Abstract: A container used for containing powders such as a washing powder and the like has bottom stopper means for fixedly supporting another container when another container is inserted into the container. When a lot of containers are stored before containing contents therein, many can be stacked on top of one another. With these containers, the space needed for storing can be reduced.

Abstract: A stackable device is disclosed comprising a cooking vessel with tapered sidewalls, lid halves and a handle, whereby the lid halves slidably mount to the cookware vessel and contain apertures for draining and pouring excess liquid therefrom, and whereby the lid halves contain locking channels which interlock and mate with stacking leg projections depending downwardly from the bottom surface. Whereby once the lid halves are attached to the projections of the bottom surface, one unit may be placed within the cavity of another unit for stacking to accommodate convenient packaging, storage and display. In addition, by attaching the lid halves to the bottom surface of the cooking container, lids are prevented from being lost.

Abstract: A container having fixed sectional dividers is provided, the sections being hingedly connected to permit stacking of one container within another and equipped with a container section latch to connect the container sections while in use.

Abstract: A bucket (10) has a bottom surface (11) and opposed side walls (12, 13) as well as adjoining opposed end walls (14, 15) extending upwardly from the bottom surface (11) forming an open top defined by a rim (21). A bail (24) has one end pivotally attached to the side walls (12, 13) and the other end carries a handle (28). Spouts (18, 19) are formed at the top of each end wall (14, 15). An assembly (33, 37) is provided to hold the bail (24) in a generally horizontal position adjacent to the rim (21). When the bail is not being so held and is pivoted such that its handle (28) is adjacent to an end wall (15), its pivot length is such that when the bucket (10) is stacked with like buckets (10A, 10B, 10C, 10D, 10E), the handles (28) of the lowermost three buckets (10, 10A, 10 B) are underneath a spout (19) of the lowermost bucket (10) and the handles of the fourth and higher buckets (10C, 10D, 10E) rest in the spout of the third bucket therebelow.

Abstract: Reusable plastic trays for storing and transporting beverage containers, such as twelve-ounce metal cans and two-liter PET bottles. The tray floor has thereon an array of support areas for the containers. The tray rail thereof is spaced high enough above the floor and in a "low-depth" design to prevent the containers on the support areas from tipping during transport. A generally rectangular band having upright inside and outside faces and an outward lip on top of the band form the rail. Columns between adjacent support areas interconnect the rail and the floor and angle downwardly and inwardly therebetween. The columns open outwardly and thereby define vertical slots into which the columns of a similar tray can be slidingly received. The trays when empty can thereby be stacked in a deeply nesting position whereby each additional tray adds generally only the height of its narrow rail to the height of the nested trays.

Abstract: A stackable, double-walled paint pail having a liquid tight receptacle formed by a generally U-shaped wall and a pair of nearly vertical side walls. The two side walls are spaced from each other by a distance greater than the length of a conventional paint roller. The branches of the U-shaped wall diverge upwardly from each other as do the paired side walls, allowing the pails to be stacked in a compact fashion. Except for the uppermost pail in a stack, each pail is partially disposed within a double-walled structure of the pail immediately above it. Surfaces of the pail across which a roller can be worked include a cylindrically-rounded section at the bottom of the U-shaped wall and a plurality of ridges. The ridges extend horizontally across the inner surface of the upper portion of each branch of the U-shaped wall, forming a pair of washboard-type faces over which a paint-laden roller can be rubbed to coat it evenly with paint.

Abstract: A one-piece merchandising container made of synthetic plastic sheet is provided. The merchandising container is suitable for storing food products such as sandwich type products within warming ovens useful in self-serve food store operations. The merchandising container includes an overlocking sealing peripheral lip structure, an especially flexible hinge portion, and a locking assembly that ensures closure of the merchandising container until the locking assembly is precisely manipulated through an unlocking procedure initiated by depressing a portion of the container below the locking assembly.

Abstract: A molded, stackable and nestable beverage can tray having tapered side walls and end walls, contoured window openings in both the side walls and end walls, and having contoured window openings in both side walls and end walls to snugly contain the cans is disclosed. The bottom length and width dimensions of the tray are less than the sum of the diameters of rows of can placed in the tray. Trays according to the invention have 3:2 length-to-width ratio for cross-tying stacks, and have a tray bottom design having generally diamond-shaped standoffs projecting downwardly from the bottom of the tray to lock onto the tops of the cans contained in the tray immediately beneath the can tray. The trays include can bottom seating rings capable of receiving and centering cans having a range of the bottom diameter dimensions. Trays according to the invention have side walls and end walls which are tapered at an angle of preferably 10.degree.

