Abstract: A quick disassembly tool for fixedly mounting a connection module is provided according to the present application, including a pressing block and a fixing block for press-fitting the connection module. A press-fitting end face of the fixing block is provided with a press-fitting hole, and a press-fitting post inserted into the press-fitting hole protrudes from the pressing block; the quick disassembly tool further includes a locking device respectively pressing on an end of the pressing block and an end of the fixing block, and the locking device includes an elastic pressing device configured to adjust a press-fitting space between the pressing block and the fixing block. The pressing block and the fixing block are connected and transversely position-limited through the press-fitting hole and the press-fitting post, the locking of the pressing block and the fixing block in a pressing direction is achieved by a locking device.

Abstract: A floor panel connection system for attaching a floor panel to an airframe is disclosed. The connection system includes an offset flange insert comprising a base portion, a flange portion, and an interconnect portion. The base portion of the insert is configured to be received in a hole in an edge region of the floor panel and includes an opening that is sized to receive a fastener. The interconnect portion extends laterally from the base portion such that when the edge portion of the floor panel is overlapping a lateral edge portion of the airframe, the flange portion of the insert is beyond the lateral edge portion. The flange portion is also configured to be bonded to a bottom surface of the floor panel beyond the lateral edge portion of the airframe.

Abstract: A fastener assembly (400), having: a grommet (402) for extending through an aperture (412) of a first element (408), the grommet including a perimetric wall (416) defining an opening through the grommet; a stud (404) including a head (422) at one end and a cross pin (424) adjacent to an opposite end, the stud being received in the opening of the grommet; a cup member (426) interposed between the stud and the grommet, the cup member being moveable relative to the stud and movable relative to the grommet; and a locking element (444, 448, 802) that is moveable relative to the grommet. In a secured configuration (438) the stud is relatively lowered with respect to the grommet and the locking element is disengaged from the grommet. In a holdout configuration (600) the stud is relatively raised with respect to the grommet and the locking element is engaged to the grommet.

Abstract: A control box cover assembly is provided that includes a plurality of side panels, a front panel selectively coupled to the plurality of side panels, and a latch coupled to a side panel and extending outwards therefrom, with the latch having an opening formed therein having a first direction longer than a second direction. The control box cover assembly also includes a fastener positioned within the opening, with the fastener further including a shaft having a first end and a second end, a head coupled to the first end, and a protrusion extending radially outwards from the shaft proximal the second end. The protrusion is configured to hold the fastener within the opening when the protrusion is aligned with the second direction and release the fastener from the opening when the protrusion is aligned with the first direction.

Abstract: A device for removably attaching a battery of a motor vehicle, including an upper portion including a mechanism for attaching onto a motor vehicle, and a lower portion including a mechanism for connecting to the battery, and including a latch linked with a rotational axis and linked to a piston on which a resilient mechanism acts, so as to enable the two upper and lower portions to be locked together and unlocked from each other by a translation and rotation of the latch.

Abstract: A system for mounting an electronic handheld device includes a case having a mounting structure and a locking structure attached to the case by aligning a portion of the locking structure with a portion of the mounting structure and rotating the locking structure or the case.

Abstract: A fastener apparatus is disclosed that features projecting locking members that extend and retract when a central drive shaft is rotated. The exterior of the connector has a body that is partially threaded to receive a nut so that two structures (e.g. flanges, panels, plates, beams, etc.) can be pulled together by tightening the bolt when the locking members are in the extended position. In one embodiment, the shaft can be an eyebolt.

Abstract: Decompression seal (1) for connecting components (3, 4, 5) having openings (2) which opens on excessive pressure. It consists of a retaining-bolt-like arrangement (6) with a bolt head (7) and a locking head (8) with recesses (8-1, 8-2) into which, in the retaining position, the ends of leaf-spring arms (9-3, 9-2) engage. These recesses (8-1, 8-2) and the leaf-spring arms are formed in such a way that when a certain pressure accumulates on the side of the upper component (5) the retaining position is released and the retaining-bolt-like arrangement (6) is pushed axially (17) in direction (R) towards the bolt head (7). Through the threaded connection of the shafts (11, 12) this decompression seal (1) allows the components (3, 4, 5) to be drawn together by turning the bolt head (7). A rotation lock (15, 16) prevents the connection from working loose.

