Abstract: A tool for use in installing and removing a cleco fastener. The tool includes a main body of the tool. The main body defines an elongated length. A grip pocket radially extends from the main body and is configured for receiving a shoulder extending from a cylindrical body of the cleco. A pusher surface is spaced-apart along the length of the main body from the grip pocket and also radially extends outwardly of the main body and configured for pushing a plunger extending from the cylinder body of the cleco. The pusher surface is configured for slidable movement along a portion of the length of main body. A handle is slidably received within the main body and coupled with the pusher surface to provide translation to the pusher surface to engage the plunger of the cleco to activate the cleco.

Abstract: A composite/metal joint includes a composite member, a metallic member, a cylindrical liner, and a fastener. The composite member has a first aperture. The metallic member is disposed adjacent to the composite member and has a second aperture coaxially aligned with the first aperture. The cylindrical liner extends longitudinally from a first end to a second end. The cylindrical liner has a cylindrical outer liner surface and a longitudinally extending third aperture coaxial with the first and second apertures and defined by an inner liner surface. The cylindrical liner is disposed in the first and second apertures with the outer liner surface adjacent to aperture walls of the first and second apertures. The cylindrical liner has a plurality of grooves intersecting the outer liner surface. The fastener is disposed through the third aperture of the cylindrical liner and is configured to attach the metallic member to the composite member.

Abstract: A tolerance-compensating fastening arrangement for fastening a component to a structure includes a male fastener having a fastening bolt having a serrated outer profile; and a female fastener having a socket base arranged therewithin movable along a horizontal plane and having a conical funnel to receive the bolt such that horizontal tolerances between the male and female fasteners are compensable by movement of the socket base actuated through contact of the bolt with an inner surface of the funnel; and a socket jaw arranged on the socket base and having several jaw segments arranged circumferentially around a vertical axis to form a central jaw opening configured to receive the bolt through the funnel, the jaw segments configured movable radially with respect to the vertical axis to adjust a size of the jaw opening to retain the bolt along the vertical axis via contact of the serrated inner and outer profiles.

Abstract: A roadway expansion joint apparatus comprises at least one finger joint that extends across an expansion gap. Each finger joint comprises a base plate, a finger unit, a pivot and a cantilever support. The finger unit comprises a body and at least one unsupported finger extending longitudinally from a distal end of the body. The pivot pivotally couples the finger unit to the base plate about a vertical pivot axis. The cantilever support is located at or between the pivot and a proximal end of the finger unit; the cantilever support allows pivoting of the finger unit relative to the base plate about a vertical pivot axis and impedes pivoting of the finger unit relative to the base plate about a horizontal axis, thereby cantilevering the finger joint to the base plate at the cantilever support.

Abstract: A ductile anchor attachment (DAA) mechanism is disclosed. Example embodiments are directed to a DAA mechanism having a bottom section configured to connect to an existing anchor; a tapered lower section; a narrowed neck forming a ductile yield mechanism; a tapered upper section; a drilled and untapped top section; and a hollowed interior. Example embodiments are also directed to a DAA mechanism comprising: a headed rebar with a rebar coupler; a rebar segment coupled to the rebar coupler at a first end of the rebar segment; a metal jacket encasing at least a portion of the rebar segment; and a flange connection bracket coupled to the rebar segment at a second end of the rebar segment.

Abstract: The invention provides a radially expanding fastener/alignment plug assembly for use with a torque power tool, the assembly including: a sleeve member (10), insertable into a hole of an object, having radial expansion elements with inner surface portions which are tapered towards a first end; an expanding member (20), insertable in the sleeve member, having an outer surface portion which is tapered towards a first end, cooperating with the inner tapered surface portions of the radial expansion elements of the sleeve member; and a displacement member (30) formed between a second end of the sleeve member and a second end of the expanding member. Advantageously, the assembly is self-reacting allowing an actuation torque to be applied to and reacted upon to create high levels of pulling and expansion force without the need for an external reaction point.

