Abstract: The invention disclosed herein relates to a packaging try with a thermoformed inner lining. The packaging tray includes, internally, in each corner, a corner panel which is inclined toward the bottom of the tray such that it approaches the center of the bottom. The corner panel is inclined at an obtuse angle with respect to the bottom and to the walls which define the corner. Also disclosed is a unitary packaging tray blank from which the packaging tray is constructed.

Abstract: A corrugated produce container is formed from a single piece of suitably cut and scored corrugated packaging material. The container has a bottom, two side walls and multi-ply end panels. Suitable stacking tabs may be provided and the top closure panels can be folded over the stacking tabs. Hinged to each wide end panel is a multi-part reinforcing end panel having a first portion extending in the vertical direction and having a top member hinged thereto which is folded over and has one edge thereof sized to overlie the top edge of the end panel. Hinged to this portion is another vertically extending reinforcement member and hinged on the opposite side of it is the major reinforcement end panel. Suitable hand holds and ventilation apertures can also be provided.

Abstract: An integral carton blank from which a carton is formed having an end with three upstanding carton walls forming a pair of spaced-apart outside corners with reinforcing corners nested within each outside corner. The reinforcing corners are formed of reinforcing shoulders integrally joined to the end walls of the carton. Each reinforcing shoulder has three panel portions, two overlying a side wall and one overlying an end wall. Substantial portions of the panels of the reinforcing shoulder engage a floor of the carton to provide improved compressive strength.

Abstract: A stackable articulated carton tray apparatus for flat food products, particularly pizza pies, capable of being stacked in multiple quantities upon one another such that the bottom panel or an upper carton apparatus forms the cover for the adjacent lower carton apparatus. The carton apparatus is further joinable in a manner so as to prevent the shifting and separation of the stacked carton apparata during transport. The carton apparatus includes an octagonal bottom panel, side walls and detachable top panel for the uppermost one of several carton trays. Emanating from the side walls are alignment and interlock flaps for aligining and releasably joining multiple ones of the carton tray apparatus in a stacked configuration.

Abstract: A multi-piece foldable container including a corrugated body blank and a pair of corrugated liner blanks. Support columns are found in the liner blanks at positions along the sides of the container while multiple layers of the corrugated fibreboard are provided at the ends of the container to reduce tear out at the hand holes.

Abstract: An integral paperboard blank is provided for assembly with four corner posts to form a container for produce and the like. The corner posts are provided with nesting legs and slots so a plurality of containers can be stacked and nested. In addition, the container is provided with a flexible cover.

Abstract: A container includes a rectangular tray and a removable lid. Each short side of the tray is constructed of two closely spaced walls or partitions and the lid is provided with extensions each of which projects through a slot in the narrow connecting section that joins each pair of short side walls and extends into the space therebetween. With a plurality of these tray in a stack, the connecting sections provide ledges on which each of these trays supports the adjacent higher tray. For each pair of short side walls, the inner one thereof is provided with a panel at both ends thereof. Each panel has an end or distal section that overlaps and is cemented to the adjacent long side wall and a joining or connecting section that extends diagonally between this long side wall and the main central section of the short wall. These joining sections serve to support the adjacent upper tray in the stack.

Abstract: An economic stackable container of foldable corrugated material with improved strength for forming a stable stack of containers. Ventilation spaces are provided between stacked containers. The arrangement of panel is disclosed. An extension formed at the top at each corner projects into a notch formed at the bottom of a respective corner of the container above. The panels are particularly reinforced by folded panels at the corners. A separate reinforcing sheet is applied around the periphery of the panels of the main sheet. The sheets have their corrugations in the various panels oriented for strength.

Abstract: An articulable carton tray apparatus for containment and protection of articles, such as food produce articles, which apparatus may be assembled in a facilitated manner, with reduced amounts of paper materials, while being capable of resisting collapse during stacking and maintaining its assembled configuration under load and stress. The apparatus includes a bottom wall, and side, end and top walls. Flaps emanate from the side, end or top wall to align and lock to one another, remaining ones of the side, end or top walls--to maintain the apparatus in its articulated configuration, through locking means operably positioned within the flap. These locking means engage and co-operate with elements in the adjacent side, end or top wall. Support columns extend between the top walls and the bottom wall to further resist collapse of the apparatus during stacking.

Abstract: A folding carton formed from a one-piece blank of corrugated board is provided with vertically extending corner gusset elements which impart substantially increased vertical crush strength thereto.

Abstract: A foldable box with a bottom wall (1) and upright walls (2,3,67), one pair of walls (6, 7) being provided with foldable widening strips (10, 11) and foldable lengthening flaps (14, 15; 16, 17), whereas in one pair of walls (6, 7) from each of the bottom corner points an oblique folding line (26, 27; 28, 29) is provided extending upwardly at an angle of about 45.degree.. According to the invention the foldable widening strips (10, 11) are folded in a position parallel to the bottom (1), the oblique folding lines (26, 27; 28, 29) in the one pair of walls (6, 7) are lengthened in the widening strips and in the widening strips (10, 11) from the end points of the folding line (12, 13) between the widening strip and the wall each time a second oblique folding line (30, 31; 32, 33) is provided parallel to the first mentioned oblique folding line.

