Abstract: A fastening device on a plastic attachment for a motor vehicle, especially on a bumper, with a receptacle formed in one piece on the attachment for a part to be fastened to the attachment by means of snap fastening, which, like the receptacle, has no resiliently deformable snap fastening element, and a plug-in element having resiliently deformable snap fastening elements for position-setting snap fastening on the one hand to the part to be fastened and on the other hand to the socket on the attachment, is to be made susceptible of rational and simple manufacture. For this purpose such a fastening device provides for the engagement of at least one of the snap fastening means of the plug-in element, the receiver of the attachment has substantially oppositely lying arms of limited circumference with at least one opening each with respect to the direction of insertion of the plug-in element for the achievement of the position-fixing snap fastening in question.

Abstract: A Spring fastener with critical configuration of the barbs, which allow the extraction of the fastener without destruction of the slot and/or the fastener. This critical configuration of the barbs allows spring fasteners to be used in slots of various widths and prevents rattling, which would take place in the case of spring fasteners of the present state of the art. The critical configuration is based on the special dimensions and special shape of the barbs with regard to the parts and the slots involved in assemblies of the spring fasteners and the parts. Assemblies of miscellaneous parts connected together by means of such spring fasteners, as well as vehicles comprising such assemblies may be made.

Abstract: An expansion wedge anchor (80) for insertion in a hole (H) delimited by a wall comprises an expander member (32) and an expansion number (34), the expander member being provided at a leading end of the expander member, the expander member comprising a flaring end (40), the expansion member being expandable at a trailing end (48) thereof and being adapted to engage the wall of the hole when the expander member is positioned in the hole, wherein upon longitudinal withdrawal of the expander member from the hole, the expander member displaces longitudinally relative to the expansion member with the flaring end thereof gradually causing the trailing end of the expansion member to expand, whereby a trailing edge of the expansion member engages the wall of the hole. The trailing end is adapted, when expanded by the flaring member, to extend at an angle with respect to a longitudinal axis of said expander member.

Abstract: The screw grommet 1 comprises a flange 2 and a shank 3 extending from the flange. The shank is provided with flexible legs 7 extending from the end of the shank towards the flange and outwardly from the shank. The shank has a screw insertion hole 13 into which a tapping screw is screwed to prevent the legs from being bent radially inward towards the shank so that the screw grommet is fixed to the workpiece by means of the legs and the flange. The inner portion of the legs is provided with a threaded section turned by screwing in the tapping screw. The flange 2 is integrated with a tubular fastening torque bearing section 18 extending in the direction opposite the shank 3. The fastening torque bearing section is formed with a screw insertion hole having a diameter smaller than the outside diameter of the tapping screw so as to receive the tapping screw.

Abstract: A threaded blind insert includes a shank with an axial bore therethrough having a head at one end and a threaded region of the bore at the opposite end. The wall of the shank between its outer surface and the bore includes a weakened deformable portion created by a reduced outside diameter of the shank in that area. A reinforcement collar integral with the shank is located at approximately the middle of the deformable portion of the shank thus providing a more rigid area at the collar which creates bulges in the deformable portion on either side of the collar when the insert is compressed. A flange located adjacent the underside of the head of the insert has an outer diameter greater than the shank but less than the head. When fitted into a mounting hole of a workpiece, the flange centers the insert and provides an annular gap between the shank and the mounting hole.

Abstract: A pin-and-bushing clip connects a panel member to a body while providing a water-tight seal between the panel member and the body and between a pin head and a bushing flange. Appropriate and limited pressing force is applied to seal members even when a strong pressing force is applied to the pin head.

Abstract: An anchoring system including an anchor including a shank with an expandable portion and a wedge arranged to wedge against the expandable portion, the expandable portion having a first portion thicker than a second portion thereof. There is also disclosed an anchoring system including an anchor including a shank with an expandable portion and a wedge arranged to wedge against the expandable portion, and a biasing device adapted to exert an outwardly directed expanding force against the expandable portion.

