Abstract: A fastener includes a fastener body with a peripheral surface that is configured to be received in a mold assembly. The body is divided into an encased portion and an exposed portion. The encased portion is configured to be surrounded by molding material. The exposed portion is configured to be void of molding material. A crush rib extends along at least a portion of the peripheral surface at an interface between the encased portion and the exposed portion.

Abstract: In order to provide a combination of a screw member comprising a screw head, a threaded portion and a shank portion which is arranged between the screw head and the threaded portion and has an external diameter that is smaller than the external diameter of the threaded portion, and also a sleeve which incorporates a narrowed section the internal diameter of which is smaller than the external diameter of the threaded portion, whereby said combination is producible in a simple manner but nevertheless ensures that the sleeve is held securely on the screw member, it is proposed that the sleeve be in multipart form at least in the narrowed section thereof, that the shank portion of the screw member be passed through the narrowed section of the sleeve and that the several parts of the sleeve be connected to one another in such a manner that the sleeve is held captive on the screw member.

Abstract: In order to provide a sleeve comprising a sleeve base body and a flange that is produced separately from the sleeve base body and protrudes in the radial direction beyond the sleeve base body, which is producible in a simple manner but nevertheless ensures secure retention of the sleeve base body and the flange, it is proposed that the sleeve base body comprise at least one projection which engages in a recess provided in the flange, wherein the sleeve base body is pressed against the flange in such a manner that the sleeve base body and the flange are connected together in captive manner.

Abstract: A device for fastening an attachment to a measuring tube of a Coriolis mass flowmeter, comprising a clamping part, which can be pushed onto the measuring tube and can be pressed against the measuring tube by clamping means, the clamping part being formed in the manner of a slotted conical hollow screw, which interacts with a corresponding cone nut as a clamping means in such a way that, when the cone nut is screwed onto the clamping part, the inwardly directed radial force created as a result presses the clamping part against the measuring tube.

Abstract: A fastening structure includes a bolt, a fastened member, and gasket material. The fastened member has a bolthole into which the bolt is screwed, and a communication hole that extends from the bolthole to a space other than the bolthole. At least a part of a gap between a thread of the bolt and a thread of the bolthole, and at least a part of the communication hole are filled with the gasket material.

Abstract: An anti-seizing composition that facilitates securing fasteners in an assembly, e.g., a nail that is driven by a hammer or a threaded nail or screw that is screwed into a coupling, a nut, or a building block, etc. In one embodiment, the composition comprises a sufficient amount of boron nitride, which upon application on the contact surface of the fastener, allows the fastener to be quickly secured without seizing and/or galling. The invention further relates to a method for securing fasteners in an assembly by applying an effective amount of boron nitride powder composition onto the contact surface of the fasteners, i.e., the pointed end or the threaded surface of the shank.

Abstract: Improved bone anchors are disclosed for anchoring one or more sutures attached to soft tissue to a bone. The bone anchor has an anchor body that extends between a distal and a proximal end. A bore is formed axially in the anchor body and opens at the proximal end. One or more pins are fixed within the bore of the anchor body. One or more sutures can be looped on the pins for anchoring soft tissue to bone. The anchor body has a socket within the bore for receiving a driver tool. The distal end of the anchor body forms a non-threaded extension, which stabilizes the bone anchor, and helps prevent lateral movement during use. In one embodiment, the anchor body has coarse threads for engaging soft bone tissue and fine threads for engaging hard bone tissue.

Abstract: A fastener includes a threaded shaft and a grippable head secured to the threaded shaft. An aperture extends through the shaft toward the head. The aperture extends partially through the head. In some embodiments, the shaft includes both threaded and unthreaded portions. In such embodiments, the aperture may extend slightly past the threaded portion into the unthreaded portion, such that it spans the point of stress concentration between the threaded and unthreaded portions. In yet another embodiment, a threaded fastener having a head and a threaded shaft has an aperture extending through the head and partially through the threaded shaft. The aperture has a diameter substantially equal to a width of a recess sized to receive a wrench. The aperture may have a shape such that it can also be gripped by a wrench.

