Abstract: A device for attaching a plate or cap over an opening, comprising a rod or wire extending from the front through the plate or cap. On the end of the rod or wire extending into the opening, there is provided a spring clamp whose end remote from the rod or wire has a sharp point. The plate or cap has a closeable opening therein for introducing a foamable resin thereinto, which foamable resin forms a foam in the plate or cap and in the opening and, thus, seals the opening.

Abstract: The present invention relates to fixing pegs suitable for being implanted in a friable material such as expanded polystyrene, for example. The peg comprises at least one tab (1-3) made from a thin plate and having a pointed first end (11-13). A head (15) fixed to the second end of the tab(s) is larger in section than the tabs. A closed pouch (20) capable of being punctured and suitable for containing glue co-operates with pouch-puncturing means (21) associated with the tab and pouch-maintaining means (22, 23) co-operating with the tab in such a manner that when thrust is applied to the pouch in a direction including a component directed substantially away from the pointed end of the tab towards the head, then the pouch is punctured and the glue can run over at least a portion of the wall of the tab.

Abstract: A rod-shaped tension member formed of fiber reinforced composite material is utilized as an anchoring rod in foundation and mining construction, or as a reinforcing member in concrete and prestressed concrete construction. At least, in an axially extending region where it is to receive an anchoring member, such as a rod, the tension member has a continuous helical thread formed of alternating ribs and recesses. The anchoring member has a corresponding thread so that it can be screwed onto the tension member thread. An intermediate layer is provided between the threaded regions of the tension member and the anchoring nut, and is formed of a material affording large plastic deformation relative to the tension member when slight stress increases occur at overload conditions.

Abstract: An insert for use of attachment in a threaded member, such as a bolt or the like, to a honeycomb panel by the use of epoxy adhesive, the insert being in the form of an unitary elongated metallic member having a generally cylindrical external surface and an integral annular collar position, the external cylindrical surface having a reduced external diameter circumferential recess in the form of a spiral extending from adjacent one end to the other end of the cylindrical member and having an internal threaded recess therein, the external surface being configured to resist pull-out and torque-out when epoxy adhesive has solidified to retain the insert in a panel.

Abstract: A method for preventing loosening of a bolt fastened to a metallic member coated with an anticorrosive paint film without removing the paint film. Anticorrosive painting is applied on a metallic member, and then the painted film is thinned by applying an urging pressure onto a bolt seat surface portion of the painted metallic member by means of a press rod. The bolt seat surface portion of the metallic member also may be flattened by applying an urging pressure on the bolt seat surface portion by means of a press rod or by machining the bolt seat surface portion before the anticorrosive painting is applied on the metallic member, and then the painted film is thinned by applying an urging pressure onto the above-mentioned bolt seat surface portion by means of a press rod.

Abstract: A pickup truck tail gate liner has secured thereto one or more attaching members which confront that surface of the tail gate to which the liner is to be applied. The attaching members are premanently or removably secured to the liner and adhesively bonded to the tail gate without necessitating the provision of any holes in the tail gate.

Abstract: A method and apparatus for aligning and mounting a machine component includes an aligning member with perforations, that is positioned and mounted over an aperture in a mounting portion or bracket of an aligned and removably mounted machine component, forming a cavity. An adhesive is introduced into this cavity through one of the perforations, permanently bonding the aligning member to the mounting portion or bracket, thereby enabling the component, thereafter, to be removed, serviced and simply remounted without further need of realignment. This method and apparatus are particularly useful for aligning and mounting components such as the copy sheet registration assembly of an electrostatographic copier or printer.

Abstract: A screw anchoring device for aperture sealing attachment with an apertured panel to confine insulating material foamed in place between the panel and an attached spaced wall or other structure. The device includes a plate member having corners and a generally flat portion lying in a plane with a central aperture forming a helical screw receiving impression. The device also has a pair of upstanding tabs projecting from one face of the generally flat portion of the plate member at opposite sides of and adjacent to the screw impression. The plate member has a raised portion formed from the plate member at the corners and along each of two opposite edges of the flat portion of the plate member. These raised portions are convexly curved upwardly from the plane of the flat portion and from the face opposite from the face with the upstanding tabs and the corners of the plate member are semi-spherical shaped.

