Abstract: The present invention is directed to an internally threaded prevailing-torque type self-locking fastener which employs a patch of fused thermoplastic material as the locking element and which satisfies the functional torque requirements of both IFI 100/107 (1987) and IFI 101 (1987). In accordance with the present invention the fastener comprises a metal body having a bore extending to its opposing ends, the bore having a threaded surface; a patch of polymeric material applied and fused to a portion of the threaded surface; and the fastener meeting the prevailing-torque characteristics specified in both IFI 100/107 (1987) and IFI 101 (1987).

Abstract: A threaded fastener which includes a shank, a radially enlarged head at one end, an external thread on at least a part of the shank, and a bore which extends through the head and into the threaded part of the shank. At least the threaded part of the shank is radially expandable into the threaded engagement with the wall of a suitable unthreaded bore in a workpiece in which the threaded part has been inserted. The fastener thereafter is removable by unscrewing it from the workpiece bore. The expandable part of the shank is provided with a plurality of radially extending lugs or other protrusions provided on the threaded part of the shank thereby to resist unscrewing of the fastener from the workpiece bore.

Abstract: A mounting apparatus is provided. The mounting device including an anchor secured within a cavity of a cap by a lip. The cavity is configured to allow coaxial rotation of the anchor and cap in a first configuration and rotation of the cap about the longitudinal axis of the anchor in a second configuration. The mounting device may further be provided with a collar to prevent the over-insertion of the anchor in use.

Abstract: A nut plate is formed from a generally U-shaped clip having first and second elongated legs and a connecting leg extending therebetween. The first leg has an opening therein for receipt of a nut and for securing the nut in the leg. The second leg has a pass-through opening opposing the nut opening. The nut is fully passed through the pass-through opening for securing in the first leg. The nut can be positioned in the first leg without deflection and urging away of the legs from one another. A method for making the nut plate includes the steps of forming an elongated strip, forming a nut opening in the strip and forming a pass-through opening in the strip. The strip is bent to define a clip having the first and second legs and the connecting leg. The clip can be heat treated. A nut is then passed through the pass-through opening into the nut opening and is secured to the first leg.

Abstract: An insert for use in allowing spark plugs, fasteners, couplings for hydraulic fittings and pipe threads of a given dimension to be used in a material.

Abstract: A lug nut assembly is provided for securing a wheel rim defining at least one aperture to a wheel hub including at least one threaded stud extending from the wheel hub. The lug nut assembly comprises an elongated sleeve that includes a central bore that defines a longitudinal axis. The elongated sleeve has a secured end rotatably secured to the wheel rim and an opposed distal end extending outwardly from the rim. The sleeve includes at least one wrench engaging surface. A nut, having a central threaded bore that is adapted to matingly engage the threaded stud, is slidably mounted within the sleeve to move coaxially along the longitudinal axis of the sleeve. Means are provided for preventing independent rotation of the sleeve relative to the nut.

Abstract: A three-sided, progressively-formed threaded fastener is comprised of a plurality of planar longitudinal faces intersecting at comer areas. Shank tabs extend downward from the bottom of each of the faces at the base of the fastener. Threaded regions along the inside surface of the planar faces are coined indentations applied during the formation of the fastener. A plurality of wedge-shaped protrusions extend downward from the comer areas at the base of the fastener. The combination of shank tabs and wedge-shaped protrusions form a clinch profile along the bottom of the fastener so that it may can be affixed to a sheet of metal by clinch fit.

Abstract: The body bolt absorber assembly includes a lower body absorber made from rubber or a similar material with an undersized aperture, formed either during manufacture or by subsequent piercing, to slideably engage and capture a bolt. The lower body absorber further includes interior cylindrical walls with an inwardly extending lip thereby forming a chamber to engage and capture a washer. The washer includes an aperture through which the shaft of the bolt passes. The engagement and capture of the bolt and the washer provides for a one-piece modular assembly.

Abstract: An improved sleeve for insulating a tacking strip from materials applied to furniture products. The sleeve covers and encompasses the entire tacking strip with the exception of a central corridor through which tacks from the strip extend. The sleeve slides over the tacking strip and includes a flexible flange graduated in thickness on either side of a central corridor left open by the sleeve. The sleeve is installed around the tacking strip by a lateral displacement of the sleeve over the strip causing the graduated flanges to deform slightly upon contact with each tack along the central corridor. Due to the deforming properties of the flange, resistance on each tack is small enough that insertion of the sleeve over the tacking strip not hindered yet sufficient to prevent further lateral displacement of the sleeve once it is installed around the tacking strip.

Abstract: A fastener assembly includes (a) a fastening member that includes an out-of-round portion centered about a longitudinal axis and configured for engagement with a torque-transmitting tool, a frustoconical load-bearing surface that extends radially outwardly from the longitudinal axis, and a threaded portion that is centered about the longitudinal axis; (b) a metallic, frustoconical thrust washer having a concave surface positioned adjacent to the load-bearing surface of the fastening member, and a convex surface; and (c) a pressure ring that includes a flange, a frustoconical load-bearing surface formed by the flange and positioned adjacent to the convex surface of the thrust washer, and a frustoconical undersurface oriented to contact a complementary depression in a workpiece.

