Abstract: A wheelchair push handle assembly incorporating a chair back having right and left loops, and an upper end; right and left upwardly opening tubes respectively received within the right and left loops; right and left eyes opening the right and left tubes, wherein the eyes overlie the chair back's loops; right and left “L” members having hollow bored columns within the right and left tubes; right and left series of apertures opening the right and left columns' hollow bores; right and left series of latch pins received within the right and left series of apertures; and right and left series of springs mounted within the right and left columns' hollow bores, wherein each spring is connected to one of the latch pins, wherein one of the right latch pins engages the right eye, and wherein one of the left latch pins engages the left eye.

Abstract: A dump trailer support assembly for supporting a belly dump trailer when the belly dump trailer is not coupled to a tractor includes a box for positioning on a support surface beneath a belly dump trailer. A shaft is slidably integrated into the box such that the shaft can be slid upwardly or downwardly in the box. A support is coupled to the shaft for supporting a bottom of the belly dump trailer when the belly dump trailer is not attached to a tractor. Additionally, the support is comprised of a magnetized material to magnetically engage the bottom of the belly dump trailer and inhibit the belly dump trailer from sliding on the support.

Abstract: A table assembly includes a worksurface and at least one leg assembly coupled to the worksurface and configured to support the worksurface above a floor surface, the at least one leg assembly including a first leg member having an aperture located along a length of the first leg member, the aperture having a first diameter, a second leg member telescoping received within the first leg member and having a threaded bore located along a length of the second leg member, the bore having a second diameter that is larger than the first diameter, and an engagement member having a first portion threadably received within the bore of the second leg member and a second portion configured to be selectively received within the aperture of the first leg member thereby telescopingly fixing the second leg member with respect to the first leg member.

Abstract: Telescoping pole systems and clamps thereof are described. The clamps include a body having one or more pin extensions and one or more locking extensions. The pin extensions and the locking extensions are arranged in an alternating manner. A pivot handle is operably connected to the body and has a lever arm that extends from an offset hinge, the offset hinge defining a hinge axis. A pivot pin passes through the one or more pin extensions of the body and the offset hinge of the pivot handle. The pivot pin defines a pivot axis. The hinge axis and the pivot axis are parallel but offset from each other and the one or more locking extensions are arranged to be actuated by the offset hinge as the pivot handle is rotated about the pivot axis of the pivot pin. The poles of such systems may be multi-lobed.

Abstract: Provided is a telescopic pole assembly, and a locking and damping assembly therefore.

Abstract: A mobile tower for transportation to and rapid deployment at remote sites where the mobile tower can be engaged with the ground, the mobile tower including an extendable and retractable tower secured to a mobile support structure including a frame having a plurality of rapidly deployable outriggers, wherein the tower includes three series of pivotally interconnected tower sections or segments, sections or segments of which engage with segments of each of the other series when the tower is assembled; the mobile tower including a plurality of guy wires secured between the extendable and retractable tower and the respective outriggers to stabilize the tower after the tower is assembled. The guy wires are preferably secured to the extendable and retractable tower at first and second connecting positions that are displaced from one another about an outer perimeter. Methods of deploying the mobile tower are also disclosed.

Abstract: A wrench assembly includes first and second wrench members, and a switch, having an engagement member and a proximal extremity, mounted to the first wrench member. The switch moves between engaging and disengaging positions of the engagement member. The proximal extremity is undepressed in the engagement member engaging position, and is depressed in the engagement member disengaging position. The switch moves from the engagement member engaging position to the engagement member disengaging position, when the second wrench member is partially installed into the first wrench member. The switch moves from the engagement member disengaging position to the engagement member engaging position releasably engaging the engagement member to the complemental engagement member disabling the second wrench member from being withdrawn from the first wrench member, when the engagement member registers with the complemental engagement member when the second wrench member is installed into the first wrench member.

