Abstract: A mandrel has an anti-dropping-off portion that is formed between a head and a breakable portion thereof. In the anti-dropping-off portion, a plurality of latching ridges is formed which have peaks that protrude outwardly in the radial direction and frictionally engage with the inner wall surface of a sleeve. The latching ridges are formed in the outer surface of the portion of the mandrel that is between the head and breakable portion thereof, so as to be diagonal relative to the circumferential direction of the outer surface of the mandrel and to cross each other, with the peaks thereof formed in a twill pattern protruding out from the outer surface of that mandrel portion.

Abstract: A repair process for a puncture through a plumbing pipe, the process initiates with a step of machining a puncture hole to a uniformly shaped hole having a diameter for receiving a repair rivet. The process continues by inserting and securing a blind rivet through the hole. The rivet can be sealed via any of a variety of methods, including using a solderable rivet and soldering the rivet to the pipe, utilizing a sealed blind rivet, combined with a gasket assembled between a rivet flange and the pipe surface. For two punctures, a section of coupling material can be utilized, sized to cover both punctures. The section is assembled to the pipe by inserting the rivet through both the section and the pipe, securing the rivet, then soldering the coupling to the pipe. A rivet end seal can be assembled to an end of a common blind rivet creating a watertight seal.

Abstract: In an anchor installation in a lightweight construction panel having spaced cover plates with a support core disposed therebetween, wherein an anchor installed in a bore extending through at least one of the cover plates and the support core includes an expansion body having engagement elements spreading outwardly behind the cover plate to lock the anchor in the bore, the expansion body includes an axial bore fittingly accommodating a needle for the injection of cement into the expansion body and distribution passages for the distribution of the cement to various cavities in and around the expansion body for firmly fixing the anchor in the lightweight construction panel.

Abstract: A blind rivet assembly is provided. In another aspect, a blind rivet has ends that are received within countersinks in one or more workpieces and a mandrel head is completely pulled through the rivet without being severed from a mandrel stem. A further aspect includes a mandrel with an outwardly tapering shoulder.

Abstract: There is provided a blind rivet (10) comprising an axially extending hollow tubular body (18) having a tail end face (22) at one end and a pre-formed radially enlarged flange (20) at the other end, together with a mandrel (30) having a stem (32) which extends co-axially though the body (18) and having enlarged head adjacent the tail end (22) of the body, the stem having a weakened region immediately adjacent the head, whereby the mandrel head having an outer diameter greater than an outer diameter of the body, usually by between 4% and 9%, and which has a uniform conical shoulder (38) extending between the outer diameter of the head and the stem (32), so as to exert a setting force having an axial component for compressing the rivet body axially and an angular component effecting conical deformation of the tail end radially.

Abstract: A seat comprising a seat part and a height adjustment mechanism comprising a link having a bore which comprises at least one substantially radial notch, a revolving tube having a fitting portion placed in the bore, said tube externally comprising two axial stops in contact with the link on either sides, at least one of said axial stops consisting of a bead having a stop surface in contact with the link, and a support surface opposite from the stop surface, the fitting portion externally comprising at least one bulge extending into the notch, wherein the bead comprises at least one axial indentation in the support surface, facing the notch, said indentation being adjacent to the bulge.

Abstract: Disclosed is blind rivet including a hollow sleeve, a crimping ring, and a mandrel, received by the hollow sleeve and by the crimping ring. The mandrel includes a head configured to bear against the sleeve, and a shank configured to receive a traction load from a tool. There is a breaking groove which breaks off when the traction load reaches a certain value. The breaking groove including a breaking groove bottom, a first breaking-groove-side extending from the breaking groove bottom toward the shank, a second breaking-groove-side extending from the breaking groove bottom towards the head. A first breaking-groove-side and a central axis of the mandrel define a first angle, and a second breaking-groove-side and the central axis define an angle greater than the first angle. An embrittlement groove is contiguous with the first breaking-groove-side.

