Abstract: An engagement system for a recessed luminaire can include an engagement component having an engagement component body, a first bracket engagement extension, and a second bracket engagement extension, where the first and second bracket engagement extensions are movable with respect to the engagement component body. The engagement system can also include a bracket configured to be detachably coupled to the engagement component, where the bracket includes a bracket body, a first additional component coupling feature, and a second additional component coupling feature, where the bracket body includes an engagement component receiving feature that is configured to engage the first and second bracket engagement extensions, and where the engagement component is able to couple to and decouple from the bracket when the first and second bracket engagement extensions are moved with respect to the engagement component body.

Abstract: A tie rod for spanning a duct interior to join duct walls bounding the duct interior, that can be simply and inexpensively fabricated from sheet metal or other suitable material, including automatically, securely fastenable quickly and easily to the duct walls, often by one person, and which can be configured to be nestable for efficient storage and shipping, of elongate construction for spanning a duct interior, with a transverse attachment flange or flanges that can be pre-bent or bent onsite at the installation location via special bending features to snug to a duct wall, and include holes for threadedly receiving fasteners, having a shape and size to reduce fastening torque, with a two attachment flange configuration that resiliently self retains the fastener against loosening from vibration and other forces.

Abstract: The decking anchors have a web anchor and a flange anchor that are operatively coupled together. In an assembly position, the web anchor and the flange anchor may be oriented in the same plane. After insertion into the cavity of the decking, the flange anchor may contact the upper flange of the decking, the web anchor may be rotated (e.g., after moving vertically upward while the flange anchor remains stationary), the web anchor may engage the webs of the decking (e.g., after moving vertically downward while the flange anchor remains stationary), and a stop may be operatively coupled to the web anchor and the flange anchor, in order to secure the web anchor and the flange anchor to each other while the web anchor contacts the webs and the flange anchor contacts the upper flange to form an anchor within the decking that has loading resistance in all directions.

Abstract: A coupling device includes male and female couplings having first and second circumferential grooves on surfaces of the respective couplings that face each other when the couplings are fitted together. The coupling device further includes an engaging member. When the male coupling is pushed into the female coupling, the engaging member is retracted into the second groove, allowing the male coupling to be inserted into the female coupling, and when the couplings are fitted together, the engaging member is pushed into the first groove by coil springs so as to be fitted into both of the groove, thereby preventing separation of the male and female couplings in the axial direction. Countersunk head screws support respective divided pieces of the engaging member. Slotted head setscrews are screwed in at boundaries between the adjacent divided pieces to press the divided pieces against the bottom of the first groove.

Abstract: A connecting device (10) is provided for connecting a first article (14) to an elongate second article (24). The connecting device (10) comprises a securing arrangement (25) for securing the device (10) to the elongate second article (24), and an attaching arrangement (26) for attaching the connecting device to the first article (14). The attaching arrangement (26) is receivable through an opening (22) in the first article (14). The attaching arrangement (26) comprises a locking arrangement (40) for locking the connecting device (10) to the first article (14). The locking arrangement (40) comprises a detent formation (42) configured to be received by an opening in the first article (14).

Abstract: A retainer comprises first and second legs extending away from a base wall. In one embodiment, the first leg includes a dimple array surrounding an aperture and projecting from an inboard surface of the first leg. In another embodiment, the first leg has a necked portion having a set of first shoulders extending away from a first base, and a first apertured portion extending away from the set of first shoulders. The second leg has a necked and stepped portion having a step extending away from a second base, and a shouldered portion extending away from the step and having a set of second shoulders extending laterally outwardly, and a second apertured portion extending away from the second shoulders. The retainer of either embodiment may be coupled to a nut to produce a retainer and nut assembly.

Abstract: A composition comprising from about 40 weight percent to about 99.9 weight percent of at least one C1-C5 hydrofluorocarbon, from about 0.1 weight percent to about 50 weight percent of CF3I, and from about 0.1 weight percent to about 10 weight percent of at least one C1-C6 hydrocarbon and the use of these composition for in methods of the recharging of refrigeration systems.

