Abstract: A cylindrical lockset includes a latchbolt unit, a chassis assembly, a pair of spring cassettes and a pair of levers. The chassis assembly has a housing, a retractor disposed in the housing and connected operably to the latchbolt unit, and a pair of rollback sleeves extending from opposite sides of the housing. Each of the rollback sleeves includes a tubular body which is formed from a bent steel plate with adjoining longitudinal edges and which has a front end coupled operably with the retractor. Each of the spring cassettes is coupled operably to a respective one of the rollback sleeves. Each of the levers is mounted on a respective one of the rollback sleeves. The chassis assembly further includes a reinforcing ring sleeved on the front end of the tubular body of at least one of the rollback sleeves to force the adjoining longitudinal edges of the tubular body toward each other to prevent prying open of the rollback sleeve.

Abstract: A novel, self-sealing a headlamp adjustor mechanism is used to effect pivotal movement of a movable headlamp component in a headlamp arrangement. The headlamp adjustor mechanism includes a bushing having an initially unthreaded bore therethrough and an adjusting screw member having a shank. The shank of the adjusting screw member has a threaded portion and an unthreaded portion. When the adjusting screw member is rotated through the bore, female threads are cold-formed within the bore as the threaded portion contacts the bore and the cold-formed, female threads are deformed and collapsed against the unthreaded portion to seal the bushing against the unthreaded portion as the unthreaded portion contacts the cold-formed threads in the bore.

Abstract: A fastener assembly, such as a nail assembly, includes a row of fasteners held together and maintained in position by an extrudable thermoplastic adhesive composition containing a particulate filler, an extrudable thermoplastic resin reacted with a polar compound, and optional quantities of an additional thermoplastic resin. The adhesive composition provides the fastener assembly with increased rigidity, reduced bending and buckling, and reduced shearing requirements for separating an individual fastener from the row. The invention also includes an adhesive composition useful in the fastener assembly.

Abstract: A coupling device including a first member provided with external threads and a second member having an opening therein into which the first member is inserted. The second member is provided with a plurality of movably mounted internally threaded elements for receiving the external threads of the first member. A structure is provided whereby the first member may be inserted within the second member by rectilinear sliding movement, afterwhich the first member is rotated into tight engagement with the second member. Release of the first member is accomplished by rotating the first member very slightly in the opposite direction, afterwhich simple manual manipulation of the second member withdraws the threaded elements from engagement permitting the first member to be slidably removed from the second member.

Abstract: An adhesive insert anchor including an anchor body and a screw member for insertion into a drilled hole in a substrate containing an adhesive. The anchor body further including an integral friction segment and an adhesion segment. The friction segment includes an internally threaded cavity in which to receive the screw member and a knurled portion. The adhesion segment includes a cylindrical section and a plurality of saucer-shaped buttons positioned along its length ending with a terminal button. The buttons on the adhesion segment provide greater surface area for contact between the adhesive and the anchor. The friction segment has an external diameter substantially the same as the diameter of the hole drilled in the substrate, thereby providing a friction fit between the anchor body and the walls of the substrate hole.

Abstract: A door lock has a base securable to a door or door frame, and a locking arm pivotally connected to the base and movable when the base is secured to the door or the door frame to a blocking position where the door is prevented from opening and a retracted position where the locking arm is retracted from the door locking position. The locking arm is biased to the retracted position to facilitate closing the door when the base is secured to the door or to the door frame. A locking device is slidably mounted on the base for sliding movement to a locking position in a direction parallel to the plane of the door to engage the locking arm and hold the locking arm in the blocking position against the biasing when the door is closed, thereby locking the door. The door is unlocked by sliding movement of the locking device to an unlocking position in a direction opposite to the first mentioned direction to become disengaged from the locking arm, whereby the biasing returns the locking arm to the retracted position.

Abstract: A fastener member in the nature of a nut or bolt which bears against an external member which is softer than the fastener member including a body portion having first and second ends, a spin washer mounted on the first end of the body portion, internal and external surfaces on the spin washer, a first surface on the external surface for bearing the external member with a first frictional force, and a second surface on the internal surface of the spin washer for bearing against the first end of the fastener member with a second frictional force which is less than the first frictional force to thereby permit relative rotation between the first end of the fastener member and the internal surface of the spin washer while the spin washer remains in nonrotatable engagement with the external member.

Abstract: A fastener including a body, a shroud rotatably mounted on the body, and a resilient retaining ring located in opposed grooves between the shroud and the body, one end of the body extending outwardly beyond the shroud, and a frustoconical outer surface on the shroud which has its larger side proximate the end of the body which extends beyond the shroud.

Abstract: A fastening element such as a bolt, nail and the like to be driven into a receiving material, is formed of a high corrosion resistant steel. The fastening element has an axially extending leading region (1) to be driven into the receiving material and trailing region (2) with the two regions forming a single monolithic member. The diameter of the trailing region (2) is greater than that of the leading region (1) and has a hardness in the range of 35-43 Rockwell C hardness while the leading region has a hardness in the range of 46-55 Rockwell C hardness.