Abstract: The invention relates to a blind rivet and a device for placing the blind rivet. The blind rivet contains a rivet head with a collar at one end and a rivet tip at the other. The rivet body contains a cavity in the form of a bore in a sleeve section. As with other blind rivets, the blind rivet is inserted into an opening in two sheets that are to be joined together, until the collar comes to rest on the upper face of the upper sheet. In a second step, the part of the rivet body or the rivet head that lies on the rear face of the two sheets is deformed with the aid of a hammer or expanding body, which is advanced with a percussive-type action in the same direction. A device for placing a rivet of this type contains a part that can be pushed forwards with a percussive-type action, this part consisting of a hammer for exerting pressure on the expansion body.

Abstract: A bore gripping anchor structure for attaching articles to the outer surfaces of masonry materials and other solids which is actuated by a blind rivet type installation tool. A basic embodiment has an anchor component with bidirectionally deflectable fingers (20) and a concentrically situated and slidably housed actuator device which has a stem (30) and a force applying portion, anvil (40). After insertion into a bore in a first direction, the actuator device is pulled in the opposite direction, so that said anvil (40) interacts with said fingers (20) in a manner which causes said fingers (20) to first be deflected outward and into substantial contact with the wall of the bore, and with continued pulling of said anvil (40) in the opposite direction causes the end portions of said fingers (20) to deflect inward and behind said anvil (40), to couple the anchor structure with the bore.

Abstract: The blind rivet for fastening together a plurality of mounted components with mounting holes comprises a rivet body having a sleeve, a flange and a through hole; a mandrel having a slender stem and a head; and a washer. The head of the mandrel is adjacent to the sleeve-side end portion of the rivet body, the stem of the mandrel extends through the rivet body from the flange-side end portion, and the washer is mounted near the flange on the outer periphery of the sleeve of the rivet body. A portion of the outer peripheral surface of the sleeve adjacent to the flange is swaged to form a recessed portion so that the diameter in the other position is enlarged. The washer is pushed onto the enlarged-diameter portion and secured. The mounted components are fastened together between the enlarged end portion of the sleeve and the washer.

Abstract: A blind rivet assembly is provided. In another aspect of the present invention, a blind rivet has ends that are received within countersinks in one or more workpieces and a mandrel head is completely pulled through the rivet without being severed from a mandrel stem. A further aspect of the present invention includes a mandrel with one or more ribs located on an outwardly tapering shoulder.

Abstract: A blind rivet assembly for securing workpieces having aligned bores with the workpieces having an open surface at an open side and a blind surface at a blind side, the blind rivet assembly including a tubular shell having an enlarged shell head adapted to be in engagement with the open surface of the workpieces, a stem having an elongated shank with a stem head at the far end of the shank and having gripping means at the opposite end adapted to be gripped by an installation tool for application of an axial pulling force, and a placement ring having an near end and a far end, and having a pre-installation orientation and a post-installation orientation, wherein in the pre-installation orientation the placement ring is disposed around a ring receiving portion of the elongated shank, and the post-installation orientation is created by axially pulling the stem towards the open side of the workpieces with an axial pulling force that forces the placement ring into a through bore which causes the shell to deform out

Abstract: There is disclosed a three bolt breakaway coupling adapted to be connected to either one or both ends of a flexible fluid conduit having a housing at each end that may include a valve. The breakaway coupling has two generally triangular shaped flanges where each flange has a central opening surrounded by a sealing member such as an 0 ring and an opening located at each corner of each triangular shaped flange for receiving a shear bolt. At least two of the three shear bolts which couple the two triangular flanges together will break when a specified pull at any angle is applied to the three bolt breakaway coupling. The first and second housings may contain valves for controlling the flow of a fluid through the conduit.

Abstract: The invention relates to a blind rivet and a rivet pin that is connected or can be connected to the tool and is used to apply the blind rivet. Said rivet pin can be connected, by means of a rivet positioning tool, to a part of the blind rivet designed for said tool. When the blind rivet is inserted into a hole up to the abutment of an abutment shoulder formed on a flange, said contact place can be lengthened by means of the rivet pin acting as a traction element, in order to deform the rivet pin such that it fixes in the opening.

