Abstract: A wall mount adaptor of embodiments of the disclosed technology includes a wire loop with a plurality of front and back crossbars and a plurality of removably attachable shelves. Each shelf of the plurality of shelves may be removably attached by placing a curved portion of the shelf over a front crossbar, passing a back portion of the shelf between the front crossbar and a back crossbar (such as a back crossbar which corresponds to the front crossbar), and rotating the shelf such that the back portion thereof abuts the back crossbar.

Abstract: A CPR device having a base member configured to be placed underneath a patient, a chest compression mechanism configured to deliver CPR chest compressions to the patient, a support leg configured to support the chest compression mechanism at a distance from the base member, a clamp mechanism coupled to the support leg, and a release mechanism coupled to the support leg and the clamp mechanism. The clamp mechanism is configured to attach the support leg to a lock component of the base member in a latch-closed configuration and to release the support leg from the lock component in a latch-open configuration. The clamp mechanism is further configured to transition from the latch-closed configuration to the latch-open configuration when the lock component of the base member impacts an external portion of the clamp mechanism without the release mechanism being pulled away from the base member.

Abstract: A lens apparatus includes a first barrel configured to hold a first lens unit, a fixed barrel configured to hold a final lens unit, a focus lens unit driven by an actuator, and a positioning mechanism configured to determine positions of the first barrel and the fixed barrel in a rotational direction around an optical axis. The first barrel and the fixed barrel are directly connected, and the actuator and the focus lens unit are provided in a space formed by the first barrel and the fixed barrel.

Abstract: A pivoting fastener assembly for securely fastening a panel in spaced relation to a support backing, and a method of manufacturing the same. The fastener assembly includes: a magnet-carrier assembly that includes a magnet that is fixed to a carrier member; and a base member that includes a base portion and a pivoting portion. The pivoting portion includes a head, a trunk, and an extension portion that is connected to the base portion. The extension portion includes a top side that connects a first peripheral surface to a second peripheral surface of the extension portion. A first end of the trunk is connected to the top side of the extension portion and a second end of the trunk is connected to the head. The base member is a unitary piece, and the head of the pivoting portion engages and retains the carrier member of the magnet-carrier assembly.

Abstract: Systems, devices and methods related to spinal stabilization are provided. A system can comprise a plurality of cross-links. Each of the cross-links can include a central rod holder that extends substantially along a mid-line of the spine and a pair of extension members extending from the central rod holder. The extension members can be secured to a vertebral body via a fixation device, such as a spinal screw or a hook member having serrations and/or side-cuts. One or more rod members can be extended across the central rod holders of the cross-links, thereby forming a stable spinal stabilization system providing bilateral stress distribution across different levels of the spine.

Abstract: A fastening assembly includes a receiving seat and a clip having an operation portion, a holding portion, an insertion portion, and a pair of connection leg portions. The receiving seat includes a neck portion and a receiving channel. The insertion portion connects to the operation portion by the pair of connection leg portions, and the holding portion connects to the operation portion. When the clip is mounted on the neck portion of the receiving seat, the insertion portion of the clip is at least partially inserted into the receiving channel through the opening in a first neck portion side wall, and the holding portion of the clip abuts against a second neck portion side wall. When a pushing force is applied to the operation portion toward the neck portion, the insertion portion can be withdrawn from the receiving channel, such that the clip can be removed from the receiving seat.

Abstract: An electrical wiring system providing selectable referencing to earth ground having a housing having a first terminal for attachment to HOT, a second terminal for attachment to LOAD, and a flexible terminal having a first leg mounted to the electrical wiring device and a second leg connected to the first leg via a flexible joint, wherein the relative distance between the first leg and the second leg is adjustable between an extended position and a retracted position by flexing the flexible joint. The flexible joint being biased in the extended position, wherein the first leg defines a first aperture and the second leg defines a second aperture, and a load control circuit disposed within the housing and receiving a line input from the first terminal and a reference input. The reference input being referenced to the electric potential of the flexible terminal.

Abstract: A rotor blade has a spanwise axis, a root comprising an anchor having an anchor surface configured to form at least one of a normal angle relative to the spanwise axis and an acute angle relative to the spanwise axis, and a selectively removable tip comprising a connector having a connector surface configured to complement the anchor surface.

