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| Number | Title | Issue Date |
| 8177464 | Connector component with temperature-resistant sensor element The invention relates to a connector component (1) with integrated ultrasonic sensor (5). The ultrasonic sensor (5) is used to determine the prestressing force or the stressing force of the connector component (1), wherein the ultrasonic ... | 05/15/2012 |
| 8075233 | Bolt, the axial force of which is to be determined by a supersonic wave, and a method for the manufacturing thereof The object of the present invention is to provide a bolt, the axial force of which can be measured by a supersonic wave, or the like, with high accuracy and which can be manufactured in a shortened process. A bolt 1 having an angular polygonal shaped b... | 12/13/2011 |
| 7955034 | Sliding anchor The invention relates to a sliding anchor bolt (10) for introduction into a bore. The sliding anchor bolt (10) has a anchor bolt rod (12), disposed on which is a sliding control element (14) having a through-opening (18), through w... | 06/07/2011 |
| 7246980 | Fixing member comprising an integrity control system The invention concerns a fastening member comprising a threaded part (150) and a head (100) with which the threaded part can be turned in order to tighten the fastening member in a corresponding element. The head (100) is formed of a plate (1... | 07/24/2007 |
| 7188558 | Pyromechanical separating element The invention relates to a pyromechanical separating element having a hermetically sealed pyrotechnic pressure element (2), which is installed in a housing (1) and has a gas-forming pyrotechnic charge, and a detachable latching pin (5) which is ... | 03/13/2007 |
| 7156595 | Load indicating fastener insert A method and apparatus for determining fastener axial loading includes a fastener insert having an arched bottom surface, which deflects correlative to the level of axial loading. A load indicating mechanism determines axial loading by measuring the amount of deflec... | 01/02/2007 |
| 7082641 | Systems and methods for replaceable luggage handle A transport device comprises a replaceable telescoping handle. Replacement is achieved by including a release and retaining mechanism in a base to which the telescoping handle is installed. A user can obtain a replacement telescoping handle, release and remove a bro... | 08/01/2006 |
| 7037060 | Shrinkage compensator for building tiedowns An automatic, self-energized, length extending, take-up unit for general use in wall hold down systems. The take-up unit is generally installed as a separate element, independent of threaded retaining elements of a hold down system. One embodiment includes an intern... | 05/02/2006 |
| 7029216 | Torque-limiting locknut The locknut is adapted for axial engagement of a threaded shaft having an axis and an outer thread. The locknut has properties for limiting a tightening torque on the shaft to a predetermined torque value. In one aspect, a first member is adapted for engagement by a... | 04/18/2006 |
| 7014404 | Nut member with tightness-indicating protrusions and loosening-preventing recesses A nut member has first and second end faces and corners, and is formed with a plurality of protrusions, each of which is disposed at a respective corner and each of which has a lateral inner face that extends from the second end face, and a plurality of recesses, ea... | 03/21/2006 |
| 7003862 | Power tool and method of assembling parts using a two-part separable washer A washer has a body having an axis and provided with a first bearing face surface located at one axial side and adapted to cooperate with a nut, a second bearing face surface located at an opposite axial side and adapted to cooperate with an object, at least one thi... | 02/28/2006 |
| 7001123 | Threaded bolt having measurement planes for use in ultrasonic length measurements The invention relates to a threaded bolt provided with measurement planes for use in ultrasonic length measurement. After the threaded bolt has been fixed in a connection, such measurement is performed to determine the length change of the threaded bolt, in order to... | 02/21/2006 |
| 6981829 | Incremental tension fastener assembly The fastener assembly comprises a torquing member and a clamping pressure member assembled together on a common axis. The torquing member has threads formed around the axis. An annular bearing surface extends around the axis on one end of the member. The clamping pr... | 01/03/2006 |
| 6912047 | Apparatus, method and system for inspecting a fastener The apparatus, method and system for inspecting a fastener installed in a structure includes the illumination of a fastener and a portion of the structure surrounding the fastener, the detection of the light reflected from the fastener and the portion of the structu... | 06/28/2005 |
| 6892585 | Variable amplification bolt load indicator apparatus and a method of making and using the apparatus A variably amplified load indicating fastener includes a fastener (100) detachably secured to a load indicator via a base member. The fastener (100) has an abutment which is moved by a change in length under an applied load. The load indicator includes... | 05/17/2005 |
| 6802681 | Fastening element A fastening element is adapted to cooperate with a tie member to exert a compressive force on first and second components. The fastening element has an inner portion (50) resiliently joined to an outer portion (52), such that when a tensile reaction fo... | 10/12/2004 |
| 6712570 | Threaded bolt having measurement planes A threaded bolt having a proximal head end and a distal insertion end, the proximal head end and the distal insertion end are each provided with a single, exposed radial measurement plane, the radial measurement plane at the distal insertion end is formed by a flat ... | 03/30/2004 |
| 6561124 | Position indicator assembly for nuts and or bolts In order to provide a visible indication of loosening of a nut or a bolt relative to another member to which it is threadably engaged, a rotation indicator assembly comprises a first element, which is permanently secured to the nut or bolt and a second el... | 05/13/2003 |
| 6557580 | Self cleaning irrigation valve with offset manual on actuator, body/bonnet alignment, and captured screws An irrigation valve comprises a valve housing made from a valve body joined to a valve bonnet by a plurality of attachment screws. The valve body and valve bonnet have an alignment rib received in an alignment notch when the body and bonnet are joined tog... | 05/06/2003 |