Abstract: A packaging product for packaging flat products (e.g., flat stock) such as abrasive articles, e.g., abrasive disks. The packaging product is designed to display flat stock products while maintaining the geometric properties and integrity of the products. The packaging product has a first component that is an engagement member, a second component that is a first retention portion and a third component that is a second retention portion. The engagement member engages with the first and second retention portions to secure a plurality of products between the retention portions.

Abstract: A mobile terminal comprises: a case that has an insertion hole formed on a side surface thereof; a metal beam that includes a side metal covering the side surface of the case, and a connection bridge penetrating the insertion hole and extending towards the inside of the case from the side metal; a fixing device that is inserted into a fixing hole formed on the connection bridge so as to be fastened to the case; and a waterproof packing that is interposed between the side surface of the case and the side metal, and that has an opening part through which the connection bridge passes. As a result, water cannot get inside the terminal, and malfunctioning due to water permeation can be prevented thereby.

Abstract: A clip connection for coupling at least two components together, e.g., for fastening a first component to a second component in a joining direction, may include a plug-in pin arranged on the first component and having a longitudinal center axis extending parallel to the joining direction. The pin may include a conical longitudinal section that tapers in the joining direction. A radially resilient engagement hook may be provided engageable with an engagement contour. A sleeve may be arranged on the second component and have a longitudinal center axis extending parallel to the joining direction. The sleeve may include a plurality of radially resilient spring elements having a free end that supports the plurality of spring elements on the conical longitudinal section of the pin under radial preload when the sleeve and the pin are plugged together. The pin may be pluggable into the sleeve in the joining direction.

Abstract: A family of devices attach elements previously bored in a cylindrical manner, wherein each device has a in extending along an axis and a tapered shaft and a head, and a bushing intended for accommodating the shaft of the pin, the bushing extending along the same axis having an outer cylindrical surface and an inner tapered surface. The family has at least two devices with bushings presenting, before installation by interference, an identical outer diameter and a different rate of taper of the inner surface.

Abstract: A retainer for a drop-in anchor includes a durable, moisture resistant member insertable into a sleeve of a drop-in anchor and configured to be retained in the sleeve by one or more threads disposed in the sleeve to prevent inadvertent removal of a plug from the sleeve. A drop-in anchor assembly includes a tubular sleeve having a first end including one or more internal threads, and an expandable second end. A plug is insertable in the sleeve such that when the plug is driven into an installed position in the sleeve the second end expands. A retainer formed of a durable moisture-resistant material is insertable in the sleeve behind the plug, and is configured to be retained in the sleeve by the one or more threads and prevent inadvertent removal of the plug from the sleeve.

Abstract: A hybrid drop-in anchor with an expansion sleeve, a split base region of an anchor body and a setting plug. The sleeve surrounds an annular body recess of the body, with a clip portion extending around an annular recess. Clip segments extend from the arcuate portion, each having a proximal portion with an original thickness and a distal portion having at least one projection, extending therefrom. The projection extends from the outer surface without corresponding cavity on an inner surface, with a projection of total thickness greater than the original thickness. After the setting plug is driven, and the threaded male member is inserted and tightened, pulling movement of the anchor moves the expansion sleeve baseward, such that each segment rides outwardly on the tapered portion, providing radial expansion of the anchor and locking, wedging engagement of each segment projection with wall surfaces with enhanced pull-out resistance.

Abstract: A fastening device for furniture fittings on furniture parts which includes at least one dowel core that can be inserted into a hole of a furniture part. The dowel core can be arranged inside a dowel sleeve, and an actuating device moves the dowel sleeve relative to the dowel core, so that the dowel sleeve spreads on the dowel core. The dowel core and the dowel sleeve have at least two, preferably more, corresponding inclined surfaces that are offset in the axial direction, so that if the dowel sleeve is moved relative to the dowel core, the dowel sleeve spreads substantially evenly at two, preferably more, axially offset locations.

