Abstract: A combination rolling cabinet and storage assembly for storing and transporting collectibles therein, having: a top and bottom compartment; top and bottom walls joined by opposed side walls all joined to an upright rear wall, the cabinet defining an interior compartment accessible through an open upright front side of the door between open and closed positions; a base cabinet including wheels and a retractable/extendible pulling handle for locomoting; at least one additional cabinet connectable on top of the base cabinet; upper storage apparatus connectable on top of the base cabinet; a plurality of removable tote tray drawers or containers, and light holder carried in trunklike housing between top compartment and bottom compartment; can be loaded or unloaded upright or laying on floor or flat surface; and components are made of any suitable materials, preferably plastic.

Abstract: A firework launching platform apparatus includes a panel that has a top side, a bottom side and a peripheral edge. The panel has a plurality of apertures therein extending into the top side and outwardly of the bottom side. The apertures receive a body of a firework to support the firework in an upright manner. The apertures include primary apertures and secondary apertures. Each of the primary apertures is positioned adjacent to the peripheral edge of the panel. A plurality of channels is positioned in the bottom side of the panel. The channels each extend through the peripheral edge and into one of the primary apertures. Each of the primary apertures is linked by at least one of the channels to the peripheral edge.

Abstract: A display substrate accommodating tray includes a bottom section for mounting a display substrate thereon in a substantially horizontal fashion; and a frame for surrounding at least a part of the display substrate when the display substrate is mounted on the bottom section. A plurality of openings are formed in the bottom section through which a plurality of supporting members are to be inserted for, when the display substrate is mounted on the bottom section, raising the mounted display substrate above the bottom section.

Abstract: A paint brush container (10) is disclosed which includes has a base (11) and a lid (12) pivotally coupled to the base through an elongated hinge (13). The base has a bottom wall (15) with a linear array of first mounting holes (22) and second mounting holes (23). The base also includes a brush handle holder (24) and two laterally spaced, removably mounted restricting walls (26) which include a pair of mounting posts (27) configured to be releaseable received within the first and second mounting holes (22) and (23). The brush container also includes a pair of latches (41) which enable the lid to be releaseably held to base.

Abstract: A consumer product package having a tub with a base and a perimeter wall defining a cavity in communication with an opening that extends through the perimeter wall. A consumer product is disposed within the cavity and a stabilizing insert is at least partially disposed within the cavity. The stabilizing insert has a retaining member removably secured the consumer product and a support member with a foot extending through the opening of the perimeter wall to facilitate positioning the tub in a substantially upright position.

Abstract: A method and apparatus for arranging, transporting, and/or serving food is provided to improve various aspects of food catering. A food handling apparatus includes a base platter having a predefined pattern of food location indicators thereon. Food elements are arranged on the base platter according to the predefined pattern. The apparatus includes food cell members configured to cover the food elements, maintain a separation of the food elements one from another, and protect the food elements from damage. The apparatus includes a lid positioned over the food cell members and attached to the base platter. At a serving location, the food cell members are uncovered from the food cell members, thereby revealing the food elements in the predefined pattern without additional handling of the food elements. The food elements can therefore be efficiently transferred through a food catering logistics chain while maintaining quality and appearance, and reducing contamination and illness.

Abstract: A stackable food and beverage service tray includes a substantially planar tray bottom and a sloping side wall extending upwardly and outwardly from an inner peripheral edge of the tray bottom so as to surround said tray bottom. The tray bottom has an upper floor surface and an underside surface. The tray's sloping side wall has an inner surface and an outer surface with the side wall's outer surface adjoining the tray's underside surface at a peripheral bottom edge of the tray. A raised rib is provided on the inner surface of the sloping side wall. Feet are also provided on the tray's underside surface along the bottom edge of the tray. The tray's raised rib and feet cooperate to define a space between stacked trays through which air can flow to facilitate drying of the stacked trays after they have been washed.

Abstract: A toddler food tray assembly includes a panel that has a top side, a bottom side and a perimeter edge. The panel has a plurality of apertures therein extending through the top and bottom sides. The perimeter edge has a front edge. A plurality of sleeves is provided. Each of the sleeves has a closed lower end and an upper edge defining an access opening. Each of the apertures has a peripheral edge that is attached to and coextensive with one of the upper edges of the sleeves. The sleeves each extend downwardly from the panel. A plurality of food supporting members is provided. Each of the food holding supporting members has a bottom wall and a peripheral wall that is attached to and extends upwardly from the bottom wall. Each of the bottom walls includes a mount that is extendable into one of the sleeves.