Abstract: Approaches for bracket for strand mounted CATV outdoor equipment. The bracket comprises a body having a first end and a second end opposing the first end. The first end comprises one or more resting hooks sized to be positioned over a strand. The resting hooks allow for resting the CATV outdoor equipment temporarily onto the strand in a position that readily accommodates the permanent attachment of the CATV outdoor equipment to the strand. The first end of the bracket also comprises a clamp for securing the bracket to the strand, while the second end comprises a securing mechanism for securing the bracket to the CATV outdoor equipment. The bracket may be formed from a single piece of shaped metal.

Abstract: A tether clip for interconnecting an anchor structure and an accessory comprises an upper clamping member, a lower clamping member, and a biasing member. The lower clamping member is pivotally connected to the upper clamping member, and the biasing member biases the upper clamping member and the lower clamping member in a closed position. A lower lanyard receiving end and an upper lanyard receiving end are adapted to receive a lanyard connected to the accessory. When the lanyard is under a tensile load, a lateral force is exerted on the lower lanyard receiving end and the upper lanyard receiving end, which translates to a torsional load on the upper clamping end and the lower clamping end to place a stronger clamping force on the anchor structure in the closed position.

Abstract: Disclosed herein is an integrated bonding mid clamp device for solar panel mounting and grounding, as well as a related system and method. The integrated bonding mid clamp includes a deformable toothed washer for breaking an anodized layer of a solar panel frame. The deformable toothed washer is capable of deforming to avoid obstructing proper contact between the mid clamp and the solar panel frame.

Abstract: A clamping system and method for allowing one-handed operation of a target clamp is described. The clamp may also be designed to be concealed and/or behind a structure such that portions of the clamp are not exposed to projectiles, thus protecting the clamp from sustaining damage.

Abstract: A surgical connection device for a spine is disclosed including a stabilization member, compression arms and traction arms, the device being used in conjunction with first anchor points fixed to vertebrae at a first lateral side of the spine and second anchor points fixed to vertebrae at a second lateral side of the spine. A first spinal rod may be attached to the first anchor points and a second spinal rod may be attached to the second anchor points. The compression arms connect the stabilization member to the first and second anchor points or rods and bear compressive forces. The traction arms connect the stabilization member to the first and o second anchor points or rods and bear tensile forces. Application of both tensile and compressive forces via the device may serve to straighten, change a direction of bending or increase a degree of bending of the rods and/or spine. The use of the traction arms may also provide for a more flexible construct.

Abstract: An access hood assembly for a conveyor cover is provided. The access hood assembly embodies a cammed lock assembly at each corner, for easier and safer opening, with no tools required, wherein each cammed lock assembly can act to lock the hood or as a pivot point to pivot about to an open position, when the hood is opened from the opposing side, where the associated cammed lock assemblies have been moved to an unlocked position. The arcuate hood of the access hood assembly supports multiple connection points for each cammed lock assembly to engaged in a locked position for securely keeping the access hood propped open when desired.

Abstract: A curtain pull comprises inner and outer surfaces, and first and second leaves each rotatably connected to the other along an edge by a connector. The first leaf comprises a first portion of the inner surface and a first portion of the outer surface and the second leaf comprises a second portion of the inner surface and a second portion of the outer surface. The curtain pull transforms by folding at the connector from an open state wherein the first and second portions of the inner surface are relatively rotated on the connector at a non-zero angle to a closed state wherein the first and second portions of the inner surface are opposed.

Abstract: Systems, devices and methods related to spinal stabilization are provided. A system can comprise a plurality of cross-links. Each of the cross-links can include a central rod holder that extends substantially along a mid-line of the spine and a pair of extension members extending from the central rod holder. The extension members can be secured to a vertebral body via a fixation device, such as a spinal screw or a hook member having serrations and/or side-cuts. One or more rod members can be extended across the central rod holders of the cross-links, thereby forming a stable spinal stabilization system providing bilateral stress distribution across different levels of the spine.

Abstract: The present invention describe a substrate handling system that exerts no or controllable external forces to hold substrates, does not contact front or back of the substrates, has minimum contact with side edge area of the substrate, can hold one or two substrate to each position, can be positioned in any orientation, and can be easily handled by human or robots. In the case that no deposition materials is desirable on the edge or sides of substrate, a self-aligned mask that can be attached to the substrate carrier is presented.