Abstract: The present invention is directed to developments in the fields of dentistry and dental surgery, and particularly to an improvement in dental restoration apparatus. Typically, apparatus of this type includes an implant adapted to be implanted in an anchor site fashioned within the bone of the jaw of the patient. In addition, the apparatus includes an abutment ultimately providing support for a tooth restoration. Finally, the apparatus includes a fastener assembly for engaging both the implant and abutment in their mounted orientation, and securing the two structures together in a manner to positively resist relative movement both axially and rotationally.

Abstract: A plastic encapsulated bolt includes a metallic insert having a head (e.g., a hex head, square head, or other type of deformed head) and a shank. An outer plastic layer encapsulates the metallic insert and forms a plastic encapsulated head and a plastic encapsulated shank. The plastic encapsulated shank can be totally or partially threaded. In one application, the plastic encapsulated bolt is used in combination with a plastic female anchor having an internally threaded portion. The plastic female anchor preferably includes multiple sections. The plastic encapsulated bolt includes a tapered threaded nose that engages the internally threaded portion such that the sections of the plastic female anchor expand outwardly as the plastic encapsulated bolt is threaded therein, causing the anchor to engage in an interference fit with a hole, for example, in concrete.

Abstract: A fastener having a head and two expandable legs. The fastener further has a Y-shaped funnel configuration, which has been formed by a partial cut of the legs. The sides of the Y-shaped funnel comprise inwardly bent portions which are designed to extend into the slot of an object. The bent portions produce jamming and clamping when an expanding member is inserted through a hole on the head, resulting to highly improved pulling force. The fastener may be used in slots of different widths and may be pulled easily out of the slots, if so desired, in contrast with the fasteners of the present state in the art. Further, the fastener may be used in vehicles to connect one or more parts together.

Abstract: This invention pertains fasteners which are characterized by adaptability of use with substrates, such as steel panels for example, of various thicknesses. This is achieved predominately by providing the fastener with legs having an origin section in the vicinity of the head of the fastener. Expansion promoters and/or anti-sliding elements improve considerably the separation resistance of objects connected with the fasteners of the present invention. Assemblies and vehicles comprising the spring fasteners of this invention, connecting two objects, one of the objects comprising a slot in which the fastener is inserted, and the other a hole, are also included within the scope of the instant invention. Provision of an elastic body in the vicinity of the bottom section of the fasteners provides water and gas proof properties, and further assist in the elimination of squeaking noises.

Abstract: The invention relates to an expansible anchor (10) for fastening to a panel-shaped building material, having an anchor sleeve (12) with forwardly projecting expansion tongues (18) that can be spread open by drawing in an expander body (24) having an expander cone (26). The invention proposes to form the expansible anchor (10) with a locking connection (20, 36) which locks the expander body (24) on the expansible anchor (10) in a position in which the expander body (24) is drawn in between the expansion tongues (18) and holds the expansion tongues (18) in a spread-open position. The invention has the advantage that the expander body (24) remains in its position in which it is drawn in between the expansion tongues (18) and holds the expansion tongues in a spread-open position even when an expander screw is unscrewed from the expansible anchor (10).

Abstract: A blind fastener with an improved drive nut and assembly process. The blind fastener includes a screw, a sleeve, a nut, and a drive nut. The drive nut has a smooth bore and protruding nibs that mate precisely with a driving recess located in the nut head. A side portion of the drive nut is deformed to retain the drive nut on the screw against the nut. Once the new assembly process for the blind fastener has been completed, the drive nut will have been mated with the nut head to prevent any rotation of the nut during installation of the blind fastener. The assembly process includes placing the sleeve over the threads of the screw to a position adjacent the screw head. The nut is then threaded onto the screw adjacent the sleeve. The protruding nibs of the drive nut are next aligned and physically engaged into the driving recess of the nut head by sliding the smooth bore over the screw.