Abstract: A fastener comprises an adjustable insert that disposed in a receptacle having a first end facing a grommet and the insert is connected to the receptacle for movement relative to the receptacle. The insert has a central opening and diametrically opposed cam and locking surfaces open to said central opening. A bore in the insert is radially disposed relative to a longitudinal axis of the insert. An engagement member disposed within the bore is moveable therein laterally relative to the longitudinal axis of the insert toward and against the receptacle to fix the insert against movement relative to the receptacle. The engagement member is moveable laterally relative to and toward the central opening of the insert to allow movement of the insert relative to the receptacle.

Abstract: A lock system having a bolt wherein a plurality of locking tabs are along a length of the bolt spaced a distance apart, a first track is along a portion of the length of the bolt, an inner nut having an inner channel, wherein threading is on an outer surface of the inner nut and a first mating tab is in the inner channel, the first mating tab slides along the first track as the inner nut slides over the bolt and the first mating tab can slide between a pair of locking tabs on the bolt when the inner nut is rotated in a first or second direction to secure the inner nut in a position along the length of the bolt, and an outer nut having an inner channel with threading and is adapted to removably thread onto the inner nut.

Abstract: A heat exchanger with a plurality of heat transfer plates between a frame and a movable plate employs hydraulic rams connected above and below the heat transfer plates to move the movable plate toward or away from the frame in a releasable clamping action against the heat transfer plates. A positive lock maintains the movable plate in its operational position. Supports above and below the heat transfer plates support and guide the movable plate and heat transfer plates. Thus, the heat transfer plates are removable from between the stationary and follower plates for replacement and maintenance when the movable plate is moved away from the frame without further reconfiguration or dismantling of the plate heat exchanger.

Abstract: A self-contained fastener is provided for attaching to a structure having opposing edges that flank a cavity across a gap. The fastener includes a grip member, a clamp member and a latch member. The grip member has a knob and an inner annulus disposed thereon along an axis of symmetry. The knob has a central through-hole coaxial with the inner annulus. The inner annulus has an arc tab that radially protrudes therefrom. The clamp member includes a boss and an outer annulus disposed thereon. The boss has first and second dimensions perpendicular to the axis, the first dimension being shorter than the gap. The clamp member is flanked by opposing ledges along the second dimension. Each ledge is arranged to engage a respective edge of the structure. The inner annulus is coaxially insertable into the outer annulus. The latch member includes a stud and a flange. The stud is insertable at a proximal end into the inner annulus and the through-hole.

Abstract: A rapid-engaging, positive locking machine screw mechanism comprises a screw having a head and a body wherein the body includes male threads formed thereon wherein the threaded body has at least one longitudinal segment devoid of threads. A work piece defines a hole having female threads formed therein for receiving the screw and further defines in a portion of the hole, at least one longitudinally extending segment devoid of female threads. The longitudinal screw segment devoid of male threads and the longitudinal hole segment devoid of female threads are arranged such that the screw body is longitudinally received in the hole without engagement of the male screw threads with the female work piece threads. The rapid-engaging, positive locking thread configuration can be applied to a variety of mechanical interfaces. Additionally, thread locking configurations, such as a boos-depression interface, a notch and ridge, etc. can be incorporated to secure the male and female threads.

Abstract: A quick-positioning captive screw includes a mounting base member having an outer thread spirally extending around the peripheral wall of a top flange thereof, the outer thread having a leading end terminating in the top edge of the top flange and a tail end terminating in the bottom edge of the top flange and cutting a part of the top flange into a rib, a lock screw having an inner thread located on the inside wall of a plastic cap thereof for threading through the outer thread into the space around the periphery of the mounting base member below the bottom edge of the top flange after bonding of the mounting base member to an external panel frame by reflow soldering, and a spring member sleeved onto the threaded shank of the screw bolt of the lock screw and stopped between the head of the screw bolt and the inside step of the mounting base member.