Abstract: A method of fabricating a semiconductor device is disclosed. The method may include forming an target layer on a substrate, forming a mask pattern on a target layer, performing a first process to etch the target layer and form a first sub-trench, and performing a second process to further etch the target layer and form a second sub-trench. First and second sidewall patterns may be formed on a sidewall of the mask pattern to be used as an etch mask in the first and second processes, respectively. Outer sidewalls of the first and second sidewall patterns may be formed to have different angles with respect to a top surface of the substrate.

Abstract: A fastener arrangement includes a threaded member having threads extending from a first end to a second end. The threads have a thread contour provided by a load and clearance flank surfaces joined to one another by a crest and root. For the external threaded member the crest provides a crest diameter, and a root provides a root diameter and is arranged between adjoining threads. At least one thread near the first end has a weakened thread contour that decreases rigidity of the one thread compared to other threads, enabling axial loads to be distributed more evenly between the threads.

Abstract: A nut rotation prevention structure is provided with a shaft member, a nut, and a rotation prevention member. A wheel hub is supported by the shaft member. The nut is engaged through threads with a first portion of the shaft member, the first portion protruding from the wheel hub. The rotation prevention member is mounted to a second portion of the shaft member and prevents the rotation of the nut, the second portion protruding from the nut. A key groove is formed in the second portion. The rotation prevention member has a tube-shaped section and a connection section. A portion of the shaft member, the portion having the key groove formed therein, is inserted in the tube-shaped section. The connection section connects the tube-shaped member to the nut. The tube-shaped section is affixed to the key groove by staking.

Abstract: A drive lever arrangement is provided. The drive lever arrangement includes a unison ring which has a groove; a drive lever having connection means for connecting the drive lever to the unison ring; a drive lever pin having a transversal throughbore hole; and a clip, wherein the drive lever pin connects the drive lever to the unison ring, and wherein the clip is inserted in the groove through the throughbore hole of the drive lever pin, and engages with the groove of the unison ring.

Abstract: A fastener useable with a system board is provided herein. The fastener includes a fastener body and a spool. The fastener body has a mating member at one end and a threaded member at an opposite end. The mating member extends from the fastener body and positions the fastener body on a chassis. The spool engages with the threaded member of the fastener body and is secured to the chassis.

Abstract: A gas turbine engine having two components attached together via a stud retention arrangement. The stud retention arrangement includes a stud having a shaft and an integral collar that is located between two engagement sections. A recess and a groove are defined in one of the components and an anti-rotation element; the collar defines a retention surface and is located within the collar recess, the anti-rotation element is located within the groove and engages the retention surface to prevent rotation of the stud during assembly of the components.

Abstract: A lockable anchor system is disclosed comprising a rotary arm anchor. Said rotary arm anchor comprises a stake and an arm. Said stake comprises a first end, a second end, a shaft and a helical portion. Said arm comprises an interior end, an exterior end, one or more horizontal connectors, and an aperture. Said stake and said arm connect by attaching said interior end to said second end of said stake. Said stake is capable penetrating and holding said rotary arm anchor to an anchoring surface. Said interior end and said exterior end of said arm connect with said one or more horizontal connectors. Said aperture comprises an enclosed opening proximate said exterior end of said arm. Said aperture is capable of receiving a lock capable of securing said exterior end to a substantially fixed object and thereby preventing said rotary motion at said interior end by holding said exterior end to said substantially fixed object.

Abstract: A captive float nut comprising a nut body having a threaded aperture defined there-through for receiving a threaded shaft. An anchor element is moveably coupled to the nut body to provide a predetermined freedom of movement of the nut body in six degrees of freedom. The anchor element comprises one or more finger elements having outwardly depending terminal portions have a sharp tine element on the terminal portion. The tines are driven in the interior surface of a bore so as to grip and affix the anchor element therein and affix the captive float nut to a structure.

Abstract: A locking mechanism inhibits rotational movement of a nut of a first cable connector that is threadingly engaged with a mating second cable connector. The nut has at least one recess in its outer surface along an edge and is rotatably mounted on a fixed housing of the first cable connector. The mechanism includes a component adapted to removably surround at least a portion of the housing and includes at least one first element matingly engageable with a corresponding second element positioned on the housing. A projection is rigidly mounted on the component. The projection is adapted to engage the at least one recess of the nut when the component is engaged with the outer surface of the housing.