Abstract: A plastic screw grommet includes a head portion provided with a screwing hole for a tapping screw, and a leg portion expanded or prevented from deflecting by screwing the tapping screw. A hole diameter of the screwing hole is made smaller than an outer diameter of the above-mentioned tapping screw and larger than a root diameter of the tapping screw. Also, a projecting portion for filling a screw groove of the tapping screw to be screwed is formed in an inner face of the screwing hole.

Abstract: Disclosed is a taper bolt connection including a taper bolt received in a taper bush, a fastening nut and a washer, the taper bush having a continuous longitudinal slot, and the taper bush being capable of being spread open uniformly in the radial direction by means of a fastening nut screwable onto the taper bolt. Since the taper bolt and/or the taper bush have/has, at least in regions, an at least Teflon-containing coating, tribochemical processes between the taper bush wedge surface and the taper bolt wedge surface are largely avoided, so that the taper bolt connection can be released again without great effort even after a long period of connection. Furthermore disclosed is the use of the taper bolt connection for connecting a rudder unit to a carrying structure of a fuselage cell of an aircraft.

Abstract: The invention relates to a fixing device for anchoring in a building material, comprising a fixing element with an axial conical anchoring region and a fixing region and a radially flexible clamping sleeve which may be clamped between the anchoring region and the building material. The invention further relates to a method for anchoring the fixing device.

Abstract: In an anchor installation in lightweight construction panels including first and second cover plates with a support core structure disposed between the cover plates, wherein the anchor is installed in a bore extending through the first cover plate, the support core structure and into the second cover plate, the anchor includes engagement components firmly engaging the first cover plate, the intermediate support core structure and also the second cover plate so that the anchor is safely and firmly held in position in the lightweight construction panel.

Abstract: A mechanical fastener assembly is provided for joining two or more workpieces. The assembly includes a mechanical fastener and a slotted collar. The mechanical fastener has a shaft received within aligned bores of the workpieces, while the slotted collar surrounds at least a portion of the shaft and is also received within the aligned bores. Inserting and advancing the slotted collar into the aligned bores causes the slot of the slotted collar to at least partially close, thereby causing an inner surface of the slotted collar to engage at least a portion of the shaft of the mechanical fastener and an outer surface of the slotted collar to engage at least a portion of the aligned bores of the two workpieces. Such a mechanical fastener assembly can effectively transform a bolted joint into a stronger shear joint.

Abstract: A fastening assembly includes a fastening member, a locking member engaged with the fastening member, and an elastic member sleeved on the fastening member. The fastening member forms an arc resisting sidewall. The elastic member includes a main body and a plurality of elastic strips extending from a same side of the main body and spaced from each other. Each elastic strip gradually closes to an center axis of the main body along the direction of away from the main body. Each elastic strip forms an arc protrusion towards the center axis of the main body on an inner wall. The arc protrusion matches with the resisting sidewall.

Abstract: A blind fastener for clamping together two components through which the fastener extends comprises a sleeve having a radially expandable first end, a threaded fastener for extending through the sleeve, an expansion head threadedly mounted on the threaded fastener whereby movement of the expansion head towards the second end of the sleeve expands the first end, a collar for engaging with the second end of the sleeve and having an aperture through which the threaded fastener extends, the threaded fastener having a head formation for rotation of the threaded when the collar is positioned between the head portion and the sleeve, and said second end of the sleeve and the confronting surface of the collar comprising inter-engaging formations which resist relative rotation of the sleeve and collar but permit their axial separation.

Abstract: The invention relates to a fixing element (1) for anchoring in an undercut drilled hole. The fixing element (1) has a shank portion (2) and an expansion element (3), there being arranged on the shank portion (2) an expander body (8) for expanding the expansion element (3) and a load-application means (7). The expansion element (3) is sleeve-like, having at its end that is at the rear in the direction of introduction (E) a ring-shaped main body (13) at the introduction end of which there is arranged an expansion lobe (10) having an opening (17).