Abstract: A rigid one-piece merchandizing container made of synthetic plastic sheet is provided. The merchandizing container is suitable for storing food products such as sandwich type products within warming ovens useful in self-serve food store operations. The merchandizing container includes a sealing peripheral lip structure, an especially flexible hinge portion, and a locking assembly that ensures closure of the merchandizing container until the locking assembly is precisely manipulated through an unlocking procedure.

Abstract: A pizza dough shell container which makes up into a package having a plurality of similar containers supporting a single pizza dough shell in each container so that by forming a package of many containers the pizza dough shells are protected during transit to a place of sale and at the same time the shells are free to relax and undergo some shrinkage but are free to be removed from the containers to supply the demand.

Abstract: This container system can be used for a delivery van (10) having an interior floor covering (18) providing the loop component of a hook and loop fastener. The floor covering provides attachment for a tray (24) having VELCRO strips (32) on the bottom (26) providing the hook component of the hook and loop fastener. The tray (24) can have tapered sides (28) adapted to receive the compatibly configurated container (40) of a relatively tall floral package (22). The floral package (22) includes a cooperating, tapered sleeve (42) which is sandwiched between the two containers when the floral package (22) is placed within the awaiting tray (24). The gripping interaction between the VELCRO strips (32) on the tray (24) and the floor covering (18) resists the tendency of the package to overturn and slide.

Abstract: For the transport of blank stacks (22) to a packaging machine, there are reusable cassettes (21) which have chambers (23) for receiving a multiplicity of blank stacks (22). The cassettes (21) are filled with the blank stacks (22) in a paper factory and are emptied in the region of the packaging machine. The cassettes (21) are designed so that several emptied cassettes (21) can be nested in one another and returned as a space-saving unit to the paper factory. Furthermore, the cassettes (21) are designed so that they can be transported by overhead conveyors, without any manual labor being involved.

Abstract: A tray according to the present invention comprises a plastic body having upper and lower surfaces. A number of bottom sockets are distributively formed in the upper surface of the body so the respective bottom portions of bottles can be inserted individually in the bottom sockets. Each bottom socket has a configuration which is obtained by connecting those portions of the respective cross-sectional contours of the bottom portions of two or more different types of bottles which are situated outermost when the individual contours are superposed concentrically so that at least two diametrically facing regions of the one contour are not situated inside the other contour. Cap socket corresponding one of the bottom sockets is defined on the lower surface of the body. Each cap socket is a hole, such as a stepped hole, which has at least two hole portions with different inside diameters.

Abstract: A receptacle adaptable for nested stacking which has a bottom and walls which cooperate to form an open-topped well having rounded corners defined by a first radius. The receptacle includes a plurality of stop structures for limiting depth of insertion of adjacent receptacles in a nested orientation, which stop structures are preferably located at the corners of the well and comprise an integrally formed depression and an associated shelf in each corner.The shelf is generally planar and generally horizontal and has a boundary adjacent the well which is defined by a second radius, larger than the first radius which defines the corners.The depression has a first portion and a second portion. The first portion preferably depends outwardly of the well substantially from the boundary of the shelf and extends beyond a vertical line intersecting the boundary. The first portion is pitched outward of the vertical line from the boundary of the shelf.

Abstract: A molded, stackable and nestable beverage can tray having tapered side walls and end walls, contoured window openings in both the side walls and end walls, and having contoured window openings in both the side walls and end walls to snugly contain the cans is disclosed. The bottom length and width dimensions of the tray are less than the sum of the diameters of rows of cans placed in the tray. Trays according to the invention have a 3:2 length-to-width ratio for cross-tying stacks, and have a tray bottom design having generally diamond-shaped standoffs projecting downwardly from the bottom of the tray to lock onto the tops of the cans contained in the tray immediately beneath the can tray. The trays include can bottom seating rings capable of receiving and centering cans having a range of bottom diameter dimensions. Trays according to the invention have side walls and end walls which are tapered at an angle of preferably 10.degree.

