Abstract: The invention relates to a tree grille system for covering tree grates. Said system consists of grille sections (1), which are interconnected by couplings (7) to form a self-supporting tree grille. The couplings (7) consist of two fixed coupling parts (8) configured on the grille sections (1) and a coupling part (9) that can be inserted between the other parts and then rotated into a locking position. An arc-shaped rib (18) is configured on the underside of the fixed coupling parts (8), the outer peripheral face (21) of said rib being configured as a ramp-type clamping surface (23). One section of said surface (23) is provided with undulating fluting (24). When the displaceable coupling part (9) is rotated into the locking position, teeth (34) that are formed on said part slide over the fluting (24), causing the displaceable coupling part (9) to be locked by a friction and positive fit in the locking position.

Abstract: A worm shaft coupling for connecting a driven shaft of a transmission mechanism and a coaxially arranged worm shaft of an extruder has a coupling sleeve which connects two coupling pegs in a torque-proof manner and is, in turn axially secured using threaded sleeves. The internal thread of the threaded sleeve facing the worm shaft of the extruder and the associated external thread of the coupling sleeve have recesses allowing the threaded sleeve and the coupling sleeve to be connected in the manner of a bayonet fixing.

Abstract: The present invention is directed to a quick change adapter for removeably mounting a finishing tool to a rotary drive shaft. The quick change adapter includes a shaft hub mount designed to be mounted to a rotary drive shaft, and a tool hub mount designed to hold a finishing tool and to be removably secured to the shaft hub mount. The shaft hub mount includes a shaft sleeve with an annular sleeve ring on it. An annular locking ring is biased against the sleeve ring and includes a locking tab that slides into a locking slot in the sleeve ring. The tool adapter includes a lock sleeve adapted to slide between the annular locking ring and the shaft sleeve. The lock sleeve has a locking finger this slides into a recess slot in the locking slot when the tool adapter mount is engaged with the shaft hub mount.

Abstract: A manual locking assembly for a quick connect coupling includes a cylindrical male pin, a cylindrical sleeve-shaped female part, a rotatable key bolt, a locking bolt retainer, and a spring. The rotatable key bolt is axially arranged and central within the cylindrical sleeve-shaped female part, and has a quadrilateral locking block, a cylindrical guiding flange, and a cylindrical locking bolt having millings on opposite sides. The locking bolt retainer has a cylindrical body including a transversal hole having a radius that corresponds with an outer radius of the cylindrical locking bolt and a groove extending from the transversal hole that corresponds to the millings on the cylindrical locking bolt, a lower flange on a first side of the cylindrical body, and an upper flange located on a second side of the cylindrical body opposite to the first side, the upper flange having an inclined surface on an upper side of the upper flange.

Abstract: Inner circumference projections of a driven coupling are engaged with inner circumference recesses of a drive coupling. Outer circumference projections of the driven coupling are engaged with outer circumference recesses of the drive coupling. A chamfered portion formed at each tip of the rotational leading-side side surface of the inner circumference projections is capable of contact with the leading-side side surface of each inner circumference recess. A rotational trailing-side circumferential end face of each outer circumference projection and a rotational trailing-side circumferential end face of each outer circumference recess are in surface-to-surface contact with each other. As a result, the drive coupling and the driven coupling can rotate integrally without rattling in the rotational direction.

Abstract: A screwless fixing assembly disposed on a frame is provided, which includes a fixed member, a movable member, an elastic member, and a positioning device. The fixed member is fixed on the frame and has an opening form thereon. The movable member is movably disposed to the fixed member and has a pin to pass through a through hole of the frame. The elastic member is provided for pushing the movable member to move away from the frame. The positioning device is disposed on the movable member and protrudes on the fixed member through the opening, for being selectively engaged with the fixed member at a first position and a second position, so as to move the pin to leave or inserted into the through hole. An electronic device is fixed on the other side of the frame by the pin passing through the through hole.

Abstract: A device according to the invention for fastening an add-on part (2) to a support part is equipped with a fastening bracket (11), which has a flat cover plate (12) and bracket arms that are joined to opposite sides of said cover plate (12), and with a bearing part (1) that can be connected to the fastening bracket (11). The bearing part (1) has a receiving space (6) in which the cover plate (12) of the fastening bracket (11) is mounted so as to be rotatable between a locking position, in which the bracket arms engage behind the support part, and a releasing position, in which the bracket arms are out of engagement with the support part. In this way, an add-on part can be connected to and disconnected again from a support part in an efficient and reliable manner.

