Abstract: A corner lock carton exhibiting improved lock retention includes a base panel, a pair of wall panels, and a locking flap panel joined to one of the wall panels. The other wall panel includes a locking slit formed inwardly thereon to receive the locking flap panel. The slit has a vertical segment, a horizontal segment, and an angled segment connecting the vertical and horizontal segments the ends of the angled segments being disposed at an angle of 40.degree. to the vertical segment. The flap panel includes a lock member having a first edge portion aligned parallel to the vertical segment of the slit when the carton is erected and a second edge portion disposed at an angle of 45.degree. to the first edge portion. When the wall panels are erected, the lock member is disposed through the slit, and the second edge portion of lock member engages the slit at a point adjacent the juncture of the vertical segment and the angled segment to securely interlock the flap panel and slit together.

Abstract: A container is formed with a tray portion and a cover portion hinged to the rear of the tray portion. A flap positioned between a side panel of the cover and a side wall of the tray prevents outward flaring of the side panels when the container is closed.

Abstract: A container is formed from paperboard, or the like, and has an integral, internal partition which separates the products located in the container.

Abstract: A one-piece reinforced paperboard container suitable for rapid manual filling and assembling is described and claimed. The container has novel multi-purpose corner constructions in that they impart to the container enhanced structural strength while providing a locking feature. Assembling the container requires no manufacturer's joints, eliminating the need for stitching, stapling, taping and the like. The container is suitable for packing many products such as meat.

Abstract: Box cover comprising a top panel, fold over sides and fold over ends, the fold over sides each including a corner assembly tab and a floating corner reinforcement tab at opposite ends thereof, each assembly tab including structure allowing the reinforcement tab adjacent thereto and associated therewith to be nestled thereagainst and to extend generally coplanar with a substantial portion of the assembly tab. The method of assembling the box cover from an integral blank with glue applied to the inside of the fold over ends, utilizing a straight or planar surface mandrel moved into position indirectly engaging a pair of floating reinforcement tabs and a pair of assembly tabs in substantially a single plane and directly engaging a fold over end.

Abstract: A paperboard carton having a gable top for forming a liquid pouring spout is provided with an integral handle on the gable top to aid in pouring the liquid contents of the carton and in carrying the carton.

Abstract: A readily erectable multi-cell partition formed from a unitary blank of foldable paperboard.

Abstract: A coated paperboard container and a blank for constructing the container is disclosed as including a body portion having an upper end that is closed by a folded top end closure which includes closure panels and seal lips having a construction that enhances foldability and sealing. Front and back gable panels of the top end closure are each flanked by a pair of triangular inner roof panels that have different sizes than each other so as to facilitate folding of a top seal provided by the seal lips from a vertical position in a direction toward the smaller inner roof panels. Inner seal lips are each connected to one pair of the inner roof panels by a single score line and outer seal lips are likewise each connected to outer roof panels of the closure by a single score line. Terminal edges of the outer seal lips extend alongside each other in the constructed condition.

Abstract: A lug box having cored-out plastic end walls and a wrapper, preferably of corrugated paperboard, that is nailed to the end walls. The wrapper is formed by a single piece including bottom and side panels as well as foldably attached lid flaps that provide a top for the box. Each end wall has parallel ribs extending along its bottom and side edges that receive the nails. Reinforcing ribs in the center sections of the end walls lend added rigidity and strength.

Abstract: A collapsible multicell carton constructed from a single blank. The carton includes four side panels, four partition panels and four bottom panels, the side panels being hingedly connected end-to-end and corresponding partition and bottom panels being respectively hingedly connected to the side panels. Specially shaped slots in two transverse partition panels and two bottom panels of the carton permit two longitudinal partition panels to slide easily in and out of position through the slots s the carton is opened and collapsed. Gluing is required only between partitions and two of the side panels and not at the bottom. Two embodiments of the invention include a four cell carton and a six cell carton.

Abstract: A bottom-unloading bulk container having a bottom closure and having a top closure that includes flaps hinged to the body walls. Openings in the side walls are proportioned to receive the tines of a forklift truck. These openings are located a predetermined distance below the top edge of the sidewalls, and longitudinal wooden slats are located just above these sidewall openings. Bands encircle the body and the top and bottom closures at locations just interior of the sidewall openings. The container can be filled through an inlet provided by partly unfolding the top flaps after banding. After reaching its destination, the filled container can be lifted and transported to an unloading location by a forklift truck whose tines extend through the sidewalls openings and its contents dumped through the bottom opening upon release of the encircling bands.