Abstract: A fitting for connecting two structural components, particularly plates, includes a clamping device mounted in the first structural component and an expanding sleeve which can be secured to the second structural component. A bolt is arranged in the expanding sleeve so as to be longitudinally movable by the clamping device for expanding the expanding sleeve using a conical portion of the bolt. The conical portion of the bolt is an approximately cone-shaped projection whose longitudinal axis is laterally offset relative to the longitudinal axis of the bolt.

Abstract: A mounting system for use in a work environment is disclosed. The system includes a mounting bracket having a first side and a second side. Either side of the mounting bracket is adapted for selective coupling to one of a mounting structure or an accessory. The mounting system also includes a first mounting interface associated with the first side of the bracket and a second mounting interface associated with the second side of the bracket. A sub-interface extends from each of the first mounting interface and the second mounting interface comprising an expansion member configurable between a first effective average cross-sectional dimension and a second average effective cross-sectional dimension and adapted for receiving a fastener. A mounting bracket including a first side and a second side is also disclosed. The mounting bracket includes a first mounting interface associated with the first side of the mounting bracket and a second mounting interface associated with the second side of the mounting bracket.

Abstract: An expandable bolt device secures a fragile part, like a quartz part, onto a second part. The expandable bolt device comprises a bolt and a locking device near a distal end of the bolt, the locking device being movable radially between an outward locked position and an inward unlocked position by moving the bolt axially with respect to the locking element. The distal end of the bolt is accommodated within a hole in a surface of the fragile part, which hole includes a first cylindrical section adjacent the surface and a wider second cylindrical section that is further away from the surface. In the unlocked position, the diameter of the expandable bolt device is smaller than the first diameter. After insertion of the expandable bolt device into the hole, the locking element is located in the second section of the hole. In the locked position, the locking element expands to a diameter wider than the first hole section and narrower than the second hole section.

Abstract: An anchor for boards is provide which comprises a socket including a tubular portion, a plurality of split pieces integral with the tubular portion and having intermediate portions slightly bent outwardly, the socket being integrally provided with a flange at one end thereof and a nut member at the other end thereof, and a screw inserted into the socket and threaded into the nut member. The split pieces have their outer peripheral surfaces covered with a resilient member. Also, a method for manufacturing the anchor is provided.

Abstract: A conical screw connection for multi-disk shaft couplings is described, having a tension bolt (1), a first spring collet (3) arranged on the tension bolt and having a collar (2), at least one second spring collet (5) having a collar (4) and supported by the first spring collet, with the disks of the multi-disk set being securable on said second spring collet, wherein the seat between the tension bolt and the first spring collet is conical, and the seat between the first spring collet and the second spring collet is cylindrical, and a tension element (7) which axially clamps the disks of the multi-disk set, where the tension bolt has a threaded borehole (8) for a screw (9) whose head (10) is supported on the tension element.

Abstract: This invention relates to a fastener, which expands by the insertion of an expanding member, preferably a screw. The fastener comprises a substantially flat head and two expandable legs. The head has an upper side and a lower side, preferably separated by a gap. The head has also a hole on the upper side in which the screw engages. Further, the screw engages in other locations of a critical portion of the rest of the body of the fastener, thereby increasing considerably the prevailing torque required to render the screw loose, the pulling force required to break the fastener or otherwise pull the screw out of the engageable hole of the upper side of the head, as well as the stripping torque.

Abstract: A blind fastener with an improved drive nut and assembly process. The blind fastener includes a screw, a sleeve, a nut, and a drive nut. The drive nut has a smooth bore and protruding nibs that mate precisely with a driving recess located in the nut head. A retaining device is used to retain the drive nut on the screw against the nut. Once the new assembly process for the blind fastener has been completed, the drive nut will have been mated with the nut head to prevent any rotation of the nut during installation of the blind fastener. The assembly process will now include placing the sleeve over the threads of the screw to a position adjacent the screw head. The nut is then threaded onto the screw adjacent the sleeve. The drive nut's protruding nibs are next aligned and physically engaged into the driving recess of the nut head by sliding the smooth bore over the screw. A retaining device is placed over the screw adjacent the drive nut to retain the drive nut to the screw.