Abstract: This invention relates to a resealable package for holding goods which may be perishable such as cheese. A tray is structured to hold the goods and a cover fits over the top of the tray to seal and reclose the package as goods are removed. The empty tray is stackable for shipment in nested fashion and includes a ledge to space the trays to facilitate separation.

Abstract: A container for oblong articles includes a bottom wall, two side walls and two end walls connecting the side walls. A cover is pivotally attached through a film-type hinge to one of the end walls and is in its closed position in locking engagement with the other end wall. A tongue extends upwardly from the upper edge of each end wall. A flange and a web located inwardly from the flange extend downwardly from each end portion of the cover. In the closed position of the container, the tongue extends between the flange and the web and into a slot defined in the cover between the flange and the web and an inwardly projecting nose formed on the flange is received by a recess defined in the tongue.

Abstract: An electric hotplate has a hot plate body and plugging pieces for connection to connecting members of supply lines. A stacking aid is provided for receiving a plurality of hotplates in a multilayer stack, the stacking aid having pallet plates providing receptacles for receiving the plugging pieces of each single hotplate laterally outside of each single hotplate.

Abstract: A hand cart or wheelbarrow is provided with a tub member having slanted walls, one with respect to another, together with suitably designed auxiliary members, such as a handle, wheels, axle and hardware. At the factory site the auxiliary members and hardware are placed within the tub and enveloped as a unit with a packaging material so that the resultant package is of the same general shape and configuration as the tub and contains all the elements of the complete product. In this way each package can be nested in another like package, and a plurality of such packages, so nested together, can form a compact shipping unit, storage unit or sales unit that affords maximum protection to each product and that virtually eliminates wasted space between the stacked products.

Abstract: A tray primarily designed to be used in conjunction with packaging of a video tape where the tray is constructed of thin sheet material and includes a central enlarged compartment within which the video tape is to be located in a close confining manner. Surrounding the compartment is an enclosing side wall which interiorly is hollow. Included within the enclosing side wall are ledges which are arranged so that a pair of trays can be stacked together and can be positioned in either a totally nested position or a partially nested position.

Abstract: An apparatus for transporting articles comprising a transporting well having a generally planar polygonal bottom and a plurality of walls, each of which walls being joined substantially at its upper extremity by a substantially rigid bead structure which defines a peripheral channel adjacent the plurality of walls outboard of the well. The channel is bounded by the plurality of walls, by a web extending substantially from the upper extremities of the walls, and by a skirt depending from the web. The skirt extends a greater distance from the web in the vicinity of the corners of the well than elsewhere. The apparatus includes a channel-filling structure substantially at the center of each section of longer skirt length for precluding jamming during stacking, and stand-off ridges on the outboard side of each wall for limiting the expanse of contact area between the walls and abutting planar surfaces.

Abstract: A videocassette case which has traylike upper and lower sections connected by a living hinge along one side of the case, components at the opposite sides thereof and integral with the upper and lower case sections for latching them together, bosses extending upwardly from the bottom wall of the lower case section which engage the hubs of a cassette stored in the case to keep them from rotating and allowing the tape to be creased, unitary stiffeners in the side and end walls of the case sections which also serve as spacers and snugly position the cassette in the case, and external legs in the end walls of the upper and lower case sections which facilitate stacking and also increase the rigidity of the upper and lower case sections. At least the upper section of the case is fabricated from a polymer which is clear enough to make labels and other data associated with the stored cassette visible from the exterior of the case.

Abstract: There is disclosed a containment tray which is formed of plastic which is molded into a tray having upright perimeter walls and a bottom wall having transverse channels in its undersurface for receiving the conventional arms of a forklift or pallet jack. The tray can be formed by vacuum thermal forming, in which case it is used in combination with a platform insert formed by a pair of beams which are received within the tray and which support transverse rails thereby forming an upper platform. Alternatively, the tray can be rotationally molded and the raised platform can be molded into the tray in the form of a plurality of upstanding plugs. In either embodiment, the upper planar surface of the raised platform is positioned above the level of the upper edges of the side walls of the tray whereby a conventional forklift can deposit loads of containers mounted on standard wooden pallets onto the raised platform of the tray, and remove those pallets, when desired.