Abstract: A mandrel has an anti-dropping-off portion that is formed between a head and a breakable portion thereof. In the anti-dropping-off portion, a plurality of latching ridges is formed which have peaks that protrude outwardly in the radial direction and frictionally engage with the inner wall surface of a sleeve. The latching ridges are formed in the outer surface of the portion of the mandrel that is between the head and breakable portion thereof, so as to be diagonal relative to the circumferential direction of the outer surface of the mandrel and to cross each other, with the peaks thereof formed in a twill pattern protruding out from the outer surface of that mandrel portion.

Abstract: A blind fastener for insertion through an aperture in a workpiece, the fastener including a pin, a sleeve and an abutment member; wherein the abutment member can be removed from the sleeve so that the pin and sleeve can be forced out of the aperture, to remove the fastener therefrom, wherein the sleeve has a radially expanding head, which is received in a recess of the abutment member and wherein, prior to insertion of the fastener into the workpiece aperture, the abutment member is secured to the sleeve by deformation of part of the abutment member adjacent the recess over and into contact with the sleeve head.

Abstract: A repair process for a puncture through a plumbing pipe, the process initiates with a step of machining a puncture hole to a uniformly shaped hole having a diameter for receiving a repair rivet. The process continues by inserting and securing a blind rivet through the hole. The rivet can be sealed via any of a variety of methods, including using a solderable rivet and soldering the rivet to the pipe, utilizing a sealed blind rivet, combined with a gasket assembled between a rivet flange and the pipe surface. For two punctures, a section of coupling material can be utilized, sized to cover both punctures. The section is assembled to the pipe by inserting the rivet through both the section and the pipe, securing the rivet, then soldering the coupling to the pipe.

Abstract: A swage-type fastener to secure a plurality of workpieces together, which includes a pin member, having an elongated pin shank to be located in aligned openings in the workpieces. An enlarged head at one end of the pin engages one side of the workpieces. A grooved pin portion extends past an opposite side of the workpieces. A collar includes a shank portion adapted to be swaged into the pin lock grooves in response to a relative axial swage load applied by an installation tool. The collar is as-headed and does not require thermal processing yet provides an optimum balance of reduced collar shank wall thickness and increased hardness, whereby the swage load is minimized. A low swage load thread form for the lock grooves of the pin member is also provided, a reduced diameter, and a relatively short pull portion pin extension.

Abstract: A low swage load fastening system is provided for installing swage-type fasteners to secure a plurality of workpieces together. The fastener includes a pin member, having an elongated pin shank to be located in aligned openings in the workpieces. An enlarged head at one end of the pin engages one side of the workpieces. A grooved pin portion extends past an opposite side of the workpieces. A collar includes a shank portion adapted to be swaged into the pin lock grooves in response to a relative axial swage load applied by an installation tool. As one aspect of the system, the collar is as-headed and does not require thermal processing yet provides an optimum balance of reduced collar shank wall thickness and increased hardness, whereby the swage load is minimized. A low swage load thread form for the lock grooves of the pin is also provided, a reduced diameter, relatively short pull portion pin extension, installation tool improvements, and an associated method of use are also disclosed.

Abstract: A blind rivet includes a hollow rivet body having a longitudinally extending indented groove. The groove may be shaped to impart rivet setting characteristics that may be varied to provide desirable fastening characteristics for joints in a number of industries. The shape of the indentation on the rivet body may be varied to cause a portion of the rivet body to collapse and form a secondary head at a predetermined longitudinal location.

Abstract: A variable grip blind rivet includes a tubular rivet body and a mandrel. The rivet body has a first shank, insertable into a hole in a workpiece, and a flange at a first end of the first shank for abutting the workpiece when so inserted. The mandrel has a head, for engaging a second end of the first shank, and a second shank adapted to extend through the axial bore of the rivet body. The head has an abutment portion for abutting the first end of the first shank, and the second shank has a first reduced diameter portion adapted to break when a predetermined tensile is loaded applied. At least one protrusion adjacent the abutment portion defines a recess for receiving the first end of the first shank during setting of the rivet.