Abstract: The present invention discloses a grinding brush fixing device applying to a pneumatic tool for surface treatment. The spacing between the fixing arms and arc plates of the brush holder is reduced. Thereby, the press-fit face of the axially-extending fixing arm can press the brush collar onto the first press-fit edge and second press-fit edge, which are at two sides of the notches between two axially-extending arc plates. Further, a flexible gasket is radially placed in a space between the fixing arms and the arc plates. When the fixing disc is fastened to the brush holder, the flexible gasket and the brush collar are tightly compressed and firmly secured. Thus, force can be uniformly applied onto the brush collar and the bristles. The present invention can promote the stability of brush's rotation, generate straighter ground strips, prolong the durability of the grinding brush and grinding brush fixing device, and promote the grinding efficiency.

Abstract: A connection system including a self-adjusting mount for coupling various furniture components together. The connection system can aid in coupling furniture components together with differing manufacturing tolerances. The self-adjusting mount is adapted to receive a connecting member and is capable of simultaneously moving in a first and second directions to couple with the connecting member. The self-adjusting mount may also secure the connecting member, thereby fixing the location of the connecting member.

Abstract: A ceiling fan anchoring bracket and housing assembly for quick and easy installation of the ceiling fan housing for either hugger or down-rod fans is disclosed. The assembly comprises of hook-up pins and stationary lock-up pin fastened on and protruding from the anchoring bracket. The stationary lock-up pin latchingly locks the housing of the fan by spring or urging mechanism. The bracket and housing assembly enables the user to install the ceiling fan housing to the anchoring bracket without having to resort to using tools. All a user needs to do is to align and engage one side of the housing to the hook-up pins on the bracket and push the opposite side of the housing onto the stationary lock-up pin on the bracket through a spring action to complete the installation.

Abstract: An improved locking device is essentially characterized by the following features: at least two recessed sections extend radially outwards from the central axis and are arranged at regular angular intervals from one another, a setting member or rotary member is provided in the inside of the pot-like or housing-like fixed element; the rotary member comprises an actuation portion with a locking element which is axially offset in the direction of the base; the locking element has a structure provided with locking arms which project radially outwards, so that the thus designed locking element can be axially inserted through the recess.

Abstract: The present invention relates to a coupling device (1) to be connected to a corner fitting of a container, the coupling device comprises a housing (2), an engaging part (3) which is at least partially insertable into and releasable from said corner fitting. The engaging part (3) has a guide part (4) for guiding the engaging part with said corner fitting, further the engaging part (3) is rotably mounted in said housing (2) by means of a shaft portion (5) extending into the housing. The guide part (4) has a translation guide path for guiding the engaging part (3) in relation to the corner fitting in a horizontal direction, which translation guide path is rotational asymmetric in relation to an axis (7) of the shaft portion (5). Also included is a method for releasing a first container from a second.

Abstract: A holesaw mandrel assembly has a mandrel with a first shanking end, a body, and a second extending end which includes a threaded spud to receive a holesaw. A first member is secured on the second end. The first member is axially slidable on the second end. The first member also includes a friction surface to contact the holesaw. The friction surface moves between a first contacting position and a second release position. A mechanism on the mandrel moves the friction surface between the first and second positions.

Abstract: The present invention relates to a manual locking assembly for a quick connect coupling (1), wherein, from the outer radius of a cylindrical male pin (2), there extends at least one guiding and retaining lug (3) that during rotation is brought into abutment in corresponding locking grooves (7) within a cylindrical sleeve-shaped female part (6), wherein a centrally in the female part (6), axially arranged rotatable key bolt (10) comprising a quadrilateral locking block (12) that during engagement extends into a corresponding groove (5) in the cylindrical front piece (4) of the male pin (2), the key bolt (10) having a cylindrical guiding flange (13) and a cylindrical locking bolt (11) with millings (11?) on opposing sections.

Abstract: The invention relates to a releasable fastening system (10). The releasable fastening system (10) includes a fastening means having a pair of legs (12), at least part of the legs (12) being adapted for movement towards and away from a channel (16) between the legs (12). Each leg (12) has a foot (22) for engagement with external means (track) (26). The releasable fastening system (10) further includes means (wedge) (30) movable in the channel (16) between a locked position in which the feet (22) are in engagement with the external means (track) (26) and an unlocked position in which the feet (22) are disengaged from the external means (track) (26).