Abstract: An improved telepole device having attachment means for attaching swimming pool cleaning, and other tools. The improved telepole device preferably includes an inner tube which freely slides within an outer tube, and a locking device to temporarily secure the inner tube in a desired position within the outer tube. A preferred lightweight design may be at least partially hollow along the length of the tube(s), and durability may be provided by inner/reinforcement wall(s) that extend across the hollow portion(s) of one or both of the tubes. On the end of the outer tube through which the inner tube slides/extends is a collar element attached thereto and comprised of a locking device having a detent mechanism for “locking” the inner tube in place within the outer tube. Preferably, the collar's opening and the profile of the inner tube have one or more sides that, due to their relative position with respect to each other, can prevent the inner tube from rotating within the collar.

Abstract: The present invention relates to a ‘prop up’ or support device for supporting counters or sinks during renovation, restoration, mitigation, or other similar situations. More specifically, the prop up device is a rectilinear shaped telescoping device having telescoping arms that can extend to different heights to support kitchen counters, bars, or sinks of different heights, and ensures the kitchen remains functional during repairs, renovations, or the like. The prop up device enables the telescoping arms to easily collapse, fold, and store when the support device is in the storage orientation (i.e. not in use).

Abstract: A table includes collapsible telescopic legs and a height adjustment mechanism. The height adjustment mechanism includes a pair of latch arms and an activation device. When pushed downward, the activation device engages with the latch arms to cause the latch arms to move inward. The inward motion is opposed by a biasing mechanism disposed between the latch arms. As the latch arms move inward, tabs at the ends of the latch arms disengage from notches on the telescopic legs to allow the legs to be extended or retracted. When the activation device is released, the tabs engage with the notches to lock the legs at a selected height position.

Abstract: A supporting device for a height adjustable table (1) comprises a first (3) and a second supporting element (3?) respectively having a first, a second, and a third liner component (5, 5?, 6, 6?, 7, 7?) arranged in a manner displaceable relative to each other to cause a change of length (L) of the supporting elements (3, 3?). The first (5, 5?), the second (6, 6?) and the third liner component (7, 7?) are coupled such that a displacement of the second to the first liner component synchronously causes a displacement of the third to the second liner component. The supporting device comprises a synchronization device to synchronize the displacement of the second liner component (6, 6?) to the first liner component (5, 5?) or the displacement of the third liner component (7, 7?) to the second liner component (6, 6?) between the first and the second supporting elements.

Abstract: A tripod for video-photographic equipment, includes: at least one leg having a first, a second and a third section that engage so as to axially slide in a telescopic manner one after the other; a first clamping device that is provided between the first and the second section and a second clamping device that is provided between the second and the third section, an actuating element that is connected to the first clamping device, a transmission element that connects the first and the second clamping device such that the movement of the first clamping device causes the second clamping device to move in a similar manner so that said first and second clamping devices simultaneously clamp and release, and an adjustment member that is provided at the first clamping device in order to adjust the second clamping device via the transmission element.

Abstract: A linear actuator for adjusting a piece of furniture comprises a motor having a motor shaft, a conversion arrangement coupled to the motor shaft and adapted to convert a rotational movement generated by the motor shaft into an elongation of the linear actuator, and a locking arrangement coupled directly or indirectly to the motor shaft and adapted to selectively cause rotation locking of the motor shaft by means of a locking element. The locking arrangement comprises an inner part with at least one inner chamber and an outer part radially surrounding the inner part and having at least one outer chamber. The outer part and the inner part are rotatable relative to each other in such a way that the at least one inner chamber and the at least one outer chamber can be aligned with each other. The rotation locking is activated by clamping the locking element between the at least one inner chamber and the at least one outer chamber by means of rotation of the inner part and the outer part relative to each other.

Abstract: A side table includes a base unit, a top board, and a telescopic tube unit that is mounted to the base unit, and that includes an outer tube subunit, an inner tube subunit and a roller subunit. The outer tube subunit extends in an up-down direction. The inner tube subunit is coupled telescopically to the outer tube subunit. The roller subunit is mounted to the inner tube subunit, and includes a plurality of rollers that are in slidable contact with the outer tube subunit. The top board corresponds in position to the base unit in the up-down direction, and is mounted co-movably to the outer tube subunit such that a distance between the base unit and the top board in the up-down direction changes during telescopic operation of the telescopic tube unit.