Abstract: A fastener assembly for attaching a fastener to an opening of a sheet material is disclosed. The sheet material is typically located adjacent to a base structure and the fastener assembly affords radial movement of the fastener relative to the opening of the sheet material. The radial movement allows the fastener to be aligned with a desired location on the base structure, e.g. a threaded aperture—after being attached to the sheet material. In this manner, the fastener assembly provides for the placement of the fastener in difficult to reach and/or see locations until it can be attached to the base structure.

Abstract: A positive locking machine screw mechanism comprises a screw having a head and a body wherein the body includes male threads formed thereon wherein the threaded body has at least one longitudinal segment devoid of threads. A work piece defines a hole having female threads formed therein for receiving the screw and further defines in a portion of the hole, at least one longitudinally extending segment devoid of female threads. The longitudinal screw segment devoid of male threads and the longitudinal hole segment devoid of female threads are arranged such that the screw body is longitudinally received in the hole without engagement of the male screw threads with the female work piece threads.

Abstract: A ceiling mount includes a base adapted to engage with one side of the ceiling, a core extending through the base to securely connect to the base and having a cylindrical body provided with at least one indentation, at least one arm selectively extending out of and movably received in the at least one indentation of the cylindrical body for engagement with the other side of the ceiling so as to provide a supporting force, at least one threaded bolt rotatably mounted in the cylindrical body and operably connected to the at least one arm to allow the at least one arm to extend out of and move relative to the cylindrical body in response to the rotational movement of the at least one threaded bolt and a stop to avoid the at least one arm from further extending.

Abstract: An eccentric fastening device is provided. The eccentric fastening device includes a first threaded fastener, a base and a rotary lug providing a non-fastened pre-assembled position. The base includes a top, a bottom, a stem and a hole, where the stem axially extends from the bottom of the base, and the hole axially extends from the top through the stem of the base. The rotary lug is releasably retained in the hole of the base by the first threaded fastener. The rotary lug includes a cylindrical portion having a thread and a head, wherein the head is offset from the cylindrical portion. The cylindrical portion is substantially axially concentric with the hole of the base, allowing the head to be eccentrically rotated on or off of the stem, whereby a selective structure may be variably clamped and releasably retained between said head and said base. An aircraft having an eccentric fastening device is also provided. A method of installing the same is also provided.

Abstract: An eccentric fastening device is provided. The eccentric fastening device includes a first threaded fastener, a base and a rotary lug providing a non-fastened pre-assembled position. The base includes a top, a bottom, a stem and a hole, where the stem axially extends from the bottom of the base, and the hole axially extends from the top through the stem of the base. The rotary lug is releasably retained in the hole of the base by the first threaded fastener. The rotary lug includes a cylindrical portion having a thread and a head, wherein the head is offset from the cylindrical portion. The cylindrical portion is substantially axially concentric with the hole of the base, allowing the head to be eccentrically rotated on or off of the stem, whereby a selective structure may be variably clamped and releasably retained between said head and said base. An aircraft having an eccentric fastening device is also provided. A method of installing the same is also provided.

Abstract: A channel connector comprises a main portion having a connecting portion, a clamping element having at least two opposite ends, and a threaded element threadably connecting the main portion to the clamping element. Each of the two opposite ends are spaced to interfere with walls of an interior portion of a channel during rotation of the clamping element in the interior portion of the channel.

Abstract: A bolt and nut structure has a bolt nail, a nut nail and an elastic tube. The elastic tube has several outward plates, several convex blocks, a convex edge, and an elastic gap. The edge of the elastic tube has a ring hook. Inward plates on an inner side of the elastic tube will slide along a planar surface of the bolt nail but will engage an oval surface of the bold nail. Accordingly, the elastic tube is first placed in an interior space of the nut nail, an objected is then clamped between the bolt and nut nail, and the bolt nail is rotated 90 degree to fasten the object. The bolt nail can also be rotated 90 degree in an opposite direction to loosen the bolt nail. Therefore the bolt and nut structure are very convenient in use.

