Abstract: A nut assembly is proposed in which deformation will not occur at the end of a threaded hole formed in the nut and it is not necessary to give special consideration to the formation of female threads. A nut is pivotally and slidably mounted between opposed arms of a frame. A threaded hole is formed in the nut so as to extend therethrough, a ridge is integrally provided on the back side, and a hole is provided coaxially with the threaded hole. The hole has an inner diameter substantially equal to or greater than the root diameter of the female threads of the threaded hole.

Abstract: A plate nut assembly is provided in which a projection provided on the nut has a centering guide function relative to a circular hole so that the projection reliably fits in the circular hole to prevent displacing of the nut assembly, even if an external force is applied in a direction perpendicular to the axis of a bolt. Around an entrance of the threaded hole one side of the nut, within such a range as to be within the diameter of a hole formed beforehand in a wall or the like at its portion where the nut is inserted, a protrusion is formed on one side of the nut around the threaded hole, so that the height decreases as it is farther from around the threaded hole, and a recess having substantially the same outer diameter as the protrusion is formed around the threaded hole on the other side of the nut, the recess having opposed end walls inclined such that the distance between the opposed end walls decreases as they go deeper.

Abstract: The present invention is a wall anchor having a novel finger configuration. This wall anchor has a head and barrel portion with a bore extending therethrough and laterally expandable fingers in general alignment with the bore. Instead of a straight channel, a channel having curved portions separates the fingers. The curved portions of the channel define ramp surfaces that at least partially extend into the path of a securing member created by the bore. Thus, when a securing member, such as a bolt, pin, screw, nail or similar object is inserted into the bore to secure the wall anchor to the wall, the securing member contacts the two ramp surfaces, separating the fingers. As the fingers separate, a portion of the fingers near the ramp surfaces deform such that the ramp surfaces rest on an outer portion of the securing member, thus providing a securing force for connecting the wall anchor to the wall and relieving stress on the area at which the fingers are connected to the barrel.

Abstract: A self drilling toggle anchor including an anchor member having a head portion at a proximal end, a locking portion at a distal end and a central portion for securely anchoring hardware to a wall, where the central portion defines and borders a channel between the head portion and locking portion. The toggle anchor also includes a drilling member positioned at a distal end of the toggle anchor for drilling through the wall and a toggle member. The toggle member includes a body disposed within the channel of the anchor member, a fitting portion disposed between the body and the drilling member, and upper and lower pairs of shoulders supporting the body within the channel. The body is slidably mounted to the anchor member within the channel and the fitting portion is adapted to releasably engage the locking portion allowing the toggle member to be movable from a releasably locked and fixed first position parallel with a longitudinal axis of the channel to a second position orthogonal to the channel.

Abstract: The present invention generally provides an anchor for providing an attachment point on a surface. In one embodiment, the anchor includes a center shaft having a first member and a second member pivotally coupled thereto. The center shaft has an attachment end and a piercing end. The piecing end is driven through the surface allowing the first and second members to pass therethrough. Once through the surface, the first and second members rotate away from the center shaft to an open position, thus preventing the anchor from disengaging the roof. A collar may be slidably disposed on the center shaft. The collar may be slid against the surface to lock the members in the open position.

Abstract: A nut assembly is proposed for fastening an instrument or the like to a member, the back of which is not accessible. A nut assembly comprising a pivotable nut having a through threaded hole and a pin on each side thereof, and a frame having a flange portion formed with a bolt hole and an opposed pair of arms extending from both sides of the flange portion, the arms each being formed with an elongated hole, the nut being formed at one end thereof with an inclined guide surface for pivoting the nut when pushed by a bolt, the nut being pivotably and slidably mounted between the arms with the pins received in the elongated holes formed in the arms, characterized in that the arms having tip portions bent inwardly at an angle. With this arrangement, it is possible to prevent the nut from coming off the arms.

Abstract: A nut assembly is provided which has a pivotable nut having both sides thereof increased in wall thickness to impart strength and thereby to prevent breakage of the nut upon tightening of a bolt. The nut assembly includes a nut having pivot pins about which the nut is pivotable, and a frame having a flange formed with a bolt hole and a pair of arms provided on both sides of the flange. A pair of hanging walls extending in the bolt inserting direction are provided around the bolt hole at two opposing positions on an imaginary plane perpendicular to a line connecting the pins. This makes it possible to narrow the width of the guide hole of the nut in which the hanging walls are received by an amount by which the banging walls have narrowed. By this arrangement, the wall thickness of both sides of the nut is increased.