Abstract: A sealing arrangement for garments to sealingly connect an annular layer and a wearable layer to the sealing arrangement includes a sealing device and a reinforcement clip. The sealing device includes an annular sealing body and an annular base having inner and outer annular wall portions at least partly defining a recess in the annular base. The sealing device includes an annular sealing surface for sealingly connecting the annular layer to the annular base, and the annular sealing body is adapted to be locked into the recess to sealingly connect the wearable layer between the annular base and the annular sealing body. The reinforcement clip includes a sealing device locking portion arranged to be locked to the annular base, and a counteracting portion configured to, in use, counteract a relative movement of the outer and inner annular wall portions.

Abstract: A concrete form system includes a plurality of concrete form board brackets. The plurality of brackets includes brackets for securing the concrete form board to a conventional type metal or wood concrete form stake without the need for nails. The plurality of brackets also includes concrete form board end brackets for securing the ends of adjacent concrete form boards together that allows for a range of angles to be formed between two adjacent concrete form boards from zero degrees to more than 180 degrees. The present invention also includes flexible sections of concrete forms configured to be coupled to the brackets that allow for forming curved concrete edges.

Abstract: A reduced or low-profile mechanical clip is described. This mechanical clip may include a trench that constrains the mechanical degrees of freedom of wires, such as those between an interface circuit and an antenna in an electronic device. Moreover, the mechanical clip may have a low height (such as less than 3 mm) so it can fit in a confined space between components in the interior of the electronic device. The mechanical clip may be mountable on a surface in the interior of the electronic device, such as on a printed circuit board or on an inner surface of a chassis or external housing of the electronic device.

Abstract: A wall panel (20, 30) suitable for bathrooms, wetrooms and the like is disclosed. The panel is water impervious and comprises a core of wood plastics composite (WPC) and a laminate adhesively attached to the core. In preferred embodiments, the core is a wood plastics composite foamed board. The wood plastics composite preferably comprises PVC and wood fiber. The wood plastics composite may include recycled materials. The wall panel may be provided with a tongue-and-groove interlocking system with tongue and groove edges (21, 31 and 32). The system is configured to provide a contact area across less than the thickness of the panel which achieves a tight join at the front face and eliminates a visible gap. It also increases tolerance for machining errors or variation. The tongue-and-groove interlocking system is designed to provide tolerance for walls which are not precisely planar but may be bowed or uneven to a certain extent.

Abstract: A surgical connection device for a spine is disclosed including a stabilization member, compression arms and traction arms, the device being used in conjunction with first anchor points fixed to vertebrae at a first lateral side of the spine and second anchor points fixed to vertebrae at a second lateral side of the spine. A first spinal rod may be attached to the first anchor points and a second spinal rod may be attached to the second anchor points. The compression arms connect the stabilization member to the first and second anchor points or rods and bear compressive forces. The traction arms connect the stabilization member to the first and second anchor points or rods and bear tensile forces. Application of both tensile and compressive forces via the device may serve to straighten, change a direction of bending or increase a degree of bending of the rods and/or spine. The use of the traction arms may also provide for a more flexible construct.

Abstract: A cover opening device of an electric sunshade for a side window is provided for connecting between a base and a protecting cover of the electric sunshade and connecting with a curtain support rod. The cover opening device operates by the curtain support rod mounted with a driving element passing through a pedestal, a linkage rod part connected with an abutted part connecting with the protecting cover to move the abutted part downward by a press of the driving element and to pivot the protecting cover for covering a groove by the linkage rod part, and an elastic element providing resilience force for opening the protecting cover. The cover opening device has a mechanism that opens the protecting cover beforehand and closes the protecting cover afterwards, thereby preventing the curtain from colliding with the protecting cover when the curtain is extending out and rolling up.

Abstract: A clean toggle clamp is configured to operate without creating excessive debris. The clean toggle clamp includes a base; an arm rotationally coupled to the base via a first bearing isolated rod; a clamping element; a handle is rotationally coupled to the arm via a second bearing isolated rod. The handle includes a revolving latching pin and a linkage rotationally coupled on a first end to the handle via at least one third bearing isolated rod and on a second end to the base via a fourth bearing isolated rod. The toggle clamp includes a secondary latch rotationally coupled to the base and configured to engage the revolving latching pin to inhibit movement of the handle and arm. The handle, arm, linkage and secondary latch are configured to rotate without a frictional sliding of any of surface of the arm, the handle, the linkage or the base.