Abstract: An end adapter including first and second wedges and an expanding portion. The end adapter is capable of releasably coupling an accessory, for example outrigger poles, fishing rods, shade poles, etc., to a mount. The expanding portion can be axially compressed, which causes radial expansion, to retain the end adapter and the accessory in the mount.

Abstract: Portable chairs including a detachable container. The container can be insulated for keeping beverages and food cold for an extended period. The folding chair preferably is designed and constructed for the demands of the outdoors. Various detachable, reconfigurable, and/or interchangeable features including the container, carrying straps, and cup holder. The container can be easily and conveniently attached and detached from the folding chair. The container can have exterior pockets which are welded and sealed to protect items contained within. The straps can have multiple different attachment points which allow multiple different carrying styles and reconfigurations including a backpack type carrying configuration, over-the-shoulder briefcase type carrying configuration, and across the body satchel type configuration, for example.

Abstract: Disclosed are adjustment mechanisms and structures including one or more adjustment mechanisms. An adjustment mechanism comprising a casing, first and second arms, a second arm, a button, and an elastic member. The first and second arms are movably disposed in a channel of the casing. The button is operably coupled with the first and second arms and selectively pushes a first end of the first arm out of a first side of the casing and a second end of a second arm out of a second side of the casing. The elastic member abuts the casing and button such that the button is held at a desired position and consequently the first and second arms are held at a desired state under normal conditions. The adjustment mechanisms of the present disclosure provide an easy, convenient and safe means for height or length adjustment.

Abstract: An embodiment includes a leg height adjustment mechanism that includes a first and second latch arms, a first and second retractors, and an activator. The latch arms each include an engagement structure. The retractors each include a sloped surface and a receiving structure. The receiving structure is engaged with one of the engagement structures of the first or the second latch arms. The first latch arm extends in a first lateral direction and the second latch arm extends a second lateral direction. The second retractor is separated from the first retractor in a second lateral direction that is opposite the first lateral direction. The activator includes angled lower surfaces that are positioned outwardly relative to the sloped surfaces.

Abstract: A stabilizer system includes first and second base members each forming a passage; first and second rod members; each passage being sized for receipt of a corresponding one of the first and second rod members; each of the first and second base members forming a T-shaped receptacle; first and second barrel fasteners; each T-shaped receptacle being sized for selective engaged receipt of a corresponding one of the first and second barrel fasteners for securing the base members to corresponding ones of the first and second support legs of a target gameboard; first and second spike members each having a threaded tip; and each of the first and second rod members forming a threaded cavity that is sized for engaged receipt of the threaded tip of a respective one of the first and second spike members, wherein a second end of the spike member is sized for engaging the ground surface.

Abstract: A photovoltaic support includes a first vertical upright column (110) and a second vertical upright column (120) on a foundation, and a beam (10) respectively hinged with a first end of the first vertical upright column (110) and a first end of the second vertical upright column (120). The photovoltaic support further includes a first movable connecting piece (140) provided on the foundation and connected with a second end of the first vertical upright column (110). The first movable connecting piece (140) is automatically adjusted according to the wind intensity, such that the first vertical upright column (110) moves in a vertical direction to adjust an inclination angle of the beam (130). The photovoltaic support can adjust the angle adaptively in the case of a strong wind, and restore automatically after the strong wind has passed.

Abstract: A clamping device (1) for a walking pole for securing an inner tube (3) which can be slid into an opening of the clamping device that is secured to an outer tube (2). There is a plastic sleeve (4), on which a clamping lever (6) is hinged against the force of a spring element (10). The clamping lever (6) has a first lever arm (12) for releasing the clamping device (1) and a second lever arm (11) arranged on the other side. The second lever arm (11) has a protrusion (9) which is arranged radially to the pole axis (36) and which engages into and through a radial through-opening (19) in the plastic sleeve (4) and engages into a groove (22) of the inner tube (3) in a formfitting manner in order to axially secure the two tubes (2, 3).

