Abstract: The present disclosure provides for a system to secure an anchor within a bore hole comprising a drill bit tool to be connected and secured to an improved setting tool head. The system is also comprised of an anchor removably secured to the setting tool head to optimize the setting strength of the anchor. The system is also comprised of bullets having preferred size ranges to further optimize the setting of various anchors.

Abstract: An anchor for laminated glass includes an expansion dowel that has expansion appendices situated circumferentially, and is preferably made of a flexible material and having a conical cross-section with thickness increasing in the direction of insertion. Above the line of the expansion appendices is a circumferential groove, situated at the height of the edge of transition of the cylindrical hole into the conical hole, forming an empty space.

Abstract: The self-undercut anchor with carbide tip is designed to create a drill hole and enlarging the lowermost end of said drill hole by means of a carbide tip or cutting portion. The carbide tip or cutting portion is positioned in such a way so as to not obstruct the setting of the anchor by means of the spreading lamellae. Once said lamellae have been positioned properly and forced downward, the self-undercut anchor is set in place.

Abstract: A self-drilling anchor is provided which includes an elongated tapered plastic body and anchor assembly. The body has an external helical threaded portion, a central clear bore for receiving the anchoring assembly, two diametrically opposed break-away slotted portions, and an axial driving flange concentrically positioned relative to the tapered body first end. The flange has inner and outer walls, a central clear aperture for receiving a screw driver, and at least two diametrically opposed notches for receiving a bladed driver for drilling the tapered body into a hollow wall. The anchoring assembly is centrally received in the clear bore, and includes an externally threaded screw, a collar, and at least two diametrically opposed separable arms. The collar is internally threaded for receiving the screw. The separable arms have spring loaded ends and pointed ends. The spring loaded ends are pivotally attached to the collar.

Abstract: A wall anchor device includes an outer anchor sleeve having an outer peripheral lip, one or more peripheral flanges extended outwardly from the middle portion for engaging with a work piece, an insert engageable into the outer anchor sleeve and having an outer end for being driven by a tool, and a penetrating element attached to the insert to drill and move the anchor sleeve into the wall, the outer anchor sleeve may be expanded and engaged with the work piece, and the penetrating element includes one or more projections for centering the penetrating element relative to the work piece and for preventing the penetrating element from being tilted relative to the work piece.

Abstract: A wall anchor device includes an outer anchor sleeve having an outer peripheral lip, one or more peripheral flanges extended outwardly from the middle portion for engaging with a wall member, an insert engageable into the outer anchor sleeve, and a penetrating element attached to the insert to drill the anchor sleeve into the wall and to form an aperture in the wall, the outer anchor sleeve may be expanded and engaged with the wall member, and the penetrating element includes a helical protrusion for engaging with the wall member and for evacuating a drilled or material into the aperture of the wall member and for solidly securing the wall anchor device to the wall member.

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 toggle bolt fastener assembly comprises a tubular toggle housing body within which a coaxially disposed nut member is guidably moved in a translational manner. The nut member includes lug structure for preventing relative rotation or pivotal movement of the nut member with respect to the toggle housing body, and a pair of toggle wing members are pivotally mounted upon the nut member between radially contracted and radially expanded positions. A pair of compression sleeve members are also provided upon the toggle housing body for forcing the toggle wing members to their radially contracted positions, or for permitting the toggle wing members to move to their radially expanded positions depending upon the disposition of the nut member within the toggle housing body.

Abstract: A drilling apparatus for single pass bolting, the drilling apparatus comprising a drill steel assembly and a disposable drill bit, wherein the drill steel assembly comprises at least a drill steel having first and second ends, the first end of the drill steel being adapted to releasably operatively engage a drive for imparting rotational and impact energy and the second end of the drill steel is releasably operatively interconnected with the disposable drill bit, the drill steel being adapted to transmit rotational and impact energy to the disposable drill bit, and wherein the drilling apparatus is characterized in that a portion of the drill steel proximate the second end thereof is adapted to be received within a standard friction bolt, the drill steel assembly is provided with a flange adapted to drive the friction bolt into a body requiring reinforcement, and the drill steel assembly is adapted to allow facile disconnection of the disposable drill bit therefrom, whilst the drilling apparatus is embedded i

Abstract: A self-cutting, undercutting dowel (1) is formed of an axially extending anchor rod (2) with a head part (3) leading in a setting direction (S) of the dowel and an axially extending sleeve (5) laterally enclosing the anchor rod (2). At its end facing in the setting direction, the sleeve (5) has expansion sections (7) separated from one another by axially extending slots (6). The sleeve (5) can be driven over the head part (3) relative to the anchor rod (2) so that the expansion sections (7) flare radially outwardly. At least one of the expansion sections (7) has a tooth shape at its end facing in the setting direction forming a cutting edge (10) for cutting an undercut in a receiving material for the dowel. The cutting action is effected by rotating the sleeve (5). The cutting edge (10) is located at a side edge (11) of the expansion section (7) leading in the rotating direction (R) of the sleeve (5) and the cutting edge is inclined to an axis (A) of the sleeve at a first angle (.alpha.).