Abstract: A rivet tie for coupling together two or more objects. In one embodiment, the tie includes a cable tie shank and a pawl nut which are integrally connected together by a break-away attachment member of reduced strength. The cable tie shank includes a tail having a first end, a second end, a top surface, a plurality of ratchet teeth formed on the top surface and an enlarged button end integrally formed onto the second end. The pawl nut can be separated from the cable tie shank and includes a top surface, a bottom surface, an elongated central opening and a flexible pawl disposed to project into the elongated central opening. In use, two or more objects are disposed on the tail of the cable tie shank. The pawl nut is then slidably mounted onto the tail so as to effectively sandwich the objects between the enlarged button end and the pawl nut, the pawl sequentially engaging the plurality of ratchet teeth on the strap to secure the coupling of the objects together.

Abstract: A hole plug and method of installing the hole plug to seal and repair a hole in a wall of a pipeline, tank or other physical structure is provided. The hole plug has a bolt with a bolt head and a threaded shank, where two or more adjacent notched washers, one or more sealing washers and an exterior washer are secured about the threaded shank and between the bolt head and a threaded nut. The present invention includes an internal sealing washer and/or an external sealing washer. The sealing washers and the exterior washer are selected to provide a surface area larger than the hole. The hole is prepared by establishing a solid, clean edge. The bolt head, a length of the threaded shank, the notched washers and an optional internal sealing washer, are passed from the exterior side of the wall and through the hole. Insertion of the notched washers is accomplished by tipping the washers at an angle to the wall and rotating the washer through the hole.

Abstract: A board anchor comprising a screw shaft, freely rotating anchor section attached to the screw shaft via a spring and stop attachment for re-positioning the anchor section in a crosswise position against the screw shaft from a position parallel with the screw shaft, a stopper mechanism that stops the above screw shaft in the above cross position, and an attachment ring that screws onto the screw shaft, with the anchor section having a screw hole which fits the screw in the above upright position.

Abstract: A self drilling toggle anchor including an anchor member having a head portion at a proximal end, a locking portion at a distal end and a central portion for securely anchoring hardware to a wall, where the central portion defines and borders a channel between the head portion and locking portion. The toggle anchor also includes a drilling member positioned at a distal end of the toggle anchor for drilling through the wall and a toggle member. The toggle member includes a body disposed within the channel of the anchor member, a fitting portion disposed between the body and the drilling member, and upper and lower pairs of shoulders supporting the body within the channel. The body is slidably mounted to the anchor member within the channel and the fitting portion is adapted to releasably engage the locking portion allowing the toggle member to be movable from a releasably locked and fixed first position parallel with a longitudinal axis of the channel to a second position orthogonal to the channel.

Abstract: A simplified, high-strength fastening device for securing fixtures, other objects, structural components, or members for use in “blind hole,” inaccessible applications, particularly overhead or ceiling installations or wall portions having at least one concealed side. The fastening device can be installed easily, can be removed easily and used repeatedly, and can present a maximum bearing surface for engagement with the securing member for distributing an attached load evenly and uniformly upon said member. The fastening device has two parts: (1) a specially shaped nut comprising the actual fastener, and (2) a plate attached hingedly to the nut that provides the means for inserting the nut through a blind hole and for urging it into operational position. The nut has a threaded bore located approximately at its center to receive a fastening commercially produced bolt of appropriate size and kind.

Abstract: A pin (11) is formed projecting upwardly integrally with a face side holder (10) and a slit (13) is formed at a side thereof. On a rear side of the face side holder (10), a stationary pinching portion (20) is provided substantially in parallel therewith and a movable pinching portion (23) and is provided substantially in parallel therewith through a hinge portion (22). Each pinching portion (20, 23) is arranged to have free ends (20a) and (23a) at each tip side and is possible to change from a state where they are mutually horizontal interposing the hinge portion (22) therebetween to a state where they open outwardly so as to separate the tip thereof. The movable pinching portion (23) is integrated with a pin fitting portion (27) which extends to an opposite direction to the pin (11). The pin fitting portion (27) fits into a slit (13) by bending at the hinge portion (22) and is engaged to be one body with the pin (11) by means of an engaging portion (28).