Abstract: A fastener for installation into an interference fit hole within a structure. The fastener may be installed through automated installation methods. The fastener includes an enlarged protruding head at a proximal end of the fastener. Distal the head is a substantially cylindrical shoulder portion. The shoulder portion is coated with a lubricant to facilitate insertion of the shoulder portion into the interference fit hole within the structure. A threaded portion having a male thread is positioned distal to the shoulder portion. An aperture having a curved shape and extending into the fastener is positioned on a distal face of the fastener. The aperture may taper proximally into the fastener.

Abstract: A screw member comprises a screw shank portion and a thread portion provided thereon. The screw shank portion has a bottom end formed with a tapered section, and a top end formed with a screw head portion. The thread portion is provided on an outer circumference of the screw shank portion. The thread portion includes a first thread section proximate the tapered section, and a second thread section proximate the screw head portion. The first thread section has a first thread angle of a sharp-edged thread smaller than a second thread angle of the second thread section such that the first thread section is easier to cut a rigid material.

Abstract: A structure and a method of preventing electrolytic corrosion for a magnesium alloy member (20), the structure wherein a first coated layer (11) formed by electro deposition and a second coated layer (12) formed by distributing PTFE particles on the first coated layer (11) are covered on the surface of a tightening member (1) at least on a surface coming into contact with the magnesium alloy member (20), whereby, the electrolytic corrosion of the magnesium alloy member can be prevented at a low cost by insulating a tightening member such as a steel bolt and a washer from the magnesium alloy member, and an adhesiveness therebetween can be sufficiently assured.

Abstract: The disclosure relates to a corrosion resistant article comprising a metal body and a protective coating applied on at least one surface of said metal body, said protective coating comprising: (a) a zinc layer comprising metallic zinc; (b) a silicate layer comprising at least one silicate; and (c) a lubricant layer comprising at least one lubricant such as, for example, polyethylene wax. In particular, the disclosure relates to a corrosion resistant bolt and/or nut having a protective coating for use in motor vehicles. The protective coating is substantially free of chromates and phosphates and, hence, environmentally acceptable. The article has an excellent coefficient of friction, temperature resistance and anti-corrosion properties.

Abstract: The present invention provides for a bolt structure for use with a magnesium alloy member that can insulate between magnesium alloy members and steel or other bolts without lowering the bolt shaft power, and prevent occurrence of electrolytic corrosion with an electrolyte such as water. A cationic electrodeposition coating is also provided for the bolts structure, said coating having a film thickness of 15 ?m or more is provided at least on the surface of the magnesium alloy member contacting with a bolt head, a powder coating having a film thickness of 40 to 150 ?m is provided on the surface of the cationic electrodeposition coating, zinc-nickel plating and then cosmer treatment are carried out on the bolt, and an alumite-treated aluminum washer is interposed between the bolt head and the magnesium alloy member.

Abstract: The shaft is connected to the shaft attachment by a thread. A bore with an internal thread is incorporated in the shaft attachment and the shaft has a corresponding stem which can be introduced into the threaded bore and has an external thread. An axial stop is arranged on the shaft and on the shaft attachment. The internal and external threads have torque-transmitting flanks which are flat toward the axis and which can be connected to one another frictionally by radial pressure by mutual rotation of shaft and shaft attachment with interaction between the axial stops. Owing to the small angle between the load-bearing flanks and the axis, the radial pressure decisive for the torque transmission is correspondingly greater than in conventional threaded connections. As a result, the axial prestressing force between the two parts to be connected can be correspondingly reduced.

Abstract: A back light assembly for a liquid crystal display device includes at least one or more diffusion plate supporting members disposed between a reflection sheet and a diffusion plate, and having a complex structure including an elastic material in contact with the diffusion plate, the diffusion plate supporting member preventing the diffusion plate from dropping down.