Abstract: A mobile tower for transportation to and rapid deployment at remote sites where the mobile tower can be engaged with the ground, the mobile tower including an extendable and retractable tower secured to a mobile support structure including a frame having a plurality of rapidly deployable outriggers, wherein the tower includes three series of pivotally interconnected tower sections or segments, sections or segments of which engage with segments of each of the other series when the tower is assembled; the mobile tower including a rigging apparatus that generally encircles the tower and a plurality of guy wires secured between the tower and the respective outriggers to stabilize the tower after the tower is assembled. The guy wires are preferably secured to the rigging apparatus at first and second connecting positions that are displaced from one another about an outer perimeter of the rigging apparatus. Methods of deploying the mobile tower are also disclosed.

Abstract: A convertible trekking staff includes a main shaft having an interior cavity that houses two concentric shafts. A first configuration includes a handle device coupled to the main shaft with the two concentric shafts disposed within the interior cavity of the main shaft to form a trekking staff. A second configuration includes an external component coupled to the main shaft in place of the handle device and the two concentric shafts received by an engagement structure on the main shaft so as to define a tripod.

Abstract: A compression lock assembly for an adjustable length rod assembly with inner and outer tubes is provided. The compression lock assembly has an adapter adapted to be connected to rotate with the inner tube. An elastomeric ring with an inner opening and outer diameter is concentric and disposed coaxially with the adapter. A threaded fastener extends through the elastomeric ring and is fixed to the adapter. A lock nut is disposed about the threaded fastener and fixed to rotate with the elastomeric ring. The locking nut moves along the threaded fastener to compress the elastomeric ring and expand the outer diameter from a first diameter to a second diameter greater than the first diameter as the elastomeric ring is rotated relative to the adapter.

Abstract: A display device includes a display unit having a panel-shape, a stand supporting the display unit, an adjusting mechanism being attached to the display unit and enabling the display unit to move up and down relative to the stand and turn around the stand, a first fastening member fastening the adjusting mechanism to the stand, and a regulating mechanism regulating the display unit from descending relative to the stand when the first fastening member is removed. The regulating mechanism includes a projection being formed on one of the stand and the adjusting mechanism, and a recess being formed in the other of the stand and the adjusting mechanism and being fitted onto the projection.

Abstract: A component for a gas turbine engine includes a first component end, a second component end and a cavity extending from the first component end to the second component end. A baffle assembly is located in the cavity including a first baffle portion inserted into the cavity and a second baffle portion inserted into the cavity. The first baffle portion overlaps the second baffle portion. A vane for a gas turbine engine includes an outer platform, an inner platform and an airfoil portion extending. A core extends through the airfoil portion. A baffle is positioned in the core and is offset from the core wall. The baffle includes a first baffle portion inserted into the core and a second baffle portion inserted into the core. One of the first baffle portion or the second baffle portion overlaps the other of the first baffle portion or the second baffle portion.

Abstract: A leveling foot having a base section with a raised, hollow column. A spring is arranged in the hollow column. A moveable top piece engages the column, and is movable in the vertical direction against the force of the spring. The top piece is slightly larger than the column, such that side walls of the top piece overlap the sides of the column when the spring is compressed. The bottom edges of the side walls of the top piece are angled. A generally U-shaped wedge device is provided that may be pressed into engagement with the base section, whereby a leg of the U engages each side of the column. The top surfaces of the legs of the U-shaped device are angled in the form of wedges, the angles of the top surfaces of the legs corresponding to the angles of the side walls of the movable top piece, such that the side walls of the top piece will rest upon the angled top surfaces of the legs of the wedge device when the top piece is under load.