Abstract: An attachment device to a panel hole includes a female part fitted into the panel hole, and having a pass-through part on a side thereof, and a male part having a leg part inserted into the female part. The leg part has an elastic coupling claw projecting outward from the pass-through part to be coupled in the panel hole, and a turn lock part. A guide member is formed in the female part for guiding rotation of the male part. The male part is assembled with the female part to be capable of rotation from a coupled position to an uncoupled position. A turn lock receiving part is formed in the female part and has a lock receiving surface for impeding rotation of the male part toward the uncoupled position.

Abstract: A fastener apparatus is disclosed that features projecting locking members that extend and retract when a central drive shaft is rotated. The exterior of the connector has a body that is partially threaded to receive a nut so that two structures (eg. flanges, panels, plates, beams, etc.) can be pulled together by tightening the bolt when the locking members are in the extended position. In one embodiment, the shaft can be an eyebolt.

Abstract: A fastener, such as a housing, for mounting to a structure, such as a panel, that has an aperture formed therethrough. The fastener includes a shank member and an annular nut member that is configured to align coaxially with the shank member. The shank member is inserted through aperture in the structure and the nut member is placed on the shank member. Teeth on the radially outwardly facing surface of the shank member engage a pawl, such as one or more teeth, on the radially inwardly facing surface of the nut member to lock the nut member to the shank member. Removal of the nut member is effected by rotating the nut member to disengage the pawl from the teeth, thereby permitting longitudinal displacement of the nut member off of the shank member.

Abstract: A toggle bolt type connector has projecting locking members that extend and retract when a central drive shaft is rotated. The exterior of the connector has a body that is partially threaded to receive a nut so that two structures (eg. flanges, panels, plates, beams, etc.) can be pulled together by tightening the bolt when the locking members are in the extended position.

Abstract: A fastening system (1) comprises a rear grip part (5) for introduction into a mounting opening (4) of an elongated mounting rail (2) in a first position and for gripping behind the mounting projections (6.1, 6.2) in a second position and a stop (3) for frontal external loading of the mounting rail (2). The stop (3) is connected to the rear grip part (5) by means of a threaded bolt (9). In addition, on the fastening system (1) a system is provided for providing a relative rotary movement between the stop (3) and the rear grip part (5) about the axis of the bolt (9). The system is configured as a transmission system for transforming a translatory movement of the bolt (9) relative to the stop (3) into a rotary movement of the rear grip part (5) relative to the stop (3).

Abstract: A board holddown (1) for holding circuit boards (8,9) includes an elastomeric support member (10) and a bullet-shape member (20) of more rigid material than the support member. The support member includes a first mounting portion (11) for supporting a first circuit board (8), a second mounting portion (12) for supporting a second circuit board (9), and an elongate, thin neck (13) projecting from the second mounting portion. The bullet-shape member is attached to the elongate, thin neck and includes a latch (21). The elongate, thin neck has substantial resilience so that the second circuit board can be easily detached from the board holddown by pushing the bullet-shape member away from its holding position.

Abstract: A fastening device is disclosed, which has a slotted shaft, a toggling mechanism, which deploys from within the slotted shaft, and which is adapted to couple the slotted shaft to a supporting structure, a detent mechanism disposed about the slotted shaft to deter its rotation, and a tightening mechanism adapted to couple to the shaft. The tightening mechanism binds the fastening device securely in place.

Abstract: Attachment device for a component to be attached to a plate, which is three-dimensionally adjustable with respect to the plate. The attachment includes a sleeve which is inserted into an opening of the plate and locked with respect to the plate by means of rotation. A tubular piece with a through hole is screwed into the sleeve into which a screw is inserted with substantial positive allowance for radial adjustability. This screw rests with its head at one end of the tubular piece and supports with its threaded part the component which abuts to the other end of tubular piece which, for axial adjustment, is optionally far screwed in.

Abstract: The present invention is a fastener assembly, and a system including two panels secured together by the fastener. The panels may form part of a container with two portions secured together by the fastener, such as a door and a panel to which the door is hingedly connected. The container may have walls that are formed of a composite material with a metal edge channel. The fastener is suitable for joining panels that are relatively thick, such as those formed of a composite material. The fastener includes a screw rotatable in a body to move a crossbar into engagement with one portion of the container to clamp that portion to another portion of the container. The fastener is tamper resistant and operable completely from the exterior, without need to access the inside end of the fastener.