Abstract: A drop-in anchor includes a tubular sleeve having a first end and an expandable second end, the sleeve including one or more indicator surfaces offset from the first end along a sleeve axis of the sleeve. A plug is insertable in the sleeve such that when the plug is driven into an installed position in the sleeve, the second end expands and an installation tool interacts with the first end to provide a visual indication, due to contrast in appearance with the one or more indicator surfaces, of engagement of the drop-in anchor to a workpiece.

Abstract: The invention relates to an expansion anchor (10) comprising an expansion sleeve (12) which is divided into expansions (18) by means of longitudinal slots (14) arranged in the front section in the direction of placement (16) of the expansion sleeve (12) and also has an inner thread (20) in the rear section in the direction of placement (16). The expansion anchor (10) further comprises an expansion body (22), which preferably has the shape of a cone stump that tapers conically in the direction of placement (18), the conical stump being arranged in the front section in the direction of placement (16) of the expansion sleeve and inside the expansion sleeve (12).

Abstract: A unique self-drilling anchor screw is configured so that it can be set and used to secure a first object to a second object using only one tool to save time and effort. A nut of the screw engages a nut stop when turning in reverse, thereby driving rotation of the screw in reverse. The screw has a drill bit tip adapted for drilling a hole while turning in reverse. A hole is drilled using the drill bit tip while turning the nut in reverse with a socket wrench of the one tool. After drilling the hole, the nut is turned in the forward direction with the socket wrench to engage a sleeve member of the screw, which sets the screw in the second object. Then, the nut is further turned forward using the socket wrench to tighten the nut against the first object located between the nut and the second object.

Abstract: An exemplary embodiment relates to an expansion bolt component that includes a bolt, an elastic component, and a nut. The bolt includes a necking part at an upper end thereof. The elastic component includes sides parts that include a plurality of ribs symmetrically arranged. Each rib includes a lower part and an upper part, each lower part being connected to a lower part of an associated adjacent rib. The nut is configured to be threaded onto a lower end of the bolt and to move into a lower end of the elastic component due to rotation of the bolt. The lower part of each rib is configured to expand in a radial direction when the nut moves into the elastic component. The upper part of each rib is configured to move simultaneously toward the upper part of its associated adjacent rib, such that the upper parts of the plurality of ribs clamp the necking part of the bolt.

Abstract: A retainer for a drop-in anchor includes a durable, moisture resistant member insertable into a sleeve of a drop-in anchor and configured to be retained in the sleeve by one or more threads disposed in the sleeve to prevent inadvertent removal of a plug from the sleeve. A drop-in anchor assembly includes a tubular sleeve having a first end including one or more internal threads, and an expandable second end. A plug is insertable in the sleeve such that when the plug is driven into an installed position in the sleeve the second end expands. A retainer formed of a durable moisture-resistant material is insertable in the sleeve behind the plug, and is configured to be retained in the sleeve by the one or more threads and prevent inadvertent removal of the plug from the sleeve.

Abstract: A removable blind fastener comprising a first member (10) having an elongate body (11) with a head (12) at one end, a second member (20) adapted for axial movement relative to the first member, the second member having a threaded aperture (25) and at least one adjustable finger (22), the adjustable finger having a flange remote from the head of the first member and the finger being within the circumference of the hollow body of the first member in the first position of the adjustable finger and the flange extends beyond the circumference of the hollow body of the first member in the second position of the adjustable finger. Rotation of a threaded member (30) in a first direction causes axial movement of the second member relative to the first member in a clamping direction.

Abstract: An anchor apparatus for insertion into a pre-formed hole in an object of interest for permanent embedment in the hole. The apparatus includes: a screw pair having: (i) a screw with a screw head and (ii) a nut threadly interconnected therebetween; an anchor with a distal part and a proximal part to be received and anchored in the hole, the anchor comprising at least two fixing petals extendable from the outer perimeter of the distal part of the anchor; and a pushing tubular member with a distal part and a proximal part, the distal part of said tubular member adapted to expand said fixing petals of the anchor.