Abstract: A duct comprising an inner casing spaced apart from an outer casing and which also comprises a number of interfaced duct sections must be assembled in such a way to prevent relative redial movement between the casings and thereby inhibit buckling. The present invention is a duct which utilises abutment members which longitudinally extend from each of the inner walls across the interface of the duct sections. The abutment members are radially spaced apart in normal use but are configured such that substantially relative radial movement of the inner and outer walls is prevented when the overlapping members abut.

Abstract: A locking positioning mechanism includes a first element and a second element, the first element and second element rotatable relative to one another about a common rotational axis between a locked orientation and an unlocked orientation and axially translatable relative to one another. The mechanism further includes one or more first locking surfaces of the first element and one or more second locking surfaces of the second element. The second locking surfaces are configured to clear the first locking surfaces in the unlocked orientation. The second locking surface is configured for an interference fit with a first locking surface in the locked orientation.

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 sports stick portion includes a pin secured to a stick portion. The pin can have a male threaded region for engaging a mating stick portion and a distal end. A collar can concentrically surround the male threaded region and the distal end of the pin.

Abstract: Adapter for mounting on a work machine comprising an attachment for individually attaching one or more working implements to the work machine and allowing lateral rotation or tilting of the working implement, thereby raising one lateral end of the implement while simultaneously lowering the opposite lateral end. The adapter can be permanently mounted to the work machine (and remains dormant when not in use), or can be removably mounted thereto.

Abstract: A quick connect closure for connecting first and second structural members, said quick connect closure comprising a female part adapted to be connected to said first structural member and comprising a pair of opposite spring legs, and a closure pin adapted to be mounted to said second structural member so as to be rotatable about an axis of said quick connect closure and comprising a drive portion, a shaft-like intermediate portion and a closure body, said closure pin being adapted to be axially inserted into said female part in order to provide for a locking connection between said closure pin and said female part when said female part and said closure pin are in at least one locking position with respect to each other, and said spring legs of said female part cooperating with said closure body of said closure pin such that the closure pin is automatically rotated into said at least one locking position when the closure pin is in a rotational position spaced from said at least one locking position at the tim

Abstract: An attachment device for coupling one or more removable turbine components to a carrier of a turbine engine. The attachment device may include a securement structure rotatable about an axis of rotation and including one or more arms for grasping an arm extending from a support structure. A fastener may extend from the support structure and be inserted into a fastener receiving recess in the securement structure for preventing the securement structure from rotating and becoming disengaged from the support structure. The attachment device may also include a fastener retaining device for preventing the fastener, which may be a threaded bolt, from becoming disengaged from the attachment device, traveling downstream in a turbine, and damaging a turbine assembly.

Abstract: A shower head for a kitchen sink, comprising a first insert and a second insert for water conveyance, the second insert being provided with elements for coupling to the enclosure, which comprise at least one tab that is adapted to enter, as a consequence of motion in an axial direction, a receptacle provided in the enclosure in order to lock the insert upon rotation about its own axis, rotation in the opposite direction being prevented by the coupling with the first insert.

Abstract: A coupling assembly that can be used to quickly connect and disconnect an impeller shaft to and from a drive output shaft. A portion of the coupling assembly can be used to secure the impeller shaft inside a mixing vessel so that the impeller shaft can remain secure inside the mixing vessel when the drive is disconnected. The coupling assembly has a first and a second coupling half, a first group of locking pens that extend from the first coupling half and can pass through openings formed in the second coupling half, and second group of locking pins that extend from the first coupling half and can pass through openings formed in the top region of the mixing vessel.

Abstract: A drive of mounting a rotating implement to a crane arm or similar, comprises a rotator located between the crane arm and the unit that at one end is pivot-mounted to the implement for rotating the same relative to the crane arm and slewing around a first pivot axis and at the other end is mounted to the crane arm via a hinged link for slewing around a second pivot axis, a swivel coupling arranged on the rotator for supplying the working chambers of a drive for the rotator and any other consumers included in the unit with a hydraulic medium and that to one end of the swivel coupling is arranged connecting unions, to which hydraulic medium lines leading from the crane arm are attached.