Abstract: A quick connect fastener wherein the receptacle is adjustable to allow different stud types to be used and wherein absolute clamp-up is provided through repeated cycling. A spring loaded lock plate that captivates the quarter turn cross-pin in the locked position against the adjacent cam surface is provided. The lock plate is positioned within the receptacle and indicates the correct locked position at absolute clamp-up when the lock plate snaps over the cross-pin. Two ramps on the lockplate provide a positive “feel” when installing or removing the stud and provide the detent/lock feature. The cam comprises two helixed ramps leading to flat surfaces or plateaus for the cross-pin to ride up and tighten against. The plateaus are adjacent to detent recesses on the lock plate which provide the locking capability.

Abstract: A holder for connection to a first unit has a locking device designed for insertion, in a first position, into a receiving part in the first unit and, in a second position, for locking the holder to the first unit, is described. The holder's locking device has a threaded locking shaft arranged for axial movement in the holder, a handle with a threaded hole for admitting the locking shaft and a locking element rigidly connected to the locking shaft. The holder also has at least one beveled shoulder against which the locking element is axially movable, the handle axially pulling the locking shaft, as well as the locking element, against the beveled shoulder when rotated for locking, thereby inducing simultaneous rotation of the locking element to lock the holder to the receiving part.

Abstract: The present invention is a fastener assembly, and a system including two panels secured together by the fastener. The panels may form part of a container with two portions secured together by the fastener, such as a door and a panel to which the door is hingedly connected. The container may have walls that are formed of a composite material with a metal edge channel. The fastener is suitable for joining panels that are relatively thick, such as those formed of a composite material. The fastener includes a screw rotatable in a body to move a crossbar into engagement with one portion of the container to clamp that portion to another portion of the container. The fastener is tamper resistant and operable completely from the exterior, without need to access the inside end of the fastener.

Abstract: To permit operators to change dies quickly and easily and to remove shot shells from any station, inspect them and replace them, bayonet snap in dies may be easily inserted into a tooling section of a reloader and shot shells can be removed from shell plates by pivoting the retainer free.

Abstract: A stackable, recessed, locking, insulated thumbscrew for connecting modules together in a stack such that removal of one module from the stack does not loosen other modules in the stack has an insulated knurled cap that fits over the end of a main screw body. The main screw body has an interior threaded end and an exterior threaded end, with the knurled cap slidable over the interior threaded end by means of a bayonet pin on the main screw body and corresponding bayonet slot in the knurled cap. A cap spring is captured between a retainer flange integral with or retainer ring mounted on the interior threaded end adjacent the exterior threaded end and the knurled cap to apply pressure to the knurled cap. In a raised position the knurled cap may be readily grasped for manual screwing and unscrewing of the thumbscrew to add or remove a module from the stack.

Abstract: The invention relates to a fixing device for quickly fastening and releasing a mechanical part that bears on a support base, the device comprising a latching mechanism of the bayonet type and an associated clamping mechanism of the screw-and-nut type that is organized coaxially therewith, the mechanisms being actuated one after the other by actuating a common rotary drive member in the same direction, and the device having a temporary coupling means interposed between that member and the mechanisms so that over a first angle of rotation of the drive member said drive member actuates the latching mechanism, and then over a second angle of rotation, said drive member is uncoupled from the latching mechanism and actuates the clamping mechanism.

Abstract: A fastener apparatus having a bolt member with a fast lead threaded portion, a barrel member with a fine lead threaded portion, a collar member interposed between the bolt and the barrel and including both fast lead and fine lead threads to mesh with the respective threads on the bolt and the barrel, and an actuator for coupling two of the three members together so that in one instance the fastener is drawn rapidly on fast lead threads through a significant distance and in the second instance the fastener is drawn together on fine lead threads providing additional mechanical advantage.

