Abstract: A support element (S) for supporting implants (I), such as dental implants, the support element comprising a bar (S1) and a plurality of pins (S5) that are fitted to the bar (S1) and that are arranged parallel to one another, each pin (S5) defining a free end that is provided with reception means (S8) that are suitable for co-operating with the implant (S) so as to hold it on the reception means (S8) of the pin (S5), the bar (S1) including at least one mounting end (S4) for mounting the bar (S1) on another support device, thereby forming a support structure; the support element being characterized in that each pin (S5) is provided with a removal system (S9) for removing the implant (S) from the reception means (S8), without coming into contact with an exposed portion of the implant (S).

Abstract: Various embodiments of the present disclosure provide a nail with a head having an inwardly curved top surface. In one embodiment, the nail has a longitudinal axis and comprises a head, a shank, and a tip. The head includes a top portion and a bottom portion. The top portion includes an inwardly curved top surface forming a partially spherical cavity, while the bottom portion includes a radially inwardly tapered annular bottom surface. The shank is integrally connected to and extends from the bottom portion of the head. The tip is integrally connected to and extends from the shank and terminates in a free end.

Abstract: A rivet screw drill for fastening at least two panels, the rivet screw drill includes a head portion mounted to a fastening tool, a fastening portion integrally formed with the head portion and of which a screw thread is formed thereto and a perforating portion integrally formed with the fastening portion and pressurizing and penetrating the panels by rotation according to operation of the fastening tool, wherein a mounting protrusion, connected to the fastening tool, is protruded from the head portion and a plurality of support ends are formed to the mounting protrusion.

Abstract: A fastener comprises a shank having a first end having a point and a second end having a head. The shank includes a first region beginning at the first end and having a cylindrical cross-section with a first diameter along at least a portion of the first region; and a second region extending from the first region to the head and having a cross section with a second diameter greater than the first diameter. The first region may include a distortion adjacent the tip encompassing at least a portion of a surface of the first region, the distortion having a third diameter greater than the first diameter and less than or equal to the second diameter.

Abstract: A self-tapping screw includes a head and a shank extending from the head. The shank includes a cylindrical shank immediately below the head and a truncated conical shank following an end of the cylindrical shank. The cylindrical shank is provided with a plurality of first external threads, the truncated conical shank is provided with a plurality of second external threads following the first external threads, and a peak of each of the second external threads is provided with a biting surface having a concave-convex form.

Abstract: An asymmetric thread impact drivable screw and clip for use with a power impact device for penetrating wood fibers while minimizing cut fibers. The screw includes an impact head and a conical shaped tip having a ballistic insertion angle at the ends of a shank. The shank defines asymmetrical threads with an insertion flank having a long side at a slide angle peaking at a crest supported by a catch flank positioned at a grip angle. Varying tool accepting recess are taught for the head along with multiple thread sections. A mushroom compaction thread section is also taught.

Abstract: A dental implant device for insertion into a bore defined in bone for use with a prosthetic tooth or dental appliance includes an abutment with a plurality of male keys disposed about the distal end of the abutment capable of being affixed to the prosthetic tooth or dental appliance, an implantable anchor having a proximal and distal end, a plurality of female keyways defined into the proximal end of the anchor, the keyways capable of coupling to the male keys of the abutment and thereby preventing relative rotation of the abutment and anchor; an interlocking thread helically defined around a longitudinal axis of the anchor, the thread being adapted to couple to the bore defined in the bone and means for coupling the abutment to the implant anchor.

Abstract: A screw device for fixing insulating panels together is made in one piece from synthetic material and includes a head and a shank. The head has a flat surface for abutment on one of the insulating panels, a surface opposite the abutment surface having at least one drive wing, which extends to a distance greater than 10 mm from the opposite surface. The shank includes an elongate body extending from the head and substantially perpendicular to the abutment surface. The screw has a point arranged at an end of the body opposite the head, and at least one helical thread, which extends at least over part of at least one of the point and body, and is spaced from the head. The helical thread has a diameter that increases towards the head, a portion having a frustum-shaped envelope, and a pitch greater than 8 mm.