Abstract: The present invention provides a blind bolt fastener having a core bolt. The core bolt has a threaded portion and a non-threaded portion engaging a deformable sleeve and a body. A protrusion extends from the sleeve or the body to engage a groove in the core bolt to prevent axial movement of the core bolt with respect to the body and the sleeve. An optional drive nut is positioned between a head of the body and wrenching flats of the core bolt. The drive nut has protrusions engaging mating members in the head of the body.

Abstract: A blind rivet assembly is provided. In another aspect of the present invention, a blind rivet has ends that are received within countersinks in one or more workpieces and a mandrel head is completely pulled through the rivet without being severed from a mandrel stem. A further aspect of the present invention includes a mandrel with one or more ribs located on an outwardly tapering shoulder.

Abstract: A fastener assembly is installable in an opening of a workpiece and includes an outer member and a fastener. The fastener is movable through a passageway of the outer member. The fastener includes a mandrel and a stem. The mandrel is dimensioned to radially expand the outer member. The stem has an expansion portion and a propping portion. The expansion portion radially expands the outer member after the outer member has been expanded by the mandrel. The propping portion keeps the expanded outer member in an installed expanded configuration. The outer member and fastener are installed in a single operation to reduce installation time.

Abstract: A blind rivet assembly for securing workpieces having aligned bores with the workpieces having an open surface at an open side and a blind surface at a blind side, the blind rivet assembly including a tubular shell having an enlarged shell head adapted to be in engagement with the open surface of the workpieces, a stem having an elongated shank with a stem head at the far end of the shank and having gripping means at the opposite end adapted to be gripped by an installation tool for application of an axial pulling force, and a placement ring having an near end and a far end, and having a pre-installation orientation and a post-installation orientation, wherein in the pre-installation orientation the placement ring is disposed around a ring receiving portion of the elongated shank, and the post-installation orientation is created by axially pulling the stem towards the open side of the workpieces with an axial pulling force that forces the placement ring into a through bore which causes the shell to deform out

Abstract: A fastener adapted to pass through aligned holes through workpieces is disclosed. The fastener includes a pin member having a transition portion wherein the diameter of the transition portion decreases radially as it extends from the smooth cylindrical shank portion to the threaded portion. The fastener may also comprise a sleeve member and a clamping means. The clamping means includes a collar, a nut, or any other possible clamping means. In exemplary embodiments, the workpieces can be formed with a plurality of materials, the materials including composite, metallic, or composite/metallic structures, any combination thereof. In particular embodiments, the fastener has interference capability of 0.0005 to 0.0100 inches in composite structures without risk of composite delamination or damage. As a result of the fastener interference, gaps between the fastener and the structure are eliminated thereby providing good electrical conductivity between components.

Abstract: The invention relates to a blind rivet (R) characterised in that it comprises a severing groove (130) shaped in such a way that the connection between the bottom of the groove and the outside diameter of the mandrel (100) increases more on the shank side than on the head side; a shank (120) provided with a plurality of preformed crimping grooves (140) and shaped in such a way that once the shank has been severed at the severing groove (130), part of the crimping grooves (140) extends beyond the sleeve (200); at least one weakening groove (150) on the shank; a crimping collar insert (400) is crimped into the crimping grooves (140) extending beyond the sleeve (200) using a tool (500) provided with a setting tip which can exert a pulling force on the mandrel (100) in order to bend the sleeve (200) and crimp the collar (400) on the mandrel (100). The invention is useful for attachment and riveting.

