of the bolt so that the indicator piece registers with the hex portion of the nut. A snap fit design is incorporated into the nut torque indicator cover such that the cover piece and indicator piece can rotate relative to each other. The cover piece fastens securely to the external threads of the bolt providing protection to the threads, while the indicator piece, secured by the hex flats of the nut, indicates the nut circumferential position, allowing an indication of any torque loss. | 11-25-2010 |
| 20110027035 | SELF-TAPPING SCREW - A self-tapping screw is disclosed. The screw includes a shaft which has a first end and an opposing second end with a load-engaging structure, and a thread that extends at least in sections over the length of the shaft. Several wear indicators are provided on the thread. Identifiers are provided on the screw for identifying the wear indicators. | 02-03-2011 |
| 20130129441 | TORQUE LIMITING SOCKET AND METHOD OF USING SAME - In a preferred embodiment, a driver socket is configured to provide a visual indicator on a portion of a locknut upon application of a predetermined torque to the driver socket relative to the locknut. The driver socket has a member which is positioned proximate to the first end, with a portion thereof protruding into an aperture of the driver socket. The member is configured to engage a drive configuration of a locknut in order to apply nut torque to the locknut upon rotation of the drive socket and to form a mark on the drive configuration of the locknut in order to provide a visual indicator on the locknut that the locknut has been subjected to the desired torque during initial assembly. The driver socket is preferably attached to a ratchet arm of a fastening tool which provides a mechanical advantage in applying the desired torque. | 05-23-2013 |
| 20130170921 | Creep Limiting Direct Tension Indicating Washer - A direct tension indicating washer includes a body having a first surface having a protuberance formed thereon; the body having a second surface having an indentation formed opposite the protuberance; and an insert positioned internal to the body, the body and the insert being made from materials of different hardness. | 07-04-2013 |
| 20130302106 | LOAD-INDICATING WASHER - A direct tension indicator ( | 11-14-2013 |
| 20140079504 | DEVICE FOR DETECTING RELATIVE MOVEMENTS IN A VEHICLE - A device is provided for detecting relative movements in a component of a vehicle. The device includes an RFID transponder, which has a first part and a second part as well as a predetermined breaking point between the first part and the second part. The RFID transponder is attached such that relative movements and/or positional changes of this component lead to a fracture of the RFID transponder at the predetermined breaking point. | 03-20-2014 |
| 20150063940 | ROTATION INDICATING DEVICE, PARTICULARLY FOR ALLEN BOLTS - For indicating rotational displacement between an Allen bolt having a bolt head ( | 03-05-2015 |
| 20150078855 | Lug nut locking device - A lug nut locking device, which provides a visual indication of loosening of one of a pair of adjacent nuts includes a locking strip for extending between the nuts, rings on the ends of the strip for mounting the strip on the nuts, teeth in the rings for resisting nut loosening; and a pair of flags with annular bodies for mounting on the nuts beneath the strip, the flag bodies having internal teeth for engaging the nuts, whereby rotation of one of the nuts causes corresponding rotation of its associated flag providing a visual indication that the nut is loosening. | 03-19-2015 |
| 20160146149 | TIGHTENING STRUCTURE FOR CYLINDER HEAD BOLT - A cylinder head bolt inserted into a cylinder head is threadingly engaged with an engine casing comprised of a cylinder and a crankcase to tighten the cylinder head and the engine casing firmly together. Between a rotation operating part, which is provided in a head of the cylinder head bolt, and an upper surface of the cylinder head, a plain washer and a spring member placed thereabove are interposed. The spring member is capable of exerting an axially acting spring force. A first frictional resistance between the rotation operating part and the spring member is so chosen to be lower than a second frictional resistance between the spring member and the plain washer and a third frictional resistance between the plain washer and a bearing surface on the cylinder head. | 05-26-2016 |
| 411009000 | Axially deformable member or portion | 9 |
| 20100014936 | THREADED FASTENER WITH PREDETERMINED TORQUE - The invention relates to a threaded fastener. In particular, the invention relates to a threaded fastener such as a nut or a bolt. In an embodiment of the invention, a threaded fastener in the form of a nut ( | 01-21-2010 |