Abstract: A fastening element, which may be in the form of a blind rivet or a screw, is intended to be driven into an unperforated workpiece. In its front region that is intended to be driven into the workpiece, it includes a punching tip which is formed in a cylindrical manner and has a front end face which extends obliquely to the longitudinal axis. The punching tip may be smaller in diameter than the body of the fastening element or else have the same diameter. The section between the end face and the outer side of the punching tip forms a circumferential edge. On account of the oblique profile of the end face, this circumferential edge is arranged such that when the fastening element is driven in, the circumferential edge first of all strikes the metal sheet at one or at two points and the opening in the metal sheet is enlarged by shearing of the metal sheet at a point that moves around the circumference.

Abstract: The present invention relates to a screw nail (1) for connecting plane components in dry construction by means of an automatic nailer, in particular for fixing surface elements onto a metallic substructure, the screw nail having a shaft (2) on one end region of which a head (3), and on the other end of which a hole formation region (5) extending to a point (4) or to a shape similar to a point (5) are formed, the shaft (2) being provided with a knurling (6), wherein the shaft (2) has a first knurling section (6a), in particular in a region of the shaft (2) adjacent to the hole formation region (5) in which the knurling (6) extends substantially parallel to a central axis of the shaft (2), and at least one second knurling section (6a) adjacent to the latter, in which an angle of elevation (5) of the knurling (6) formed between the central axis of the shaft (2) and the knurling (6) increasing constantly towards the head (3).

Abstract: A fastener for being inserted a first depth d1 through a first object and a second depth d2 into or through a second object, is provided. The fastener includes, but is not limited to, a head having an outer surface opposed to an inner surface, a shank connected with the inner surface of the head at a first end and forming a tip at a second end opposed to the first end, and an identification marking formed on the outer surface. The outer surface remains exposed upon the fastener being inserted into an object. The shank has an actual length La from the first end to the second end, and wherein the actual length La is equal to or greater than the sum of the first depth d1 and the second depth d2. The identification marking indicates an embedment depth de of the fastener.

Abstract: A fastener for locking two or more sheet sections together comprises a shaft tapered at one end and having a driving head at the other end with a relatively coarse thread running from the tapered end towards the head and a relatively fine thread between the coarse thread and the head. The fine thread has a pitch which is approximately equal to the thickness of the sheet sections and extends from the head for from two to six threads.

Abstract: A fastening device for fastening a tube to a bearing structure, particularly a horizontal mesh frame tube of a mesh cage attached to a transport pallet used to hold a liquid container. To form the fastening device the tube has a fastening section with a zone flattened by compression and provided with a fastening hole to accommodate a fastening bolt connecting the fastening section to the bearing structure. The fastening hole has a perimeter shaped such that the perimeter defines a force application plane between a bolt head and the fastening section that is inclined at an angle ? relative to a fastening plane in which the fastening section is connected to the bearing structure. The perimeter has a hole embrasure formed by an annular collar extending in the direction of a fastening axis, and which defines a bearing surface for the bolt head disposed in the force application plane.

Abstract: A masonry anchor includes a head and a body integral to the head and extending therefrom. At least one helical male thread surrounds the body and includes a leading face substantially perpendicular to the body and a trailing face disposed between the leading face and the head. The trailing face intersects the leading face at a thread crest.

Abstract: A self-drilling screw includes a thread section, a head on the thread section, and a drilling section. The thread section has plural threads. The drilling section includes two opposite cutting edges with an end point for cutting a hole in a workpiece, a discharging section for exhausting bits cut by the drilling section, a guiding section formed above the discharging section to lead the screw to vertically move in the workpiece, and two discharging grooves to lead cut bits to temporarily stay in the discharging section. When the screw is rotated to move in a workpiece, the cutting edges can drill a hole, with cut bits moving into the discharge section and exhausted out through the discharging grooves. After the screw moves into the workpiece for a certain depth, the guiding section can guide the screw to move straight and accurately in the workpiece.

Abstract: The composite joist floor system includes joists supported by supporting members. Corrugated steel decking is positioned over the joists such that the corrugations are substantially perpendicular to the joists. Self-drilling, self-tapping, stand-off screws are spaced along the length of the joist, aligned with the deck corrugations. These stand-off screws provide the required shear transfer between the joist and concrete slab to form a composite floor system. The placed concrete encapsulates the upper non-threaded shank portions of the stand-off screws and the end of the joists. After the concrete has cured, the resultant system comprised of steel joists, steel decking, stand-off screws, and concrete, act together to form a composite system with greater load carrying capacity and less vertical deflection. The stand-off screws connect the joist upper chords to the concrete slab allowing the joist and concrete slab to act as a unit, by transferring shear between the two joined components.