Abstract: A form assembly for installation of paving materials has elongated form sections, each having a first side wall facing the paving material and an opposite second side wall that has a first longitudinal channel defined between brackets. A number of connector elements join adjacent elongated form sections. Anchor mounting elements have a first coupling member configured to fit into the first longitudinal channel of the form section and a second coupling member configured for coupling to a mounting anchor. Each of the elongated form sections has an upper screed contact surface orthogonal to the first side wall and wherein a first wall thickness between first and second side walls that is between the upper screed contact surface and the first longitudinal channel exceeds a second wall thickness of the form section that is between the first longitudinal channel and a base that is opposite the upper screed contact surface.

Abstract: The ultrasonic-transducer mounting structure includes: a housing including: a body part which is formed into a hollow cylindrical shape and is provided at its front surface with a transmission surface allowing an ultrasonic wave to pass therethrough and is designed to accommodate an ultrasonic transducer therein; and plural connection pieces provided to a side surface of the body part; and a holder fixed to a rear surface of a bumper and designed to hold the housing such that the transmission surface of the housing is exposed via an opening of the bumper. The holder includes plural reception pieces to which the plural connection pieces are detachably coupled respectively. The plural reception pieces are fixed to the rear surface of the bumper to surround the opening.

Abstract: A painting support system that includes a painting support board for holding artist's panels or canvases that is colored to mimic the frame for the finished painting. A reference line grid is scribed on the painting support board more accurately draw and observe straight lines. A continuous loop strip of a hook and loop system placed on all four sides of the support board. A mahl stick with a hook patch of the hook and loop system placed on a tip of the mahl stick allows the artist to attach the mahl stick anywhere on the support board to the loop strip to steady and support the hand while painting.

Abstract: An animal chair perch including a perch having a top side, a bottom side, a right side and a left side. A first receiving bracket is disposed on the bottom side of the perch proximal the right side. An identical second receiving bracket is disposed on the bottom side of the perch proximal the left side. The second receiving bracket is in a position parallel to the first receiving bracket. A first support clamp and an identical second support clamp having a closed top end, an open bottom end, a first leg and a second leg. Each leg is disposed between the top and bottom ends. Each of the first and second support clamp top ends sldingly engage the respective first and second receiving bracket. Each leg securingly removably engages a chair back.

Abstract: A clip for facilitating installation of foam insulation boards in a building structure. The clip comprises a body, a spacer and a foot for holding the insulation board, and a connection region for attachment of the clip to a building structural member. The clip is designed to ensure proper ventilation and greatly easy the proper installation of rigid foam insulation.

Abstract: An ornamental hanger having a scroll shape with an upper open loop that is sufficiently large to accommodate an edge of a mantle therein. The hanger includes a lower open loop from which an item can be hung so that the lower open loop can swing under the edge of the mantle and be located generally under the upper open loop. The upper open loop terminates in a partial loop having a bottom curved surface for resting on the mantle. The lower curved portion of the partial loop is covered with a non-slip material to prevent movement of the hanger on the mantel surface.

Abstract: According to one embodiment, a support device configured to support an electronic device. The electronic device includes a first face and a second face including a recessed portion or a projecting portion. The support device includes a first member and a second member. The first member is configured to support the electronic device. The second member is configured to be movable between a first position and a second position, the first position being a position at which the second member is engaged with the recessed portion or the projecting portion to suppress moving of the electronic device, the second position being a position at which the second member is configured to be separated further from the second face and at which the electronic device is configured to be permitted to move.

Abstract: An exterior vehicle mirror assembly including an housing with a mirror glass disposed in the housing. A glass clamp connects the mirror glass and the housing. The glass clamp is slidably carried on both the mirror glass and the housing for moving between a locked position in which the glass clamp secures the mirror glass to the housing in a friction fit arrangement to resist movement of the mirror glass in the housing, and an unlocked position in which the clamp is free to be removed from the housing and mirror glass.

Abstract: A fastener for a machine frame is disclosed. The fastener may comprise a seat portion and a back portion oriented to extend from the seat portion. The back portion may define an aperture therethrough. The fastener may also include a clip having a first side and a second side. The first side may define a window and the second side may include a flange that defines a port therethrough. The back portion may be sandwiched between the first and second sides of the clip and the window and port may each be generally aligned with the aperture. A machine cab having a fastener and a clip is also disclosed.