Abstract: A nut assembly is provided which has a pivotable nut having both sides thereof increased in wall thickness to impart strength and thereby to prevent breakage of the nut upon tightening of a bolt. The nut assembly includes a pivotable nut and a frame having a flange formed with a bolt hole and a pair of arms provided on both sides of the flange. A pair of hanging walls extending in the bolt inserting direction are provided around a bolt hole at two portions opposing on an imaginary plane perpendicular to a line connecting the pins. This makes it possible to narrow the width of the guide hole of the nut in which the hanging walls are received by an amount by which the hanging walls have narrowed. By this arrangement, the wall thickness of both sides of the nut is increased.

Abstract: A wall anchor assembly has a pair of posts extending from a collar. The collar has an opening for passing a part of a bolt. Distal from the collar, the posts are connected by a connector. An anchor member is captive between the posts and between the collar and the connector. The assembly has a penetrating configuration in which the anchor axis is substantially parallel to the assembly axis, and the anchor body portion and posts form a body portion. A tongue protrudes from an inside surface of a post and engages a groove on the anchor member in the penetrating configuration with the longitudinal anchor axis substantially parallel to the assembly axis, and transmits axial rotation from the collar to the anchor member. The bolt engages a hole in the anchor to draw the anchor member against the wall to clamp the anchor assembly to the wall.

Abstract: A tie includes an elongated strap with an end plate pivotally connected at each end of the strap, permitting the end plate to be pivoted from a position generally orthogonal to the strap, to a position generally parallel to the strap. Once an end plate is pivoted to a position parallel to the strap, the end plate can be pushed through a polystyrene form panel to project therefrom. The end plate is then pivoted to the position orthogonal to the strap, and pulled into engagement with the outward face of the form panel. The second end plate on the tie is pivoted, pushed through a second form panel, pivoted to the orthogonal position, and thence the second form panel is pulled outwardly into contact with the second end plate. In this way, the tie will interconnect a pair of parallel form panels in spaced apart position, to receive poured concrete therebetween.

Abstract: An anchor makes it possible to easily fasten an object to a brittle wall. The anchor has a plate member formed with a hole for receiving a screw, a pair of legs extending from the bottom of the plate member at both sides of the screw hole, and a slide grip member slidably mounted on the legs. With a wall sandwiched between the plate member and the slide grip member, both members are prevented from turning. Thus, it is possible to fasten an object to the wall simply by threading a screw into the hole of the plate member.

Abstract: A toggle bolt assembly for use with an opening in an associated wall, the toggle bolt assembly comprising a bolt of a specified diameter including a threaded diameter, a shank, and a head. The toggle member has a threaded receiving aperture and a pair of wings pivotally mounted on opposite sides of the aperture. A bolt centering spacer comprises a generally cylindrical body having a first end, a second end, a longitudinal axis, an outside diameter substantially the same as a diameter of a hole in an associated supporting surface, and an opening having a diameter substantially the same as the threaded diameter of the bolt for receiving and centering the bolt. A flange positions the bolt centering spacer along a longitudinal axis of a hole in an associated supporting surface. At least one continuous groove circumferentially extends around an outside perimeter of the cylindrical body.

Abstract: This invention involves a locking mechanism that prevents the blade assembly of a mechanical meat tenderizer from becoming worn or non-functional. The locking mechanism is easily retrofitted into machines having blade assemblies and stripper frames and is a simple bar that mates with a slot in a screw nut.

Abstract: A hole plug and method of installing the hole plug to seal and repair a hole in a wall of a pipeline, tank or other physical structure is provided. The hole plug has a bolt with a bolt head and a threaded shank, where two or more adjacent notched washers, one or more sealing washers and an exterior washer are secured about the threaded shank and between the bolt head and a threaded nut. The present invention includes an internal sealing washer and/or an external sealing washer. The sealing washers and the exterior washer are selected to provide a surface area larger than the hole. The hole is prepared by establishing a solid, clean edge. The bolt head, a length of the threaded shank, the notched washers and an optional internal sealing washer, are passed from the exterior side of the wall and through the hole. Insertion of the notched washers is accomplished by tipping the washers at an angle to the wall and rotating the washer through the hole.