Abstract: The invention relates to a rivet (2) for connecting workpieces (11, 12), in particular a blind rivet, having a sleeve (1) with a shank (5) and a widened preformed head (13) adjoining thereto, and optionally a rivet mandrel (8) with a head (9), wherein an end of the shank (5) lying opposite the preformed head (13) if necessary can be deformed to form a driven head by drawing the rivet mandrel (8) into the sleeve (1). In order that during the placement of a rivet (2) a gap (10) between the rivet (2) and workpieces (11, 12) to be connected can be closed and a highly loadable connection can be achieved, at least one indentation (3) running axially and/or at least one slot running axially are provided in the shank (5), which indentation (3) or which slot (4) during the placement of the rivet (2) causes a radial expansion of the shank (5) of the sleeve (1) towards the workpieces (11, 12).

Abstract: The invention relates to a blind rivet and a device for placing said rivet. The blind rivet contains a rivet head with a collar at one end and a rivet tip at the other. The rivet body contains a cavity in the form of a bore in a sleeve section. As with other blind rivets, the blind rivet is inserted into an opening in two sheets that are to be joined together, until the collar comes to rest on the upper face of the upper sheet. In a second step, the part of the rivet body or the rivet head that lies on the rear face of the two sheets is deformed with the aid of a hammer or expanding body, which is advanced with a percussive-type action in the same direction. A device for placing a rivet of this type contains a part that can be pushed forwards with a percussive-type action, said part consisting of a hammer for exerting pressure on the expansion body.

Abstract: A blind rivet assembly includes a mandrel having a male threaded portion at its distal end to be screwed into an internal female threaded portion of a rivet body. The mandrel has a section of enlarged diameter adjacent the male threaded portion joined by a breaker groove to a pulling portion. The section of enlarged diameter is accommodated within an internal bore of the collapsing portion of the rivet body, the collapsing portion having a radial groove on the outer surface thereof for improving the radial expansion of the rivet when installed. A shoulder in the internal bore supports a sealing ring. When assembled correctly, the pulling portion breaks off at the breaker groove.

Abstract: A bore gripping anchor structure for attaching articles to the outer surfaces of masonry materials and other solids which is actuated by a blind rivet type installation tool. A basic embodiment has an anchor component with bidirectionally deflectable fingers (20) and a concentrically situated and slidably housed actuator device which has a stem (30) and a force applying portion, anvil (40). After insertion into a bore in a first direction, the actuator device is pulled in the opposite direction, so that said anvil (40) interacts with said fingers (20) in a manner which causes said fingers (20) to first be deflected outward and into substantial contact with the wall of the bore, and with continued pulling of said anvil (40) in the opposite direction causes the end portions of said fingers (20) to deflect inward and behind said anvil (40), to couple the anchor structure with the bore.

Abstract: A method and apparatus for attaching parts. A composite male fastening component is placed through at least a first part and a second part. The composite male fastener component preferably has a threaded portion. A composite female fastener component is positioned adjacent to and surrounding the threaded portion of the male fastener component. A portion of the composite female fastener component is caused to flow around and form into the threaded portion of the composite male fastener component. The portion of the composite female fastener component that flowed around and formed into the threaded portion of the composite male fastener component is re-solidified and re-consolidated such that the composite female fastener component is securely attached to the composite male fastener component thereby joining the mating parts.

Abstract: A blind rivet assembly is provided. In another aspect of the present invention, a blind rivet has ends that are received within countersinks in one or more workpieces and a mandrel head is completely pulled through the rivet without being severed from a mandrel stem. A further aspect of the present invention includes a mandrel with one or more ribs located on an outwardly tapering shoulder.

Abstract: The invention concerns a blind rivet (R) of the type consisting of a deformable bushing (300) and a cleavable mandrel (400), the thus formed assembly being urged to be positioned and pass through the orifices (110 and 120) made substantially coaxial and provided in at least two elements (100 and 200) to be assembled. Said rivet is characterized in that the bushing (300) consists of one single piece but preformed to have a second end (320) in two parts (330 and 340) which, under the action of an axial load (arrow F), are cleaved apart so that one part of the bushing (330) moved by the tensile load of the mandrel (400) is urged to be opened around the fixed part of the bushing (340), the expansion of the mobile part (330) called sleeve being produced without folding. The invention also concerns a method for inserting such a rivet. The invention is applicable to rivet fixing.