Abstract: A generally cylindrical, tub-shaped carton having a flat bottom, and particularly suited for containing butter or margarine, is formed of a single paperboard blank, and is characterized by having a generally cylindrical-shaped side wall formed of two panels, each of which is integrally formed with and hingedly connected to one of two opposing sides of a hexagonal horizontal base portion. Intermediate each of the remaining sides of said hexagonal base portion and a side wall panel is an articulated webbed corner which, in the erected position of the carton, is wholly disposed within the tub-shaped carton in a flattened relationship against said side wall panels to reinforce the side wall seam of the tub-shaped carton. The hexagonal base or bottom of the carton is flat, thereby offering a more stable carton having greater capacity at a reduced cost of manufacture, and also offering better sealing of the carton during packaging of the butter therein.

Abstract: Boxes e.g. for fruit and vegetables are described which consist of a base and sidewalls folded up from the base. The ends of the sidewalls are held in position relative to one another and relative to the base of the box by means of a number of corner posts, e.g. four for a rectangular box. Each corner post is produced from an extruded section and can simply be slid on to the two adjacent ends of sidewalls when they are held substantially in the upright position. Means are provided to stop lateral movement of one corner post relative to the one below it when two such boxes are stacked vertically aligned. Such means may comprise shaping on the end of each corner post or intermediate stacking pegs which engage e.g. the top of one corner post and the bottom of the vertically adjacent next box.

Abstract: The container of the present invention includes polygonal sidewalls with at least some of the upper edges of the side walls each having a container locking flap thereon and with at least one other of the side walls being free from locking flaps. The lid has polygonal edge walls sized to matingly fit over the upper edges of the container side walls. Each of the edge walls of the lid are provided with a lid lock flap which folds upwardly and inwardly with respect to the edge walls and which terminates in an upwardly presented edge spaced downwardly from the top of the lid. When the lid is placed over the top of the container, the lock flaps of the container retentively engage the upwardly presented edges of the lid lock flaps.The lid may be removed after the first locking by severing the lid lock flaps from the lid with a knife or other cutting instrument.

Abstract: A partition separator for containers sold in the trade generally as multi-packs is disclosed. The separator is formed from a cut and scored blank of paperboard or the like having foldably joined separator elements extending in a vertical plane inclined to a vertical plane extending between rows of said containers and transversely extending separator elements foldably joined to the first named separator elements, the transverse elements extending in a vertical plane between containers of a row.

Abstract: A tray of molded pulp or like material for carryout food and beverage comprising one or more pockets for receiving and firmly supporting any one of several different size beverage containers normally used in the carry-out food trade, each of the pockets having a circular floor portion, a web portion extending for a full 360.degree.

Abstract: This invention relates to a blank for a box structure which folds into a box or into a box with a tray structure attached. The flaps of the box blank are so structured that upon the proper fitting together, a table or tray, with supporting members to hold the tray firmly in a horizontal open position, will be formed.

Abstract: A coated paperboard container and a blank for constructing the container are disclosed as including a body portion having an upper end that is closed by a folded top end closure which includes closure panels having a construction that enhances foldability and sealing. Front and back gable panels of the top end closure are each flanked by a pair of triangular inner roof panels that have different sizes than each other so as to facilitate folding of the sealed top end closure from a vertical position in a direction toward the smaller inner roof panels. The unequal size of the inner roof panels on opposite sides of each gable panel is provided by score line portions that are stepped with respect to one another. The lower of the adjacent score line portions, providing the smaller inner roof panel is formed wider than the other score lines so as to allow the top seal to be sealed in a vertical position and then to be readily folded toward the smaller inner roof panels.

Abstract: The shelf storage box is of the type which has a bottom panel, side panels, a back wall formation and a front wall formation which is not as high as the side panels and back wall formation so that one can see the contents of the box. The front wall formation includes two flaps that extend respectively from the side panels in overlapping relationship and a foldable panel hinged to the bottom wall panel and extending upwardly and over the flaps. A first panel section of the foldable panel has a cut therein which extends from the bottom panel upwardly, across a portion of the panel section, and then downwardly to the bottom panel to form a foldout handle formation with the space left by the foldout handle formation defining a window. The foldout handle formation has a hole therein to facilitate gripping of the handle with a finger.

Abstract: Polygonal containers of the present invention include a container sides assembly and a container bottom assembly which are adapted for interlocking engagement.The container sides assembly has a plurality of generally rectangular side panels hingedly interconnected to form an enclosure defining the sides of the polygonal container.A plurality of lower edge flaps are hingedly connected to the lower edge of the rectangular side panels and are adapted for folding upwardly and inside the enclosure to interlockingly receive corresponding elements from the container bottom assembly.The container bottom assembly has a polygonal bottom panel having sides equal in number to the rectangular side panels and are of such a size to fit snugly within the container sides assembly when in assembled configuration for forming the container bottom.