Abstract: A drop-in anchor system includes a drop-in anchor having a tubular sleeve with a first end and an expandable second end. The sleeve tapers in inner diameter from the first end to the second end at a sleeve taper angle. The drop-in anchor includes a plug insertable in the sleeve such that when the plug is driven into an installed position in the sleeve the second end expands. The plug tapers at a plug taper angle from a head end to a tip end and a difference between the sleeve taper angle and the plug taper angle is about one degree or more. The system includes an installation tool configured to form a hole in a workpiece into which the drop-in anchor is insertable and to drive the plug into the installed position in the sleeve.

Abstract: An axis body includes a first abutting portion abutting against an abutted portion of a leg portion by pushing-in; and a second abutting portion which is positioned on a pushing-in backward side more than the first abutting portion. After a part of the leg portion is spread by the first abutting portion, the axis body is pushed in further, so that the other one part of the leg portion is spread. A temporary attaching device, which temporarily attaches the axis body and a main body at a position before the above pushing-in wherein one portion of the axis body is housed inside the main body, is provided.

Abstract: A drop-in anchor includes a tubular sleeve having a first end and an expandable second end. The sleeve tapers in inner diameter from the first end to the second end at a sleeve taper angle. A plug is insertable in the sleeve such that when the plug is driven into an installed position in the sleeve the second end expands. The plug tapers at a plug taper angle from a head end to a tip end. A difference between the sleeve taper angle and the plug taper angle is about one degree or more.

Abstract: An expansible anchor assembly includes an expansion sleeve and an anchor bolt plugging and expanding the expansion sleeve. The expansion sleeve includes a first end, a second end, an expansible member adjacent to the second end that is divided into expansible segments by slits, and a bore defined in the expansion sleeve for communicating the first end with the second end. A groove is annularly formed on the expansion sleeve, and a distance from the groove to the second end equals to ¼˜? times a length of the expansion sleeve for preventing an over length of the slits, which is beneficial to the manufacture. During expansion, the expansible segments are completely expanded when the expansible member is subjected to a thrust from the anchor bolt to promote the anchoring force and avoid damaging a working wall.

Abstract: The present invention relates to an anchor bolt and more specifically pertains to a post-installed anchor that is securely anchored to, for example, an existing concrete floor. The post-installed anchor has a sleeve fit on a bolt body and a fixation member arranged on an edge of the bolt body and screwed to a threaded end of the bolt body. The fixation member has an internal threaded end and an expansion end. The expansion end is divided into four expansion pieces by slits. The expansion pieces are arranged to face a head of the bolt body and are slightly widened toward the head of the bolt body. One end of the sleeve forms a tapered face. After insertion of the post-installed anchor into a pilot hole (installation hole) bored in the concrete floor, as the bolt body rotates, the fixation member screwed to the bolt body moves toward the sleeve. This movement causes the expansion end of the fixation member to ride on the tapered face of the sleeve and to be pressed open and extended outward.

Abstract: A drop-in anchor includes a tubular sleeve having a first end and an expandable second end, the sleeve having one or more raised surfaces at the first end. A plug is insertable in the sleeve such that when the plug is driven into an installed position in the sleeve the second end expands and an installation tool interacts with the one or more raised surfaces to provide a visual indication of engagement of the drop-in anchor to a workpiece.

Abstract: A unique self-drilling anchor screw is configured so that it can be set and used to secure a first object to a second object using only one tool to save time and effort. A nut of the screw engages a nut stop when turning in reverse, thereby driving rotation of the screw in reverse. The screw has a drill bit tip adapted for drilling a hole while turning in reverse. A hole is drilled using the drill bit tip while turning the nut in reverse with a socket wrench of the one tool. After drilling the hole, the nut is turned in the forward direction with the socket wrench to engage a sleeve member of the screw, which sets the screw in the second object. Then, the nut is further turned forward using the socket wrench to tighten the nut against the first object located between the nut and the second object.