Abstract: A mount includes a mount base and a mount head coupled to the mount base. The mount base supports the mount head relative to another stationary or movable structure. A handheld electronic device couples to the mount head to be supported relative to the structure at the selection of a user.

Abstract: An embodiment includes a leg height adjustment mechanism that includes a first and second latch arms, a first and second retractors, and an activator. The latch arms each include an engagement structure. The retractors each include a sloped surface and a receiving structure. The receiving structure is engaged with one of the engagement structures of the first or the second latch arms. The first latch arm extends in a first lateral direction and the second latch arm extends a second lateral direction. The second retractor is separated from the first retractor in a second lateral direction that is opposite the first lateral direction. The activator includes angled lower surfaces that are positioned outwardly relative to the sloped surfaces.

Abstract: A frame structure of a perambulator, a child seat, an infant carrier or the like, includes a profiled frame element which along a profile direction of the frame element has a substantially constant cross-section, wherein the profiled frame element includes an at least predominantly closed cross-section, and wherein the profiled fame element has an inwardly projecting first protrusion which is configured to be brought into engagement with a fastening arrangement.

Abstract: A curtain rod structure has an inner tube, an outer tube and a blocking unit disposed between the inner and outer tubes. The blocking unit is configured for securing and releasing the length adjustment for the inner tube and the outer tube. By rotating one of the inner tube or the outer tube, the packing cover of the blocking unit is released from the outer tube for adjustment.

Abstract: An adjustable leg assembly for use in a bedding product, such as an adjustable bed, may be stabilized by rotating the leg of the leg assembly. To change the length of the leg assembly, a leg must be rotated in the opposite direction to loosen a slotted collar located inside a receiver welded to a frame of the adjustable bed. A wedge is fixed inside the receiver with a push pin assembly above the slotted collar. A threaded member of the leg extends through the wedge. Rotation of the leg moves the leg slightly upwardly relative to the stationary wedge, causing an upper portion of the slotted collar to expand over a portion of the stationary wedge until the slotted collar contacts an inside surface of the receiver and stabilizes the leg assembly.

Abstract: A wall-mounted type toilet fixing device includes a flush water tank device that is hidden in an area behind a wall, and a fixing unit, the fixing unit includes support portions, a toilet fixing portion, a pair of left and right legs, and a drain pipe connection, and the pair of legs are disposed outside from the drain pipe connection and inside from a side wall of a toilet body in elevation view, and are disposed laterally asymmetrically to each other with respect to a central axis passing through a center of the drain pipe connection and dividing the fixing unit equally in a left-right direction, in a state where the toilet body is fixed to the toilet fixing portion.

Abstract: A telescopic assembly, particularly suited to a tripod or monopod, having a plurality of telescopically arranged tube assemblies. Each tube assembly has a support tube, a locking assembly, and an actuating tube operatively engaged with, and slidably movable within, the locking assembly. The support tube telescopically receives a further locking assembly and an end of a corresponding further support tube of another of the plurality of support tubes and the actuating tube telescopically receives an end of a corresponding further actuating tube of another of the plurality of actuating tubes. Advantageously, all segments of the telescopic assembly can be unlocked, extended or retracted, and locked with a single actuator.

Abstract: Various embodiments of the present invention are directed to a convertible children's high chair. According to various embodiments, the convertible high chair generally comprises a first child seat supported above a floor by a high chair frame, and a second child seat configured for being removably coupled to first child seat. The second child seat is configured such that, when detached from the high chair's first child seat, it can be used apart from the high chair as a booster seat (e.g., secured to the seating surface of a standard chair or another support surface). In certain embodiments, the second child seat includes a base surface configured to stably support the second child seat on a separate support surface (e.g., without the need to be attached to or mounted on a separate base or support member).