Abstract: A hanger which accommodates walls made of gypsum boards of varying thickness while allowing heavy items to be hung from the hanger. The hanger features a front plate, a backing plate and a hanger-screw. The item to be hung being suspended from the hanger-screw. The hanger is inserted into a perforation or hanger opening in the gypsum board. The hanger is introduced into the hanger hole so as to allow the backing plate to rotate about the hook of the front plate. The front plate is then pulled toward the user until the backing plate contacts a back wall of the gypsum board. The front plate is then bent in a direction so as to be substantially parallel to the backing plate and the gypsum board and so that complementary attachment holes in the backing plate and the front plate align so that the hanger-screw can engage both sets of holes. The hanger-screw is engaged into the backing plate and front plate and the gypsum board up until the stop portion of the hanger-screw abuts the front plate.

Abstract: A fastener assembly which allows relatively heavy objects to be attached to either a hollow or a solid core wall by distributing the weight of such objects along a relatively long axial plane of support defined by an elongated cantilever structure. The apparatus includes an elongated tubular body having a flange or face plate at its proximal end. The tubular body defines an axial cavity dimensioned to receive a correspondingly dimensioned support member. When inserted into a properly dimensioned hole formed in a suitable support structure such, for example as a wall, ceiling, or floor, the rear face of the face plate contacts the portion of the support structure surface which surrounds the hole. The elongated tubular body, as well as the support member received therein, is maintained in position by an anchoring member which is disposed proximate the distal end of the tubular body. The anchor member comprises a base portion defining a central, threaded aperture.

Abstract: A fastener assembly which imparts, on a surface of a first structural element to be joined to a second structural element, joining forces at three or more radially equidistant regions isolated from the edge of an opening extending through the first structural element. An illustrative embodiment of the fastener assembly includes an apertured face plate, an anchoring assembly, and a positioner for causing relative axial movement between the face plate and the anchoring assembly. The anchoring assembly includes a base portion and a projecting portion that extends in an axial direction away from the base portion.

Abstract: A step mounting assembly adapted for demountably securing a removable step member to a hollow utility pole. The step mounting assembly utilizes a backing plate having an obverse and a reverse face. An aperture penetrates the backing plate to receive the shank portion of a mounting bolt with the head thereof disposed in opposition to the obverse face of the mounting plate. A projection extends outwardly from the reverse face of the unique backing late at least partially to circumscribe the aperture that penetrates the backing plate. A spacer lug extends outwardly from the obverse face of the backing plate, the spacer lug being located in proximity to the aforesaid aperture. A washer is interposed between the bolt head and the spacer lug. An elongated bar nut is adapted to engage the threaded shank on the mounting bolt while the bar nut is captured within the projection disposed on the reverse side of the unique backing plate.

Abstract: A repair method which is used to restore planarity to concave damage in a wall of gypsum board construction, wherein the device is inserted through a small hole drilled in the damaged area, or inserted from the rear through a hole drilled in the back wall. Features of the device engage the opposing interior surfaces of the two wall boards. Tears and cracks in the wall are cemented. The device is manually powered in the manner of a jack to push out the damaged board pieces, which are still hingedly attached by the cardboard facing. Thus united, the cracks are bonded while the inexpensive device is left in the wall, acting as a permanent prop. Remnants of the device remaining outside of the wall are broken off and the hole is filled.

Abstract: A pin for fastening a number of floats together includes an inner pin and a stop member mounted therein. When the inner pin is rotated through an angle, the stop member extends beyond the pin for engagement with recesses defined in holed ears of the floats to thereby prevent rotational movements of the pin.

Abstract: A clamping apparatus for use in clamping a fitting to a pipe or other fitting. The apparatus may be used without supporting the outer surface of the pipe on the opposite side of the fitting, and in the case of a buried pipe, only a portion of the pipe needs to be excavated. The apparatus comprises a clamping plate for engaging an outer surface of the fitting with an adjusting stem threadingly engaged with the clamping plate. A locking bar is pivotally and rotatably attached to an end of the adjusting stem. A weight differential between long and short ends of said locking bar and a cable are used to pivot the locking bar between a first position thereof wherein the locking bar and a portion of the stem may be inserted through aligned openings in the fitting and pipe and a second position.

Abstract: An automatic fastening or closing device operating by moving past a dead point and comprising a base portion to which are pivotally connected arcuate tongues themselves pivotally connected by hinges to lugs and comprising each one an outwards projecting portion to form a bearing point allowing the lugs to assume a position remote from each other, i.e. an open locking position, the device being applicable to the fastening and to the locking in blind relationship of a box-like or channel-shaped part onto any support or member whatsoever.

