Abstract: A hybrid drop-in anchor with an expansion sleeve, a split base region of an anchor body and a setting plug. The sleeve surrounds an annular body recess of the body, with a clip portion extending around an annular recess. Clip segments extend from the arcuate portion, each having a proximal portion with an original thickness and a distal portion having at least one projection, extending therefrom. The projection extends from the outer surface without corresponding cavity on an inner surface, with a projection of total thickness greater than the original thickness. After the setting plug is driven, and the threaded male member is inserted and tightened, pulling movement of the anchor moves the expansion sleeve baseward, such that each segment rides outwardly on the tapered portion, providing radial expansion of the anchor and locking, wedging engagement of each segment projection with wall surfaces with enhanced pull-out resistance.

Abstract: A joint and method for connecting elongated members end to end in which outer sleeves are anchored in blind holes extending in from each end face and a threaded rod is advanced into threaded nut receptacles affixed to the inside end of each sleeve to draw the end faces into abutment.

Abstract: A connector and method for joining one end of a first wood member such as a wood log or beam to a side of a second wood member involving metal sleeves secured in aligned holes in a respective member with a protruding one of the sleeve slidable into the other sleeve. A bolt is threaded into an internally threaded element on the inner end of the sleeve in the first member and advanced to pull the members together. The sleeves are secured in the holes with spike features driven out into the surrounding wood. Alternatively, a tee connector has a plate portion fitting into a slot extending through aligned holes in the plate and one end of the first member. A cross plate is held against the one side of the other member with thread fasteners.

Abstract: A bolt fixing assembly comprises a bolt body, a resilient sleeve, and a pressing member. The bolt body includes a head and a shank. The resilient sleeve includes plural toothed plates integrally formed on an outer periphery thereof. Each resilient toothed plate is initially located in an interior space of the resilient sleeve and movable along a radially outward direction to a position beyond the outer periphery of the resilient sleeve. The pressing member includes a central hole for receiving the shank of the bolt body. The central hole has an inner periphery configured corresponding to an outer periphery of the shank. The pressing member includes plural ribs for respectively, selectively urging the resilient toothed plates of the resilient sleeve to the position beyond the outer periphery of the resilient sleeve.

Abstract: An expansion anchor to be set in a bore of a constructional component and including an anchor member (1) having, at its end facing in a setting direction, an expansion region (5), a guide region (6) remote from the setting direction end of the anchor member (1), and a transition region (8) located between the expansion (5) and guide (6) regions and having at least one opening (10) and at least one salient tab (12) provided in a region of the opening; and a cone (3) for expanding the expansion region (5) of the anchor member (1).

Abstract: A fastener for connecting a first panel to a second panel comprises a head and a shaft, the shaft including a plurality of spring legs, each connected at one end to the head and flexing inward and outward relative to the one end. The shaft is dimensioned for insertion into an aperture of the second panel with interference against aperture-defining edges. A plurality of grooves are formed within each spring leg, each groove separated from an adjacent groove by a rib. The rib is configured having a ramped leading surface, a stepped trailing surface and a peak surface disposed between the leading and trailing surfaces. The grooves of one spring leg are axially misaligned with the corresponding grooves of an adjacent spring leg such that each spring leg alternately locks its grooves to the aperture-defining edges of the second panel as the shaft is inserted into the aperture. The head of the fastener can be modified to connect with the first panel in multitude of alternative configurations.

Abstract: An expansible anchor for anchoring in a hole drilled in a component has a shank having a rear end provided with a structure for fixing an article and a front end provided with at least two portions of reduced cross-section with adjoining expander cones, expansible sleeve with a structure including an expansible sleeve positioned over each of the portions of reduced cross-section, at least two convex beads mounted on the expansible sleeve with a structure and projecting radially outwards, each of the beads being provided with at least one opening, and the two portions of reduced cross-section having different diameters.

Abstract: The expansible anchor consists of a shank having a threaded portion for fixing an article at its rear end and a reduced cross-sectioned portion with an adjoining expander cone at its front end, and, positioned over the reduced cross-sectioned portion, an expansible sleeve having longitudinal slits forming expansible segments and locking elements protruding beyond the diameter of the expansible sleeve and arranged on the expansible segments. To increase the holding force of the anchor and to allow the expander cone to slide-up and the expansible sleeve to expand in operation if the drilled hole become enlarged as a result of cracks forming, the locking elements consist of several interconnected punched elements on each expansible segment extending in a longitudinal direction of the expansible segments. Each punched element is triangular with a point directed towards the front end of the expansible segments.

Abstract: An expansible anchor for anchoring of an article to a component includes a shank having a portion of reduced cross-section at a front end, elements for fixing the article at a rear end, an adjoining expander cone at a rear end of the shank, and an expansible sleeve positioned over the shank portion of reduced cross-section and locking elements projecting beyond the diameter of the expansible sleeve. To allow the expander cone to enter the expansible sleeve for expansion of it even in the event the drilled hole becomes enlarged as a result of cracks being formed in its wall, the expansible sleeve is provided with a plurality of longitudinal slits so as to form expander arms. Each of the longitudinal slits extends over at least half the length of the expansible sleeve from a front end edge of the expansible sleeve and continues into an enlarged opening provided in the sleeve.

Abstract: A fastener clip for positioning in a preformed aperture in a workpiece to receive a threaded fastener comprises a planar head having opposed faces with a threaded opening extending between the faces and a pair of resilient legs joined to opposite ends of the faces. The legs each have a body extending away from the head angularly and terminating in a free end located to engage the shank of the threaded fastener extended through the opening. A pair of resilient tab members are integral with each leg and extend outward of the respective leg in a direction away from the free end to a terminal end bent inwardly of the respective leg toward the head. At least a portion of each tab member extends to a point outwardly of the maximum radial extent of the associated leg at a location adjacent the head with the terminal end having a radial position closer to the opening than the first end of the legs.