Abstract: An attachment member (31) includes a tubular metallic shank (2) with an axial through-bore (3) and a slot (8) formed in the jacket of the shank (2) and extending along the entire length of the shank (2), and load application means (14) at the trailing, in the setting direction, end portion (13) of the shank (2). At an opposite, leading end (6) of the shank (2), cutters (7) are provided. The outer diameter of the shank (2) diminishes from the trailing end (4) toward the cutter carrying leading end (6). The shank (2) is anchored in a constructional component by reduction of its outer diameter over a substantial portion of its longitudinal extent.

Abstract: A self-centering wall anchor 10, 100 having an outwardly threaded hollow cylindrical body 101, 111 with a flanged proximal end and a cutting distal end. The hollow cylindrical body diminishes in diameter toward the distal cutting end 20, 110 in the form of a pointed dome with a pointed centering tip 22, 103 at the center axis of the anchor. An inner bore 14, 105 extends continuously from its opening at the proximal end of the anchor along the center axis of the cylindrical body to the centering tip at the distal end where it is partially closed because of the disposition of the centering tip at the center axis. The distal end of the bore is in the form of a deep flute 21, 105a which communicates and is part of the inner bore and is defined at its outer edges by a leading cutting edge 23, 107 and a trailing edge 24, 108 of the single cutter, with the leading cutting edge extending from the pointed tip in a curved distention.

Abstract: A spreading anchor (1) including an anchor rod (2) provided at its front end, when viewed in a setting direction, with a head (3, 30) having at least several regions, which taper outwardly in the setting direction, and extending through an axial through-bore of an expansion sleeve(5) axially displaceable along the anchor rod (2, 20) and having a plurality of axial longitudinal slots (7) extending from a front end of the expansion sleeve (2, 20) and forming at least two, located opposite each other expansion tabs (6) provided at their free front ends with cutters (16), the spreading anchor (1) being supported against an upper surface of a ground (G) and further including rotation-transmitting driver elements for transmitting axial rotation, which is generated during setting of the anchor rod (2, 20), to the expansion sleeve (5).

Abstract: A spreading anchor including an anchor rod having a stem (2) provided at its front end with a cone (3) which widens toward its free end, and a sleeve (5) which surrounds the stem (2), is axially displaceable along the anchor rod, and has a plurality of cutting tabs (6) separated from each other by axially extending slots (70, extending from a hinge point (9) in a direction of the cone (3), and having cutters (10), in regions of their free front ends, with the cutting tabs expanding radially upon the sleeve (5) being pushed onto the cone (3), with the sleeve (5) having at its free end in a region of the cutting tabs (6), and axially extending folded-over section (8) having an axial length (1) corresponding approximately to the length of the axial slots, and with the hinge (9) being located in the transition region between the folded-over section (8) and the sleeve outer surface.

Abstract: A self centering and drilling wall anchor having an outwardly threaded cylindrical body with a flanged proximal end and a cutting distal end. The distal end has a pointed tip at the long axis of said anchor and is formed with a flute extending from the pointed tip to and communicating with a through bore in the cylindrical body. The flute is defined at its outer edges by a leading cutting edge and a trailing edge, with the leading cutting edge extending radially and proximally from the pointed tip in a plane in common with the axis of the anchor and diverging from the trailing edge to provide access to the flute and the through bore for receiving material cut from the wall by the leading cutting edge.

Abstract: A self-tapping sleeve for providing a ceiling junction for a suspended lighting fixture has a cylindrical body, a center passageway for containing the junction, a thread structure on the perimeter surface of the cylindrical body, and two perimeter cutting elements at the top end of the cylindrical body for producing a circular cutting action in front of the sleeve when the sleeve is rotated in and advance rotation. A trim ring is additionally provided at the bottom end of the body to trim out the ceiling junction when the sleeve is installed. A key-shaped portion of the center passageway receives the key-shaped end of a drive tool used to install the sleeve.

Abstract: An anchor, for inserting into a wall structure, having a cylindrical body, a flanged end, a cutting end and a through bore adapted to receive a support fastener. The outer surface of the body is threaded. The cutting end comprising a single cutter extending distally from the periphery of the through bore at the cutting end. Access of the cut material to the through bore as the cutting end of the anchor is inserted into the wall and rotated as provided by the entry end of the anchor, the periphery of which, extends in a spiral path.