Abstract: Bushings are embedded within a production drill plate to replicate the hole pattern of a master hole pattern plate. The exterior surface of each bushing is threaded, as is the wall of a receiving hole in the production drill plate. The pitch of the bushing and hole are the same but the pitch diameters are somewhat different so that the threads of the bushing are loosely engaged within the threads of the hole. When the bushing is potted in a properly aligned position, the containment potting material becomes compressed in the thread engagement area thereby resisting axial displacement of the bushing.

Abstract: A captive screw assembly for impeding the removal of a screw from a housing or other part. The assembly includes a housing having a hole and an annular flange projecting inwardly in the hole at a location spaced from the hole's two ends. A screw encircled by a coil spring extends through the housing hole with the spring being retained between the screw head and the inwardly-projecting flange. A stopnut, which is sized to be freely received in the housing hole, is threaded to a selected location on the screw. The screw is urged longitudinally upwardly from the housing by the coil spring, to a point where the stopnut abuts against the inwardly-projecting flange. A full removal of the screw from the housing is thereby impeded.

Abstract: A method and apparatus for the attachment of plastic outer body panels to automotive vehicle subframes including positioning a cup within apertures in the subframe, applying a thixotropic heat curable plastic/adhesive to the cup, heat curing the plastic/adhesive in situ while forming a blind aperture in the plastic/adhesive, and securing the body panel to the subframe through threaded insertion of a fastener into the blind aperture.

Abstract: A securing device is disclosed in which a cylindrical member having a male thread provided on the outside circumferential surface and to which an adhesive is applied is screw-engaged in the tapped hole of another member from the entrance of the hole so that the cylindrical member is secured in a prescribed position inside the other member, wherein the inside diameter of the female thread of the tapped hole is made larger in the portion of the female member from the entrance of the hole to the prescribed position than in the prescribed position of the female member.

Abstract: A fastener element is ejection molded from an engineering resin of a type that will bond to potting resin used for securing the fastener element within a cavity formed within a panel of composite material. The fastener element includes flow control disks spaced apart along a stem portion between end portions. Flats are formed on opposite sides of the flow control disks, below fill and vent openings. Resin introduced into the fill hole travels down to the bottom of the cavity and around the fastener element and fills the cavity from the bottom up, so that the presence of resin at the vent opening will indicate that the cavity has been filled with resin and does not include an airspace or void.

Abstract: A fastener unit for use on a composite nonmetallic surface which includes a channel of composite nonmetallic material, which may be bonded or riveted to the supporting surface, and has at least one opening through it, and a fastener assembly which includes a basket having an opening in its center and slotted deflectable end walls, a retainer member, including a flat portion with tabs projecting into openings in the side flanges of the channel and a tubular portion extending into the opening in the central web of the channel, and a nut having a base portion with tabs received in the openings in the end walls of the basket. Clearances are provided so that the nut has limited lateral floating movement. The nut is removable from the remainder of the unit by deflecting the end walls of the basket, which permits the nut to be replaced.

Abstract: The composite plug for mounting objects in holes drilled in masonry and the like comprises a plug body having a screw passage for receiving a mounting screw and an expanding region expandable by insertion of the mounting screw, the plug body being provided with outlet openings for mortar introduced into the plug body, channels forming guiding surfaces in the screw passage, the guiding surfaces leading to the outlet openings and subdividing the screw passage into a front region and a rear region, and grooves forming longitudinal channels extending along an outside of the plug body, the outlet openings merging into the logitudinal channels. The outlet openings are located in the front region and the screw passage has a portion with an increased diameter. A stopper which is insertable in the portion of the screw passage of increased diameter is provided and formed as a hollow member. The stopper has openings which are in a alignment with the outlet openings.