Abstract: A quick-release fastener system for attaching a first structural body to a second structural body. The quick-release fastener system includes a stud assembly that is engaged with the first structural body and a receptacle assembly that is engaged with the second structural body. The stud assembly includes a stud and a nut body engaged with the stud. The receptacle assembly includes a retaining clip, and a biasing member and receptacle which are engaged with the retaining clip. The stud includes a receptacle-engaging portion which engages the receptacle, and the nut body is engaged with the stud such that rotation of the nut body effects rotation of the receptacle-engaging portion of the stud in the receptacle. The biasing member contacts the stud and biasing the receptacle-engaging portion of the stud into engagement with the receptacle. The engagement between the receptacle-engagement portion of the stud and the receptacle effects attachment of the first structural body to the second structural body.

Abstract: A fastener for securing a first component to a second component in a device is disclosed. The fastener includes an elongated body and a head. The elongated body has a portion thereof having a cross section perpendicular to a longitudinal axis of the body. The portion of the body has an arcuate connecting surface on an external periphery thereof. The body cooperates with the first component to permit the portion of the body to freely pass through a first component opening in the first component. The body cooperates with the second component to permit the portion of the body to freely pass through a second component opening in the second component when the body is oriented in a first position with respect to the second component opening. The body cooperates with the second component to permit the arcuate connecting surface to engage with the second component when the body is oriented in a second position with respect to the second component opening. The head is attached to one end of the elongated body.

Abstract: A fastener for holding panels together includes a grommet for engaging a first panel, a stud received in the grommet, and a receptacle for securement to a second panel, wherein the receptacle includes a body having an internally threaded bore, an externally threaded barrel member in engagement with the threads of the bore, curved slots in the barrel member for receiving a cross pin of the stud, and a mechanical arrangement for selectively locking the barrel member from movement relative to the body. The grommet can include diametrically opposed slots having open ends extending through an end of the grommet for receiving the cross pin of the stud. The mechanical arrangement can comprise slots on the barrel member and the receptacle body which are registrable with one another and a locking clip secured to the receptacle body, the locking clip comprising an annular portion biasing a fixing member into the registered slots.

Abstract: Functional component usable for demonstration and/or training purposes which can be releasably secured to the mounting face of a support base (1). It is provided with a clamping device (8) which is brought into engagement with a mounting recess (3) of support base (1), which is activated by rotating an actuating element (12). A downwardly extending clamping head (18) is mounted on the actuating element which is insertable into the mounting recess (3) and which can be positioned by rotating in such a manner that it engages behind two retaining protrusions in the mounting recess (3). By a further rotation of the actuating element, the functional element is clamped against the surface of the support base (1).

Abstract: Two secateur jaws are jointed together by means of a pin with radial lugs engaging a ring attached to one jaw and extending through a sleeve slidably arranged in the two jaws. Said sleeve encloses a helical return spring between the sleeve and the head of the pin. The head of the sleeve has an external screw thread with a ring screwed thereon for adjusting the tension of the spring. The sleeve may be moved axially by screwing said ring on or off to change the tension of the spring and thus the force exerted by the latter on said jaws, whereby the engagement pressure therebetween also changes.

Abstract: The present invention discloses an inner module container provided for containing active circuit elements for processing and transmitting cable television signals receivable from and transmissible through pins of coaxial cables. The inner module container includes direct access openings for receiving coaxial cable pins for securely connecting to the active circuit elements whereby the pins of the coaxial cables are connected to the active circuit elements without requiring a separate connector outside of the inner module container. In a preferred embodiment, the active circuit elements further include mechanisms for locking coaxial cable pins for directly and securely locking to the coaxial cable pins.

Abstract: A fastener for holding panels together includes a grommet for engaging a first panel, a stud received in the grommet, and a receptacle for securement to a second panel, wherein the receptacle includes a body having an internally threaded bore, an externally threaded barrel member in engagement with the threads of the bore, curved slots in the barrel member for receiving a cross pin of the stud, and a mechanical arrangement for selectively locking the barrel member from movement relative to the body. The grommet may include diametrically opposed slots having open ends extending through an end of the grommet for receiving the cross pin of the stud.