Abstract: A positioning device (20) which permits precise adjustment and retention of the longitudinal position of a screw member (30) within a threaded receptacle (22) in incremental detent steps includes the screw member (30) having at least one spring member (42) and the threaded receptacle (22) having a plurality of circumferentially spaced longitudinal grooves (28). As the screw member (30) is rotated within the threaded receptacle (22), the spring member (42) sequentially engages the spaced longitudinal grooves (28) in incremental detent steps. The engagement between the spring member (42) and a longitudinal groove (28) retains the screw member (30) in a desired detent position, thereby resisting unwanted rotation as from vibration or thermal cycling.

Abstract: A very simple and economic method for quickly repairing a puncture in a vehicle tire utilizes a screw having a concave slot beneath its head, with the circumference of the head portion cooperating with the slot to provide an edge which slightly cuts into the surface of the tire when the screw is inserted into the puncture. A sealing material such as an adhesive rubber is placed in the slot and seals the top of the puncture when the screw is threaded into the puncture hole. The design provides easy, quick, efficient and very low cost repairs for a puncture in a tire, not only for temporary repairs but for long term repairs. The design is simple and includes only two parts: a screw having a spiral thread by which the screw is affixed in the tire, and a concave slot under the screw head with the sealing material such as an adhesive or sticky rubber which is secured in the slot. The screw body is fixed in the tire hole and the head presses the sealing material into the hole.

Abstract: A sealing fastener, which expands by the insertion of preferably a screw. The fastener comprises a substantially flat and two expandable legs. The head has an upper side and a lower side, preferably separated by a gap. The fastener has further an elastic body molded at least on the lower surface of the head. A large unexpected improvement is achieved by having the elastic body also molded in the gap between the upper surface and the lower surface.

Abstract: I claim a self fusing fastener device with radially expansible wings that permanently lock into place through an adhesive means which causes the fastener to act as a single rigid attaching element that resists pull out as a result of the interference fit produced by the radially expansible folding and flaring elements.

Abstract: A fastener system includes a fastener and a driver tool in which the fastener includes a cavity for insertion of the driver tool and in which the driver tool and the fastener form an interlocking relationship between the driver tool and the fastener is formed by having a portion of the fastener overlie a portion of the driver tool. This interlocking relationship prevents accidental separation of the driver tool from the fastener and consequent marring of the surfaces of the work pieces being joined together and also prevents stripping of the driver tool and the fastener cavity.

Abstract: A fastener system capable of clamping a workpiece that provides for enhanced distribution of the internal forces that are generated in the components as a result of the assembly of the system. The fastener system includes an externally threaded member having a thread formed thereon with a substantially non-triangular profile, and an internally threaded member having a thread formed therein which also includes a substantially non-triangular profile. In assembled form, the substantially non-triangular thread faces of the internally and externally threaded members mate along a contact face and, by virtue of their unique thread forms, are able to withstand axial loads of greater magnitude than comparable systems employing threads having substantially triangular profiles.

Abstract: A vehicle door latch and handle mechanism including a cable-driven door latch wherein a sheath encasing a cable pushes on a trigger in the latch mechanism to actuate a latchbolt and cause it to disengage a striker. Tensioning of the cable causes the sheath thereabout to straighten and push upon the trigger for the latch.

Abstract: A gang channel nut assembly permits nut plates held therein to be used even though the assembly channel is in contact with a stringer. The instant invention enlarges the fastener hole in the channel as well as slots on both sides of the channel and cuts a connecting slot between the hole and the slot sufficient to permit passage of a fastening screw or bolt. In this way the gang channel nut assembly still functions as originally intended that is, to positively retain the nut plates and align them in the channel, but permit the nut plates to be flexible or float transverse of the channel without falling out of the channel.

Abstract: A screw stay, injection-molded from plastics, including a longitudinal series of equally spaced screw mounting holes for mounting a respective screw, pairs of side notches made along two opposite long sides thereof between each two adjacent screw mounting holes, a plurality of annular flanges extending downwards from a bottom side thereof around each screw mounting hole, a plurality of splits extending from the top side through the border of each screw mounting hole into a part of each annular flange, sets of radial ribs respectively raised from the top side of the screw strap around each screw mounting hole and sloping outwardly upwards from each split for guiding the head of each screw into each screw mounting hole respectively, and sets of radial webs arranged under and aligned with respective ribs.

Abstract: In a screw retention device for a screw (1) by means of which a first component (2a) and a second component (2b) are braced, a plain washer (5b) bears positively on the first component (2a) and is likewise braced by means of the head of the screw (1) on this first component (2a). A retaining washer (5a) is connected positively to the head of the screw (1), and the retaining washer (5a) is connected to the plain washer (5b) by means of a welding bead (4).

Abstract: An improved mounting structure includes a soft mounting sleeve having a locking hole at a central position for fitting into a through hole of a mount, and a screw fitted with a washer. In assembly, the screw is inserted into the mounting sleeve fitted into the mount before driven into a frame structure. When the screw is driven into the top side of the mount, the bottom side of the mounting sleeve will elevate with the turning of the screw to impose a pressure on the screw threads, thus preventing the screw from being driven further and achieving a good mounting effect. This arrangement also prevents the screw from driving unduly deep into the frame structure due to excessive torsional force to prevent any possible damage to the frame structure or the screw threads.