| 20100054891 | FASTENING APPARATUS AND SYSTEM FOR DETECTING AXIAL FORCE THEREOF - A detecting system of a fastening apparatus that detects an axial force of the fastening apparatus including a bolt or a nut. The detecting system includes an axial force detector including a strain gauge and an IC tag, the strain gauge being provided at a predetermined location to detect an axial force value of the fastening apparatus, and the IC tag being connected to the strain gauge and wirelessly transmitting the detected axial force value and unique identification information. Power is supplied to the axial force detector. A reader reads data transmitted from the axial force detector. | 03-04-2010 |
| 20100284759 | MONITORING FASTENING LOADING - A retrofit system for providing a load indicator on a foundation bolt. The system includes a fastener having a fastener head, gauge length and central fastener bore in the gauge length and head. A datum rod is anchored in the central bore with a free datum rod being moveable longitudinally relative to the fastener head during elongation of the fastener gauge length. An internally threaded fastener portion below the central fastener bore is configured to thread over a foundation bolt. A compression sleeve positioned over the foundation bolt is configured to receive the load indicating fastener therein and to bear the compressive forces of the fastening. Elongation of the gauge length as the fastener is tightened onto the stud is manifest as displacement of the datum rod end, which displacement is measured to provide an indication of fastener loading. | 11-11-2010 |
| 20110085872 | DEVICE FOR INDICATING THE TENSIONING OF A FASTENING MEMBER, SUCH AS A SCREW OR THE LIKE - The invention concerns a device for indicating the tensioning of a fastening member, such as a screw or the like, said device comprising a first portion with a first fastening member receiving aperture; a second portion with a second fastening member receiving aperture in alignment with said first fastening member receiving aperture, and a joining portion connecting said first and second sheet portions allowing the first and second portions are biased towards each other by the head of the fastening member in response to the tightening of said fastening member, wherein the device is provided with irreversible indicator means for indicating that the tension in the elongated fastener during the mounting process has been exposed to a tension exceeded a predetermined tension value, and wherein said irreversible indicator means comprises that said first portion is provided with a distal end portion adapted for sliding and locking engagement with corresponding indicator means provided on the second portion, and that said locking engagement indicates the occurrence of the relative displacement between the first and second portions have exceeded a predetermined value. | 04-14-2011 |
| 411010000 | Deformable washer | 5 |
| 20090269157 | ANCHOR - The invention relates to anchors for fixing an article ( | 10-29-2009 |
| 20150330432 | Direct Tension Indicating Washer With Enhanced Indicating Material And Method Of Manufacturing - A direct tension indicating washer includes a first surface having a protuberance formed thereon; a second surface having an indentation formed opposite the protuberance; an indicating material positioned in the indentation; and a channel leading from the indentation to an outer diameter of the direct tension indicating washer; wherein the indicating material is weather-resistant. | 11-19-2015 |
| 20150377275 | TORQUE INDICATING THREADED MECHANICAL FASTENING SYSTEMS AND METHODS - Threaded mechanical fastening systems and methods are provided that allow the simple deflection of a washer to indicate that a desired minimum torque has been reached or that a desired maximum torque has been exceeded. The method includes providing a threaded connection having a washer, installing the threaded connection so that the washer is supported as a simple beam over a gap, and using an amount of deflection of the washer as a result of torque applied by the threaded connection as an indicator. The torque indicating threaded mechanical fastening system includes a threaded connection and a washer supported as a simple beam over a gap so that the threaded connection, when tightened to a predetermined torque, deflects, in bending, the washer into the gap. | 12-31-2015 |
| 411011000 | Resilient | 2 |
| 20090311066 | DEVICE FOR DISPLAYING THE CORRECT TIGHTENING FORCE FOR A NUT MOUNTED ON A THREADED ROD | 12-17-2009 |
| 20160076573 | Direct Tension Indicator Plate and Assembly - A direct tension indicator plate, washer assembly, and fastener assembly. The plate includes an annular array of circumferentially-spaced legs extending radially outwardly from a hub, wherein each leg includes a foot portion oriented at least partially in a circumferential direction. The washer assembly includes an indicator plate carried by a washer plate having an annular array of protuberances projecting from a surface, a portion of the indicator plate being carried on the protuberances. The fastener assembly includes a fastener having an axially facing surface positioned against an annular portion of an indicator plate to sandwich the annular portion between the axially facing surface and an array of protuberances of a washer plate, wherein, when the fastener is fastened against the washer plate placing the indicator plate in compression with the washer plate, the array of legs are displaced radially outwardly. | 03-17-2016 |