Abstract: A reed case includes a base, a lid carried by the base and a reed-carrying insert provided in the base. The reed-carrying base includes a plurality of generally elongated, parallel, spaced-apart insert slots; at least one extension spring provided in each of the insert slots; and at least one retainer spring provided in each of the insert slots.

Abstract: According to one embodiment, a hybrid mounting card is disclosed that includes one or more receptacles adapted to receive a portion of a medical device and secure the portion of the medical device therein and a mounting card adapted to receive and secure the one or more receptacles. The one or more receptacles are configured on the mounting card to secure the medical device to the mounting card in a defined configuration. The use of the receptacles increases the types of medical devices that can be secured to mounting cards. The use of mounting cards enables medical devices to be stored in sterile barrier packaging systems that do not require custom thermoforming of an entire medical tray, such as medical pouches and standard blank medical trays. Other embodiments are disclosed herein.

Abstract: A foldable pot cover provides a foldable die cut pattern which can be imprinted on its exterior surfaces with any of a number of designs. The pot cover is formed from a die cut pattern which can be folded into overlapping flaps and tabs which are folded and interlocked to define a generally trapezoidal pot cover which can receive a variety of different pot sizes and types and resists moisture. The die cut pattern forming the pot cover can be of a universal shape but formed in a variety of different sizes to accommodate different sized potted plants.

Abstract: A packaging system for transporting vials containing biological samples may comprise a first tray defining at least one first tray cavity; and a second tray defining at least one second tray cavity and configured to mate with the first tray. The packaging system may further comprise at least one first tray cavity and at least one second tray cavity, wherein the at least one first tray cavity and the at least one second tray cavity are configured to securely hold respective vials for transport, and to restrain caps on the respective vials during transport, wherein the at least one first tray cavity and the at least one second tray cavity oppose each other when the first tray and the second tray are mated together. The packaging system may also be configured to permit barcode scanning of vials held within the first tray cavity and the second tray cavity.

Abstract: This invention is directed toward an airtight, refrigerated cosmetics handbag that can be used as a stand alone product or inserted into other, larger handbags. The handbag has a pocket in the top panel into which frozen gel packs can be inserted, so that heat-sensitive cosmetics are cooled from the top. The exterior of the handbag is constructed of heat-shielding and/or heat reflective materials. The inside of the handbag additionally comprises means by which the cosmetics can be retained in a safe but compact form, and, optionally, a bi-directionally modifiable valve through which excess air can be removed subsequent to the cosmetics being placed in the handbag. The handbag can be manufactured in a variety of sizes and shapes, and, preferentially, from recycled materials.

Abstract: Packaging comprising a base having an interior space for receiving an item, wherein the base includes a bottom surface and one or more side surfaces; a ledge formed along a side surface; and a holder supported by the ledge, wherein the holder includes a retaining mechanism for retaining the item.

Abstract: A food tray assembly includes a serving platter and a receptacle platter. The serving platter has a central aperture extending there through and a serving area defined between the central aperture and a perimeter thereof. The receptacle platter has a bottom and a peripheral wall extending from the bottom at a perimeter thereof. The serving platter and the receptacle platter are releasably coupled to one another.

Abstract: A process carrier is capable of supporting printed circuit boards during manufacturing and testing. The process carrier includes a base plate, a first top plate and a second top plate. The base plate has an upper surface including a recessed area sized to receive a panelized group of printed circuit board substrates and a lower surface. The first top plate is coupleable to the upper surface of the base plate during a first manufacturing process. The first top plate includes a plurality of connected rails configured to secure the panelized group of printed circuit board substrates. The second top plate is coupleable to the upper surface of the base plate during a second manufacturing process. The second top plate is configured to cover the panelized group of printed circuit board substrates.

Abstract: A container for use in processing a biopsy sample. Biopsy sample and materials are received within a sample processing area of the container. A semi-permeable barrier is positioned at a downstream portion of the sample processing area and prevents the prevent passage of the biopsy sample. A cap is positioned at the downstream side of the barrier, and holds fluids within the container.