Abstract: The present disclosure shows an anti-rotation bolt for fastening reactor plates to prevent subsequent SCC problems wherein the bolt head has a circumferential series of anti-rotation tabs extending from the head of the bolt which are moved in by a restrainer cone which is placed on top of the bolt to allow its insertion into the plates and is removed for locking the tabs into detents formed in one of the plates to provide anti-rotation. The cone is again moved over the tabs during the removal of same leaving the bolt undamaged and fit for reuse.

Abstract: An electronic device comprises a printed circuit board, a heat sink and a plurality of locking devices securing the heat sink to the printed circuit board. Each locking device comprises a shaft, a knob and an elastic member. The shaft has a plurality of outer teeth protruding outwardly from an outer surface of a top end thereof. The outer teeth are arranged along an axial direction of the shaft. The knob has an inner tooth meshing with the outer teeth of the shaft. The elastic member is compressed between a bottom of the knob and the heat sink. A length of the elastic changes when the inner tooth of the knob meshes with different outer teeth along the axial direction of the shaft to adjust a pressure of the locking device on the heat sink.

Abstract: A fastener with a threaded nut, a clip, a first engagement feature and a second engagement feature. The nut has front and rear surfaces and a first lock structure that is disposed between the front and rear surfaces. The clip has a body, which defines an aperture, a second lock structure and an engagement member. The second lock structure is coupled to the body and engages the first lock structure to axially retain the clip to the nut. The engagement member extends into the aperture in the body. The first engagement feature is coupled to either the nut or the clip and comprises at least one tooth. The second engagement feature is associated with the other one of the nut and the clip and is engaged with the first engagement feature to inhibit rotation between the nut and the clip.

Abstract: Disclosed is a fastening element (10) for a threaded bolt (14), particularly a stud bolt, comprising a plastic or metal block (10) that has a threaded bore (18) and can be screwed onto the bolt (14). Said fastening element (10) is characterized in that the threaded bore (18) is laterally open by means of an axial slot (20) such that the block (10) can also be laterally placed on the threaded bolt (14).

Abstract: A bore serration for locking externally serrated inserts (3) against rotation, with the external serration (4) comprising several teeth (5), and particularly for use with components made of hard, brittle materials, includes an arcuate serration (10) featuring arcuate recesses (7) produced by plunge or circumferential surface milling. Each of the recesses positively accommodates at least two teeth (5) of the outer serration (4) of the threaded insert (3). The arcuate serration can be produced with high dimensional accuracy without damaging the workpiece and with reduced wear of the tool, and ensures a long service-life of the threaded insert.

Abstract: A body comprising a nut retaining apparatus mounted thereon for fastening a bolt to the body. The bolt is inserted into a bolt insertion hole at an end surface of the body from a direction inclined with respect to a direction tangent to the body. The nut retaining apparatus comprises a nut retainer and a nut holder, the nut retainer positioned at an insertion end of the bolt insertion hole in the body and against which a nut member having a threaded hole abuts, and the nut holder mounted on the body for supporting the nut member in the inclined direction. The nut member is retained and supported in the inclined direction at a position between the nut retainer and nut holder and continuous with the bolt insertion hole.

Abstract: A spindle nut retainer is provided for preventing a nut threaded upon a spindle from unthreading and detaching from the spindle. The spindle nut retainer includes an integral base section and peripheral section maintaining a cup-shaped configuration. The base section includes an aperture through which the spindle may pass and the peripheral section includes a plurality of fingers which form windows therebetween used to form a locking connection between the spindle nut retainer and the nut.

Abstract: A spindle nut retainer is provided for preventing a nut threaded upon a spindle from unthreading and detaching from the spindle. The spindle nut retainer includes an integral base section and peripheral section maintaining a cup-shaped configuration. The base section includes an aperture through which the spindle may pass and the peripheral section includes a plurality of fingers which form windows therebetween used to form a locking connection between the spindle nut retainer and the nut.