Abstract: A blind fastener with an improved drive nut and assembly process. The blind fastener includes a screw, a sleeve, a nut, and a drive nut. The drive nut has a smooth bore and protruding nibs that mate precisely with a driving recess located in the nut head. An end of the drive nut opposite the nibs is deformed to retain the drive nut on the screw against the nut. Once the new assembly process for the blind fastener has been completed, the drive nut will have been mated with the nut head to prevent any rotation of the nut during installation of the blind fastener. The assembly process will now include placing the sleeve over the threads of the screw to a position adjacent the screw head. The nut is then threaded onto the screw adjacent the sleeve. The drive nut's protruding nibs are next aligned and physically engaged into the driving recess of the nut head by sliding the smooth bore over the screw.

Abstract: An expandable insert secures a linkage bolt to the ends of a stabilizer bar. The insert comprises a cylindrical body portion, a cap, and an aperture. The insert is placed in the end of a stabilizer bar. As the linking bolt is torqued within the aperture of the insert, the threads of the linking bolt penetrate the insert. The torquing expands the insert outwardly towards the interior surface of the stabilizer bar, anchoring the insert inside the stabilizer bar and securing the linkage bolt to the end of the stabilizer bar.

Abstract: A wedge anchor has a shank with an expander section having a surface that forms an angle greater than 8° with respect to an axis of the shank. A plurality of longitudinal ribs project radially and outwardly from the expander section, extend along the axis of the shank, and are angularly spaced apart from each other. A tubular expansion sleeve is sleeved on a neck section of the shank adjacent to the expander section, and is formed with a plurality of axially extending slits for engaging the longitudinal ribs when the expander section is extended into the expansion sleeve.

Abstract: This invention relates to a fastener, which expands by the insertion of an expanding member, preferably a screw. The fastener comprises a substantially flat head and two expandable legs. The head has an upper side and a lower side, preferably separated by a gap. The head has also a hole on the upper side in which the screw engages. Further, the screw engages in other locations of a critical portion of the rest of the body of the fastener, thereby increasing considerably the prevailing torque required to render the screw loose, the pulling force required to break the fastener or otherwise pull the screw out of the engageable hole of the upper side of the head, as well as the stripping torque.

Abstract: A holding element 1, for fastening a component 18 to a carrier 4 having an opening 3, includes an insertion piece 2 made of a soft elastic plastics material, and a thrust part 11 made of a rigid plastics material. The insertion piece 2 is formed with a bevelled or cone shaped thrust face 12, which is held in interfacing engagement with a complimentarily bevelled or conically shaped thrust face 7 of the thrust part 11 by elastically deformable ribs 13 and 14. When a screw 15 is inserted through a longitudinal bore 8 of the insertion piece 2 and into an axially aligned bore 10 of the thrust part 11, and is tightened, the insertion piece is compressed to expand radially to anchor the holding element 1 within the opening 3 of the carrier 4.

Abstract: An expansion bolt assembly includes an elongated bolt body. The bolt body is formed with an externally threaded insert portion that is adapted to be inserted into a bore formed in a wall, and an anchoring portion that extends from the insert portion and that is adapted to extend out of the bore and to project from the wall. The anchoring portion includes an externally threaded shank and a turning unit. The turning unit is disposed on one end of the shank and is adapted to engage a tool for driving axial rotation of the bolt body. A washer is sleeved on the bolt body between the insert and anchoring portions, and is adapted to lie against the wall. A sleeve is sleeved on the insert portion and has a proximate section abutting against the washer, and a distal section opposite to the proximate section and formed with a plurality of axially extending slits. The sleeve cooperates with the insert portion to confine an annular expansion chamber therebetween.