Abstract: A pharmaceutical sample storage system in which the accommodation volume of a case is increased is disclosed and claimed. The molding of the storage rack is easy. The cases in the storage rack are locked in place and will not fall out even if the storage rack is turned upside down. Placing and removing cases from the storage rack is highly accurate. The sample storage system is sealed and the storage rack vertically accommodates a plurality of cases in a matrix. The cases are rectangular in cross-section and are hollow. The cases are tapered toward the bottom portion of the case and the outer surfaces of the cases are chamfered. The storage rack has a lower grate-shaped bottom portion which is partitioned by cross members. The bottom portion of the case being fitted into one partitioned portion of the grate-shaped bottom portion and has case supporting pins vertically provided upward from each intersection of gratings or cross members of the grated bottom portion.

Abstract: A tray system for retaining items on a tray and preventing items from falling onto a surface comprises a tray and at least one cord attached thereto. Engagement features at the end of the cord that is distal to the tray may securely attach to a toy, a food item, an item of dishware, drinkware, or flatware, or any other small item. The cord is preferably of a length such that attached items cannot reach the floor if they are dislodged from the tray and otherwise short enough so as not to be a safety hazard. The system further comprises fasteners disposed on an underside of the tray, for retaining the tray in a position or to a larger item, and fasteners on a topside of the tray, for securing items to the surface of the tray. The surface of the tray may also have a plurality of compartments thereon.

Abstract: A catheter anchoring system is provided to securely anchor to a patient's skin a catheter and fluid supply tube interconnection. The anchoring system comprises a retainer configured to receive a catheter adaptor in a variety of positions. The adaptor interconnects the catheter and the fluid supply tube. In one embodiment the adaptor has a radial recess that circumscribes the adaptor. The anchoring system additionally includes a flexible, adhesive anchor pad which can supports a tube clip, as well as the retainer. The retainer includes a channel that is configured to receive the adaptor in a snap-fit manner. The retainer also includes a plurality of laterally arranged projections that extend from a channel wall and into a channel. Each radial recess is sized to receive and to capture at least a portion of the projection of the retainer so as to inhibit the adaptor from moving within the channel.

Abstract: A thermoformed dispensing container comprises a plastic tray with a dispensing cavity having side walls that include a circular radial side wall portion with a gap, and a disc-shaped thermoformed plastic lid positioned for rotation within the circular radial side wall portion of the tray, the lid having side walls that include a door. The dispensing container can be placed in an open condition by rotating the lid to align the door of the lid with the gap of the tray, or in a closed position by moving the door of the lid away from the gap of the tray.

Abstract: A foldable packaging which may include a liquid-resistant paperboard form that is foldable to provide an attractive stackable container that resists water leakage, can be assembled without fastening hardware and has concealed gussets. The packaging can be folded into overlapping flaps and wings which are folded and interlocked to define a generally trapezoidal packaging which can receive a variety of different pot sizes and types. The die cut pattern forming the packaging can be of a universal shape but formed in a variety of different sizes to accommodate different sized potted plants.

Abstract: A catheter anchoring system is provided to securely anchor to a patient's skin a catheter and fluid supply tube interconnection. The anchoring system comprises a retainer configured to receive a catheter adaptor in a variety of positions. The adaptor interconnects the catheter and the fluid supply tube. In one embodiment the adaptor has a radial recess that circumscribes the adaptor. The anchoring system additionally includes a flexible, adhesive anchor pad which can supports a tube clip, as well as the retainer. The retainer includes a channel that is configured to receive the adaptor in a snap-fit manner. The retainer also includes a plurality of laterally arranged projections that extend from a channel wall and into a channel. Each radial recess is sized to receive and to capture at least a portion of the projection of the retainer so as to inhibit the adaptor from moving within the channel.

Abstract: A device holder and storage compartment for use in a motor vehicle. The device holder and storage compartment are in the form of a slidable drawer that is concealed within a dashboard when in a closed position and extended from the dashboard when in an open position. The drawer has a generally horizontal bottom surface, a front end wall, a back end wall oppositely disposed from the front end wall, a first side wall and a second side wall adjoining the front end wall and the back end wall. All the walls are generally vertical in orientation. The drawer also has a generally vertical dividing wall spaced apart from the front end wall. The dividing wall defines a front region between the dividing wall and the front end wall and a rear region between the dividing wall and the back end wall. A front cover can be moveably attached to the drawer proximate the front end wall and move between a closed position and an open position.