Abstract: Disclosed is a screw nail, which has chip grooves respectively obliquely cut through top and bottom sides of each of the threads thereof at different elevations and defining with each thread two parallel cutting edges, and a plurality of guide ribs protruded from the periphery of the nail shank and respectively connected between each two vertically spaced adjacent chip grooves for guiding out cut chips and enhancing binding between the screw nail and the workpiece.

Abstract: A screw with triple regions of shaft provides an optimal drilling/securing power as well as debris-containing capacity. To encompass the above opposing functions in a screw, the middle region is configured in two alternative ways: (1) Both the number of spiral threads per unit length and the outer diameter of spiral threads in the middle region are reduced to create more capacity for debris; and (2) Replace voluminous spiral threads with an equivalent space-saving securing structure of rhombic threads.

Abstract: A fastener for securing a 0.625 inch (? inch) thick gypsum wallboard panel to a wooden building frame. The fastener includes a body having a predetermined axial length. The body includes a cupped head at one axial end of the body, having a diameter that is at least in excess of 0.297 inches ({fraction (19/64)} inches), a threaded portion at an opposite axial end of the body and an unthreaded shank portion extending between the cupped head and the threaded portion, wherein the shank portion has an axial length that is at least in excess of one-third of the axial length of the fastener body, and a shank portion diameter that is at least in excess of 0.098 inches.

Abstract: A method and apparatus for the reduction and fixation of a fractured bone, comprising the steps of drilling a plurality of bores in different bone sections of a fractured bone site and then driving bone screws having an elongated cylindrical shank with external thread and a throughgoing threaded bore running the length of said shank and a head formed at the proximal end of the shank defining an engagement structure in the form of a geometrically shaped recess which is shaped to receive torque from a driver into respective bores of different sections of a fractured bone with a driver. The driver is constructed as a cannula shaft member and has a first engagement structure formed at a distal end, a handle member mounted at the proximal end of the shaft member with a slidable rod member having a length greater than the length of the shaft member disposed within and removable from the bore of the shaft member; and a cap member secured to said proximal end of the rod member.

Abstract: The fastener of the present invention is made to be shaved flush with a surface. The fastener is made such that some visually or mechanically detectable indicator reveals if too much material has been removed from the head of the fastener during the shaving process. The fastener and its method of use contemplates several means of indicating if too much material has been removed from the head of the fastener. These means include either tightly controlling the height of the fastener head or adding features to the head, land, or countersink of the fastener which indicate if an excessive amount of material has been removed.

Abstract: The screws which are normally employed to attach the end plates to the trough-shaped main body of a passenger-side airbag module reaction canister are replaced by impact-driven darts. The darts are made of material harder than that of the main body and include surface irregularities which deform the material of the main body and improve the frictional engagement.

Abstract: A releasable quick-coupling fastener assembly includes a backing sheet (22) having a number of apertured ovaloid bosses (24, 76-90) each presenting a resilient inboard wall structure (108) and resilient inner connective walls (110 and 112) from which depend inwardly extending lip members (118 and 120). The assembly further includes a threaded member (20) having a head (26) and a helically flighted shank (38) for insertion within a boss aperture (106) through a straight application of force by which the shank thread structure (40-54) deformably engages the lip members (118 and 120). The threaded member (20) and be released from engagement with the boss (e.g., 24) through counterclockwise rotation.

Abstract: An impact drivable fastener, suitable for fastening sheet metal articles, includes a shank extending from a tip (10) at one end, which tip is adapted to be driven through a metal sheet, and a head (10) at the other end. A large pitch multi-start thread formation (11), including ribs separated by flutes, is formed on a part of the shank. The depth of the flutes and the height of the ribs increases uniformly from zero at the starting end of the formation nearer to the tip to maximum values at a position adjacent the head.

Abstract: Disclosed is a stud bolt having nonsymmetrical screw threads projecting from the shank thereof, wherein each screw thread of the stud bolt has an inwardly concave curved flank and an outwardly convex curved flank. With this arrangement, the load required to fit a resin clip over the stud bolt can be lowered below that needed for a conventional stud bolt while maintaining the load required to remove the clip equal to or more than that for the conventional bolt. Thus, this stud bolt allows a resin clip to be easily fitted over the bolt.