Abstract: A blind fastener with an improved drive nut and assembly process. The blind fastener of the present invention includes a screw, a sleeve, a nut, and a drive nut. The new drive nut of this invention has protruding nibs that mate precisely with a driving recess located in the nut head. The protruding nibs of the new drive nut are not deformable and serve to replace the deformable annular ridge that was used in previous drive nut assemblies. The configuration of the protruding nibs and the recess in the nut head can be of many forms, so long as both parts are capable of being mated. Once the new assembly process for the blind fastener has been completed, the drive nut will have been mated with the nut head to prevent any rotation of the nut during installation of the blind fastener. The assembly process will now include placing the sleeve over the threads of the screw to a position adjacent the screw head.

Abstract: An attachment element for an anchor rod (14) including a substantially cylindrical expansion member (1) having an axial bore (8), and one-piece expandable member (2) extending, at least partially, into the axial bore (8) of the expansion member (1) without a possibility of disengagement from the expansion member (1) and having, at least along a portion of its longitudinal extent, a conical section tapering in a direction opposite to a setting direction (S) of the anchor rod (14), an axial bore (4), and at least two elongate slots (11).

Abstract: This invention relates to a fastener, which expands by the insertion of an expanding member, preferably a screw. The fastener comprises a substantially flat head and two expandable legs. The head has an upper side and a lower side, preferably separated by a gap. The head also has a hole (round, oblong or otherwise shaped) in which the expanding body may engage or pass through for expanding the legs and securing one object to another object, such as a plastic panel to a metal sheet. The fastener also comprises a Y-shaped funnel configuration, which has been formed by a partial cut of the legs. Miscellaneous configurations of the Y shaped legs provide improved guidance to the expanding member, improved engagement to at least one of the objects, such as the metal sheet for example, and improved engagement to the expanding member, among other advantages. The fastener may also comprise portions under the upper side of the head, which portions are engageable to the expanding member.

Abstract: The present invention relates to an orthopedic fastener for fixing an implant, suture, or tissue to a bone. The fastener comprises a blind rivet and a closing element. The blind rivet includes a head at a proximal end, a shank connected to the head, and an anchoring portion near a distal end. A bore extends through the head and shank from the proximal end to the distal end and the bore has a polygonal cross-section through the anchoring portion. The closing element has a body with an outer surface and is configured and dimensioned to be received in the anchoring portion. The outer surface of at least a portion of the closing element distal end has a polygonal cross-section flaring along the longitudinal axis toward the closing element distal end. The anchoring portion of the blind rivet severs into a plurality of anchoring legs when the closing element is pulled in the bore toward the blind rivet proximal end to thereby prevent rotation of the fastener.

Abstract: A fastener assembly is inserted into a throughhole of a composite laminate to thereby fasten the composite laminate together. The throughhole has a length extending from a first outer surface of the composite laminate to a second outer surface of the composite laminate. The throughhole has a first width at the first outer surface, a second width at the second outer surface, and a third width at a point along the length of the throughhole between the first outer surface and the second outer surface. The third width is less than each of the first width and the second width. The fastener assembly includes a substantially annular fastener device having an axial opening and a peripheral surface substantially conforming to the inner surface of the throughhole.

Abstract: A dowel includes a dowel component having at least one longitudinal slot and formed with a cylindrical internal thread; and a spreader screw for threaded engagement in the internal thread of the dowel component. The internal thread has at least one expansion zone defined by a thread diameter which is constantly smaller than the thread diameter of the spreader screw, wherein the expansion zone has a thread pitch which is the same as a thread pitch of the spreader screw.

Abstract: An expanding sleeve anchor structure includes a nail base tube cooperating with a tapered spreading member. The nail base tube has an upper section provided with a plurality of separating lines each having an elongated transverse hollow slot substantially centered thereon which is used for reducing the stress concentration of the upper section of the nail base tube when the upper section of the nail base tube is forced to expand outward resulting in complete expansion.