Abstract: The invention is a flush head fastener for joining two or more structural elements together. The structural elements have a fastener hole therein with one of the structural elements being countersunk to accommodate the head of the fastener. The fastener includes head and shank portions and a layer of material joined to the top of the head of the fastener which can readily be deformed to fill any gaps between the head and the countersink. Thereafter, the excess material can be removed leaving an aerodynamically smooth surface. The surface also will have no electrical discontinuities. The procedure for installing the fastener includes the steps of (1) providing two or more structural elements having a countersunk fastener hole therein (2) thereafter the fastener is installed in the hole (3) the layer of material is deformed so as to fill any gaps between the head of the fastener and the countersink, and (4) thereafter, excess material is removed leaving a smooth external surface.

Abstract: A method and apparatus for the attachment of plastic outer body panels to automotive vehicle subframes including positioning a cup within apertures in the subframe, applying a thixotropic heat curable plastic/adhesive to the cup, heat curing the plastic/adhesive in situ while forming a blind aperture in the plastic/adhesive, and securing the body panel to the subframe through threaded insertion of a fastener into the blind aperture.

Abstract: A roof anchor for supporting an underground mine roof or the like is provided. The roof anchor has an elongated shaft with a head formed at one end. The head supports a washer and a roof supporting plate that surrounds the mouth of a blind bore formed upwardly into the roof. A resin capsule is positioned within the blind bore above the roof anchor. The shaft of the roof anchor has an adjustably securable annular washer surrounding the shaft. The annular washer is fixed in a position so that when the resin capsule is ruptured to release the resin to blind the roof anchor within the bore hole, the resin completely fills the bore hole from the blind end of the bore to the rigid annular washer fixed to the shaft of the roof anchor.

Abstract: A rock-bolt bar having raised deformation its entire length and having an end portion threaded to receive a standard helically threaded nut. The raised deformations are all raised to the same height above a minor diameter of the bar and the depths of the threaded portions of the raised portions do not extend to the minor diameter. The equal height raised portions may be of various configurations, all extending longitudinally the entire length of the bar.

Abstract: A fastener designed to be securerd into a hole in an aircraft panel can be manufactured from an integral engineering thermoplastic structure which includes a centrally located cylindrical body carrying flanges at its ends. One of these flanges has diametrically opposed notches leading through it. Ribs are located on the flanges so that when the fastener is within a hole in a panel and a fluid resin composition is forced in to one of the notches the flow is divided into two separate streams, each of which flows in a labyrinth-like manner in reaching the other notch.

Abstract: A screwthreaded insert comprises a series of generally cylindrical body portions provided with inclined ribs or teeth, with the teeth of one portion extending in the opposite direction to those of the next adjacent portion, and the successive toothed portions being separated by grooves. The fastener is made by diecasting, and a pair of flats is formed on opposite sides of a diameter of the body.

Abstract: An anchor member is formed of an axially extending core member enclosed from one end toward the other by an electrically non-conductive plastics material jacket. The anchor member can be secured in a borehole in a receiving material by a hardenable mass. The jacket at the one or leading end of the core member has a tip located on an extension of the core member axis, so that the tip abuts the center of the base of the borehole. With the centering action afforded by the tip, damage to the jacket is prevented as the anchor member is inserted into the borehole.

Abstract: An anchoring unit is made up of a screen-type sleeve and an insert sleeve to be placed into the screen-type sleeve. The unit is anchored by a hardenable mass. After the screen-type sleeve is inserted into a borehole in a structure with internal open spaces, the hardenable mass is injected into the screen-type sleeve. When the insert sleeve is placed into the screen-type sleeve, the hardenable mass is forced outwardy through openings in the screen-type sleeve into the open spaces in the structure. The two sleeves each have an inside surface and an outside surface with alternating projecting surfaces and recessed surfaces to facilitate a positive lock with the hardenable mass. Further, the alternating surfaces improve the distribution of the hardenable mass. Preferably, the two sleeves are formed of a plastics material. A fastening element can be inserted into the insert sleeve for securing an object to the structure.

Abstract: A rotary welding member made of synthetic resin material comprising a post portion, and a disk-shaped flange portion integrally mounted on one end of the post portion and having a plurality of through holes in the direction of wall thickness thereof for the dissipation of an excessive portion of frictional heat generated during a rotary welding process whereby deleterious or degrading effects upon a base plate, to which the rotary welding member is welded, are effectively prevented.