Abstract: A tension control bolt includes a shank, the shank including a threaded section and a breakaway section, and a bolt head, the bolt head constructed with a wrenching section and a flange section intermediate the wrenching section and the shank, the flange section having a generally circular bearing section, the diameter of the bearing section exceeding the distance between opposed flat wrenching surfaces of the wrenching section.

Abstract: The invention relates to a fixing device, such as a screw (1) a plain washer, a nut or a rivet, with an information memory that can be read from the exterior. The information memory (4) is machine readable. According to the invention, the information memory contains optically readable information.

Abstract: A bolt for use in for mounting a backrest to a motorcycle or otherwise for attachment to a surface includes a shank, and head, and a transverse recess transverse to the longitudinal axis of the shank for holding the head while a nut is being tightened on the bolt.

Abstract: A fastener includes a head, a threaded member, and a resilient shank portion interconnecting the head portion and the threaded portion. The shank portion includes a first end adjacent the head and a second end adjacent the threaded member. The shank includes a tubular section having an inner wall and an outer wall between the first end and the second end. The tubular section has a curved axial profile. The tubular section is axially elastically deformed as the fastener is torqued down.

Abstract: This invention relates to an improved component for a plasma processing system, and more particularly, to fasteners for internal chamber parts in a plasma processing chamber. Further, this invention relates to a method of manufacturing such a fastener.

Abstract: A threaded fasteners combines two or more of (a) a self-drilling tip that is long enough and/or sufficiently distanced from the threads to assure that drilling action is complete before the first thread engages the surface of the work piece, (b) high-low threads, and (c) a factory pre-applied adhesive/sealant. Such fasteners are especially advantageous in applications where connections to fiberglass are needed, and especially in applications such as boats or other transportation vehicles where leaks resulting from drilled cavities are problematic.

Abstract: A bolt made from shape memory alloy that exists in a first state and is capable of changing to a second state when heated and remains in that second state even when cooled is used to self torque itself and clamp a first fixture to a second fixture. Preferred methods for using the self-torquing bolt are disclosed.

Abstract: A jackscrew for use in securing electronic assemblies preferably includes a threaded shaft, a head at one end of the threaded shaft, and a protective coating disposed on the threads of the threaded shaft. The protective coating prevents fragments from being dislodged from the jackscrew.

Abstract: A fastener for installation into an interference fit hole within a structure. The fastener may be installed through automated installation methods. The fastener includes an enlarged protruding head at a proximal end of the fastener. Distal the head is a substantially cylindrical shoulder portion. The shoulder portion is coated with a lubricant to facilitate insertion of the shoulder portion into the interference fit hole within the structure. A threaded portion having a male thread is positioned distal to the shoulder portion. An aperture having a curved shape and extending into the fastener is positioned on a distal face of the fastener. The aperture may taper proximally into the fastener.

Abstract: A fastener is embodied as a bolt having a shank with a threaded portion for introduction through an aperture in a work piece is disclosed. The fastener is divided into exposed and unexposed portions when used in the work piece. The fastener comprises a first coating formed on the exposed portion and a second coating formed on the unexposed portion. The first and second coatings are mechanically distinct from each other and substantially non-overlapping. The first coating provides a decorative coating on the fastener. The second coating provides a proper torque-tension relationship between the work piece and the unexposed portion. The second coating deposits relatively uniformly to ensure the unexposed portion will not become oversized. An auxiliary coating may further be applied to all or a portion of the unexposed portion, beneath the second coating. The fastener may also be embodied as a nut, a bolt-lock structure, or a lock nut.

Abstract: A fastening device and method for fastening at least two objects, such as bone portions, together in a desired alignment. The fastening device includes a securing member, such as a bone screw (10), having a head (11), a shank (12), and an end region (14) distal the head (11). The device also includes a guiding means, such as guidewire (20), comprising at least an elongate member. The guidewire (20) is connected to or formed integral with the end region (14) of the securing member (10). The device and method is especially useful in circumstances where it is desirable or, in fact, crucial for the objects to be so fastened in a particular and/or specific alignment. The device is also beneficial for use in fastening together any or all portions of bone surrounding a fracture site.