Abstract: A quick-attachment fastener has an elongate barrel and a plunger translatable in forward and aft directions in the barrel. A pivot pin in the barrel extends through the plunger and has an axis fixed relative to the barrel. An arm on the pin swings between a retracted position in the barrel and a deployed position where the arm extends from the barrel. An aft facing part of the plunger engages the arm so that a spring biasing the plunger urges the arm toward the deployed position. A forward facing part of the plunger opposes the arm so that aft plunger translation swings the arm to the retracted position.

Abstract: A fastener assembly for attaching a cover to a panel includes a stud assembly mounted on the cover and having a stud extending through an opening formed in the cover. The stud has a shank portion which extends through the opening in the cover, a head portion provided on an upper end of the shank portion, and a cross pin provided on a lower end of the shank portion. A grommet is secured to the cover within the opening of the cover for attaching the stud to the cover. The fastener assembly further includes a receptacle assembly including a receptacle barrel having a cylindrical wall with an interior surface having female threads formed thereon. The receptacle assembly further includes an insert having a cylindrical body with an exterior surface having male threads formed thereon. A helix is disposed between the receptacle barrel and the insert, the helix being fabricated from wire-like material and having alternating large and small diameter loops extending along the length of the helix.

Abstract: A detachable panel or grill for covering an opening in panelling of a wall or ceiling or in an appliance. The panel can be installed quickly and rigidly without the need for any special framing. The panel or grill can be installed or removed by the rotation of a single screw which passes through a threaded opening in an elongate fastening arm. The arm extends generally parallel to an inner surface of the panel during use thereof. The arm is pivotable relative to the panel between a first position usable for insertion of the arm into the opening and a second position used for clamping the panel to edge structure defining the opening. A slideway is connected to an inner surface of the panel and limits the extent of pivotal movement of the arm. The screw extends through a hole in the panel and connects the arm to the panel. A spring biases the arm so that it pivots towards the second position.

Abstract: A combination of a plastic part and metal part functions as a fastener to attach a panel to the flange of a portion of a chassis for electronic equipment or the like. The panel is formed with a counterbored hole and has an arcuate groove outside the counterbore on the outside of the panel and angularly spaced dimples on the underside. The fastener is a peripherally flanged hollow cylindrical member fitting into the hole and counterbore. It has a partially closed bottom and opposed openings in the cylindrical walls. A detent slants upward-outward from the bottom through one of the openings. A metal clip attaches to the cap, having an inverted U-shape having a web and two depending sides which fit through the openings. The top has a shoulder which locks outside the detent to hold the parts assembled and has a locking extension beyond the shoulder.

Abstract: Drawer front fastening hardware (10) with a lug (24) which can be fastened to the inside surface of the drawer front and has a vertical slot (26) opening at the bottom end, into which a stud (28) having a tap (30) opening at its end and protruding from the drawer side (14) can be introduced. The stud (28) can be inserted into the slot in the mounting lug (24) and, by tightening a fastening screw (31) provided with a washer (33) and driven into the tap (30), fixed therein, the drawer front (12) being thereby joined to the drawer side (14).The mounting lug (24) has in its area situated between the slot (26) and the drawer front an elongated recess or groove (40) running parallel to the slot (26) and a ramp (42) in a plane parallel to the drawer bottom from the bottom of the recess at an angle inclined away from the drawer front (12), on which an elongated margin (38) of the washer (33), bent at a complementary angle, is supported.

Abstract: The present invention includes an attachment apparatus comprising a rotation limiting member adapted to be threaded onto a threaded member; and a preload nut adapted to be threaded onto the threaded member. The rotation limiting member comprises a plurality of pins, and the preload nut comprises a plurality of slots, preferably wherein the plurality of pins and the plurality of slots are the same in number, which is preferably three. The plurality of pins of the rotation limiting member are filled into a corresponding plurality of slots of the preload nut to form a rotatable unit adapted to be threaded onto the threaded member. In use, the rotatable unit is threaded onto the threaded member. The present invention thus provides a unitized removable device for holes, including holes other than circular in shape, which have an established depth before an end of, or before an enlargement of the hole.