| 6428243 | Cable bolt A cable bolt (10) for use in mining excavations comprising a plurality of generally closely spaced wires or strands (11) which have a first end for fitting into a bore hole (21) formed in an excavation and a second end which is terminated within a cylindr... | 08/06/2002 |
| 6398471 | Utility lug nut tension indicator A tension indicator for use with a fastener that is formed from a stack of conical washers confined in the stack by a cage having a longitudinally extending slot formed therein provides readily discernible visual indication of tension or loss of tension i... | 06/04/2002 |
| 6270302 | Fastener identification system A system to allow a visual determination of the rotational position of a rotatable object relative to a stationary object comprising a body defining front and back surfaces where the body includes at least one aperture having a diameter d1 disp... | 08/07/2001 |
| 6270290 | Tensionable cable bolt A tensionable mine roof cable bolt having a resin grouted upper portion and a mechanical anchor. The cable bolt is rotated during installation in a mine roof bore hole to mix resin and engage the mechanical anchor with the rock. A drivehead press fitted o... | 08/07/2001 |
| 6244804 | Tension-indicating fasteners The present invention provides several embodiments of tension-indicating fasteners that include tension indicators having indicating arms equipped with a laterally-extending contact member or a foot portion. A contact member extends in a tangential direct... | 06/12/2001 |
| 6074134 | Tensionable cable bolt A tensionable mine roof cable bolt having a resin grouted upper portion and a mechanically anchored lower portion. The lower portion includes a shaft which is swaged to the cable and accepts a mechanical anchor. The cable bolt is rotated during installati... | 06/13/2000 |
| 6059500 | Arrangement and method for detecting a fatigue fracture of a bolted connection caused by overstressing An arrangement for detecting a fatigue fracture caused by overstressing of a bolted connection including a bolt and an internal-thread-bearing hollow section which is alternately stressed by an axial flux of force between zero and different maximal values... | 05/09/2000 |
| 6039509 | Mine roof support apparatus and method The present invention pertains to a mining support for supporting rock within a mine. The mining support is constructed of a cable and means for mixing resin in a resin cartridge as the cable is inserted into a bore hole drilled in the rock which the resi... | 03/21/2000 |
| 5971860 | Device for detecting faulty recesses A fastener and method of manufacturing a threaded fastener with a tool-receiving recess in the fastener head are provided including a gauging indicator for indicating whether the recess is properly formed to meet standards. The gauging indicator is prefer... | 10/26/1999 |
| 5873689 | Low torque threaded fastener and mine roof support system using such a fastener A mine roof support system which includes a steel anchor rod and a threaded fastener. The rod has a threaded end portion, and which is adapted for positioning in a bore hole so that the threaded end portion projects outwardly from a rock face. The threade... | 02/23/1999 |
| 5584626 | Torque-limiting fastening element The invention relates to a fastening element with a torque-limiting function, comprising on the one hand a fastening member (2, 2') with working threads (4), that is to say threads which are active for the fastening function of the element, and on the oth... | 12/17/1996 |
| 5556233 | Rock anchor assembly A rock anchor includes an elongate element. A transverse dimension of a portion of the elongate element is enlarged. The transverse dimension is reducible on the application of a suitable force applied to the enlarged portion. The invention extends to a t... | 09/17/1996 |
| 5553982 | Fluid type pusher with thrust indicator An annular fluid type pusher for tightening a part on a shaft comprises, a body mounted on the shaft, a pushing piece for pushing the part with a fluid pressure, a sealed fluid path formed annular in the body for sealingly containing a fluid and slidably ... | 09/10/1996 |
| 5472302 | Bolts having indicators A bolt includes a movable pin in the center thereof. This pin can freely move up and down in the bolt. If the pin protrudes out of bolt a predetermined distance after the bolt is screwed into a blind bolt hole, then an inspector knows that the bolt is ful... | 12/05/1995 |
| 5452679 | Hoisting device with stressing indicia An improved hoisting device, such as a hook, shackle, ring, link, or the like, includes indicia for determining deformation damage to the device from overstressing. The indicia includes components which assume a predetermined geometrical configuration, su... | 09/26/1995 |
| 5417520 | Nut with deformed internal thread, and method of using same in bolt assembly A nut for use in a bolt assembly having an adhesive anchoring capsule for attaching roof or wall supports to the rock structure of a mine. The nut has deformities in its continuous internal thread that cause the continuous internal thread to bulge inwardl... | 05/23/1995 |
| 5365991 | Curtain support A moving slide has a pair of flexible curtains mounted to its front and rear surfaces, the curtains being attached at opposite ends to front and rear support posts mounted to a base. The support posts have upper and lower pulleys. A cable is connected to ... | 11/22/1994 |
| 5352065 | Rock bolting A drive nut (3,7) for a rock bolt, incorporating a nut (7) with a crimped protrusion (9), and an insert (3). The protrusion is crimped to form a plurality of lips (8) adapted to retain insert (3) in the head of the nut (7), the crimping being effected by ... | 10/04/1994 |
| 5336104 | Connector An electrical connector (10) includes a plug housing (3) and a cap housing (7). A bolt housing (1) is provided with a bolt (5) therethrough for tightening the connector (10). The bolt housing has a mechanism (9) for indicating coupling completeness throug... | 08/09/1994 |
| 5326157 | Wheel mounting apparatus for a bicycle A wheel mounting apparatus for attaching a wheel to the wheel forks of the body frame of a bicycle, comprising an axle for rotatably supporting the wheel and engageable with the wheel forks of the body frame, a retaining device for preventing detachment o... | 07/05/1994 |
| 5312166 | Quick release mechanism having a tightening force indicator A quick release mechanism for tightening a hub assembly having a tubular shaft between prongs of a bicycle frame fork. This mechanism includes a tightening rod extending axially through the tubular rod, a first clamp and a second clamp mounted on the tigh... | 05/17/1994 |