Abstract: A novel fastener is provided which includes an expanding sleeve for receiving a pin where the pin has shank terminating at a first end in a pin head and terminating at a second end in an externally threaded portion of the pin. The expanding sleeve may include a hollow tubular shank terminating at a first end in a sleeve head and having an opening at a second sleeve end for receiving the pin. The sleeve head include an internal sleeve head surface for engagement with an external pin head side surface when in an assembled position. When the pin and expanding sleeve in the assembled position are inserted into an aperture in a structure, a gap is formed between the aperture and an outer surface of the expanding sleeve. The outer surface of the expanding sleeve radially expands outward into the aperture filling the gap upon engagement of the internal face of the sleeve head and the external pin head surface.

Abstract: A temporary fastener and a method of attaching an aircraft skin to a frame using the temporary fastener during a step of the skin to frame assembly process. The fastener secures the skin to the structure while holes for permanent fasteners are drilled through the skin and frame; the fastener is flush mounted so that an automatic drill can drill the holes without interference. The temporary fastener can be removed after the permanent fastener holes are drilled, and before or after permanent fasteners are inserted within their respective holes.

Abstract: A push rivet used to secure members to be mounted includes a rivet body and a pin. Rivet body includes at least a flange portion provided with an insertion hole; a pair of first divided leg portions projecting from the flange portion to an end side; at least a pair of second divided leg portions projecting from the flange portion to an end side to form slits between the pair of second divided leg portions and the pair of first divided leg portions; and bulging portions respectively projecting from end parts of the first divided leg portions and the second divided leg portions to an inner side, the bulging portions having tapered surfaces inclined to project inwardly to the end side.

Abstract: A device for mechanically linking with a rotating axis at least two parts, which is configured to extend in a longitudinal direction in coaxial bores formed respectively in the at least two parts hinged in relation to each other around the axis. The device includes: a cylindrical body including at least one end portion including at least one longitudinal slot, the cylindrical body including in the longitudinal direction a cylindrical bore extended by a frusto-conical bore extending in the at least one end portion configured to be located in another bore; an insert of frusto-conical shape substantially complementary to the frusto-conical bore, the insert including a tapped aperture extending in the longitudinal direction when the insert is accommodated in the frusto-conical bore, and a screw with a threaded end configured to cooperate by screwing with the tapped aperture of the insert allowing to lock the cylindrical body in the another bore and making a rotoide joint around axis.

Abstract: An anchor is provided and includes a hub having a trailing edge, and first and second jaws, each including a body pivotably coupled to the hub and an actuator to induce pivoting of the body, the jaws being initially proximal with the bodies cooperatively forming a lead profile such that the jaws and the hub are configured to penetrate a substrate, separable responsive to fastener insertion through the hub whereby the fastener exerts a first force on the actuators causing splay pivoting of the bodies, and at least partially closeable responsive to continued fastener insertion whereby the fastener exerts a second force on the actuators causing reverse pivoting of the bodies to draw the trailing edge toward the actuators about the substrate.

Abstract: The invention relates to a fastener assembly 1 for use as a slave bolt. The fastener assembly can be tightened and released from the same side and comprises: a) a shank 2 having a bolt head 3 at one end; b) a sleeve 7 slidably arranged on the shank 2; c) a spring 6 to bias the sleeve on the shank 2; and d) an expander stem 9 which can be screwed into a threaded bore 4 which runs the length of shank 2, the stem 9 having an enlarged portion which spreads the fingers 8 of the sleeve so that they engage and clamp the articles to be fastened.

Abstract: A radially expanding bolt assembly has a hollow element insertable into a hole of an object and having an inner surface with at least one inner surface portion which is tapered, an expanding element insertable in the hollow element and having an outer surface with at least one outer surface portion which is tapered and cooperates with the inner tapered surface portion of the hollow element, additional elements for displacing the expanding element in opposite axial directions for tightening and loosening the bolt assembly, and a washer positionable between the object and one of the additional elements at one of the axial ends, so that the one additional element displaces the expanding element in one axial direction and due to cooperation of the tapered surface portions expands the hollow element to clamp it in the hole of the object, while the other additional element displaces the expanding element in an opposite axial direction and the tapered surface portions disengage from one another so that the hollow el