Abstract: Disclosed is a storage apparatus for storing a plurality of baby bottles. Each of the plurality of baby bottles includes a bottle body and a set of components. The storage apparatus includes a first assembly. The first assembly includes a first compartment, and at least one tray removably configured within the first compartment. The at least one tray includes a plurality of receptacles capable of receiving and retaining the bottle body of the each of the plurality of baby bottles. Further, the storage apparatus includes a second assembly. The second assembly includes a support frame detachably configured to the first assembly, and a removable second compartment slidably coupled to the support frame. The removable second compartment is capable of storing the set of components of the each of the plurality of baby bottles.

Abstract: A low depth tray for bottles is provided which includes a first pair of opposed walls, a second pair of opposed walls attached to the first pair of opposed walls to form a wall structure, and a base attached to the wall structure. At least one interior column projects upwardly within the wall structure, where the interior column has a height less than the height of bottles loaded in the tray. A plurality of interior divider walls of double-walled construction project upwardly from the base and extend between the one or more interior columns and the wall structure. Together, the divider walls, interior columns, base, and outer wall structure define a plurality of bottle retaining pockets, where each pocket includes at least one divider wall and is sized to receive a single bottle therein.

Abstract: An apparatus for the containment of food items and for the optional transport of various types of beverage containers includes a bottom panel, a first side panel, a second side panel, a third side panel, a fourth side panel, a first top panel, a second top panel, a third top panel, and a fourth top panel that are formed of a single sheet of stock and which, when folded along predetermined crease lines, cooperate to provide a serving tray for the retention of the food items in an interior portion and, if desired, a soda can or other beverage container or object in the interior portion and, if desired, a tapered beverage container can be secured to the apparatus at an exterior location. The apparatus is able to secure certain types of beverage containers thereto while still providing a covering over the food items that are disposed in the interior portion.

Abstract: Packaging (1) for transporting and handling large anti-friction bearings (15) is provided. The packaging (1) includes a lower part (2) and an upper part (3) that can be fitted over each other and define a region for receiving at least one large anti-friction bearing (15). An outer envelope surface of the large anti-friction bearing (15) is surrounded by a holding element (12) that can be fixed to a plurality of spaced-apart peripheral points. The position of the holding element (12) detachably connected to the lower part (2) can be modified such that the distance of the holding element in relation to a central point of the packaging (1) can be increased or decreased. The packaging (1) is advantageous in that different positioning of the holding element(s) (12) enables large anti-friction bearings (15) with different diameters to be received therein.

Abstract: A container having a product cavity formed by a bottom panel, front and back panels and end panels extending upwardly from the bottom panel. The front and back panels, a receptacle platform and a pair of support panels for the platform extend outwardly from at least one end wall. The receptacle platform has a receptacle aperture. A cover panel can overlie the product cavity and the platform and may have an aperture above the platform aperture.

Abstract: A device (1) packages a stack of sheet objects such as banknotes (2) in a container (4) sandwiched between a frame (6) and the device's main body (5). Banknotes are fed through a first input port (3) to be stacked in the container. A closure member (9) is inserted through a second input port (10) and heat-sealed onto the container (4) when full. The container (4) is integrally moulded in a plastics material with inwardly hinged wings (19,20) that act as guide rails (23) for banknotes as they are fed towards opening (11) of the container by a drive mechanism the packaging device. The wings have castellations (24) that act as a stop to hold edges of banknotes (29) in stacked in the container by the drive mechanism. A printer (51) prints data concerning the stacked banknotes on the underside of the closure member (9). The packaged container is opened by a device that compresses it so that the closure member (9) bursts along a line of weakness (53).

Abstract: An apparatus for packing containers includes a generally rectangular pallet adapter comprising rows and columns of cups, the rows and columns of cups being substantially orthogonal to each other, each cup comprising a lower portion that is generally circular and an upper portion that is generally rectangular, the pallet adapter including side walls located on its perimeter, the side walls extending upward beyond the cups; and a detonation barrier disposed on the pallet adapter, the detonation barrier the detonation barrier comprising internal row partitions, internal column partitions, two end row partitions and two end column partitions, the internal row partitions and end row partitions being substantially orthogonal to the internal column partitions and end column partitions thereby defining rows and columns of rectangular openings.