Abstract: A telescoping device including an upper tubular body, a lower tubular body, and a fixing unit that releasably fixes the lower tubular body with respect to the upper tubular body. The fixing unit includes an operation body and a fixation body. The fixation body consists of an outer member, an upper inner member, and a lower inner member. On the outer member, inner peripheral upward inclined surfaces and inner peripheral downward inclined surfaces are formed. On the upper inner member, outer peripheral downward inclined surfaces are formed, and on the lower inner member, outer peripheral upward inclined surfaces are formed.

Abstract: This invention discloses a mobile tower system in which a telescoping tower may be with a plurality of tower structures may be extended to a height much greater than its contracted length. The tower may be transported horizontal, rotated to a vertical position and then the individual tower structures extended and secured via spring pins relative to the adjacent tower structure, the erection of the tower sections may be with external equipment such as a boom truck, or utilizing an internal hydraulic cylinder.

Abstract: A bicycle component fastening device includes a bicycle component body having a beam, a first adjusting element, a second adjusting element and a fastening element. The first adjusting element has a first assembly end and is fixedly coupled with the beam. The second adjusting element is coupled with the beam and has a second assembly end and an operating element. The operating element drives the second adjusting element to move towards or away from the first adjusting element. The fastening element has a first assembly portion engaging the first assembly end and a second assembly portion engaging the second assembly end. When the operating element drives the second adjusting element to move close to the first adjusting element, part of the second assembly end slips out of the second assembly portion such that the fastening element moves away from the beam.

Abstract: Tool-free bicycle components include a pedal assembly with pedals shipped in “folded” positions and rotated by hand into locked “open” positions for riding. A locking member nests in an axle notch to rotationally lock the pedals in place. A stem-fork assembly includes a fork unit having a fork post with a slidable compression ring covering a spring-biased stem locking member. The fork post is inserted into a stem tube of a stem unit, pushing the ring down and exposing the stem locking member, which can then “snap” into the stem tube to lock the fork unit with the stem unit. A training wheel assembly includes a mounting unit having a spring member with a bendable engagement end. When a wheel support with engagement slot is inserted into the mounting unit, the spring member snaps into the engagement slot to lock the training wheel support in place.

Abstract: A collapsible canopy structure includes one or more eaves, one or more fixed eave mounts, one or more sliding eave mounts and one or more vertical poles. Each of the vertical poles has a top end and a bottom end. Each of the vertical poles is connected by at least one of the one or more eaves. At least one of the fixed eave mounts is coupled to at least one of the eaves and attached proximate to the top end of at least one of the vertical poles. At least one of the sliding eave mounts is coupled to at least one of the eaves and slidingly coupled to one of the vertical poles between its top end and its bottom end. One or more detent elements include a round or spherical detent surface that engages an opening of the one or more vertical poles.

Abstract: A support post comprising first and second elongate members, a ceiling engaging member at the upper end of the first elongate member and a floor engaging member at the lower end of the second elongate member. A spring biases the ceiling engaging member away from the upper end of the first elongate member. A lock maintains the spring in a compressed configuration. When in its unlocked position the lock releases the spring and permits it to apply a biasing force to the ceiling engaging member, urging the ceiling engaging member away from the upper end of the first elongate member. A latch is secured to the first elongate member and permits telescopic movement between the elongate members when said lock is in its locked position. The latch engages the second elongate member when the lock is in its unlocked position and resists relative telescopic movement between the elongate members.

Abstract: A system, in certain embodiments, includes a joint and an energy harvesting system. The energy harvesting system includes an energy conversion system configured to convert kinetic energy from movement of the joint into electrical energy.

Abstract: This invention provides a portable system for the generation of photovoltaic energy. The power plant is provided as a kit in a plurality of containers, each of which can be carried by one person. This power plant can be assembled in a few hours by two people. The power plant is adjustable and can adapt to a variety of locations and environments. The power plant includes a frame structure, a movable photovoltaic collection array of more than one solar panel, a power management module, battery power storage system and various cables. The power plant can include shelving and can function as a vehicle port. The photovoltaic collection array can be pivotally raised and lowered for optimal solar power collection manually or mechanically. In further embodiments, more than one such power plant can be joined together to create a portable local power grid.