Abstract: A multi-component dowel for a removable anchor comprises an outer dowel sleeve and an expander with a collar gripping over an end of the dowel sleeve. The expander is movable within the dowel sleeve. There is at least one dowel sleeve ring bead arranged on an inner side of the dowel sleeve in an axial direction and tapering with respect to a symmetry axis in the direction of a plug-in opening. There is at least one expander ring bead formed on an outer wall of the expander. The expander ring bead has a pitch opposing the pitch of the dowel sleeve ring bead. There is at least one clamping element located in a free space between the dowel sleeve ring based and the expander ring bead.

Abstract: This invention relates to a fastener, which expands by the insertion of an expanding member, preferably a screw through an engageable hole of the fastener. The fastener comprises a substantially flat head and two expandable legs. The head has an upper side and a lower side, preferably separated by a gap. The fastener has a hardness within a range which improves considerably the pulling force and allows the head of the fastener to be bowable upon applying said force on the expanding member, thus resulting in a gradual rather than abrupt failure. The engageable hole may be round or oblong. Additional engagement may be provided at lower portions of the fastener for improving pulling force and/or prevailing torque. Further, an elastic body may be integrally molded at least at the lower side of the head of the fastener, and preferably throughout the head of the fastener.

Abstract: A core for forming a bone cement plug for deployment in a bone canal, the core including a base portion defining a bore having internal teeth therein and extending axially and distally from a proximal end of the base portion. A first leg portion depends from and extends distally from the base portion, the first leg portion having a first protrusion at a distal end thereof extending outwardly from an outside wall of the first leg portion through a first arc, and a second leg portion depends from and extends distally from the base portion, the second leg portion having a second protrusion at a distal end thereof extending outwardly from an outside wall of the second leg portion through a second arc and oppositely to the first arc. The toothed bore of the base portion is adapted to receive an expander member to wedge apart the first and second leg portions to expand the core widthwise to secure the core in the bone canal.

Abstract: A holding element 1, for fastening a component 18 to a carrier 4 having an opening 3, includes an insertion piece 2 made of a soft elastic plastics material, and a thrust part 11 made of a rigid plastics material. The insertion piece 2 is formed with a bevelled or cone shaped thrust face 12, which is held in interfacing engagement with a complimentarily bevelled or conically shaped thrust face 7 of the thrust part 11 by elastically deformable ribs 13 and 14. When a screw 15 is inserted through a longitudinal bore 8 of the insertion piece 2 and into an axially aligned bore 10 of the thrust part 11, and is tightened, the insertion piece is compressed to expand radially to anchor the holding element 1 within the opening 3 of the carrier 4.

Abstract: An expansion anchor installable in a pre-drilled hole formed in a base material. The expansion anchor includes a bolt having a shaft with a head portion, an opposing end portion, and a threaded portion. A shoulder is disposed on the shaft intermediate the head portion and the end portion thereof, and an expandable sleeve is disposed about the shaft between the shoulder and the end portion of the shaft. The expandable sleeve has an expandable upper sleeve portion and an expandable lower sleeve portion wherein the expandable lower sleeve portion is expandable outwardly before the expandable upper sleeve portion is expandable outwardly. A nut having a substantially conical surface is fixed rotationally in the pre-drilled hole and is engagable with the threaded portion of the shaft. The substantially conical surface of the nut is engageable with the expandable lower sleeve portion so as to expand the lower sleeve portion until the nut is axially fixes in the pre-drilled hole.