Abstract: A method and apparatus for tunnel lining is provided made up of arcuate liner segments having a formed body with two end walls and two substantially parallel sidewalls, at least two pins extending from one sidewall intermediate its length in the median plane of the body and transverse to said sidewall, a like number of openings in the other sidewall each adapted to receive one of said at least two pins from two adjacent interfitting segments and locking means in said opening permitting insertion of said at least two pins in said openings of adjacent segments and lockingly engaging the same against removal and urging said two adjacent fittings into tight end to end engagement.

Abstract: Described is an adhesively securable fastener comprising a body having an opening; an adhesive positioned within said body and registering with the opening of the chamber, a plunger means for applying pressure to said adhesive such as against an anvil means thereby adhesively securing the fastener to a substrate. Also described is a method for securing a substrate using the fastener described herein.

Abstract: A pin for injecting a grout material comprising an upper structure (I) into which an upper half portion (1') wherein a screw thread (2) and a lengthwise hole (3) are formed, a packing (4), a washer (5) and a knock pin (11) for knocking a grout pin (10) are inserted, and a lower structure (II) into which a lower half portion (1"), both tongued pieces (7', 7") of a slit wherein said slit (7) and a knurling portion (8) are formed and in the space formed by both tongued pieces (7', 7"), through the lengthwise hole (3) of said upper structure, the grout pin and the knock pin for knocking said grout pin are inserted.

Abstract: A pre-cast dome-like shell is loaded with a predetermined amount of curable sealant. The sealant and dome are similar in composition. The dome is pressed over the exposed end of a fastener. An elastic portion of the shell can expand, thereby increasing the internal volume of the shell to accommodate small variations in sealant amount. A close fit between the shell and fastener, combined with an adequate shell wall, insure proper shell orientation and barrier thickness.

Abstract: A rotary welding member made of resin comprising a post portion, and a disk-shaped flange portion integrally mounted on one end of the post portion and having a plurality of ribs formed thereon in the radial direction.

Abstract: An insert for securing a threaded object in a recipient material. The insert is formed from a cylinder-shaped body. The body has a threaded cavity at its first end for receiving a threaded object. A portion of the cylinder's exterior surface adjacent to the first end is threaded for placing the insert in a hole in the recipient material and then stabilizing the insert therein. Additional stability is provided by the interface of a flange on the cylinder's second end with an adhesive which is placed in the hole with the insert. The flange is formed by a circumferential recess near the cylinder's second end. The adhesive occupies the recess and, when it hardens and bonds to the recipient material adjacent to the recess, serves as an circular barrier abutting the inner boundary of the flange. The barrier prevents the insert from being pulled from the hole.

Abstract: The present invention relates to a wire harness retainer stud adhesively bonded to an automobile body panel. This stud is used to mount a wire harness to automobile body panels. The stud contains a contact adhesive and an uncured adhesive. The contact adhesive is used to mount the stud to the body panel until the stud and panel are heated to cure the uncured adhesive, thereby bonding the stud to the panel. A method of, and apparatus for, automated assembly of the stud is also disclosed.

Abstract: Anchor device for securing a rock bolt in a borehole, comprising an elongated cage having a perforated elongated wall confining an elongated chamber containing a bonding means for bonding the rock bolt within the borehole, the cage having a trailing end adapted to mount the anchor device onto the leading end of a rock bolt for insertion into the borehole.

Abstract: A receptacle is provided for receiving a plastic/adhesive used for mounting plastic body panels to a metallic subframe of an automobile in which the receptacle is formed through progressive die stamping from a cross formed blank. The receptacle is formed as truncated pyramidical shape and includes two sides with bent-over flanges for engaging the metallic subframe and two shorter sides which lock the receptacle to the subframe in snap-fit relationship after insertion into a square aperture.

Abstract: A fastener element is ejection molded from an engineering resin of a type that will bond to potting resin used for securing the fastener element within a cavity formed within a panel of composite material. The fastener element includes flow control disks spaced apart along a stem portion between end portions. Flats are formed on opposite sides of the flow control disks, below fill and vent openings. Resin introduced into the fill hole travels down to the bottom of the cavity and around the fastener element and fills the cavity from the bottom up, so that the presence of resin at the vent opening will indicate that the cavity has been filled with resin and does not include an airspace or void.