Abstract: A riveting structure is provided, which includes a rivet and a riveted member. A riveting portion is formed at one end of the rivet, and the riveted member has a blind hole formed thereon for accommodating the riveting portion of the rivet.

Abstract: A tension control fastener having a cylindrical shank having a pair of adjacent breakaway sections at one end. The outermost breakaway section engages an installation tool and shears off from the fastener at a first lower predetermined amount of torque, while the inner breakaway section shears off from the fastener at a second higher predetermined amount of torque.

Abstract: The invention relates to a blind rivet (R) of the type which is used to position at least two elements (100 and 200) alongside one another and to fasten same and which is installed using an installation tool. The invention is characterised in that it comprises a bushing (300) which is made from one single piece and which is preformed from a single tapered part (330) that is located between the two support surfaces (311 and 321), with the elements to be assembled being defined initially or by means of deformation by the bushing. The invention also relates to a method of removing said rivet.

Abstract: A blind rivet which includes a stem, a sleeve and a locking collar. The stem includes a head or plug portion, and the plug portion includes one or more grooves or depressions which provide that lower installation forces can be used to install the blind rivet, and if a sealant or paint is used, provide a type of escape mechanism for the sealant or paint to travel to during installation of the blind rivet. The grooves or depressions may vary in number and take on any number of shapes and sizes. For example, they may be longitudinal and may get wider and/or deeper toward the end of the stem.

Abstract: A clamp and a method for installing the clamp into at least two work pieces is provided. The clamp has a shank keyed to an expander. The expander engages the core bolt such that rotation of the core bolt bulbs the expander to clamp the work pieces. A spacer engages the shank to prevent rotation of the shank during installation. The shank has a flange fracturing at a predetermined compression load. The core bolt optionally has a first and a second break groove fracturing at predetermined compression loads. A nut is optionally provided to engage the spacer.

Abstract: A blind rivet design has an exposed mandrel portion modified from the conventional and standardized mandrel to reduce amount and cost of materials required to produce the mandrel, while also minimizing costs related to production, use, and spent mandrel disposal, all while still making use of conventional riveting tools for rivet setting and maintaining rivet performance. To work with the inventive blind rivet design, a conventional riveting tool, i.e., a rivet gun with a replaceable nosepiece, may be utilized, with a modified nose housing attached. The replaceable nosepiece and modified nose housing on the conventional rivet setting tool enables use of a mandrel having a reduced exposed mandrel portion relative to conventional and standardized mandrels. In addition, a modified stepped approach to setting the rivet may also be utilized in conjunction with the inventive rivet design to enable use of an even further reduced exposed mandrel portion.

Abstract: The present invention is directed to a blind fastener, usually a blind rivet, (10) comprising a mandrel (22) and an elongate cylindrical body (16) mounted on a stem (24) of such mandrel so as to extend co-axially about a central axis A of such blind rivet, the body (16) having a flange (18) at one end and a tail end (20) at an axially opposed end, for insertion through a hole in a workpiece, the mandrel having a mandrel head (26) in operative engagement with this tail end (20) for transmitting force thereto during setting of such fastener, wherein the body (16) has two different external diameters (d, D) and a radially extending shoulder (32) therebetween such that the external diameter (D) of the body adjacent to the flange (18) is greater than the external diameter (d) of the body adjacent to the tail end, wherein the body between this shoulder (32) and the flange is at least partially encased in a resilient, shock absorbing material (36).

Abstract: The following describes an apparatus for and method of clamping a device, such as a fuel injector, to a platform, such as a cylinder head, and thereafter removing the device from the platform together with the clamp. A retaining sleeve is deformed such that the retaining sleeve is held in place between the clamp and a ledge on a fastener disposed within the clamp. The retaining sleeve secures the fastener to the clamp during removal of the fastener, thereby providing that the clamp assembly and the device, such as a fuel injector, are removed together.