Abstract: A tray for packaging semi-circular split ring bearing halves is provided having a plurality of elongated compartments. Each compartment includes a herringbone-type of arrangement of ribs on the bottom wall thereof to receive bearing halves. The bearing halves are separated from one another by the ribs. Trays loaded with bearing halves may be stacked one upon the other with the compartments of one tray being nestable within compartments of a lower tray.

Abstract: A spacer tray 2 for containers 32 is formed of a moldable sheet material and is shaped to provide a plurality of container-bottom receptacles 4. Each container-bottom receptacle 4 is shaped to receive at least a part of a bottom portion of a container 32. A container spacer wall 30 is located between each pair of adjacent container-bottom receptacles 4 to maintain bottom portions of containers seated in the receptacles spaced apart from one another. The spacer tray includes a plurality of container-loading-guide-pin caps 36 which permit end portions of container-loading guide pins 78--from a high-speed spacer-tray loading machine, for example--to project into and fit within the interiors of the caps for locating the spacer tray 2 and for reinforcing the caps for guiding bottom portions of containers 32 into container-bottom receptacles 4 during loading of the spacer tray.

Abstract: A nestable, two-part tray including a lower part having tapered side walls and a bottom made of waterproof material, having an open top surrounded by a shoulder and having a vertically standing rim connected to the outer extremity of the shoulder, the second part of the tray being a flat element such as corrugated cardboard having dimensions such that it fits within the rim and has its edges resting on the shoulder.

Abstract: A container constituted of a microwave transparent material for the heating or cooking of foods or comestibles through the intermediary of microwaves at a high degree of efficiency and with an enhanced temperature uniformity. The container base is configured in a manner to produce generally wavilinear or undulating bottom wall and side wall configurations which will disperse the food or comestible within the container to an optimum extent so as to increase the heating and cooking efficiency thereof, and to provide a more uniform temperature distribution throughout the container contents, thereby enabling the rapid and even heating and/or cooking of the food by microwave energy.

Abstract: A container for handling and storing large quantities of bulk material such as food products, comprises a unitary molded plastic liquid-tight single wall tank or tub having a bottom and four upwardly extending walls, corner nesting stops located at each corner at the upper end of the container, a lip along the upper edges of the walls, and gussets at the top of the walls supporting the lip. A lid fits over the container lip and has a skirt that is blended inwardly toward the lip so as not to catch on a lip or lid of an adjacent container.

Abstract: A storage pack is provided comprising at least two stacked and nested trays each loaded with a plurality of semicircular split ring bearing halves. Each tray includes a plurality of elongated compartments each of which has a rib structure on the bottom wall thereof defining a herringbone-type arrangement. Bearing halves are loaded into each tray compartment on one edge thereof with the ribs separating adjacent bearing halves. The ribs are of less height than the width of the bearing halves so that when one loaded tray is stacked and nested on another, the bearing halves assume the vertical load without loading the ribs.

Abstract: A receptacle member, such as a plastic tray, is symmetrical about at least one axis and includes engagement elements of at least two, complementary interfittable forms. Two of the members are assembled in inverted, confronting relationship to one another so as to define compartments of regular configuration within the resultant container unit, which are symmetrical with respect to a medial plane therethrough.

Abstract: A stackable refuse container having removable dividers that can be removed for hauling and then locked in position at the pick up site to provide a multiple compartment refuse container and a method of hauling multiple stackable refuse containers using a trailer and conventional hooklift refuse hauling truck.

Abstract: A stack of improved bracket table cover sheets for use by dentists is disclosed. The sheets have ridges throughout their peripheries. The outer edges of the ridges extend downwardly. The ridges are designed to fit snugly over the peripheral ledges of the bracket table or of a separate backing designed to be positioned on the bracket table. Preferably, one of the raised edges is provided with an integral flap. The improved bracket table cover sheet of the stack comprises a paper component and a water and organic solvent impervious component. In one form, the impervious component is wax that impregnates the paper component. In another form the impervious component is a polymeric coating. Each bracket table cover sheet of the stack is characterized by a drape, hand, and feel that permits it to be easily folded and wrapped into a disposable pack.

Abstract: A molded plastic shoe box including a housing with flared sidewalls and a lid. The housing is provided with at least one pair of closely spaced partition walls which provide a baffle wall dividing the interior of the housing into compartments, and prevent complete nesting when two like housings are placed one within the other. The led has a raised perimeter to prevent sliding when closed like boxes are stacked on one another. The lid is shaped to permit stacking with like lids and is vented to permit circulation of air into and from the closed box.