Abstract: The invention relates to a screw for a screw-type solid bowl centrifuge that is characterized in that additional leaf segments (29) are disposed in some sections of the conveyor path (7) between adjacent spirals (x, x+1,). The screw leaf (5), in the area of the screw leaf segments (29), is preferably provided with recesses (27) that are adapted to allow the material to be extracted (S) to pass between adjacent spirals (x, x+1,). The screw according to the invention is especially suitable for use in a method for producing oil from fruit and seeds and for better dehydrating and/or deoiling mashes of organic materials (for example mashed seeds, fruit pulp, animal tissues such as fish, egg, fatty tissue cells).

Abstract: A circulation member of a ball screw for circulating a ball rolling on a spiral ball rolling groove formed on a screw shaft comprises a central portion and a pair of leg portions disposed at both ends of the central portion so as to extend therefrom and so that free ends of the leg portions are disposed in the spiral ball rolling groove at different positions to thereby form a ball circulation passage. The leg portions have inner peripheries having center lines inclined in directions different from each other with respect to a center line of an inner periphery of the central portion.

Abstract: A depth assembly for use with a hand-held power tool (2) and including a motorized control unit for adjusting a position of a depth-setting member (3) and connectable with an energy source (4) which supplies power thereto, and a micro-controller (6) for controlling the operation of the control unit (5) and connected with a length-determining sensor.

Abstract: A process for making a fastener having a shank with a head and a flat tip. A polymeric coating is applied to the tip of the fastener. The coating forms a parabolic bubble and is subsequently cured. The bubble prevents damage to a decorative coating of a vehicle during installation of a component in which the fastener is utilized. The disclosure is further directed to the fastener which is produced by the process.

Abstract: A specially designed bolt fastens together two parts of an engine and in particular can fasten together two components of a rocker arm assembly. The bolt is in a bore passing through the two components. The bolt has a full-diameter pilot that closely fits with the bore at a location where the components mate, and thereby locates the components relative to each other. On opposing axial sides of the pilot are reduced-diameter shank portions of the bolt, which form cylindrical gaps with the bore. The pilot has groove communicating the cylindrical gaps, whereby the gaps and grooves form an oil flow path along the bolt. A duct in each component communicates with a respective one of the cylindrical gaps, so that oil flows through one component, along the bolt and then into the other component.

Abstract: The present invention provides a bolt tightening structure of a magnesium alloy member capable of insulating between magnesium alloy members and steel or other bolts without lowering the bolt shaft power, and preventing occurrence of electrolytic corrosion if contacting with electrolyte such as water. This is a bolt tightening structure of a magnesium alloy member for tightening magnesium alloy members with each other or a magnesium alloy member and a heterogeneous material by means of a bolt. Cationic electrodeposition coating having a film thickness of 15 &mgr;m or more is provided at least on the surface of the magnesium alloy member contacting with a bolt head, a powder coating having a film thickness of 40 to 150 &mgr;m is provided on surface of the cationic electrodeposition coating, zinc-nickel plating and then cosmer treatment are carried out on the bolts, and an alumite-treated aluminum washer is interposed between the bolt head and the magnesium alloy member.

Abstract: The invention is one to provide a part mounting bolt, which is favorable in work efficiency since a latch member mounted on a pivot section does not fall off and there is no need of fitting the latch member onto the pivot section manually, in which a gear of resin is insert molded on an upper region of an external thread of a metallic bolt body to rotate a bolt about an axis, the part mounting bolt comprising a pivot section formed integrally on one end of the bolt body and made of the same material as that of the bolt body, and a latch member of resin integrally insert molded on the pivot section to fix a part on a mounted member.

Abstract: A fastener (10) being pressable into a metal sheet in a way safe against rotation and pressing out having a head (12), the side of which after insertion facing the metal sheet is having radially positioned ridges (22), which, when setting the fastener (10), are pressed into the metal sheet, wherein a cylindrical thread-carrier (14) is positioned in the center of said ridges (22) projecting through the metal sheet beyond the other side of the metal sheet and which in the vicinity of the side of the head (12) facing the metal sheet in the set state is having a surrounding annular recess (20) into which the material of the metal sheet displaced during the setting can be pressed.