| 411013000 | Color indicator | 8 |
| 20090092457 | FASTENING APPARATUS AND METHOD OF MAKING - The present invention relates to fasteners and more specifically to a fastener adapted to visually indicate tension, and method of making thereof. | 04-09-2009 |
| 20090245966 | CATEGORIZING FASTENERS AND CONSTRUCTION CONNECTORS USING VISUAL IDENTIFIERS - A method of categorizing fasteners and construction connectors by size and type using a color coding system. Each fastener receives a designated and distinct color contained on the surface that is exposed before and after installation. The colors are preselected to define one or more physical properties of the fasteners. A color key is provided to determine the physical properties of the fasteners based on the coloring of exposed portions of the inserted fasteners. Similarly, construction connectors receive a designated and distinct color contained on the surface that is exposed before and after installation. The color represented on the surface of the construction connector is such that the corresponding fastener is the same color. | 10-01-2009 |
| 20110123288 | Direct Tension Multi-Color Indicating Washers - A direct tension indicating washer includes a first surface having a plurality bumps formed thereon; a second surface having a plurality of discrete indentations, each indentation formed opposite one of said protuberances; an indicating material positioned in at least one indentation, the indicating material including an indicating material having a first color and an indicating material having a second color; and a channel leading from the at least one indentation to an outer edge of said direct tension indicating washer. | 05-26-2011 |
| 20110176885 | CATEGORIZING FASTENERS AND CONSTRUCTION CONNECTORS USING VISUAL IDENTIFIERS - A method of categorizing fasteners and construction connectors by size and type using a color coding system. Each fastener receives a designated and distinct color contained on the surface that is exposed before and after installation. The colors are preselected to define one or more physical properties of the fasteners. A color key is provided to determine the physical properties of the fasteners based on the coloring of exposed portions of the inserted fasteners. Similarly, construction connectors receive a designated and distinct color contained on the surface that is exposed before and after installation. The color represented on the surface of the construction connector is such that the corresponding fastener is the same color. | 07-21-2011 |
| 20130064622 | SMART LID FOR SMART BOLTS AND PROBES - The smart lid for smart bolts and probes is an electronic sensor for use with a smart bolt or probe having a color indicator for indicating tension. The smart lid includes a color sensor that provides electrical data corresponding to light received from the color indicator of the smart bolt or probe, a microcontroller that receives electrical data from the color sensor and converts that data to a digital form and compares the data against at least one limit, and provides a digital indication wirelessly to a remote monitor if the at least one limit has been exceeded. In this fashion a warning or emergency condition can be indicated when the tension experienced by the smart bolt is too low or too high. The smart lid may include an electrical power source that scavenges electrical power from ambient electromagnetic fields (EMF) and stores the electrical power in a battery. | 03-14-2013 |
| 20140178145 | DEVICE FOR HANDLING A LOAD - A device for handling a load provided with a thread includes a screw assembly equipped with a gripper and capable of connecting to the load, a first screwing indicator secured to the screw assembly, a second screwing indicator movable in translation relative to the first screwing indicator, and a spring. In particular, the spring is inserted between the first screwing indicator and the second screwing indicator and has an effect of returning the second screwing indicator such that the second screwing indicator abuts against the load, so that a coincidence between the first and second screwing indicator indicates a sufficient screwing of the device onto the load. | 06-26-2014 |