Abstract: A one-handed support for a plate and a beverage container includes horizontally oriented parallel upper and lower supports having a vertical hand-grippable connecting member attached therebetween. The lower support is adapted to rest on a planar support surface. The upper and lower supports each having approximately circular front and rear sections with a narrow connecting portion therebetween with the connecting member being anchored in the narrow connecting portions. The upper support is sized to hold a disposable plate and includes a clip to hold the plate in place. The rear sections each have an aperture therein defining annular grips sized to receive a beverage container. The support includes a removable beverage container holder which is adapted to hold stemware in an inverted position. An alternative embodiment includes a rotatable stemware holder attached to the upper support and a rotatable auxiliary plate support.

Abstract: A tray system, comprising one or more retaining portions for a food container, the one or more retaining portions receiving and securely holding fitted non-slip inserts. The tray system includes one or more feet which are of a depth at least equal to deepest recessed retaining portion of the tray. The feet may allow the tray to sit stably on a flat surface. The tray may have a non-slip removable insert inserted into the retaining portion which may be fitted to the bottom of the retaining portion and may maintain grip on serving tray and food container.

Abstract: A packaging assembly for transporting, storing and displaying containers includes a merchandising feature that facilitates moving containers toward a display opening of the tray as the front container is removed by a customer.

Abstract: A tray for holding multiple baby food, baby food jars, containers, plates, bowls and cups designed to be held with one hand by inserting the thumb of a user through a centrally located hole in the tray and using the remaining fingers on the bottom of the tray as support.

Abstract: There is provided a travel shower case including a tray. The tray includes a lip on one side of the tray. A cover is pivotally coupled to the tray. A lock member is slidingly coupled to the cover. The lock member is movable from a first position to a second position. The lock member includes a catch portion configured to engage the lip of the tray when the lock member is in the first position. The lock member includes a hook portion operative when the lock member is in the second position, wherein the hook portion will support the tray.

Abstract: A tray system, comprising one or more retaining portions for a food container, the one or more retaining portions receiving and securely holding fitted non-slip inserts. The tray system includes one or more feet which are of a depth at least equal to deepest recessed retaining portion of the tray. The feet may allow the tray to sit stably on a flat surface. The tray may have a non-slip removable insert inserted into the retaining portion which may be fitted to the bottom of the retaining portion and may maintain grip on serving tray and food container.

Abstract: A serving container cover comprising one or more side walls, a top wall and an opening in the top wall. The serving container is preferably tapered, narrowing from the base portion to the top portion, so that the covers can be nested in a stacked arrangement. A rest is preferably incorporated into the serving container cover to support one or more serving utensils. The serving container cover also preferably includes a decorative graphic on at least a portion of the side walls and top wall.

Abstract: A transport container (40) for slides (4) for immunological labeling of thin tissue sections (2a) is disclosed. The transport container (40) is embodied in the form of a trough which comprises a peripheral delimiting wall (49) that is closed off by a base (50). There is embodied in the interior of the trough on the delimiting wall (49) at least one peripheral step (57) on which the slide rests and is spaced away from the base (50) of the transport container (40).

Abstract: The present invention relates to thread storage and dispensing systems which allow thread to be stored and used while positioned in the same location. A thread caddy of the present invention includes one or more drawers that can be opened and closed, and can move from a retracted storage position to an expanded usage position. The drawers can include a thread tray that has locations for positioning multiple spools of thread. A positioning system may also be included to reorient the thread tray between multiple orientations. In a first orientation, the tray may be retracted so that a drawer can be moved to its closed position. In a second orientation, the drawer may be expanded so that the drawer cannot be closed. The positioning system may also be retractable within the drawer. A retractable feed guide can also be included which can feed multiple threads simultaneously.

Abstract: A serving tray includes an aperture extending there through and a serving area, whereby food waste may be received through the aperture into a holding area of the serving tray pending disposal.

Abstract: A tray to place small parts (8,9) the parts each having a through hole (15) which makes the parts adapted to be spiked on a rod (7) for further processing or transportation. The tray (10) includes a top side; a bottom side; and support means (12) to receive the parts (8,9). The support means (12) are formed or arranged such that parts (8,9) can be placed in at least one row with the through holes (15) in a line of sight to allow simultaneous picking up of at least one row of parts by introducing the rod (7) from a side.