Abstract: A bone fixation apparatus is provided and includes a bone fixation plate having a fixation hole, a fastener shaft having a bone-anchoring portion and an upper portion defining an outer cam, and a C-shaped annular member having an outer surface, an inner surface defining an inner cam, and a gap formed through the entire annular member. The inner cam cooperates with the outer cam of the fastener shaft to move the annular member between an unexpanded position and an expanded position independent from movement of the fastener shaft relative to the bone fixation plate.

Abstract: A linear surgical stapler includes an upper staple cartridge receiving half-section, a lower staple cartridge receiving half-section and a staple cartridge assembly. The staple cartridge assembly includes a cutting groove in which a reciprocating movement cutter is mounted. The cutter includes a bottom surface and a knife blade located at a far end of the cutter. The staple cartridge assembly includes a restricting member mounted therein and an elastic stopper. The elastic stopper abuts against the restricting member when the staple cartridge assembly is in an initial state. The restricting member breaks away from the staple cartridge assembly when the staple cartridge assembly is in a firing complete state, thereby preventing the cutter from sliding towards the far end of the staple cartridge. As a result, misfiring throughout the whole operation of the linear surgical stapler is prevented.

Abstract: A positioning structure includes a locating member, a movable mechanism mounted in the locating member for the connection of a mop and movable up and down relative to the locating member, and a positioning mechanism mounted in the locating member for stopping against the positioning mechanism upon connection of a mop to the movable mechanism to support the mop stably in position for dehydration through a spining action after movement of the movable mechanism to the top side of the locating member.

Abstract: A self stabilizing system which has an incompressible coil at least partially encompassed in a housing, and which controls a foot of a device to be stabilized. The coil abuts a plunger, which plunger is for allowing a user to selectably lock the elevation by use of a pin which fits within a plurality of annular grooves on the plunger. In a first embodiment, a pair of coils surround the plunger on either side and control a pair of feet, thus allowing automatic stabilization on an uneven surface. In a second embodiment, a single coil is controlled by a spring which abuts the plunger allowing a spring-loaded system for selecting an elevation to lock the plunger.

Abstract: A clamp for internally coupling and decoupling two components can include a base fittable within an interior of at least one of two components to be coupled together. The clamp can also include an engagement member movably supported about the base. The engagement member can interface with and engage interior portions of the two components when in a coupled position separated from the interior portions of the two components when in a decoupled position. The clamp can further include a wedge movably supported about the base to facilitate movement of the engagement member between the coupled and the decoupled positions. In addition, the clamp can include a secure and release mechanism operable with the base and the wedge to alternately secure the wedge to maintain the engagement member in the coupled position and release the wedge to facilitate movement of the engagement member to the decoupled position.

Abstract: A chair footrest ring positioning structure includes a guide region tilting downward and concavely disposed on an outer surface of any one side of the lower segment of the tightening case, one or more anti-slip pads fixed inside an internal space of the tightening case, one or more grooves concavely disposed at a periphery of the tightening case, to facilitate insertion of a middle pipe of the chair, and a sleeve corresponding in shape to the middle of the footrest ring fitted around the tightening case. One or more bumps extending from an inner side of the sleeve are inserted into the grooves of the tightening case, respectively. When the middle pipe is rotated to move the tightening case by a predetermined distance, the guide region undergoes a displacement to drive insertion of the bumps, thereby pushing the tightening case inward.

Abstract: The invention concerns a ring (4) for fastening a pipe (1) to a tubular body (2). According to the invention, the ring comprises two rigid sectors (5) that are coupled to each other by at least one elastically deformable annular portion (12), the two sectors and the portion being a single part, each sector (5) having an inner face (6), protruding from which at least one anchoring stud (7) extends radially, intended to be received in a housing correspondingly provided in a wall of the pipe, each anchoring stud (7) comprising two grooves (9) extending circumferentially to either side of said anchoring stud. The invention also concerns connection means comprising such a ring.