Abstract: Devices are disclosed for locking rotatable fasteners in a construction element including a shaped surface which defines an axis of rotation for the rotatable fastener, and at least one protrusion extending into the shaped surface as a lock for the rotatable fastener, in which the protrusion can be processed with respect to the axis of rotation of the rotatable fastener to create an end surface on the protrusion which is a predetermined distance from the axis of rotation of the rotatable fastener irrespective of the location of the axis of rotation relative to the shaped surface. Methods for producing such devices are also disclosed.

Abstract: A compression clip of the present invention comprises a bolt and a self-tightening member having two side sections and a grooved intermediate section therebetween. The intermediate section has a hole for receiving the bolt. Preferably, the intermediate section has grooves on both an interior and exterior surface thereof. After tightening of the clip, the intermediate section flattens to become somewhat planar and the side sections are compressed inward to securely engage a guide rail or wear strip within the clip.

Abstract: A bolt and keeper assembly including a crimper for crimping a portion of the keeper into pockets formed in an upper portion of the bolt head are described. The crimper includes a hydraulic cylinder for carrying hydraulic fluid under pressure and a crimper body having a bore extending therethrough. The bore has first and second end portions and an intermediate portion extending between the first and second end portions. The first end portion of the crimper body bore is configured to receive an end portion of the hydraulic cylinder, and the second portion of the crimper body bore is configured to receive at a least a portion of the bolt head and keeper assembly. When assembled, an upper portion of the bolt head and keeper assembly extends into the intermediate bore portion. A compressible ring is positioned in the intermediate portion of the crimper body bore at a location to engage the keeper and for crimping sections of the keeper into the bolt head pockets.

Abstract: A bolt-tightened type coupling includes a pair of semi-circular arc-shaped coupling halves having base ends which are pivotably connected to one another, so that the coupling halves can be moved toward each other to a closed position and moved away from each other to an open position. The coupling halves have opposite, free ends providing with flanges, respectively, having bolt inserting holes, respectively. One of the bolt inserting holes has such a shape that a bolt fits tightly with the inner edges of the bolt inserting hole, so that the bolt can be held by the bolt inserting hole.

Abstract: An adjustment mechanism for a clutch is partially recessed within a clutch cover. The disclosed adjustment mechanism includes a support bracket, a rotation assembly, and a locking plate. The support bracket includes a web and a pair of side walls defining a U-shaped channel. Each side wall includes a flange on one end of the side wall opposite the web. Each flange extends away from the channel generally parallel to the web of the support bracket. The rotational assembly is secured to the support bracket and includes a gear that cooperates with an adjusting ring of the clutch. A head of the rotation assembly is entirely received within the channel of the support bracket; thus, no portion of the rotation assembly extends from the channel beyond the flanges of the support bracket. Further, a locking plate is secured to the support bracket to selectively prevent rotation of the rotation assembly. Moreover, no portion of the locking plate extends from the channel of the support bracket beyond the flanges.

Abstract: A variable stator vane includes an airfoil with an integral outer trunnion having a seat extending integrally therefrom. A threaded stem extends from the seat and includes a coextensive alignment surface that cooperates with a complementary mounting hole in a lever arm which restrains rotation of the lever arm about the stem during assembly for ensuring a predetermined rotational orientation between the lever arm and the airfoil.

Abstract: A drywall frame compression anchor assembly for use with a sectional metal frame to be mounted in an opening of a wall comprises a restraining bracket having a pair of space support legs and a jamb anchor. The jamb anchor includes a hat section havng a generally U-shaped center portion and a pair of opositely extending wings projecting therefrom. The jamb anchor is moveably mounted between the supports of the spaced support legs to engage the surface of the opening.

Abstract: A fitting, for fastening with interengaged inner and outer threaded members to a channel-shaped framing member, comprises a tab projecting into the channel to abut the inner threaded member to assure properly rotated assembly of that threaded member and to prevent improper rotation if the threaded members are loosened.