Abstract: A tray system, comprising one or more retaining portions for a food container, the one or more retaining portions receiving and securely holding fitted non-slip inserts. The tray system includes one or more feet which are of a depth at least equal to deepest recessed retaining portion of the tray. The feet may allow the tray to sit stably on a flat surface. The tray may have a non-slip removable insert inserted into the retaining portion which may be fitted to the bottom of the retaining portion and may maintain grip on serving tray and food container.

Abstract: A cupcake carrier for organizing and protecting cupcakes during storage and transit includes a container formed of a singled sheet of planar material and having flaps folded in assembly to form an upwardly opening cavity carrying an insert tray formed of a single sheet of planar material and having circular openings for lightly compressively holding the cupcakes in a grid array. The insert is sized smaller than the base of the container to provide slots about the periphery. The container includes a hinged lid having flaps that enter the slots in the closed position to reinforce the outer walls and prevent inner movement of the flaps during transit and storage.

Abstract: An apparatus for containing a food and beverage includes a substantially flat stock, for example, cardboard or fiberboard that is folded into a three-dimensional apparatus. When formed, the apparatus includes a first compartment for holding a food and a beverage extension section adapted for holding a beverage. Certain of the sections include panels that interlock. A reinforcing member is provided to add strength to the beverage extension portion. A pair of thumbholes are provided in two of the sections and a pair of slots are provided for securing a pair of eating utensils, for example, a fork and spoon. The unused thumbhole is adapted to receive a napkin.

Abstract: A tray device that serves as a shipping tray and an assembly fixture to align a fabricated tape assembly in the bonding of steel locating hinge washers to a hinge assembly to facilitate doors-off/door-on processing through an automotive trim shop. The adhesive bonding system cures during the cathodic electro-cost primer bake cycle. The adhesive maintains an intimate, positive contact with both metal surfaces ensuring adequate bonding performance and maximized bonding surface area during a defined heat or bake cycle.

Abstract: A container for a relatively brittle product, such as a haemostatic bandage, including a body and a lid for closing the container to hermetically seal the product therein. A sealing rim of the lid includes a layer of elastomeric material which sealingly engages with a sealing rim of the container body to provide a first, static, seal and a second, dynamic, seal. The elastomeric sealing material extends into the interior of the container beneath the lid to provide an elastomeric formation operative to engage an upper surface of the product within the container so as to apply a resilient bias thereto to hold a lower face of the product against the base of the container. The elastomeric formation thereby acts to inhibit substantial movement of the product within the container.

Abstract: A Christmas tree decoration organizer including a box having a bottom and upwardly extending opposing sides and end walls, terminating in a rim. A plurality of ornament hangers having opposing ends are removably coupled within the box, suspended above the bottom for receiving and supporting a plurality of hanging ornaments. A bulk storage space for storing outermost decorations of a Christmas tree is defined by the bottom, lower portions of the opposing sides and the end walls, and the plurality of ornament hangers. An ornament tray is positioned within the box and supported above the plurality of ornament hangers for receiving and holding a plurality of Christmas tree ornaments. A separator panel is removably positioned covering the ornament tray and defining a light compartment thereabove. A cover is removable placed over the rim, closing the box.

Abstract: A tool suspension plate has a base, at last one fastening device formed on the base, and a slat detachably mounted on the base to cross over the at least one fastening device and to secure at least one screwdriver on the base. Each fastening device has a clamping element adapted to clamp a part of a screwdriver and a supporting element adapted to support a handle of the screwdriver. Thereby, the screwdriver is firmly secured on the tool suspension plate. Furthermore, by in cooperation with the slat, the tool suspension plate has excellent thief-proof, displaying and retaining effects.

Abstract: A first construction of a tray for electronic parts according to the present invention is provided with an engaging cut-out corner portion which is formed by cutting a corner portion of a table-like flat portion which is arranged diagonally with respect to a-cut-out corner portion. A second construction of a tray for electronic parts according to the present invention is provided with a pawl engaging protruding portion which is formed on a step-like peripheral edge portion above a cut-out portion. In a third construction of a tray for electronic parts according to the present invention, when two trays are stacked up so that the top faces thereof face each other, an engaging first-shaped protrusion which is formed around a predetermined pocket of one tray engages an engaging second-shaped protrusion which is formed around a predetermined pocket of the other tray.