Abstract: A river body (40) is formed with cutting teeth (68) in a forward edge (66) of the rivet body. A mandrel (96) is formed at a forward end with an enlarged head (104) having a drill point (60) thereon. A plurality of the rivet bodies (40) are stacked on the mandrel (96), with the drill point (60). The rivet body (40a) is rotated and, through rotative coupling, the mandrel (96) is also rotated. The rotating drill point (60) forms pilot holes I workpieces (186) and (188), and the rotating cutting teeth (68) enlarge the pilot holes to form holes (192) and (194), respectively, for receipt of a cylindrical portion (42) of the lead rivet body (40a).

Abstract: A blind fastener for securing a plurality of workpieces is provided that has a sleeve, and a pin member. In an alternate embodiment, the blind fastener has a sleeve, a pin member and a nut. The sleeves have a head with a plurality of rearwardly sloping recesses disposed therein. The recesses are adapted to be engaged with a plurality of rearwardly sloping nibs disposed on one end of a nose secured to an installation tool. The pin members have a splined head adapted to be engaged with a splined driver secured to an installation tool. Use of the splined head on the pin member, the splined driver, rearwardly sloping recesses on the sleeve, and rearwardly sloping nibs on the nose eliminates camming out of the nibs from the recesses during installation of the blind fastener. A nose assembly for installation of the blind fastener is also provided.

Abstract: The current invention is directed to a three piece blind fastener comprising a mandrel 40, a tubular body portion of 10 and a radially extending flange 14, wherein the cylindrical body 10 is mounted on an elongate stem 42 of the mandrel so as to extend co-axially about a central axis of such blind fastener, and the mandrel having a mandrel head in operative engagement with a tail end of the body for transmitting force there to during setting of the fastener, wherein the radially extending flange is separate from and held in crimped engagement with the body portion at or towards a front end of the tubular body so as to be axially remote from the tail end of such body.

Abstract: A blind rivet nut has a head configured as an annular flange and a shank comprising a head end, a foot end and a cylindrical bore closed at the foot end of the shank and extending from the head end to the foot end in lengthwise direction, and a second bore segment near the head end whose diameter is greater than the diameter of the first bore segment. The wall surrounding the second bore segment forms a plastically deformable region of the shank, and has an outer surface with the shape of a regular polygonal, in particular hexagonal, prism. To achieve a uniform and tightly sealing contact of the flange with the part accommodating the blind rivet nut, the wall thickness of the deformable region in the thinnest places is 4% to 6% of the least outside diameter of the deformable region.

Abstract: An open-end blind rivet (210) comprises a headed mandrel (218) with a substantially tubular rivet mounted thereon with a flowable sealant (250) disposed between the mandrel and the rivet whereby setting of the blind rivet compresses the sealant between the head (216) of the mandrel and an inner surface of the rivet to form a seal therebetween.

Abstract: A composite fastener and method for fastening structural members are provided. The fastener is formed at least partially of a composite material. For example, at least one component of the fastener can be formed of a composite material and the remaining components of the fastener can be formed of a metallic material. The fasteners can be compatible with the materials of the structural members to be fastened or joined, such as where all or at least one of the structural members are formed of a composite material. In some cases, the fastener can be installed blindly from one side of the structural members with no or limited access to the opposite side.

Abstract: The invention relates to a blind rivet, a rivet pin, a holding device, a method for producing a blind rivet and a method for creating a riveted joint which enables a permanent joint to be produced between several workpieces in one working cycle.

Abstract: A temporary fastener that fastens two adjacent workpieces. The fastener includes a shank that extends through a hole of the workpieces. Extending from one end of the shank is a conical shaped head. The fastener also contains a pull stem which has a head located adjacent to the blind end of the shank. The stem head is pulled through the shank to expand and tightly fasten the shank to the workpieces. The fastener is removed by drilling through the head and the shank. The diameter of the conical shank head is smaller than the diameter of the drill so that part of the head does not become attached to the drill bit and scratch the workpiece. The conical shape of the head also reduces the volume of fastener material to further reduce the size and amount of chips produced during the drilling process. The tightly engaged shank prevents the fastener from rotating during the drilling operation.