Abstract: A wind tunnel blade (30) connected to a base (32) and held in position by a two-piece cuff (34). The wind tunnel blade (30) is formed in a resin transfer molding process in which central, fore, and aft foam core sections (70, 72, 74) are placed together to form the wind tunnel blade (30). Radius fillers (120) are used to fill the gaps between the outer edge of the foam core sections. The radius fillers (120) used in the wind tunnel blade (30) are formed by a braided sleeve (122) surrounding a number of unidirectional tows (124). A tip (68) is formed separately from the rest of the wind tunnel blade (30) and is glued to the top thereof. Stacked layers of braided fibers (100) are used to reinforce the central core section (70).

Abstract: A wind tunnel blade (30) connected to a base (32) and held in position by a two-piece cuff (34). The wind tunnel blade (30) is formed in a resin transfer molding process in which central, fore, and aft foam core sections (70, 72, 74) are placed together to form the wind tunnel blade (30). Radius fillers (120) are used to fill the gaps between the outer edge of the foam core sections. The radius fillers (120) used in the wind tunnel blade (30) are formed by a braided sleeve (122) surrounding a number of unidirectional tows (124). A tip (68) is formed separately from the rest of the wind tunnel blade (30) and is glued to the top thereof. Stacked layers of braided fibers (100) are used to reinforce the central core section (70).

Abstract: A method and apparatus for attaching a RF/ID transponder to an object is described. The transponder is integrated within an attaching device to protect the transponder from damage, hazardous environments and tampering. Further, by integrating the transponder within the attaching device, the device can be countersunk to further protect the transponder. Further still, manufacturing the device from a non-ferrous material prevents degradation of the transponder reading range.

Abstract: A method of fastener identification for traceability of manufacturing information of an individual fastener, is achieved by applying a code to the fastener. The fasteners to be identified typically are formed of hardened materials such as steel. A die cast, forged or pressed roll stamp or forge stamp is thus used to apply the code and is formed with a raised stencil of one or more characters or indicia. Multiple lots of a certain fastener typically are manufactured in a given time period, such as a year, thus requiring a different code to identify each fastener lot. Numbers of lots and sizes of individual lots for a given time period are difficult to predict for a fastener producer, thus risking waste if multiple customized stamps are used to identify the lots. A universal stamp having a single indicia stencil is utilized to identify all lots of a certain fastener in a given time period, by removing selected ones of the stencil characters from the universal stamp for each different lot.

Abstract: A biangular countersink in a skin panel to be joined to an underlying support member includes a frustoconical base portion defining a large included angle and an extremely shallow outer portion cut at a very small acute included angle. Fasteners usable with the countersink have heads with frustoconical undersides matching the deeper base portion of the countersink and rounded heads sized to fit within the shallow, acutely angled outer portion of the countersink. The combination of fastener and biangular countersink reduces annular grooves or "halos" which typically are formed around conventional flush head fasteners.

Abstract: A construction system having structural members with pre-manufactured rows of holes for fastening. A first kind of structural member (33, 35 and 35a in FIG. 2) has a row of holes equally spaced at a distance N. A second kind of structural member for diagonal bracing (43 in FIG. 2) has a row of holes equally spaced at a distance equal to the length of the hypotenuse of a right triangle with the other two sides having a length of N or a multiple of N. A third kind of structural member (24 in FIG. 2) has two rows of holes equally spaced at a distance N, with the holes of one row perpendicularly intersecting the holes of the other row. Large diameter fasteners (60 in FIG. 8), with a cross-hole for a crossing fastener, allow mounting two or more structural members at the same longitudinal disposition to perpendicular sides of a structural member of the third kind.

Abstract: A fastener component, such as a nut, has size indicia thereon. The size indicia is used to identify the size of the tool to be used in attaching, adjusting or removing the fastener, a dimensional size of the fastener, or both.