Abstract: The inventive concept is a device which is used to secure a sheath or stack of papers contained in an architectural sheet rack clamp. The device is essentially a three-tiered rectangular structure forming two parallel, length-wise channels within the spaces defined by the three tiers. One channel, situated as the upper clamp retaining channel, is structured so as to securely accommodate the typical sheet clamp used to store such materials as architectural drawings, maps, and other similar over-sized sheets. The second, or lower desk anchoring, channel of the device, contains two adjustable fastening means, enabling attachment of the lower desk anchoring channel to a desk, draftsman's stand, or table.

Abstract: The invention disclosed herein generally relates to an improved clamp assembly for attaching two or more objects, such as furniture, tables, desks, dividers or other panel elements together of variable thicknesses. The elements of the clamp assembly invention generally include a clamp body with a clamp stop and clamp spine, a cross-dowel, an actuating screw and a clamp lever. The clamp assembly imparts a compressive clamping force by utilizing a fulcrum-lever arrangement whereby the clamp lever is moved in an arcuate trajectory by rotating the actuating screw in the desired direction as the clamp lever pivots about a fulcrum point. This allows the user to easily place and connect various objects, such as tables, desks, courtesy and privacy panels and another desired object that the user desires to secure in a desired arrangement by imparting a compressive force to the panel element that is to be connected to another panel element.

Abstract: An attachment for the edge of an extending brim of a baseball type cap or visor is disclosed which is mounted on the edge of the extending brim to protect or repair the edge. The attachment easily mounts on the brim of a cap or visor and remains securely thereon. The brim is inserted into a slot through the side and along the full length of the attachment. The slot has flared edges that permit the attachment to be easily attached to the brim edge. As the edge attachment is mounted on the edge of a cap or visor the flared edges are deformed outward creating a spring force that firmly holds the edge attachment on the brim. The edge attachment may have an extension that extends over the top of a brim to provide additional space for the display of words, graphics, etc. that are larger than can be displayed on the much narrower front or top edge of the attachment.

Abstract: A gift bag band includes an elongated body portion including a first end and a second end, a first fastener on the first end, and a complementary second fastener on the second end for releasably engaging the first fastener. The band further includes a flap cut out from the elongated body portion, wherein the flap has an aperture dimensioned to receive a display hook. The band includes at least one upper fold and at least one lower fold. The upper and lower folds segment the elongated body portion into a front segment, an upper back segment, and a lower back segment. The front segment lies in a first plane, and the upper and lower back segments lie on a second plane substantially parallel to the first plane. The flap is cut from the second plane and lies on the first plane.

Abstract: A push-on clip fastener for securing two components together, such as interior automotive components. The push-on clip fastener includes a housing, a cover and a spring. The housing may include an aperture, wherein the housing may be capable of being located over a stud to secure an interior automotive component there between. The cover may include a pair of legs, wherein the cover may be insertable into the housing. The legs may be inserted into the housing cause the spring to straighten. The spring may include a slot, wherein the slot may be aligned with the aperture in the housing. The straightening of the spring may cause a clamp load. The housing may also include projections located on each side of the housing. The cover may also include retaining features located on each side of the cover that may be engageable with the housing projections to secure the fastener together.

Abstract: Flexible straps for a carrier include a strap body having a top, bottom, two lateral and two end surfaces. The strap body has a lengthwise axis, a widthwise axis and a thickness axis. At least one aperture can extend through the strap body from the top to the bottom surface and can be space apart from each other along the lengthwise axis by a spacer portion. The flexible strap includes a spacer cross-sectional area defined by an area of a cross-section of the spacer portion cut by a plane oriented orthogonally to the lengthwise axis. The flexible strap includes an aperture cross-sectional area defined by an area of a cross-section taken at a widthwise widest point of at least one of the apertures cut by a plane oriented orthogonally to the lengthwise axis. The aperture cross-sectional area is greater than at least two-thirds of the spacer cross-sectional area.