Abstract: A bumper bar comprised of joined together stampings defining a closed box section has a cage attached inside the bumper bar and overlying an elongated opening in the bumper bar. The elongated opening has a major dimension which extends in the direction of desired adjusting movement of the bumper bar relative to the structural member upon which bumper bar is to be mounted. A bolt has a bolt head at least sufficiently smaller than the elongated opening to permit axial insertion of the bolt head through the elongated opening. The bolt head has a major dimension greater than the minor dimension of the elongated opening so that a quarter-turn rotation of the bolt subsequent to insertion through the elongated opening will align the major dimension of the head for engagement with the bumper bar to prevent removal of the bolt from the elongated opening.

Abstract: An assembly means for the standardized mechanical joint when used on pipeline appurtenances such as gate valves, fittings, etc., wherein the design or dimensions of said appurtenances prevent the insertion of the standardized T-bolt in one or more bolt holes. An improved fastener is inserted and tightened from the gland side facilitating the rapid assembly of said joint. Said improved fastener eliminates the need for slots on gate valves, fittings and the like, and prevents failure of the cast-iron valve body during compression of the gasket.

Abstract: A device for fixing a shaft journalled in a roller bearing, in an axial direction of the shaft, comprising a resilient element which presses the bearing against a supporting surface of a bearing housing and provides a measure of radial adjustment of the shaft in the housing. The fixing device also includes a screw-threaded member, which in its screwed-in position limits axial movement of the roller bearing.

Abstract: A channel nut for space framing systems characterized by having a pair of outwardly and downwardly extending arms which form a channel, a machine nut which is securely fastened thereto, and a resilient spring projecting upwardly from the machine nut. Such channel nuts are used to thread bolts into space framing members to secure lighting fixtures and the like into ceilings particularly for commercial utilization in plants and other buildings. The channel framing may be extended horizontally or vertically, and the channel nut must have some ability to withstand lateral thrusts so that it grips firmly into slots of the channel framing.The channel nuts of this invention include ordinary machine nuts of the square, hexagonal or elongated rectangular type, which are projection welded to the saddle to strengthen it.

Abstract: A built-in connector element is constructed for being anchored in sandwich ype compound panels. For this purpose the connector element has a central threading for cooperation with further connector components and a body with corners forming anchoring fins for holding the connector element in the compound panel. The cornered body is arranged substantially concentrically relative to said threading and has a rounded flange merging into the anchoring fins. The anchoring fins are so dimensioned that the circle enclosing the outer corners of the fins has a diameter which is equal or larger than the diameter of the flange. In one embodiment the central threading is provided directly in the cornered body. In the other embodiment a threaded member is laterally displaceable in the hollow cornered body, whereby the initial insertion of a screw is made easier.

Abstract: A screw anchoring device and method for preassembled aperture sealing attachment with an apertured panel to confine insulating material foamed in place between the panel and a spaced wall. The screw anchoring device includes a flat portion having a central helical screw receiving impression with a retained knock-out central area capable of being displaced by a screw. The device is secured to the apertured panel with a screw receiving impression overlying the panel aperture. The screw anchor device has one or more wing portions formed integrally with the flat portion, said wing portions diverging from the plane of the flat portion in a direction away from the screw receiving impression and adapted to be imbedded in the foamed insulating material.

Abstract: A shock and vibration-proof fastener of general application and particularly suitable to hold dual wheels demountably assembled to a cargo vehicle hub. The fastener is designed to isolate the threads thereof from radial and torsion stresses utilizing a split collet encircling the shank of the fastener with its periphery converging toward the collet ends at angles of the order of 4 to 1 relative to the collet axis and having a nesting interference fit with a similarly tapered bore through the parts or wheels to be clamped together. The fastener shank has a threaded well in one end mateable with a cap screw having a self-aligning conical surface on the underside of its head engaging the rim edge of a loose fitting washer. The self-aligning surfaces are preferably provided with a ring of teeth and notches interengaging along helical surfaces having a pitch substantially greater than that of the fastener threads.

Abstract: A fastener for securing parts to metal framing such as channel framing having side flanges with inwardly, hook-shaped lips defining a slot therebetween. The fastener comprises an elongate body or nut having inside and outside faces, opposite sides and opposite ends, a width less than that of the slot and a length greater than that of the slot. The fastener also includes a clamp member secured to the nut for clamping the nut on the channel. The clamp member has a crosshead which is spaced outwardly from the outside face of the nut and which is longer than the width of the slot.