Abstract: A room service table includes a frame, a tabletop including folding side portions and wheels. A push handle assembly mounts to an underside of the table and includes a handle portion and a hinge body portion. The handle portion includes a grip, a support portion and a hinge pin portion. The hinge body mounts to the tabletop and includes barrel portions supporting the hinge pin portion. The hinge pin portion has a tab formed in an end thereof engaging a complementary slot formed in the hinge body portion. The slot includes a first section and a second section that receive and retain the tab for aligning and securing the handle at the use position and at the storage position. The biasing member urges the pin toward the slot. Rotation is accomplished by sliding the handle axially so that the tab disengages the slot and rotating the handle to the desired position and then releasing the handle.

Abstract: Precision aligning fastener for releasably joining two halves of a manufactured article. The precision aligning fastener has a male body that threads into a female body. The threads on the male and female threads, bodies are provided in an interrupted-thread pattern, allowing the male body to be completely inserted into the female body before twisting and engaging the threads. A stop means is provided, to assist in aligning and to prevent overtightening of the fastener. The fastener is particularly well-suited to releasably join long, slender articles that must be precisely aligned to function properly, such as a hunter's longbow, billiard cues, furniture, etc.

Abstract: The invention is based on a tool holder for a power tool (i0), in particular for a hand-guided power angle grinder, having a slaving device (12) by way of which an inserted tool (14), which has a disklike hub (64), can be operatively connected to a drive shaft (16), and having a fastening device (18) which has a holding position and a release position. It is proposed that with the fastening device (18), the inserted tool (14) can be connected by positive engagement to the slaving device (12) in the circumferential direction (20, 22) in the release position and additionally in the axial direction (24, 26) in the holding position.

Abstract: The invention proposes a device for attaching an actuator (2) to a housing (4), in particular for an automotive vehicle, the actuator being provided for driving a movable equipment (41) disposed within the housing. The device comprises attaching means for attaching the actuator on the housing. The mounting means comprise two conjugated connection flanges (20, 40), respectively mounted on a connexion face (28) of the actuator (28) and on a connection face (48) of the housing. The connexion flanges are adapted to be assembled according to a male/female type connection at the outside of the housing.

Abstract: A latch mechanism for a fifth wheel hitch that automatically closes a jaw and locks the hitch when the hitch engages a kingpin. The latch mechanism includes a handle that is used set the latch for receiving the kingpin. The latch mechanism also includes a latching member that is biased toward a closed position and tripped in response to engagement of the kingpin with a jaw.

Abstract: A coupling device for an artificial model includes a male joining part, a female joining part and an insertion member. The male and female joining parts have a base disk attached with a front positioning plate and a rear lock plate respectively. The insertion member further includes an insert head, an adjustable bolt, a first elastic body, a cap, a pin, a ball, a second elastic body and a setscrew. The insertion member is inserted into the male and female joining parts such that the male joining part can open any angles with respect to the female joining part smoothly.

Abstract: A device for regulating the suction flow in a flexible connection pipe between a tool for machining surfaces and a machining dust suction unit. The device includes a tubular terminal connector fitted with internal threading for attaching the flexible pipe and at least one side opening on the external surface. The device also includes a hollow cylindrical body that rotatably embraces at least one portion of the terminal connector and is fitted on its external surface with at least one opening that can be adjusted angularly in relation to the opening of the terminal connector.

Abstract: An identification card holder, on the front side of which a replaceable identification card can be placed. A spring-loaded yo-yo is fastened and positioned on the reverse side of the holder, such that the yo-yo remains partially or completely invisible as the card, along with its holder, is viewed from the front side. As the yo-yo is integrated with the holder, the result will be a small-sized, readily portable, and easy-to-handle assembly, which can be distanced from a bearer to the proximity of a code reader for an electric lock without releasing the suspension.

Abstract: A surgical tool holder comprises a shank having first driveable end and second coupling end, the second end comprising a coupling device having interfaces for mating with corresponding structures on the inside of a hollow surgical tool, a first interface mating with a centering structure near a base end of the tool and a second interface mating with a second structure adjacent to a forward end of the tool, the tool being held in functional assembly to the shank by a releasable locking mechanism comprised of a locking sleeve slideably disposed about the shank, a spring biased against the coupling device by the locking sleeve, and a connection device retaining the locking sleeve in a fixed position during use, whereupon release of the connection device enables quick disassembly of the locking sleeve, spring and coupling device for cleaning and component sterilization.