Abstract: A wall toggle apparatus (10) for securing a threaded fastening member (18) to a wallboard wall (16) including a saw member (12) having an annular body (20). The body has a central passage (22) extending the length of the saw member and interrupted by a threaded external portion (38) having a slot (40) adapted for receiving the threads of the fastening member. The saw member further includes opposed openings (32) extending through the walls of the body. The leading end of the saw member further includes a plurality of teeth (30) for sawing through the wallboard wall. The wall toggle (10) further includes a toggle member (14) which includes a ratchet portion (54) adapted to receive the threads of the fastening member. The toggle member further includes a central hole (60). In operation the saw member is rotated against the face of a wallboard wall sawing into the wall and creating a hole therein. The saw member is further rotated to secure the saw member therein.

Abstract: A toggle member comprising an elongated cylindrical tube having a slot from one end to approximately the center of the tube, defining an opening and channel to receive a fastening bolt; a pivoting threaded bolt engaging with a round ball, the ball threaded to engage the bolt, the ball acting as a pivotally mounted system to allow the bolt to pivot in a manner relocating itself inside and parallel with the tube, said ball being attached to an elastomeric spring bias material tongue fixably seated within the tube so as to exert a spring bias in a direction to force the bolt perpendicular to the tube. The toggle member is meant to be used with a threaded bolt or screw. The elastomeric spring being thinner in the direction facing the bolt entrance allows the bolt to swivel or pivot parallel and into the tube.

Abstract: A wall anchor comprising the combination of a round locking nut and a unique swing-toggle holds a greater weight, while using a smaller drill hole, than existing with typical toggle bolt anchors. The swing-toggle is generally in the configuration of a cylinder, inwardly sliced open from both its opposing ends an arc distance greater than the diameter of the toggle bolt being accommodated and a length to still allow flush and fast securement behind the wall. A pair of projections inwardly facing from the cylinder walls seat between adjacent threads of the toggle bolt in facilitating the securement, while their placement allows for a downwardly pivoting of the swing-toggle once the anchor is inserted through the drill hole in the wall.

Abstract: A key bolt fastener has a shank with a locking key-receiving adaptation at one end. The locking key is shaped like a tweezers, having a first end that joins two arms in a resilient fashion, and a bifurcate second end in which the ends of the two arms are normally in spaced apart relationship. When the locking key is retained to the key-receiving adaptation by a pin transversely disposed in the shank and passing through slots in the arms at substantially right angles, the locking key is slidable within the adaptation to an unlocked position where the first end of the locking key extends directly outwardly of the shank and forms an extension thereof. The locking key is also slidable to a locked position wherein the locking key is substantially perpendicular to the shank and a key lock abuts the bolt shank to retain the locking key in locked position. The locking key is yieldable at the bifurcate second end to enable the key lock abutment to be moved from locked position to unlocked position.

Abstract: A keybolt (40) includes a bolt member (10) and a key member (12). The key member includes a first leg (22) and a second leg (24) which are biased apart. The first leg includes steps (21) thereon. The key member is rotationally and slidably movable in a recess (20) on said bolt member. The key member is held in said recess by a rivet (14) which extends through elongated channels (42) in the leg members. The key member is movable between a locked position in which it extends generally traversely of the axis of the bolt member so as to hold the keybolt in an aperture through which it extends. The key member is movable to an unlocked position wherein it is rotatable to extend coaxially with the bolt member and wherein the keybolt may be readily installed or removed from appropriately sized apertures.

Abstract: A blind bolt comprising a headed bolt with a male screw at the side opposite its head having an external diameter which can be inserted into through-holes of architecture members to be tightened; a rotating washer made of a cylindrical member having an external diameter which can be inserted into the through-holes of architecture members, and having on both end surfaces slopes in parallel to each other each of which has a longitudinal diameter larger than that of the internal diameter of each of said architecture members; and a nut which is screwed to the male screw. Thus, the blind bolt can be inserted into through-holes of architecture members from one side and also can be nut-tightened from the same one side thereby tightening the architecture members.

Abstract: A connecting pin has a body of great strength which will not come off position when locked and will not be caught on the way of insertion and removal.In the connecting pin, a flange 10 for locking is provided on the rear end of a column-like body. A long hole 11 is formed through in the shank part on the forward end side of the body. A shaft 12 is inserted in the shank part on the forward end side of the body in a direction intersecting the long hole and opposed two holes 17 are formed in parallel with this shaft. A lock piece 13 supported on the aforesaid shaft at a midway point and having a plurality of slots 16 in both sides is rotatably inserted and in the hole is inserted a positioning member which selectively engages in one of the slots.