Abstract: A fitting to be detachably fastened to a furniture part includes a fitting body to abut the furniture part, at least one dowel-like expansion sleeve which is anchored to the fitting body and which can be inserted into a drilled hole of the furniture part, and a pin shaped expansion member for expanding the expansion sleeve. The expansion sleeve projects through an opening in the fitting body, and the expansion sleeve also projects through the opening in the fitting body. The expansion sleeve is provided with at least one flap that projects in a radial direction from the expansion sleeve. The expansion member is provided with a head, which, when the fitting is mounted, presses the flap onto the side of the fitting body which faces away from the furniture part.

Abstract: A plumbing tool is constructed for installing and removing plumbing parts such as tub and sink drains that are engaged together by conventional right-hand threads, one within another. The tool can also be constructed to remove or install left-hand parts. The plumbing extraction and installation tool has an elongated core member with a stud at one end, a cylindrical intermediate section threaded with right-hand threads, and an outwardly flared frustoconical section at the end opposite the stud. A barrel member is internally threaded with right-hand threads at one end and a radial channel is defined in its inwardly facing wall. This channel is bounded by a radially inwardly directed annular lip at its lower extremity. A plurality of wedge members have hooks or tangs at their upper proximal ends that are captured between the barrel member and the core member.

Abstract: A one-piece insert fastener adapted for securement within an aperture in a panel by a threaded member. The insert fastener includes a base having a top surface, a bottom surface and a pair of outwardly protruding wings. In one embodiment, the base additionally includes a single-threaded, helical edge which is shaped to define an opening. In another embodiment, the base additionally includes an internally threaded drawn barrel which is shaped to define an opening. The insert fastener also includes a pair of resilient, spaced apart legs which are formed on and protrude out from the base. Each of the pair of legs includes an outwardly angled upper section, an inwardly angled middle section and a lower section. In use, the insert fastener is disposed into the aperture in the panel until the pair of wings abuts against the outer surface of the panel. The threaded member is rotatably driven into the opening in the base, the threaded member engaging the base upon rotation.

Abstract: This invention relates to a fastener, which expands by the insertion of an expanding member, preferably a screw. The fastener comprises a substantially flat head and two expandable legs. The head has an upper side and a lower side, preferably separated by a gap. The head also has an oblong hole in which the expanding body engages for securing one object to another object. The oblong hole represents a plurality of regular generally round holes, so that it becomes easy for the fastener to be located in difficult positions of the objects to be connected. The oblong hole has sides on different planes, and each side has an edge. Preferably, at least one of the two edges contains arcs for better guidance of the expanding member. Additional engagement may be provided at lower portions of the fastener for improving pulling force and/or prevailing torque. Further, an elastic body may be integrally molded at least at the lower side of the head of the fastener, and preferably throughout the head of the fastener.

Abstract: A mounting channel member including a body having an outer surface, a pair of side edges and a pair of ends and a plurality of undercut channels extending away from the outer surface. A mounting channel member assembly wherein a plurality of mounting channel members are mounted on a supporting surface in side-by-side relationship. An anchor fastener including a body having an upper body portion and a lower body portion secured to the upper body portion, a bore in the upper body portion, and the lower body portion including first and second legs with a space therebetween with the bore being aligned with the space.

Abstract: An expandable anchor assembly removably secured to a wall, floor or other supporting structure for purposes of mounting any one of a variety of objects on the supporting structure, wherein the anchor assembly comprises an elongated sleeve including an interior, coaxially disposed channel extending along the length thereof between and in communication with open proximal and distal ends of the sleeve. A connecting structure is secured within the channel substantially adjacent to the distal end thereof and is cooperatively structured with an attachment portion of a connector, removably disposed within the channel through the open proximal end and into moveable engagement with the connecting structure.

Abstract: This invention relates to sheet metal reversed L-shaped segments, two of which may be assembled to form a T-shaped structure or fastener having a single layered head. The single-layered head has a hole engageable to an expanding member, such as a screw for example. The engageable hole is formed by two half holes, each half hole belonging to each L-shaped segment. Further, the fastener has legs, which expand upon insertion of the screw into the engageable hole. The T-shaped structure is adaptable to be securely locked in a slot of a metal sheet. This strong locking is realized by two sets of levers acting in opposite directions, and having as common fulcrum the region at the edges of the slot. One set of levers is formed by the action of the screw on the two half holes which form the engageable hole, while the other set of levers is formed by the action of the screw on the legs of the two L-shaped segments.