| 20150377274 | FASTENING DEVICE - A fastening device is disclosed. The fastening device has a vertical protrusion for fastening. A horizontal portion and an indicator are used for seating. The horizontal portion extends from the vertical protrusion for providing a clue to indicate that the fastening device is seated correctly. In embodiments, the clue is a color or a texture. In embodiments, a bellow is used with elastomeric properties. When the right load and torque are applied, the bellow covers the horizontal portion such that the color and/or texture of a perspective directed at the horizontal portion appear to be changed. | 12-31-2015 |
| 20160123369 | WITNESS ENABLED FASTENERS AND RELATED SYSTEMS AND METHODS - A fastening device may include a first member configured for forceful engagement with a second member. The first member may include a sensor configured to emit at least a first photo-luminescent signal to a detector when at least a predetermined first torque level is applied to the first member when the first and second members are engaged. | 05-05-2016 |
| 411014000 | Including gauge means | 5 |
| 20080253858 | Screwing device with function of twisting force measurement - A screwing device with a function of twisting force measurement comprises: a screw unit having a head and a shank connected to the head; a twisting force measurement unit installed at the head and having a processor and displaying unit and a sensor for measuring a twisting force applied to the screw unit; the processor and displaying unit serving for calculating a value of the twisting force from the sensor and having a display screen. The sensor is installed at a lateral side of the head. The processor and displaying unit is installed at or is capable of being plug-in to a top of the head. Or the head has a recess at a top thereof and the sensor is installed at a lateral side of the recess; and the processor and displaying unit installed at or is capable of being plug-in to a lateral side of the head. | 10-16-2008 |
| 20090232614 | Direct Tension Indicating Washer Having Enhanced Emission Of Indicating Material - A direct tension indicating washer including a first surface having a protuberance formed thereon; a second surface having an indentation formed opposite the protuberance; an indicating material positioned in the indentation; and a channel leading from the indentation to an outer diameter of the direct tension indicating washer; wherein the protuberance has four walls, each of the walls being substantially perpendicular to the first surface. | 09-17-2009 |
| 20150030408 | SENSOR-CONTAINING CONNECTION ELEMENT AND MANUFACTURING METHOD - A connection element consists of a longitudinally oriented support structure that is at least partially hollow and a sensor unit that is arranged in the inside of the support structure, is connected to a signal transmission device, and is non-positively connected to the support structure. The required force for the non-positive connection is produced by internal stresses after a plastic deformation of the support structure during a joining process of the support structure and the sensor unit. A method for manufacturing a connection element consisting of a support structure that is at least partially hollow and a sensor unit includes positioning the sensor unit in a region of the support structure and, using radially movable tool segments, exerting a force on the support structure in the radial direction and at the same time reducing the periphery of the support structure in the region in which the sensor unit is positioned. | 01-29-2015 |
| 20150063941 | ELECTRONIC SCREW AND SCREW TORQUE SENSING DEVICE - An electronic screw with an electronic torque display is disclosed. The screw includes a body and a torque sensing element. The body has a threading head, a shank connected to the threading head and a recess located on the side wall of the shank. The torque sensing element is disposed in the recess and detected the torque value of the electronic screw. The torque sensing element is electrically connected to the electronic torque display, wherein the electronic torque display displays the torque value that detected from the torque sensing element. | 03-05-2015 |
| 20150125234 | DIRECT TENSION INDICATING WASHER - A direct tension indicating washer includes a body having a first surface having a protuberance formed thereon; the body having a second surface having an indentation formed opposite the protuberance; an indicating material positioned in the indentation; and a channel formed in the second surface, the channel coupling the indentation to an outer edge of the body; wherein at least one of (i) a ratio of h/t is in a range of about 0.5 to about 0.8, (ii) a ratio of S/DW is in a range of about 0.2 to about 0.3 and (iii) a ratio of DSM/SSM is in a range of about 0.4 to about 0.6, is satisfied; wherein t is a thickness of the body, S is a length of the channel, h is a height of the protrusion, DW is a width of the indentation taken along a radius, DSM is an amount of indicating material that is emitted into the channel upon reaching a predetermined bolt tension and SSM is an amount of indicating material that remains in the indentation upon reaching a predetermined bolt tension. | 05-07-2015 |