Abstract: A reusable anchor apparatus removably securable to a panel. The reusable anchor apparatus includes a housing having an inner end, an outer end, a longitudinal axis extending therebetween, and a restraining member preventing insertion of the housing completely through the panel. The reusable anchor further includes a first finger pivotally coupled to the inner end of the housing, a second finger pivotally coupled to the inner end of the housing, opposing the first finger, and a plunger for moving the first finger and the second finger between a retracted position in which the fingers extend substantially parallel to the longitudinal axis, and an extended position in which the first finger and the second finger are substantially upright with respect to the longitudinal axis in opposing directions.

Abstract: A fastener which enables the attachment of an article to a panel having front and rear surfaces and an aperture formed therebetween, particularly in cases where access to the panel is limited to one side only. The fastener includes a stud having a head and a shank, a spring mounted upon said stud, and a washer having a through hole. The shank further includes a first retaining portion for securely engaging the washer within said through hole and a second retaining potion for engaging an article for securement thereto.

Abstract: A basketball hoop assembly for improving a basketball shooter's accuracy in shooting a basketball. The assembly includes a frame support which is attachable to a backboard. A plurality of different diameter hoops beginning with the largest or "regulation" diameter, and stepping smaller in diameter each have their own bracket for mating with the frame support. The smaller diameter hoops have longer frames so that the horizontal distance between the center of each hoop and the backboard, is equal for all the different hoops of the assembly.

Abstract: A number of improvements to anchoring retainers are disclosed. The improvements ensure that the retainers are securely attached to walls, and that they do not move during attachment after being attached by a threaded fastener. In one inventive feature, an improved cap for securing the fastener to the wall is disclosed wherein the cap has a thickened portion. In another feature, flip caps are disclosed which secure the anchor within a bore in the wall. In an additional feature of the invention, a tab and groove engagement insures that portions of the retainer do not move relative to each other as the threaded fastener is tightened. Finally, in another feature of the invention, structure is included into the retainer which assists the retainer in folding towards a secured position in the wall.

Abstract: A plastic clip for the blind fastening of soft-elastic rubber mats on carrier plates. The clip consists of two spreading fingers (1, 1') which can be pushed through a fastening hole (10) in a mat (5), and of two stem halves (2, 2'), joined at right angles to the fingers, and which, in the state in which the clip is supplied, project outwards and are pivotally joined to one another by a flexible web (4). To mount the clip, the spreading fingers lying adjacent each other are first pushed into the hole in the mat and are then bent apart by pivoting the two stem halves together. The two stem halves now forming one complete stem are then pressed into a hole (11) in a carrier plate (6) and anchored in the hole by the protrusion (7, 7') on the stems.

Abstract: The present invention is in the field of anchor bolt assemblies which are used as wall or ceiling mounts. The present invention includes a shaft with opposite first and second ends formed as a body and a neck joined at a shoulder. The body has a cross-section that is sized for close fitting insertion in the wall or ceiling. The neck extends longitudinally of the body to terminate in a second end. The neck cross-section is formed to have a longitudinal recess. The device also includes engagement means on the shaft for engaging a mounting element. A cross-piece having first and second arms is attached by hinge means to the shaft. The cross-piece is sized to fit within the longitudinal recess when the device is installed in the wall. Upon installation, the cross-piece snaps out of the recess and braces against the back of the wall or ceiling. The shaft maybe threaded or ratcheted.

Abstract: A fixing device is described which comprises a resilient pin 10 having a leading end portion 18 comprising a single resiliently deflectable limb and is inclined relative to the pin axis. The pin 10 is used to fasten two panels together by inserting it through one panel into a bore in the other panel, this insertion being made possible by resilient deflection of the limb decreasing the inclination thereof such that the pin 10 has a substantially axial configuration. The leading end portion 18 of the pin 10 is provided with an engagement element 20 which extends in a direction substantially perpendicular to the pin axis and is arranged to engage in a hole 38 provided in the other panel by virtue of the resilience of the pin 10 tending to cause release of the deflection of the limb such that it resumes its undeflected configuration.

Abstract: A toggle anchor for securing various types of articles to masonry or concrete walls and having a body portion and a retainer bar that is pivotally attached to the body portion and is sized so that it pivots with respect to the body portion in only one direction.

