Abstract: A plural tapered fastener with a material receiving inward region. Fastener embodiments have particular utility in penetrating and securing work pieces of high density material, such as medium density fiberboard and high density fiberboard, without blemishing of the workpiece. A fastener may have a head and a shank extending from the head with an axis being defined by the shank and head. A head projection extends from a proximal end to a distal end away from the axis. A tapered portion is provided in the shank which tapers the shank axially inward to the head to define a material-receiving tapered inward region. A further tapered portion is provided along a lower leading edge of the head projection. During fastener driving, the inward region receives displaced workpiece material and the tapered head projection better penetrates the workpiece providing for more complete fastener driving with minimized blemishing of the workpiece.

Abstract: A device (H) to be mounted to a friable wall (W) comprises a body (10) and at least one main saber tooth (12) extending rearwardly from an upper portion of the body (10) and adapted to be driven into the wall (W) for securing the device (H) thereto. The main saber tooth (12) is arcuate and has a pointed rear free end (22), and is adapted to be arcuately driven into the wall (W). An arcuate and pointy secondary saber tooth (14) extends rearwardly from a lower portion of the body (10) for insertion into the wall (W) before the main saber tooth (12) is inserted therein. The main saber tooth (12) defines a lower enlarged, and typically flat, load-bearing surface (30) for bearing against material of the wall (W). The main saber tooth (12) includes an upper transversely curved surface (32). A hook member (20) is provided on a front part of the body (10) for suspending items therefrom once the device (H) has been mounted to the wall (W).

Abstract: An affixing pin for penetrating a dry wall includes a pusher handle and a penetrating pin. The penetrating pin has a sharp penetrating end portion, a tail end portion connected with the pusher handle, and an elongated pin body integrally extend portioned between the penetrating end portion and the tail end portion, wherein the penetrating pin has a non-circular cross section defining at least one penetrating corner having a predetermined inclination angle between two corresponding outer surfaces of the penetrating pin; such that when the penetrating pin is rotatably pressed towards the dry wall by the pusher handle, the sharp penetrating end portion is arranged to rotatably penetrate the dry wall, in which the penetrating corner substantially assists optimally breaking the dry wall so as to maintain an optimal performance of the affixing pin in penetrating the dry wall while maintaining secure engagement between the penetrating pin and the dry wall after penetration thereof.

Abstract: A pin fastener includes a body having a first end that extends to a second end through an intermediate portion. The intermediate portion includes a first substantially constant diameter section that extends from the first end toward the second end, a first tapered section that extends from the first substantially constant diameter section, a second substantially constant diameter section that extends from the first tapered section, and a second tapered section that extends from the second substantially constant diameter portion to the second end. The pin fastener further includes a knurled section formed in the second substantially constant diameter portion.

Abstract: A device (H) to be mounted to a friable wall (W) comprises a body (10) and at least one main saber tooth (12) extending rearwardly from an upper portion of the body (10) and adapted to be driven into the wall (W) for securing the device (H) thereto. The main saber tooth (12) is arcuate and has a pointed rear free end (22), and is adapted to be arcuately driven into the wall (W). An arcuate and pointy secondary saber tooth (14) extends rearwardly from a lower portion of the body (10) for insertion into the wall (W) before the main saber tooth (12) is inserted therein. The main saber tooth (12) defines a lower enlarged, and typically flat, load-bearing surface (30) for bearing against material of the wall (W). The main saber tooth (12) includes an upper transversely curved surface (32). A hook member (20) is provided on a front part of the body (10) for suspending items therefrom once the device (H) has been mounted to the wall (W).

Abstract: A dry wall affixing pin, having a penetrating pin which has a penetrating tip for penetrating through a dry wall, a controlling tail coupling with the penetrating tip for determining a penetrating direction of the penetrating pin, and a force distributing surface which extends from the penetrating tip towards the controlling tail. The dry wall affixing pin also has a pusher head coupling with the controlling tail which has a grip handle and a flat pushing surface disposed at an end thereof for user to conveniently push the affixing pin into the dry wall. The force distributing surface further has a flat and peripheral surface for minimizing a contact force against materials from the dry wall while penetrating through.