Abstract: A drill chuck has a chuck body centered on and axis, and a tightening element surrounding the body and rotatable thereon about the axis. The tightening element has a front sleeve formed with jaw-holding guides and a rear sleeve releasably coupled with the front sleeve. A retaining ring bears axially forward on the sleeve. Releasable locking formations on the ring and body are relatively displaceable between a retaining position preventing axial rearward shifting of the ring and sleeve on the body and a freeing position permitting such shifting. A pusher rotationally coupled to the jaws bears axially forward on the jaws. Interengaging screwthreads on the pusher and chuck body are provided so that relative rotation of the sleeve together with the jaws and pusher relative to the chuck body axially displaces the jaws between their positions.

Abstract: A male portion for percussive rock drilling includes sections of reduced cross-sectional area. At least one thread for percussive rock drilling is provided at an end of the male portion. The end of the male portion comprises an abutment surface for the transfer of impact waves. The length of the portion is defined as the length of an imaginary cylinder from a plane of the impact surface to a point where the plane ceases to contact a crest of the thread, wherein the length divided by the external diameter of the cylinder lies within a range of 1–2.

Abstract: A ceiling fan anchoring bracket and housing assembly for quick and easy installation of the ceiling fan housing for either hugger or down-rod fans is disclosed. The assembly comprises of hook-up pins and lock-up pin fastened on and protruding from the anchoring bracket. The lock-up pin latchingly locks the housing of the fan by spring or urging mechanism. The bracket and housing assembly enables the user to install the ceiling fan housing to the anchoring bracket without having to resort to using tools. All a user needs to do is to align and engage one side of the housing to the hook-up pins on the bracket and push the opposite side of the housing onto the lock-up pin on the bracket through a spring action to complete the installation.

Abstract: A two coupler apparatus for interconnecting two scaffolding members wherein at least one coupler is defined by: a base interconnected to a second coupler and a lever hinged to the base. The base and the lever define a pocket for laterally receiving a length of a scaffold member. An arm is hinged to the base and the lever has a slot sized to receive the arm. The arm defines a hole positioned to extend beyond the lever when the arm is within the slot. A wedge is adapted for insertion through the hole to slidably move against the lever when the arm extends within the slot to wedge the arm within the lever whereby the scaffold member is locked within the at least one coupler.

Abstract: An apparatus for attaching ornaments onto substantially planar surfaces comprising, a mounting base with an aperture, a coupling device with attachment means and an ornament. The mounting based has a curved surface and is securely attachable to a substantially planar surface. The coupling device is securely or detachably attachable to the mounting base and the ornament is securely or detachably attachable to the coupling device.

Abstract: An attachment element (1; 31; 51), includes at least one engagement member (7.1; 7.2; 38.1; 55) insertable in a mounting opening (3.1; 3.2; 53) of a hollow body (2.1; 2.2; 41.1; 54) in its first position and engaging holding projections (4.1; 4.2; 40.1; 40.2; 60.1; 60.2) provided on the hollow body (2.1; 2.2; 41.1; 54) in its second position, at least one stop (6; 52) for engaging outer end sides of hollow body rims which limit the mounting opening (3.1; 3.2; 53), and at least one fastening element (8.1; 8.2; 32.1; 32.2; 57) having an expansion body (16.1; 33.1; 59) for laterally displacing the at least one engagement member (7.1; 7.2; 38.1; 55) from the first position thereof to the second position.

Abstract: A store fixture for displaying apparel or other hangable merchandise employs a horizontal support bar that is supported at an elevated position, and at least one swing-arm hang bar is pivotally supported situated underneath the horizontal support bar. The swing-arm hang bar has one or more projecting rods or tubes serving as arms on which the hangable merchandise can be suspended. The swing arm has a sleeve journaled on a pivot that is affixed to the support arm. There is a detent arrangement provided between the pivot and the sleeve, so that the swing-arm hang bar releasably locks into a first position that is at one angle to the horizontal support bar, parallel to the support bar, and a second position that is at another angle, a right angle, to it. Store personnel can change the orientation of the hang bars by simply lifting them up slightly to release the detents and ten rotating them to the desired position. Re-arranging the hang bars does not require any tools, nor removal or installation of any parts.