Abstract: An anchor for insertion in wall board and having a cylindrical body with an outer thread and an axial passage and a flanged proximal end and a saw-tipped distal end. The flange at the proximal end may be formed as a hook and the saw-tipped end is provided with access areas about the rim of the distal end adjacent the leading and trailing edges of the saw tooth or teeth.

Abstract: A self-drilling anchor installable in a wall by means of a screwdriver, the anchor being adapted to receive a fastener serving to hold a fixture adjacent the wall. The anchor includes an externally-threaded shank section having a head engageable by the screwdriver and a longitudinal bore to receive the fastener. Integral with the shank section and extending axially therefrom is a core drill section whose bit includes at least one cutting blade and whose outer cylindrical surface acts as guide means whereby as the anchor is turned in to the wall by a screwdriver, the cutting blade then bores a round hole therein whose bank is engaged by the cylindrical surface to ensure circularity of the drilled hole. And as the anchor continues to turn, the shank section enters and taps the drilled hole until its head engages the outer surface of the wall to complete the anchor installation.

Abstract: A concrete anchor has an anchor body 21, which is a rod-shaped member 22 having a male thread 23 and a striking head 24, both formed at one end of the member. This rod-shaped member 22 further has at its another end a cylindrical portion 25 so that slots 26 extend axially from an open end of the portion so as to provide expandible feet 27. Saw-toothed scratching tips 28 are formed to be acute ends of the expandible feet. A tapered plug 31 which is inserted in the cylindrical portion 25 has an annular recess 34 and a retaining shoulder 36, both formed between a large diameter portion and a root 35 of the tapered plug, with the annular recess providing a cavity to receive concrete scrapings, so that an impact applied to the striking head can provide a strong and effective retention force for the concrete anchor, and any cracks which may be produced around a hole holding the fixed anchor does not impair the retention force.

Abstract: A wall anchor for insertion in wall board and having a cylindrical body with an outer thread and an axial through passage extending from a flanged proximal end to a saw-tipped distal end. The cylindrical body comprises a proximal extension and a distal extension of approximately the same length equal to the width of wall board. The flange at the proximal end may be provided with locking tabs and the saw-tipped end may be provided with mashing teeth on a circumference of revolution smaller than that of the sawing teeth.

Abstract: Sleeve anchor comprising a tapered stem increasing in section to form a head at one end, at least the end portion of the stem remote from the head being threaded, a tubular sleeve placed over said stem being retained between the head and a threaded retaining member screwed onto the threaded end of the stem and in which the retaining member may also serve to hold a component to be attached to the anchor. Ratchet teeth are provided on the inner face of the retaining member and on the end of the tubular sleeve adjacent to the retaining member whereby in operation the two sets of teeth are engaged so that the sleeve is positively rotated with the retaining member and the outer wall of the tubular sleeve is further provided with radially-directed cutting teeth which engage the walls of the bore hole into which the anchor is inserted as the tubular sleeve is simultaneously rotated and expanded by the action of the tapered stem.

Abstract: A self-drilling anchor installable in a wall by means of a screwdriver, the anchor being adapted to receive a threaded fastener serving to hold a fixture against the wall. The anchor includes an externally-threaded shank section having a head engageable by the screwdriver and a longitudinal bore threadably to receive the fastener. Integral with the shank section and extending axially therefrom is a drill section having at least one cutting member and guide means therefor, whereby as the anchor is turned in to the wall by a screwdriver, the cutting member then bores a round hole therein whose bank is engaged by the guide means to ensure circularity of the hole. And as the anchor continues to turn, the shank section enters and taps the hole until its head engages the outer surface of the wall to complete the anchor installation.

Abstract: A spreading anchor comprising an anchor rod (1) including a spreading cone (5) on its front end (4) in the direction of insertion of said anchor (1), the spreading cone (5) flaring in the insertion direction and adapted to cooperate with a spreading sleeve (9) which is provided with several longitudinal slots (10), said slots (10) originating from the front rim (11) of said spreading sleeve (9) and forming spreading lamellae (18), at least two of said spreading lamellae (18) being opposed, the end faces (21) of said opposed lamellae (18) in the insertion direction being provided with cutting inserts.

Abstract: A set screw having a cutting element provided on the outer end thereof for a "biting" engagement with the outer periphery of a pipe, or the like, the cutting element comprising a cutting edge adapted for a penetration of the pipe in a manner requiring minimum torque on the screw during the installation thereof.

Abstract: A self-drilling dowel is formed by a tubular member defining an axially extending bore. The tubular member has a leading end and a trailing end with a cutting head at the leading end. A spreader member is insertable into the bore for expanding the tubular member. A member, preferably a plate, is positioned within and extends transversely across the bore adjacent the leading end forming a closure. The bore closure member is spaced axially from the leading end and it is separate from the tubular member and is displaceably fitted within the bore.