Abstract: A method of protecting machine readable signals recorded on magnetic recording media from unauthorized duplication and use. The signals to be protected are recorded on an authorized magnetic recording medium having a relatively high coercivity. An attempt is made by the computer to alter predetermined validating signals on a recording medium presented for use in the computer. The computer is disabled from further using the signals recorded on the recording medium if the validating signals cannot be read back. If the protected signals have been copied onto an unauthorized recording medium having a relatively lower coercivity and such unauthorized recording medium is presented to the computer, the validating signals will be alterable. Thus, an unauthorized copy of the protected signals cannot be used since the system detects that the validating signals have been changed and disables the system.

Abstract: Improved guidance devices, particularly guidance flutes and guidance tips, as used to guide pointed fasteners, particularly drive pins of different lengths and threaded studs, as such fasteners are driven through muzzle bushings of powder-actuated tolls, are disclosed. Such a guidance flute, as extruded from an elastomeric material, has four pairs of non-radial ribs protruding outwardly from a tubular body. Each pair consists of one relatively short rib and one relatively long rib in parallel relation with respect to each other, upon opposite sides of a diametrical plane, when the ribs are unstressed. Such a guidance tip, as molded from an elastomeric material, has a cap portion and a flared skirt, which has plural slots extending toward the cap portion and dividing the skirt portion into plural flanged or flared portions. Such guidance devices, when assembled with such fasteners, can be snugly fitted within a muzzle bushing having a bore diameter within a range of bore diameters.

Abstract: A fastening element to be driven into a hard receiving material, such as metal, includes a head at its trailing end and an axially extending shank projecting from the head to the leading end with a tip at the leading end. At least an axially extending section of the shank from adjacent the trailing end is threaded. A guide member is in threaded engagement with the shank and is spaced from the head when the fastening element is ready to be driven. The guide member is cup-like shaped with an opening facing toward the leading end. The guide member has a base extending transversely of the axial direction with a conically shaped section projecting radially outwardly from the base and axially toward the leading end. When the fastening element is driven into a receiving material, the guide member moves into contact with the head and is deformed when the driving of the fastening element is braked.

Abstract: A fastening system for securing an article to a base uses a conventional drive fastener. A reaction surface on the article contacts the bearing surface on the underside of the fastener head causing the fastener head to tilt relative to the body of the fastener. The reaction surface also causes the body of the drive fastener to deform when it is fully driven into the article, and a portion of the material from the reaction surface is displaced into the aperture to increase the retention force of the fastener.

Abstract: A wall anchor having a socket and a drive pin. A passage within the socket receives the drive pin. Fingers on the leading end of the socket have walls in the path of the pin. The fingers pivot into contact with the back surface of the wall by a cam action of the drive pin against the fingers and slightly spaced from a web in front of the fingers. Ribs on the inner wall of the passage grip the drive pin in a ready position. A head on the socket and barbs on the outer wall hold the socket in another part. The fingers have generally flat faces that are barbed to make maximum contact with the wall surface. The drive pin has a shank at its lead portion and helical threads at its trailing portion with a head on the trailing end. The drive pin can be driven by a hammer through the socket and can be withdrawn by the use of a screwdriver.

Abstract: Disclosed is a wood screw with a head separated from a threaded extremity by an unthreaded shank whose diameter is less than the outer diameter and only slightly larger than the root diameter of the thread. A cylindrical or tapering neck inserted between the head and the shank has a diameter, at least in the immediate vicinity of the head, equaling the outer thread diameter. The threaded extremity terminates in a pyramidal tip with three or four sides, at least one edge of the pyramid being notched by an extension of the thread groove to act as a spur in cutting a bore ahead of the advancing screw thread. The turns of the thread, in one embodiment, have leading flanks merging into or overhung by rounded ridges enabling the screw to be hammered into a substrate of natural wood or particle-board composition.

Abstract: A drive fastener designed to be hammered into penetrable material. One end of the drive fastener is split. The opposite end of the drive fastener contains threads. A pair of nuts are threaded together on the threaded end of the drive fastener to receive the impact of a hammering device for driving the fastener into penetrable material. When being driven, the split end spreads while penetrating to secure the fastener in place. The nuts are then removed and a single nut may be used to secure an object to the set fastener.