Abstract: A trench plate connector comprising a large-diameter skirt member for dissipating lateral forces, applied onto the trench plate connector, is disclosed. The large-diameter skirt member is threaded onto a stud, and can be locked onto the stud with a nut. Once the large-diameter skirt member is locked into place, one or more arms of the large-diameter skirt member can be used to apply rotational forces onto the trench plate connector to thereby secure or remove the stud of the trench plate connector from the trench plate. Each arm of the large-diameter skirt member can be impacted with a hammer, for example, to apply substantial rotational forces onto the trench plate connector for tightening or removal thereof. A unique double-threaded stud is used to accommodate the large-diameter skirt member. The double-threaded stud comprises a first thread on one end for being threaded into a trench plate, and a second thread on the other end for accommodating both the large-diameter skirt member and a securing nut.

Abstract: A forged trench plate connector having a forged steel unitary eye member and a large-diameter skirt member for dissipating lateral forces, applied onto the trench plate connector, is disclosed. The large-diameter skirt member is threaded onto a double-threaded stud used to accommodate the large-diameter skirt member. The double-threaded stud comprises a first thread on one end for being threaded into a trench plate, and a second thread on the other end for accommodating both the large-diameter skirt member and a securing nut. Once the large-diameter skirt member is locked into place, one or more arms of the large-diameter skirt member can be used to apply rotational forces onto the trench plate connector to thereby secure or remove the stud of the trench plate connector from the trench plate.

Abstract: A hammer-in expansion fastener for embedding into a wall and receiving a screw having an elongated body which is provided with two opposite ends and a bore extending into it from one end to receive a screw. The other end of the body is tapered inwardly to a leading end of the body to an extent allowing the wall plug to be driven into a wall of building material. The other end is further provided with a non-uniform taper of: (a) between 12° to 18° to the longitudinal axis of the body at the leading end and about 10 mm in length measured along the longitudinal axis; and (b) from 4° to 8° to the longitudinal axis of the body at a portion remote from the leading end.

Abstract: An earth anchor for a pole that includes a base, a spike, and attaching apparatus. The base has a lowermost face for contacting the earth, an uppermost face opposite to the lowermost face, and a longitudinal axis. The spike is for insertion into the earth, and depends from the lowermost face of the base. The attaching apparatus is for engaging a pole, and is disposed on the uppermost face of the base. The base is disk-shaped with a circular periphery for providing a blunt round edge that eliminates corners when tipped on which a player could fall and be injured, and is wide for leaving enough room for the pole to still be pushed into the earth using foot pressure. The attaching apparatus includes a stop boss disposed on the uppermost face of the base, along the longitudinal axis of the base, which centers the attaching apparatus for allowing the pole to have identical stability in all directions.

Abstract: A nail for fixing a shoe to a hoof includes a head, and a shank extending from the head generally along a centerline and terminating in a tip. A reaction region is formed in the shank adjacent the tip and has a flattened profile having front and rear surfaces interconnected by respective edge surfaces. In the reaction region the front surface is convexly curved to incline the front surface relative to the centreline of tho shark The edge surfaces converge relative to each other towards the tip, whereby, on forcing the nail into the hoof, the reaction region is adapted to produce a resultant force on the nail. The resultant force is caused by engagement of the reaction with the hoof. The resultant force is adapted to predispose the nail to bend about the rear surface of the reaction region Also disclosed are processes for forming a horseshoe nail.

Abstract: A screw threaded insert adapted to be fitted in a bore of a workpiece made of thermoplastic material. The screw threaded insert is externally tapered at an angle of about four (4) degrees and is defined externally with a thread of approximately equal pitch and depth, and of saw toothed shape. The insert is also threaded internally for receiving a bolt. A pair of cutting slots is also provided.

Abstract: A star shaped fastener having at least five spaced vertical cups and edges about a central core with the included angle being 90.degree. reducing the fabricated material by 50% and increasing the surface area by 15% compared to a common round nail of equal radius. The holding power is significantly enhanced by compression laterally and vertically into cups, shoulders therein and/or a taper of less than 14.degree..