Abstract: A method for mounting an insert fastener to accommodate a bolt in lightweight panels is described. A hole is bored in a panel to penetrate the core and upper facial sheet and then is filled with a quick setting resin. A fastener having a flat circular head and central threaded bore is inserted into the hole. Integral with and depending from the head is a cylindrical body with a pair of radial flanges parallel to each other and to the head. The flanges are spaced apart from each other and the head. The edges of the flanges are serrated. Two holes, one on each side of the central bore, are present in the head to allow excess resin potting material to leave the hole in the lightweight panel. A bolt for holding auxiliary structures to the panel is screwed into the central bore.

Abstract: A rotary welding member made of synthetic resin material comprising a post portion, and a disk-shaped flange portion integrally mounted on one end of the post portion and having at least one groove in the mounting surface thereof for permitting air to flow therethrough with respect to an exterior periphery surface portion of the flange portion whereby excess frictional heat generated during the rotary welding process is effectively dissipated.

Abstract: An improved fastening device is disclosed for securing within an aperture of a workpiece. The invention comprises a longitudinally extending body member for insertion within the aperture of the workpiece. The fastening device includes a locking shoulder secured to the longitudinally extending body member such that the shoulder is spaced relative to a surface of the workpiece by resilient material. A groove is disposed in the body member for receiving the resilient material for coacting between the body member and the workpiece for reducing undesired movement therebetween. In an alternative embodiment of the invention a fastening device is disclosed for the reception therein of a thermo-setting material, the device being secured within a plurality of apertures defined by a multi-layered workpiece. The fastening device includes a first lamina member which defines a first plurality of transverse bores each of which are aligned with an aperture of the plurality of apertures.

Abstract: A method for preventing corrosion of an expandable mounting element which involves introducing a sealing composition into a mounting hole of a support structure first to fill the hole about half-way, then driving an expandable mounting element into the half-filled hole to displace the sealing composition initially against the base of the mounting hole and then up along the surface of the expandable mounting element until the excess emerges out of the mounting hole. A compressible impact device, which has an upper and lower part and a spring part fixed therebetween, is arranged so that an impact tool can be driven against the upper part to fully drive the expandable mounting element into the mounting hole, effecting a sealing compaction in correspondance with the pressure exerted by the spring part. All gaps and cracks are thereby sealed against corrosive media.

Abstract: A fastener, particularly adapted to retain a screw, comprises a sheet metal body member. A double-sided adhesive tape may be adhered to one face of the metal member. The metal member is a unitary member having a top flexible leaf portion with a screw impression to receive and retain a screw, a "U" shaped connecting portion, a bottom plate portion having a clearance hole to guide the screw, and a cone-shaped ring-like raised portion around the clearance hole. The cone portion may telescope into the screw impression dome to reinforce the dome. Three tabs project from the bottom face of the bottom leaf and project through the tape.

Abstract: A fastener-carrier system comprises at least one metallic threaded fastener member including a head portion, a tip portion and an externally threaded shank portion intermediate the head and tip portions and defining an axis. A carrier strip comprises a substantially flat, elongate member of a moldable material and the fastener head portion is moldably embedded into the carrier strip with the tip and threaded shank portions projecting outwardly of the carrier strip. The carrier strip includes a substantially flat workpiece-engaging surface, with the fastener extending outwardly thereof for extending into a receiving aperture in a facing workpiece surface. A raised, elastically deformable skirt portion is provided on the workpiece-engaging surface surrounding each fastener for positively engaging the workpiece surface and for deforming sufficiently thereagainst to form a seal completely around an otherwise exposed portion of the fastener at the workpiece-engaging surface.

Abstract: An anchor for secure reception of a fastener such as a screw shank can be frictionally welded, by high-speed rotation of the anchor, to the structure upon which the fastener is mounted. The anchor is molded from frictionally meltable material, for example a typical engineering thermoplastic such as ABS resin. The anchor has a generally cylindrical body with an end face at one end defining a surface for frictional welding to the compatible structure. The end face has an aperture which receives the screw shank or the like. The cylindrical body has a cup-like configuration having a cavity formed therein extending from the end face to an open end at the opposite end of the cylindrical body. A cylindrical boss is formed within the cavity and extends from the aperture at an entrance end for receiving the fastener. The boss has a frangible cap covering the end of its bore opposite the entrance end.