Abstract: A container for hazardous waste is formed of corrugated cardboard that is coated on both sides with fiberglass. The carboard includes flaps that are bent prior to being coated to form triangular braces that extend along the edges of the container. The container is extremely durable, impervious to a wide range of chemicals, and economical to manufacture. In one embodiment, suitable for use where greater protection is required, a smaller container made by the same technique is lowered into a larger container of the same type, and the space between the inner and outer containers is filled with a liquid foam plastic. When the foam plastic has cured, it serves to prevent movement of the inner container with respect to the outer container, to provide thermal insulation, and to protect against shock and breakage of the inner container.

Abstract: A container comprises a body having a base and a side wall extending upwardly from the base. Support means is provided which is selectively movable between a first position in which a further container can be stacked inside the body, and a second position in which the support means can support a further container above the base.

Abstract: A stackable cardboard box construction comprises a sheet of corrugated cardboard cut, grooved and folded to form a bottom panel, opposite side walls and opposite lengthwise walls united with the bottom by grooved fold lines. At each corner, the side walls and lengthwise walls have upwardly projecting tabs and are folded to form a hollow triangular column having double thickness walls and projecting up above the upper edges of the side walls and lengthwise walls. A triangular plastic cap fitting over the projecting upper end of each of the columns has a stop plane engaging the top of the respective column, a table spaced above the stop plane by reinforcing ribs and a frustoconical stud which projects up from the table and is received in an opening in the bottom of a next higher box in a stack to prevent side slipping.

Abstract: A cardboard box or tray corner fastening device which includes pins to extend down into the flutes of the cardboard at a corner either across or with the line of the flutes. The pins extend from a planar support which provides a support surface for stacking further boxes or trays. A plate bears on the outside of the box near the pins to assist with retention of the pins.

Abstract: A ventilated grape box and a one-piece blank for forming it. The blank is formed from corrugated paperboard and is cut and scored to permit it to be folded into a stackable grape box without the need for fasteners. The upper edges of both ends of the box are provided with upstanding stacking tabs which are adapted to fit in complementary recesses in the lower edges of an identical box stacked above it. Each of two upper closure panels is provided with tabs which frictionally engage certain end panels to thereby maintain the upper closure panels closed after the box is filled with grapes. Certain end forming panels are folded to define a triangular column at each inside corner of the box, to thereby increase stacking strength.

Abstract: An octagonal carton formed from an integral prescored blank having a bottom wall with at least three side walls attached thereto. An opposite pair of the side walls include diagonal corner wall structures which are foldable with the side walls to form diagonal corner walls. The lid is attached to the third wall and is foldable over the two opposite side walls and secured to a fourth side wall attached to the bottom wall or secured by a wall on the lid edge to the bottom wall to form the fourth side wall. The lid and fourth wall structures include various securing structures to secure the carton when erected.

Abstract: A storage box has a container body erected from a unitary, flat blank to provide side walls, end walls, a closed bottom, an open top and cleats extending along the side walls for supporting a removable tray within the container body, between the closed bottom and the open top, the tray being movable along the cleats, relative to the end walls, for selective access to the contents of the box beneath the tray, and a cover for closing the open top of the container body.

Abstract: Open-faced cartons of the corrugated paper type and corner holders therefor having stacking lugs for cooperating with the apertured bottom of another like carton to preclude lateral movement between a pair of cartons when one is stacked on the other are disclosed. In one preferred form, each corner holder comprises inner and outer sidewall engaging flanges interconnected by a "U" shaped portion to be disposed in a carton sidewall slot with a lug in the form of a relatively flat blade and a pair of reinforcing gussets extending upwardly into the bottom of a superadjacent tray. Two such carton sidewall slot engaging clasps interconnected by a generally flat rib may be employed at each corner around an open carton face to hold the carton material in its folded position, provide a support surface for a superadjacent tray and to prevent lateral movement of that superadjacent tray on the support surface. Column joining tie sheets especially suited to use with such cartons and corner holders are also disclosed.

Abstract: A box or container for yams or other bulk products wherein there are closure panels having lock panels at each end thereof, and which lock panels interlock in lock notches formed in end panels carried by a bottom panel of the box. The relationship between the lock panels, which includes bent elbow hooks, and the lock notches is one wherein the required locking action is easily effected and wherein the locks may be readily released for inspection. The box preferably has a three layer end wall construction including end panels carried by the bottom panel and other end panels carried by side panels of the box. The box is readily stackable and has tapered sides and vent openings so as to permit circulation between and within stacked boxes. In one modification the box is formed from a tube, the tube being formed by joining together the ends of a unitary blank to thereby form a manufacturer's joint, the blank defined by a plurality of hinged, articulated panels.