Abstract: In an anchor for the attachment to construction panels including two cover plates and an intermediate support core layer wherein the anchor comprises an expansion body and a wedge body which inserted into the expansion body and includes an opening for screwing or pounding in a mounting means, the installed anchor is disposed in an opening of the panel which extends through the first cover plate and the intermediate support core plate. The expansion body has locking zones and engagement elements which are spreadable by wedge elements. With the anchor installed, a wedging zone spreads out the engagement elements of the expansion body behind the cover plate and the locking zones are interlocked.

Abstract: A pocket plug is made by making a first angled cut and a second angled cut relative to proximate a first line and a first side of an elongate member having a length. A plurality of pocket plugs are made by repeating the first angled cut and the second angled cut a distance apart from the previous second angled cut along the length of the elongate member. Thus, by alternating between the first angled cut and the second angled cut the distance along the length of the elongate member, the plurality of pocket plugs are made.

Abstract: A self-expanding and self-undercutting guard rail bolt includes a dowel having a guard rail fastening end and a ring. The fastening end is configured to be driven in rotation, and the ring is configured to rigidly connect to a first screwing end of the dowel by an incipient fracture portion. The self-expanding and self-undercutting guard rail bolt further includes a counter-dowel screwed to the dowel by a second screwing end. The counter-dowel includes an expansion cone, and an anti-rotation head having at least one edge which projects beyond a periphery of the dowel to prevent rotation of the counter-dowel about an axis of the guard rail bolt.

Abstract: A holding device for holding an object having an opening includes: a first member inserted into the opening, having a cylindrical shape, and including multiple divisional portions divided by notches; and a second member including a shaft movable in the cylindrical shape and a head disposed on one end of the shaft and smaller than the opening and larger than an inner dimension of the cylindrical shape. Each divisional portion is expandable by the head so that the expanded divisional portion holds the object when the first member with the second member is inserted into the opening, and the first member is relatively displaced toward the second member.

Abstract: A fastening element and a method for producing a fastening element is disclosed. The fastening element includes an elongated base body and a connecting sleeve on one end of the base body, which features a connecting section for a prestressing element. The connecting sleeve is fixed on the base body by rolling.

Abstract: A drop-in anchor system includes a drop-in anchor having a tubular sleeve with a first end and an expandable second end. The sleeve tapers in inner diameter from the first end to the second end at a sleeve taper angle. The drop-in anchor includes a plug insertable in the sleeve such that when the plug is driven into an installed position in the sleeve the second end expands. The plug tapers at a plug taper angle from a head end to a tip end and a difference between the sleeve taper angle and the plug taper angle is about one degree or more. The system includes an installation tool configured to form a hole in a workpiece into which the drop-in anchor is insertable and to drive the plug into the installed position in the sleeve.

Abstract: A drop-in anchor includes a tubular sleeve having a first end and an expandable second end, the sleeve having one or more raised surfaces at the first end. A plug is insertable in the sleeve such that when the plug is driven into an installed position in the sleeve the second end expands and an installation tool interacts with the one or more raised surfaces to provide a visual indication of engagement of the drop-in anchor to a workpiece.

Abstract: The present invention is a wall anchor having a novel finger configuration. This wall anchor has a head and barrel portion with a bore extending therethrough and laterally expandable fingers in general alignment with the bore. Instead of a straight channel, a channel having curved portions separates the fingers. The curved portions of the channel define ramp surfaces that at least partially extend into the path of a securing member created by the bore. Thus, when a securing member, such as a bolt, pin, screw, nail or similar object is inserted into the bore to secure the wall anchor to the wall, the securing member contacts the two ramp surfaces, separating the fingers. As the fingers separate, a portion of the fingers near the ramp surfaces deform such that the ramp surfaces rest on an outer portion of the securing member, thus providing a securing force for connecting the wall anchor to the wall and relieving stress on the area at which the fingers are connected to the barrel.