Abstract: An improved insert fastener for use in lightweight panels is described. The fastener has a flat circular head overlapping a hole in the panel. Integral with and depending from the head is a cylindrical body with a pair of radial flanges parallel to each other and to the head. The flanges are spaced apart from each other and the head. The edges of the flanges are serrated. A central threaded bore through the head and cylindrical body receives a bolt for holding auxiliary structures to the panel. Two holes, one on each side of the central bore, are present in the head to allow excess epoxy resin potting material to leave the hole in the lightweight panel.

Abstract: A supporting bush designed to define a connecting seat for a known type of panel fastener on a motor vehicle interior cover panel composed of a base panel and a foam portion; the aforementioned bush being composed of a first cup-shaped element, designed to be gripped in fluidtight manner between the foam portion and the base panel; a second cup-shaped element, designed to click on to the first so as to define with the same an inner cavity for receiving the head on the panel fastener; and a break-off tab for protecting a sleeve portion on the second cup-shaped element, through which sleeve portion access is permitted to the aforementioned inner cavity.

Abstract: A fastener assembly in which a fastener is adhesively secured within a borehole. A fastener having a shank with longitudinal channels is inserted within a borehole. A fluent adhesive is forced along the longitudinal channels of the fastener to occupy the space within the bore adjacent to the fastener. The adhesive is permitted to harden in situ so as to provide a strong chemo-mechanical bond.

Abstract: The invention relates to a method of inserting a tubular or bar-shaped structural member (3) tightly into a location hole (2) in a construction element (1) and to a lead-in tube (3) to be inserted into the opening (2) of a lead-in wall bushing. A helical spring (4), preferably designed as a tension spring, is positioned on the outer circumference of the lead-in tube (3) or other structrual member and receives in it stretched state--in the air gaps between its turns--a filling compound (6) which, after insertion of the thusly prepared tube (3) or structural member, is grouted in the annular gap between the tube (3) or structural member and the opening (2) of the lead-in wall bushing by forcing together the turns of the helical spring (4), filling this annular gap tightly and without spaces.

Abstract: The method of providing an improved soldered electrical connection includes the step of providing a ring over an electrical wire and a terminal which are to be soldered together, and then compressing the ring to form a mechanical connection between the wire and the terminal prior to soldering. The mechanical connection holds the wire for a substantial length against the terminal and prevents movement during the soldering thereby insuring against a cold solder joint. Preferably, the ring is divided with the free ends preferably being offset to provide ease in sliding past each other. Preferably, a specially designed tool is utilized to compress the ring, the tool being provided with specially designed grooves in its jaws for holding the ring on end.

Abstract: According to the invention a multi-layered furnace wall construction for industrial use is provided. The wall construction comprises an outermost iron shell layer, an innermost refractory fiber block layer and an intermediate layer interposed between the iron shell layer and the refractory fiber block layer. The refractory fiber block layer is secured to the intermediate layer by means of stud bolts and washers of ceramic material. The fibers constituting said refractory fiber block layer are oriented such that they extend in the direction substantially perpendicular to the surface plane of the furnace wall.

Abstract: Described is an adhesively securable fastener comprising a body having an opening; an adhesive positioned within said body and registering with the opening of the chamber, a plunger means for applying pressure to said adhesive such as against an anvil means thereby adhesively securing the fastener to a substrate. Also described is a method for securing a substrate using the fastener described herein.

Abstract: An invisible connection for faced parts, in particular for furniture. The adhesive for the connection is hermetically enclosed in a sheath consisting of flexible or easily breakable material. The sheath of adhesive is introduced as an independent component into the borehole of the connection, the sheath being destructible on driving-in or pressing-in the connecting member.

Abstract: A thermoplastic fastener having a slight taper, is friction welded to a thermoplastic workpiece. A system for friction welding the fastener includes a way of automatically stopping rotation of the fastener while contact pressure between the fastener and the workpiece is maintained.