Abstract: A sectional container is disclosed having at least a front section and a back section which interlock to form a closed package. The back of the front section serves to close the front of the back section, and vice versa. Optionally, the sectional container can have one or more intermediate sections which fit in an interlocking relationship to the back section or between the front section and the back section in order to enlarge the holding capacity of the container. The intermediate sections are identical and are interchangeable. Additionally, the back section can be identical with the intermediate sections. The sectional container is useful to store, display, and dispense a plurality of items.

Abstract: A tray for coating fluids and paints for use with a roller comprising a deep well section, a gradually-sloped section, a brush rest section, tray legs extending downward along a slanted vertical line, horizontal extensions at the bottom of said tray legs, substantially vertical walls terminating in a wall lip at a uniform height, said tray being characterized by an underside which is generally complementary to the configuration of the top side, said tray being stabilized by a plurality of ribs extending generally longitudinally of said tray beneath the brush rest section, whereby a plurality of said trays may be nested within each other when not in use, and being further characterized by an excellent rigidity of structure and minimal deformation when said tray is in use and filed with a coating fluid.

Abstract: A container which, when empty, is nestable within a like container and may be used to contain a structured paint or other material. The container comprises grippable (22), wall (20) and base (12) portions, the grippable portion (12) being integrally formed with the wall portion (20) and lying adjacent the wall portion (20) and extending within an outer like container in a nesting configuration. When not nested the grippable portion (22) is displaceable relative to the wall portion (20).

Abstract: A block set, each block including a generally cubical portion with a frusto-pyramidal or convex portion, and an oppositely disposed frusto-pyramidally configured mating concave portion for interlocking. Each of the fourteen surfaces or sides thus formed includes a substantially similar pictorial depiction of an object, such as an animal or the like, with a letter imprinted on the object, preferably in a portion of the object which bears a resemblance to the letter. The edges of each side of the block are colored, with each edge being a different color for promoting color awareness, with the like colored edges of adjacent blocks establishing a preferred orientation for pictorial and indicia alignment. The individual pictorial representations on adjacent surfaces of the same block are oriented in different orthogonal directions for enabling reading of a word on the adjoined surfaces of adjacent blocks on at least one other of the adjoined surfaces of the blocks.

Abstract: A container with lid members closing off the top of the container. The lid members may be swung on opening of the container to hang downwardly outside the container. The lid members are collapsible, and when collapsed, may be swung to extend downwardly on the inside of the container. Containers are nestable with the lid members on the inside of the container.

Abstract: A tote box system employs two sets of nesting boxes that are identical except for side wall height that provides different volumes and except for bottom configuration that prevents bottom damage when a tall container is nested within a short container. The bottom configuration is such that there are flat engaging horizontal surfaces supporting the tall box on the short box without substantial engagement between reinforcing channels or like slanted vertical portions of the bottom that would otherwise have a strong wedging action if they fully engaged, particularly with a large stack of nested boxes.

Abstract: A plastic tank for handling and storing large quantities of bulk material such as cucumbers in brine comprises a molded plastic tank having a bottom and four upwardly extending walls, a lip along the upper edges of the four walls, the walls including corner nesting stops for facilitating nesting and unnesting of the tank in a similar tank by limiting the distance an upper nesting tank extends into a lower nesting tank, the walls further including gussets extending from the walls of the tank to the outer portion of the lip for supporting the lip at the top of the four walls and for guiding a tank being lowered next to an adjacent tank into proper position, an interference ear at each of the lower corners of the tank to protect against tanks jamming together when nesting, the bottom of the tank including three parallel downwardly extending, hollow runners forming support members for the tank, the runners extending across the bottom of the tank, spaces formed at the ends of the runners for entry of tines of a fo

Abstract: Container for packaging hot or cold foods or other goods and produced by thermoforming sheets of plastic such as P.V.C., polystyrene or other similar plastics. This container is characterized by its prismatic shape with polygonal base, which on stacking hold the container firm and rigid both when empty and when filled with either hot or cold foods.