Abstract: A fastener for a machine frame is disclosed. The fastener may comprise a seat portion, at least one arm extending from the seat portion, and a back portion oriented to extend from the seat portion. The back portion may define an aperture therethrough. The fastener may also include a clip having a first side and a second side. The first side may define a window and the second side may include a flange that defines a port therethrough. The back portion may be sandwiched between the first and second sides of the clip and the window and port may each be generally aligned with the aperture.

Abstract: A clip having a main clip body that is made of resin and has a shape in front view that is closed at one end and open at the other end. The main clip body has engaging arms and holding members positioned to the inside of the engaging arms. The engaging arms are configured so as to be elastically deformed when the main clip body passes through an installing hole of a partner panel and to engage with a rim of the hole when the engaging arms have been inserted. The holding members are configured so as to keep the main clip body fitted onto the clip seat of the mounted member. The engaging arms and the holding members are connected to assume a substantially diamond-shaped loop in front view, and are configured so that the positions thereof differ in side view, and overlap in front view, when elastically deformed.

Abstract: An anchor point apparatus is disclosed having a substantially cylindrical cavity extending along a longitudinal axis of a slotted tube; a tabbed bearing plate including a first attachment tab and a second attachment tab, the attachment tabs extending at predetermined angles from the tabbed bearing plate, the tabbed bearing plate generally conforming to a portion of an outer surface of the slotted tube; at least one circumferential clamp disposed about the slotted tube; and an attachment link having a first attachment ear secured within a first opening in the first attachment tab and a second attachment ear secured within a second opening in the second attachment tab.

Abstract: A clip includes a cylindrical body having insertion space into which one of different diameters of rod members is insertable, a pair of locking claws formed to face each other in a first direction and configured to lock the rod member inserted into the insertion space, and an inner wall configured to be deformable in a second direction which is substantially at right angles to the first direction. The inner wall deforms in the second direction upon receiving a rod member having a largest diameter among all of the attaching target rod members.

Abstract: A heat sink for cooling a device mounted on a mount board, the heat sink having a plurality of grooves at different heights in a surface opposite a surface in contact with the device.

Abstract: A cover-material fixing clip includes: a chuck that pinches a locking hem formed on a back surface of a cover material; a hook that locks a wire provided in a groove of a cushion material; and a guide lever that is provided facing an opening of the hook. A proximal end of the hook is connected to a bottom of the chuck opposite to the cover material. The guide lever is connected to a side surface of the chuck.

Abstract: Disclosed is clasp including a protrusion portion with a protrusion, a receiving portion defining a receiving cavity configured to receive the protrusion portion, wherein the protrusion is securable in the cavity via frictional fitting of the protrusion into the cavity, the frictional fitting of the protrusion into the cavity creating a secure association between the receiving portion and the protrusion portion, wherein the receiving portion includes a first arm and a second arm extending from a receiving portion base, the first arm including a first arcuate recess and the second arm including a second arcuate recess opposing the first arcuate recess, the first arcuate recess and the second arcuate recess defining an adjustable width of the cavity.

Abstract: The invention relates to a stock mounting device for fixing a stock on a receiver of a small arm that includes a clamping pin, and a clamping cam cooperating with the clamping pin, by which the shank can be mounted on the receiver by generating an axial force.

Abstract: The present invention is directed to a support channel assembly that secures and supports a bundle. The support channel assembly includes a support channel having a bottom and two sides and at least one flange. Each side of the support channel having a hook at a distal end. The flange has a top, a bottom and sides. The flange includes a locking tie receiving area for receiving a locking tie to secure the bundle and a support channel engaging area for receiving the hooks of the support channel to secure the flange to the support channel.

Abstract: The present invention relates to a locking device for a pole, including: a grasping tube having incision portions; operating pins adapted to be inserted in an up and down direction into upper and lower pressing parts; and an axial lever having a pressing plate extended in the lengthwise direction of the pole.

Abstract: A solar device includes a frame, a solar cell module, an inverter and a fastener mechanism. The frame has a first edge and a second edge opposite to the first edge. The solar cell module is disposed in the frame. The fastener mechanism is used for fastening the frame. The fastener mechanism includes a base and a fastener member. The inverter is fixed on the base. A first end of the fastener member is pivotally connected to the base and a second end of the fastener member has a first extending portion, wherein the first end is opposite to the second end. The first extending portion has a protruding structure. When the first edge of the frame is disposed on the base, the fastener member can be rotated with respect to the base so as to engage the protruding structure with the second edge of the frame.