Abstract: A cone expansion wall plug is provided comprising a threaded rod, an expansible socket, an expansion cone, an intermediate ring and a spacer between the head of the rod and said intermediate ring. During expansion and anchorage of the socket by the cone, the ring and the spacer prevent movement of the socket with respect to the rod. After anchorage, the rod may be screwed into the cone by shearing a collar of the spacer. During expansion, the socket only bears against the intermediate ring through a radial shoulder.

Abstract: An anchor having a shank, a reduced neck portion on the inner end and a tapering portion, and engagement means on the outer end and having a one-piece wedging collar arranged around the reduced neck portion, and having an overlapping portion extending partially up the tapered portion, and such collar having a leading and a trailing end and an axial slot extending part way therethrough from the leading end, near the tapered portion and terminating at a bridge portion, near the trailing end and at least two generally dome-shaped bosses formed in said collar, extending outwardly, and defining a maximum spacing there between greater than the diameter of the shaft shank of such anchor, the bosses being located between the leading end, and the bridge portion, on either side of the axial slot.

Abstract: A screw anchoring plug or bushing for use in predrilled mounting holes in elements of semihard materials such as chipboard, consisting of a sleeve made as a rolled up piece of metal sheet material provided with a number of slightly projecting barb-like tongue portions and cured to be resilient, whereby the tongue portions project as leaf springs. The sleeve is threaded for direct engagement with a standard screw, and when it is inserted in the mounting hole and the ends of the tongue portions are hereby caused to resiliently engage the wall of the hole, the sleeve will thereafter be moved axially outwardly when the screw is tightened, and the tongues will cut themselves into the hole wall and get spread to resist further retraction of the sleeve.

Abstract: An expansion dowel assembly consists of an axially extending sleeve and a spreading element. Tongues are pivotally displaceably connected to the sleeve and are located one after the other along the axial direction of the sleeve. The tongues are split in the axial directions and can be pivoted inwardly and outwardly relative to the sleeve. Lugs are formed on the radially inner surface of the tongues and project axially beyond one end of the tongues. The lugs afford axial support for the tongues pivoted outwardly relative to the outside surface of the sleeve. The spreading element holds the tongues in the outwardly pivoted condition so that the tongues provide a mechanical lock for the sleeve within a hollow space within a structural member.

Abstract: An anchor which is internally threaded for securing a bolt within a ledged hole in a hard material. The upper portion of the anchor has longitudinal slits dividing the top of the anchor into circumferentially spaced segments having a shape such that the segments can be bent outwardly. The outermost portion of a segment has a tip for engaging a portion of the ledge to prevent anchor rotation. A tubular body placed immediately above the outwardly bent segments provides lateral support for a bolt secured by the anchor and applies pressure against the segments, helping keep the anchor in place.

Abstract: A one-piece sheet metal insert for use in anchorage and fastening applications. The insert is designed to provide sufficient resistance to axial pull-out loading when utilized in relatively soft material workpieces such as structural foam plastic. The insert is also configured to take the clamp load between its collar and internal thread ribs thereby preventing tensile and compressive forces from being applied to the workpiece material surrounding the insert which commonly cause creep to occur.

Abstract: An expansion sleeve for attaching objects to a relatively thin panel comprises a hollow headed bolt threaded externally for its full length and threaded internally at an end portion remote from the head. The unthreaded internal portion of the bolt has an inwardly projecting apertured annular shoulder into which a drift pin may be driven to expand the sleeve on the interior side of a panel to which the sleeve is to be attached. A jamb nut pulls the expanded sleeve portion firmly against the inside of the panel member and thereafter a threaded rod is threaded into the interior threads of the sleeve so that a nut on the threaded rod may be tightened against the sleeve head. This draws the inner end of the sleeve toward the panel member to increase the pressure of the expanded sleeve portion against the panel. An object to be attached to the panel is then connected to the protruding end of the threaded rod.

Abstract: A fastener for anchoring a sheet-metal roofing panel to the top horizontal web of a roof-supporting sheet-metal beam, comprises a headed shank having an enlarged tip end constructed to penetrate said roofing panel and the underlying web of the panel's supporting beam, by being either percussively driven or rotatingly bored therethrough. In one species, an elastic plastic sleeve, which embraces the shank, has (1) a series of molded rings forming stepped seats engageable under the penetrated beam web and (2) a dome-shaped capping flange resiliently engageable down against the upper surface of the roofing panel. In a second species, a metallic sleeve, split for expanded slip-over engagement with the shank of the fastener, has vertical rows of struck-out anchoring fingers; and a resilient dome-shaped member is resiliently squeezed between the head of the fastener and the upper surface of the roofing panel. Said member may include a bowed spring-steel cross-shaped element.

Abstract: An expansion fastener, especially for walls formed of plaster or drywall, in which a metallic sleeve-like member having spreadable sides is provided with a point at one end and an outwardly extending flange at the other. The fastener can be driven into the wall until the flange engages the outer surface of the wall. The pointed end portion of the fastener is circular in cross-section and truncated. Teeth are spaced longitudinally and extend outwardly but within an imaginary cylinder extended from the pointed end portion. A screw threaded into the member spreads the sides thereof and the teeth outwardly forcing them into the side of a hole formed in the wall when the fastener is driven thereinto.

Abstract: A device for fixing members to panels, or joining panels, which has a body moulded from a resilient plastic, comprising a head part and a tail part joined by strip-like connectors which distort when the tail part is pulled towards the head part, and including outwardly deflected wings displaceable inwards to allow the fixing device to be applied.