Abstract: An insert for thread repair having an interior thread and a specially formed exterior thread which both precludes upheaval between sides of the cracked material on opposite sides of the crack and draws the crack together, radially inward towards the center of the insert. The insert may include a driving head, either solid or having a central hollow and may include a frangible neck to dissociate the head from the insert.

Abstract: A vacuum-cleaner pipe assembly can have inner and outer pipes telescopingly engaged with one another and on a sleeve surrounding the inner pipe, a locking body which engages in selected detents formed on the inner pipe. A rocker or rotatable eccentric in a housing on the sleeve surrounding the inner pipe bears directly against the locking body and is biased by a spring into the locking position.

Abstract: A locking nut includes a threaded main bore for receiving a threaded portion and a number of oblique bores in each of which is positioned a locking pin having a forward end for engagement against the threaded portion. The oblique bore and the associated locking pin have a common longitudinal axis extending at generally the same angle to the axis of the threaded main bore as one of the flanks of the thread of the threaded main bore so that the forward end of the locking nut has at least one flank generally parallel to the longitudinal axis and lying parallel to the portions of the one flank of the threaded main bore adjacent the inner end of the oblique bore. Each locking nut is generally cylindrical and possesses an outer surface that is grooved or serrated to facilitate insertion of the locking nut into the respective oblique bore.

Abstract: A method and apparatus shapes and dimensions the flanges of angle plates to ensure that the plates can be stacked without nesting.

Abstract: A blind rivet having a mandrel with a predetermined breakable stem (4) disposed within a body with a bored (18) shank (14). A radial flange (16) is formed on one end of the shank and the other end (20) of the shank is engaged with the enlarged head (2) up the stem the diameter of which is substantially equal to that of the shank. The mandrel below the enlarged head has a plurality of indentations (8) formed on the stem to define a square of reduced cross-sectional area. The shank has an enlarged internal cross-sectional area (22) to substantially engage the indentations of the stem below and adjacent to the enlarged head of the stem.

Abstract: A flexible disk for securely holding insulation to an air duct made from a resilient material, and having a convex upper surface and a diameter of from 1.5 inches to 4.0 inches. A washer for receiving a disk fastener is centrally positioned in the disk top, which is thicker than the top. A rim is located at the circumference of the top which has a planar bottom for contacting the insulation. When the disk is properly attached to an air duct by a fastener, it deforms to a concave configuration by which it resiliently exerts force on the underside surface of the disk and the rim which in turn presses downward on the insulation, securely holding the insulation in place without crushing the insulation.

Abstract: A pressure fluid conduit coupling fitting and method of making same, wherein the nipple tube fitting shank is made of specially grooved rigid material. A conventional elastomeric hose conduit having an open end telescopically receives the grooved fitting shank, and a conventional crimp-collar is sleeved over and shrunk-deformed onto the hose open end to permanently sealably secure the coupled conduit connection. An external circumferential surface of the fitting shank has one or more circumferentially continuous sharp edge external grooves of a shallow depth and predetermined width that are defined by the shank ribs formed between the grooves. The junction of the groove sidewalls with the respectively adjacent shank rib surface defines a circumferentially continuous sharp edge formed generally as a 90° junction of these groove sidewalls and rib surface, plus or minus a few degrees.

Abstract: An enhanced strength screw-type, self-tapping masonry anchor bolt for fastening a fixture or other attachment to masonry in which a hole is drilled to receive the anchor. The anchor is provided with a shank having a root section surrounded by at least one helical male cutting thread whose crest diameter exceeds the diameter of the hole whereby when the anchor is screwed into the hole, the cutting thread then cuts a female thread in the bank of the hole to mechanically retain the anchor therein to impart to the anchor a holding power that resists axial pull-out forces. The cutting thread has a leading face that is arcuate or radial (circular) and a trailing edge that is flat and disposed essentially normal to the shank of the bolt. Also provided is a masonry anchor for use with thin-walled masonry articles such as cinder blocks which is essentially a sleeve of a durable polymeric material.

Abstract: The present invention relates to a novel screw for use with dry wall and for hanging articles therefrom. This invention provides a screw with a head adapted for engagement with a driving tool, a shank whose diameter decreases from the head to a distal end, and a helical thread with a pitch diameter of at least about twice the largest minimum diameter of the shank. The thread including a geometry of an auger.

Abstract: A taper nut retention device mechanically fastens a plurality of pressure reduction disks. A cage end member at one end of the stacked disks has a series of counterbores, each aligned with respective mounting holes in each disk. A second cage end member at the other end of the stack has a series of inwardly converging, tapered bores with shallow taper angles, each aligned with respective mounting holes and a counterbore. A taper nut with a threaded interior and an outer tapered surface with a shallow taper angle matching the tapered bore is inserted into and engageably contacts the tapered bore. A threaded bolt is inserted into the counterbore and through the disk mounting holes to threadably engage the taper nut. Tightening of the bolt and nut mechanically secures the stacked disk assembly. A process for making the stacked disk assembly wherein each disk and the cage end members are plated with nickel and the components are fused together in a brazing oven.