Abstract: A dowel including an anchor rod (2) provided at front, in a setting direction, end with a head portion (4) widening in the setting direction, and a sleeve (5) having a through-bore and axially displaceable along the anchor rod, with the sleeve (5) having, at its end adjacent to the head portion (4) an expansion region (6) formed by a plurality of expansion tabs (7) separated from each other by substantially axially extending slots (8) and radially expandable upon a relative displacement of the sleeve (5) and the anchor rod (2), and a sleeve section adjoining the expansion region (6) and having, in its rear end region (10), a larger diameter (G) than in its front end region (12) adjoining the expansion region (6), with the sleeve section having a narrowing intermediate region (11) extending between the rear end region (10) and the front end region (12) and having a smallest outer diameter (M) which is smaller than an outer diameter (F) in the front end region (12).

Abstract: A blind fastener for compressively connecting at least two overlapping workpieces including a threaded core bolt and a pull-up nut at least partially positioned within an aperture of a hollow bolt. The nut includes a larger diameter portion and a smaller diameter portion. The hollow bolt is sized to be received within aligned apertures in the workpieces and includes an enlarged head portion and a body portion extending from the head portion. The core bolt and the smaller diameter portion of the nut are positioned in the aperture in the hollow bolt such that when the core bolt is rotated with respect to the nut the larger diameter portion of the nut disrupts the body portion of the hollow bolt and the smaller diameter portion of the nut fills the space between the core bolt and the disrupted body portion of the hollow bolt to increase the shear and tensile load capabilities of the fastener.

Abstract: A blind bolt assembly for compressively connecting at least two overlapping workpieces having a hollow bolt sized to be received within aligned aperture in the workpieces. The hollow bolt includes an enlarged head portion, a grip section extending from the head portion and reduced diameter externally threaded end portion extending from the grip section. An angled ramp section extends along the hollow bolt between the grip section and the threaded end portion. A core bolt having an elongated shaft is positioned within a cylindrical hole in the hollow bolt and includes a drive head extending outside of the hollow bolt. The blind bolt assembly includes a cylindrical collar having an internally threaded section for threadable receipt of the threaded end portion of the hollow bolt and a drive section for receipt of the drive portion of the core bolt. The drive portion of the core bolt and the drive section of the collar preferably include mating splines.

Abstract: A taper nut retention device mechanically fastens a plurality of pressure reduction disks. A cage end member at one end of the stacked disks has a series of counterbores, each aligned with respective mounting holes in each disk. A second cage end member at the other end of the stack has a series of inwardly converging, tapered bores with shallow taper angles, each aligned with respective mounting holes and a counterbore. A taper nut with a threaded interior and an outer tapered surface with a shallow taper angle matching the tapered bore is inserted into and engageably contacts the tapered bore. A threaded bolt is inserted into the counterbore and through the disk mounting holes to threadably engage the taper nut. Tightening of the bolt and nut mechanically secures the stacked disk assembly. A process for making the stacked disk assembly wherein each disk and the cage end members are plated with nickel and the components are fused together in a brazing oven.

Abstract: A sleeve (1) to form one component of a fastener, comprises a body portion (2) which is externally cylindrical at (3) and is provided at one end thereof with an enlarged diameter collar (4), the body portion (2) being internally tapered down at (8) from its end (6) remote from the collar (4) as far as the face (7) of the collar (4), and the collar (4) being internally tapered down at (8) from its end (9) remote from the body portion (2) as far as the face (7). The invention also includes, in combination, a sleeve as defined above and a bolt having a frustoconical head, to form a fastener.