Abstract: A transport anchor for transporting a heavy part, which anchor is embedded in the heavy part, includes a sleeve having an inner thread for receiving a load bearing member. The sleeve has a first section with an exterior end face positioned flush with the exterior surface of the heavy part. The sleeve has a second section with a receiving member for an anchoring element of the heavy part. A first plug with an outer thread is threaded into the inner thread of the sleeve and is moveable along the inner thread. The first plug has a plug end face facing outwardly relative to the heavy part. The load bearing member can frictionally engage the plug end face of the first plug. The load bearing member has a base body with an outer thread for cooperation with the inner thread of the sleeve.

Abstract: The surface layer of a hard austenitic stainless steel screw is formed as nitrided layer and then is covered by a plating coat or a resin coat to give properties such as shortening the boring time as well as heightening the surface hardness of the screw itself.

Abstract: A fastener component has size indicia thereon. The size indicia is used to identify the size of the tool to be used in attaching, adjusting or removing the fastener, a dimensional size of the fastener, or both.

Abstract: A method and apparatus for patching a hole in a panel without the use of a bonding agent or the aid of a welding apparatus. The method encompasses the placing of a patch within the confines of a hole. The patch is of a configuration which is within a close tolerance of the hole and of the same thickness as the thickness of the panel. This provides a flush inside surface and a flush outside surface upon the completion of the repair. The patch is temporarily secured with supports and bores are drilled around the periphery of the patch which communicate with both the patch and the panel. These bores are tapped to accommodate a segmented threaded rod. The depth or thickness of each threaded segment is almost equivalent to the thickness of the panel. The segmented threaded rod is threaded into the hole until it is flush with the inside surface. Each consecutive segment is separated by a core.

Abstract: A shoulder screw having a centrally positioned borehole concentric with respect to the longitudinal axis of the screw and a cylindrical center-tapped bolt receiver loosley positioned within the centrally positioned borehole of the shoulder screw and coupled thereto by a roll pin positioned perpendicularly with respect to the axis of said shoulder screw, the diameter of the bolt receiver being less than the diameter of the borehole, for enabling the bolt receiver to translate in a direction transverse to the axis of the shoulder screw.

Abstract: This invention deals with a device which is useful for the securing of roof structures, especially laminar type roof structures wherein an integral, obstensibly waterproof, covering is used as part of the laminar structure. It also deals with a unique method of detecting leaks in roofing structures which allows the location of such leaks with a certain preciseness by using the fastening devices of this invention as points of reference.

Abstract: A panel for assembly for closing off an irregularly configured hole in a panel. The assembly has a housing with a head at one end and a shaft at the other end extending through the hole with a plunger mounted in the housing. A spring biased plate configured to the hole is mounted on the outside of said housing. The plate is fixed to the plunger so that it moves when the plunger is moved. The plunger is indexed to the housing so that it can move first in an vertical direction to a position where the plate is spaced from the head of the housing, then be rotated to a position whereby the plate also rotates with respect to the housing. In this manner, the plate can move first from the hole in the panel to a position away from the hole in the panel.

Abstract: The invention relates to a bolt for orthopaedic surgical use which can be combined with an external fixing device such as for example a monoaxial extender, having a substantially cylindrical upper portion 10 whose upper end 14 can be engaged by a suitable turning device. The bolt extends into a central portion 11 whose lateral surface has a cutting member 16 which extends parallel to the longitudinal axis of the bolt along the entire length of portion 11. Portion 11 then passes into a lower threaded portion 12 which ends in a point 13. Central portion 11 has a transverse cross-section substantially in the shape of a drop.

Abstract: A T-nut is disclosed for accurately affixing work beds to the base of a machine. The preferred nut comprises a generally flat head; a shank that is integral with and extends upwardly from the head; and a pair of furrows --one on each side of the shank, at its juncture with the head. The furrows are designed to straddle the burrs sometimes found in the T-slots of a machine base, so that the nut will sit flush within the slot, rather than be canted.