Abstract: A connecting fastener is provided. The fastener includes a cylindrical base that includes a first end and a second end and a wall. A central bore is defined in the base and an aperture is defined in the wall. At least one projection extends from an inner surface of the wall into the central bore proximate the first end of the base. A cylindrical collar has a first end disposed proximate the second end of the base, defines a central bore and includes a wall that defines a gap in the wall and a central bore. A shoulder is connected to and extends between the second end of the base and the first end of the collar along at least a portion of the respective circumferences of the base and the collar. A method of connecting tubing is also provided.

Abstract: Systems and techniques to simply, easily and quickly attache and detach a speaker to a mounting location. A speaker bracket can provide a pivot point for the speaker that also serves as an audio signal connection point. The speaker bracket can be built in a robust fashion and can include a receptacle that is mounted on a surface, such as an indoor or outdoor wall, on the side of a pool or spa, or in any other suitable location. The speaker bracket can also include a support that can be attached and detached from the receptacle. When attached, the support rotates about the receptacle via a pivot point. A positioning mechanism can be included that allows the support to be removably fixed or locked into a desired position relative to the receptacle.

Abstract: A system for joining two components includes a rotatable locking member having a pair of diametrically opposed notches, a pair of diametrically opposed first sectors having a first radius, and a pair of diametrically opposed second sectors having a second radius larger than the first radius. A shaft is attached to and extends axially from the locking member. One of the components has a cavity and an opening for inserting the locking member into the cavity. The other component has a receptacle for holding an end of the shaft opposite the locking member so that the shaft holds the two components together.

Abstract: A bayonet coupling including an annular groove and bayonet lugs on an inner ring-shaped member and an outer ring-shaped member; and insertion openings formed on either the inner ring-shaped member or the outer ring-shaped member which includes the annular groove. The bayonet lugs includes first bayonet lugs associated with the insertion openings to be insertable into the annular groove through the insertion openings, and a second bayonet lug for which no associated insertion opening is formed. The insertion openings, the first bayonet lugs and the second bayonet lug are shaped so that the second bayonet lug is insertable into the annular groove with axes of the outer and inner ring-shaped members being inclined to each other, and so that the first bayonet lugs are insertable into the annular groove through the insertion openings, respectively, after the second bayonet lug is inserted into the annular groove.

Abstract: In a connection between an inner casing tube of a steering column of a motor vehicle and a sleeve-shaped holder, an adjusting device for the casing tube is fastened and engages around the casing tube in an encircling manner and is fixed thereon in a form-fitting manner. In order to hold the holder on the casing tube in a secure and positionally correct manner counter to high axial forces and torques using the simplest arrangement possible, the casing tube has at least two axially spaced apart, radially protruding stops against which, on a mutually facing side, the holder bears with a respective stop edge, and the casing tube has at least one form-fitting element which interacts in a latching manner in the circumferential direction with a mating form-fitting element arranged on the holder.

Abstract: A system for retaining a sensor on an injection molded intake manifold that uses a twist-lock connection within the receiving port. The sensor body has outwardly projecting lugs that pass between inwardly projecting lugs in the receiving port. The face of the manifold is formed with external guiding projections around the receiving port that direct insertion of the sensor into the receiving port in a specific first, unlocked orientation, and permit rotation of the sensor to a second, locked orientation. After the sensor is rotated to the locked orientation, attachment of an external connector, such as a wire harness, prevents the sensor from being rotated back to the first, unlocked orientation by interfering with the external guiding projections.

Abstract: The invention relates to a sign hanger A, for facilitating the hanging of items such as a banner or the like from suspended ceiling grids in a store. The sign hanger is adapted to have a twist-lock releasable connection with a ceiling grid. A friction lock structure 42, 58 is added to decrease the likelihood of accidental deinstallation of the sign hanger A. In one embodiment the hanger has an elongated body 10 having spaced apart flanges 125, 130 in order to hold a banner 200. In another embodiment the hanger has a centrally located plateau 864, which co-operates with tapered surfaces 836 and 850 on respective clips 804 and 808 to hold the hanger in place on the ceiling grid.

Abstract: A security device secures an apparatus having a wall (1110) with a slot (1120). The security device includes first and second shafts. The shafts have arms (10) rotatable about their respective axis into and out of their respective unlocked positions. Each of the axes of the arms are different from each other. The shafts also have tangs (12) extending from the arms.

Abstract: Components must often be released again from their holder for maintenance. Since the fastenings are often very complicated, it takes a considerable amount of time to release them. A fastening system is one where components can be fastened in a rotationally locked manner to a holder, and released again in a simple, reliable and quick manner.