Abstract: A transport tray for ribbon formed glass articles such as lamp glass envelopes and glass containers is disclosed which permits increased packing density to be achieved when the article containing trays are vertically stacked for shipment. The tray member comprises a flat sheet having cavities formed therein which partially enclose one side of the individual glass articles when inserted therein and with the location of said cavities being defined by at least one central row having the glass articles aligned alternately in opposite longitudinal directions, together with a row of said glass articles being located at each end of said central row wherein the individual glass articles are aligned in a longitudinal direction transverse to the longitudinal direction of the glass articles in said central row. These trays are thereafter stacked vertically whereby adjoining trays are rotated approximately 180.degree. with respect to each other for the increased packing density.

Abstract: A compartmentalized wastecan or trash container for separating categories of waste comprised of a container of a single molded piece of plastic having semi-rigid sidewalls and being interiorally traversed by at least one separator wall, thereby defining a plurality of openings in the top of the container, the separator wall positioned so as to permit the formation of an annular flange and lip about each of the plurality of openings to frictionally engage a plastic garbage bag in each of the plurality of openings.

Abstract: The present invention relates to a carrying tray and, more particularly, to a tray which securely holds hot and cold drink cups of various sizes, and is adaptable to hold other items. A plurality of gripping elements in a cup receiving cavity grip and retain a chime-bottomed cup. A flat-bottomed cup is stably supported on a platform in the cup receiving cavity. Various inserts may be selectively used to more stably retain tall cups or to retain other items, such as ice cream cones and the like.

Abstract: A carton blank and method for forming a liquid-tight tapered container having a denesting tab. When the blank is folded and sealed to form an open-topped tapered container, a destacking tab is formed as a result of abhesion. The tab facilitates destacking a single container from a stack of like containers prior to their filling and final closure.

Abstract: A stackable edge protector for use in packaging. A multi-ply fibreboard construction having a right angle cross-section with sufficient length to extend along the edge of the product to be protected. Adhesive pads facing inwardly on the construction removably secure the edge protector to the product. Outwardly opening recesses located on the outer surface of the main body nestably receive the adhesive pads of an identical edge protector when stacked thereatop. The recesses are larger in size than the adhesive pads preventing stacked edge protectors from adhering together.

Abstract: A container for the freezing and compact storage of foodstuffs prepared in large batches is provided with a rectangular open top with two or more transverse pockets in the bottom to provide maximum exposure of the contents to a cooling medium. The spaces between the pockets are greater than the size of the pockets themselves and a space is reserved at one end of the bottom so that when frozen one container may be inverted and also turned end-for-end to enable another container to be stacked upon it in upright position overall vertical alignment. Portions of the side walls are spatially offset so that the line of demarcation between the two wall areas provide for expansion of the walls as a whole to resist "doming" of the frozen contents.

Abstract: In a plastic molded tote box having one lid or opposed lids that will shingle with other lids in the open position when the box and like boxes are nested, the maximum horizontal dimension for the shingled lids, as measured outwardly from the adjacent box side wall (lid flare), is reduced by tapering the lid rib structure toward the hinge, and/or by tapering the outboard lid skirt toward the hinge, and/or by flaring one or more lid flanges, particularly the inboard flange. The latter two structural features permit increased nesting of the lid side skirts or channels, which in the closed position of the lid overlie the box side walls.

Abstract: A nestable, open-top container has a cover formed of two separate, co-planar pieces, each covering one-half of the open top. Each cover piece is hingedly connected to one side of the upper edge of the container and extends toward and overlaps the opposite side, that is, the side to which the other cover piece is hinged. The cover pieces' adjacent edges engage each other and their remote edges overlap and are supported upon their adjacent container upper edge portions. Each cover piece may be slid sidewise upon its hinge so that it can be spaced from the container upper edge portion which it otherwise overlaps wherein it can be swung either inside or outside of the container. When the cover pieces are arranged in co-planar covering positions, a number of boxes can be stacked, and when they are swung outwardly or inwardly of the container, the boxes may be nested.

Abstract: In a plastic molded tote box having one lid or opposed lids that will shingle with other lids in the open position when the box and like boxes are nested, the maximum horizontal dimension for the shingled lids, as measured outwardly from the adjacent box side wall (lid flare), is reduced by tapering the lid rib structure toward the hinge, and/or by tapering the outboard lid skirt toward the hinge, and/or by flaring one or more lid flanges, particularly the inboard flange. The latter two structural features permit increased nesting of the lid side skirts or channels, which in the closed position of the lid overlie the box side walls.