Abstract: A toggle bolt wall stabilizer to insure a snug and proper fit of the toggle bolt to ensure dimensional stability by filling the excess wall hole required to install the toggle bolt wings through the wall surface to the inside wall surface. The toggle bolt stabilizer includes a cylindrical body plug sized in diameter to match the toggle bolt wing diameter when closed during installation and including an inside passage longitudinally to receive the bolt shaft. In a preferred embodiment, an exterior annular lip on the exterior wall side may be provided to seat against the exterior wall surface and to prevent the bolt from falling through the wall aperture. Additionally, a spacer may be utilized to extend the bolt head from the wall firmly as a seat for hanging objects.

Abstract: An anchor nut insert is provided having external threads for engaging an internally threaded receptacle of a fixture to be installed. The fixture also has two wings flanking the receptacle and having fastener holes. An insert driver is provided having a projecting blade which engages a slot in the anchor nut insert for driving the insert. A guide member such as a wire passes through symmetry axes of the anchor nut insert and insert driver such that the anchor nut insert is located between the insert driver and a first terminal end of the guide wire. A swaged portion is provided on this terminal end to prevent the anchor nut insert and insert driver from sliding off the end. The fixture with the installed anchor nut insert is fed through a central hole in a structure wall having a blind side. The fixture is rotated until the wing holes are aligned with side holes in the wall and then the fixture is pulled flush against the blind side via the guide wire.

Abstract: A fastening device of the type having a stem, toggle arms at the opposite end of the stem, extending outwardly from an extended axis of the stem, a toggle hinge forming a part of the toggle arms and connecting the toggle arms to the stem and elastically biasing the toggle arms in the extended position. The toggle arms are pivotable about the toggle hinge to a closed position extending substantially parallel with the extended axis of the stem. A strap extends across the extended axis of the stem between the extremities of the toggle arms to maintain the toggle arms in the extended position. The extremities of the strap and the toggle arms are connected and a mid-hinge is formed centrally of the strap at the extended axis of the stem so that the portions of the strap on either side of the mid-hinge may pivot about the hinge to move the toggle arms and strap portions to the closed position.

Abstract: A method and an anchoring element for high strength solid wall anchoring in which a solid plastic plug is inserted in a hole in a solid wall of a porous material such as concrete. The invention provides a high strength compressive bonding between the plastic plug and the wall which simulates high strength chemical bonding. In order to effect the high strength compressive bonding, the plug is inserted into a hole in the wall having nominally the same dimension as the plug. A screw of substantially the same diameter as the plastic plug is inserted into the plug to provide the anchoring. The plastic of the plug is an extrudible material such as polypropylene, high density polyethylene and co-polymers, which is extruded against and into the solid wall of the hole by the rotary insertion of the screw. Continued rotation of the screw causes a very high compression of the plastic between adjacent threads of the screw and a thin, very highly compressed film, which substantially covers the threads.

Abstract: Axial slots are provided within threaded ends of connection rods which are oppositely threaded into axially aligned tapped bores within longitudinally spaced end walls of an elongated hollow frame turnbuckle body. Elongated lock plates are pivotally mounted, respectively, at one end thereof to the connecting rod, within the axial slots. The lock plates have limited rotation between a first axially aligned position with the axis of the connection rods and a second position at some angle thereto. In the second position the end of the lock plates project radially outwardly of the connection rod slots into contact with a side wall of the elongated hollow turnbuckle body to prevent rotation of the turnbuckle body relative to the connection rods.

Abstract: An expansion-type wall anchor having a generally hollow body, a nut element, at least one, and preferably two, retention elements and an actuating element. The retention elements are pivotally connected to the nut element and transition from an orientation substantially parallel to the body to an extended position substantially perpendicular to the body once positioned behind a wall in a rearward cavity. At the end of the body opposite the nut element, the body includes an anchor head which is of greater dimension than the remainder of the hollow body. The anchor head is positioned generally transverse to the longitudinal axis of the body and secures the body to the exterior surface of the wall. The actuating element is positioned in an opening in the anchor head and extends within the length of the body to engage the nut element. Flanges extending from the anchor head preclude rotation of the anchor once it is embedded in the exterior surface of the wall.

Abstract: A fastener which includes a threaded shank and a head. An anchor is pivotally connected to the threaded shank by a dimpled thread and is designed to pivot after the leading edge has cleared the mounting surface.