Abstract: A carton having upper and lower hingedly connected halves with "V" shaped cross sections, adapted to be folded compactly and firmly closeable when erected and filled with contents are disclosed. The cartons are especially suitable for use in packaging fast food items particularly hot or cold sandwiches on rolls or buns.

Abstract: An erectable container of paperboard or the like has an integral lid and a novel locking mechanism associated with Beers corner structures for retaining the carton in its erected position. Drag tabs pressing against the bottom panel of the box are provided and are trapped between slits cut in the bottom panel. The slits prevent the drag tabs from returning to their collapsed position, but do not permit the drag tabs to protrude outside the container. The container can be easily erected and loaded and is particularly useful for packaging sandwiches and the like.

Abstract: A press-formed plastic coated paperboard tray is hermetically sealed by applying a hot melt or wax to indentations (e.g. relief depressions or wrinkles) formed in a flange of the tray at the corners of the tray. A film cover is then adhered to the tray over the flange and the hot melt or wax filling the indentations in the corner of the flange of the tray provides a hermetic seal for the interior of the tray and its contents, such as sterilized medical instruments, and precludes leakage of liquids housed within the tray.

Abstract: Three packing cases are disclosed each having a tray and a top portion so assembled that abutting marginal edges of the side and end panels of the tray and cover are adapted to support one case stacked upon another without relying upon the columnar strength of the contents of the case, and where the tray and cover individually have a vertical height significantly less than the height of the product contained in the case. The tray and cover are fabricated from a multiple ply corrugated cardboard material and conventionally formed from generally flat rectangulr blanks with uniquely arranged end flaps such that the flaps can be glued to the tray and nevertheless easily disassembled for purposes of displaying the contents of the tray after the cover has been removed.

Abstract: The drawings and description disclose a flat top end closure for a liquid carrying container, which does not include the usual, well-known gable top characteristics. The flat top end closure includes two oppositely disposed outer closure panels which are adapted to lie flat on top of the underlying fold-in panels and wherein one is longer and overlaps the edge portion of the other shorter one, with the longer one including a lift tab for lifting a portion of the pour spout from its flat attitude during the opening process, and two oppositely disposed, three-segment fold-in panels, one of which serves as the pour spout when opened and includes a lift tab on one of its segments for first lifting a portion of the pour spout from its flat attitude during the opening process, and then opening the full pour spout in such a manner that the pouring lip need not be handled.

Abstract: A self-locking paperboard container including opposed pairs of side walls and a locking structure foldably joined to an end of one side wall for holding the container in an assembled and erected condition.

Abstract: This portfolio construction can be made from a single sheet of light cardboard and it provides two covers hinged together and with each cover made with three layers of cardboard folded back on itself. Each cover has two pockets suitable for holding loose sheets. The inside panel of the back cover has a transverse slot into which the cardboard on the back of a writing pad can be inserted to retain and protect pad sheets when enclosed between the front and back covers of the portfolio; the pad sheets are exposed for ready writing when the portfolio covers are hinged open The only adhesive required is along one horizontal edge of each cover.

Abstract: A hexagonal paperboard container, which comprises:(a) a one-piece, upstanding, generally tubular, reinforcing member consisting of six, foldably connected, substantially rectangular, upstanding, reinforcing panels;(b) a one-piece body member having two sets of three, substantially rectangular, foldably connected, upstanding side wall panels and a bottom wall foldably connected along its opposite sides to the central side wall panel of each set of side wall panels;(c) the sets of side wall panels being located on opposite sides of the tubular reinforcing member and the side wall panels being bonded to the reinforcing panels;(d) two of said reinforcing panels which are bonded to the central side wall panels having abutting major flaps foldably connected thereto at the bottom edges thereof;(e) the four remaining reinforcing panels having minor flaps foldably connected thereto at the bottom edges thereof;(f) said major and minor flaps extending substantially horizontally and fitting together to form a bottom wall

Abstract: A rectangular tray for produce such as cauliflower has a reinforced corner construction formed by a corner flap extending from one side wall of the tray blank that is folded into a columnar configuration at the end of such wall, an adjoining end wall having a top flap folded down to overlie the column, a locking flap extending from the top flap and folded down to lie along the outside of the one side wall with the locking flap having a tab insertable into a slot adjacent the juncture of the one side wall with the tray bottom, and retaining means cooperating with the folded corner flap to retain the columnar configuration between the tray bottom and top flap.

Abstract: A box for instance for storing powder and comprising six side walls. At least three of said side walls are extended to form the top and/or the bottom cover with at least one panel connected with the three side walls. This panel comprises a central main flap and two pairs of side flaps connected thereto through folding rims. These side flaps comprise an oblique triangular rigid portion extending from the main flap and abutting the side walls and furthermore forming an inner obtuse angle therewith, whereas smaller triangular flap(s) in the closed position abut the side walls in question an in case of the bottom cover preferably and are connected to these side walls through folding lines, the main flap being connected to both adjacent side walls. A cut and scored blank is also provided for producing the box. In this manner a tight and simple box is obtained.

Abstract: A carton having side walls and end closing flaps, said carton including at one end a pair of inner closing flaps and a pair of outer covering flaps, said outer covering flaps having their edges in substantially abutting relationship along a line extending substantially across the middle of the carton, said outer flaps each having portions adjacent their free edges which are at least substantially separable from said flaps, and a strip of reinforcing tape overlying said portions of said outer flaps and secured to the side walls of said carton to define with said portions a carrying handle for said carton. The specification also discloses a carton blank from which the above carton is formed.

Abstract: An inner packing device for forming a plurality of cells within an outer container and including side panels, end panels, center panels, and transverse panels joined to the center panel and extending therefrom through the side panels.

Abstract: A tray and one-piece blank for forming it. The tray is formed of corrugated paperboard and includes bottom, side and end wall panels. The side wall panels carrying extensions at their upper end portions, these extensions are wrapped around the end panels for reinforcement. The end panels carry extensions which are bent and positioned interiorly along the side walls, one of the extensions serving as a corner reinforcement against buckling under vertical loads.

Abstract: The carton is machine formed into a flattened erectable configuration by folding and gluing a paperboard blank. The flattened configuration is later erected by a suitable machine and the contents are inserted into the carton and the carton is closed. In order to ensure that glue oozing from the glue seam does not interfere with the erecting of the carton, a layer of glue release varnish is applied to the inside surface of the carton opposite the glue seam. In this manner, any glue which may ooze from the glue seam during formation of the flattened form will not stick to the opposite inside surface of the flattened carton and will not prevent expansion of the flattened form to the erected form.

Abstract: A paperboard carton and a blank for forming same, including a collapsible interior partition and locking means therefor. The carton also includes an interior biasing flap formed in the blank in a novel configuration.

Abstract: A sleeve-type carton formed of a unitary blank of foldable paperboard for holding a plurality of tapered articles.

Abstract: A paperboard container formed from a single blank of material with an improved bottom structure comprises opposed female locking panels and opposed male locking panels which provide a self locking bottom consisting of four thicknesses of the blank material. The top of the container also includes a double thick integral handle with a top closure having integral friction locks.

Abstract: An article carrier of the basket style is formed from a unitary blank and comprises a bottom wall, side walls foldably joined respectively to the side edges of the bottom wall, end wall panels foldably joined respectively to the end edges of the side walls and extending inwardly therefrom, medial partition structure foldably joined to the inner edges of the end wall panels and extending medially inward of the carrier, handle structure secured to the medial partition structure and extending upwardly therefrom, a first pair of transverse partition panels foldably joined to the medial partition structure on each side of the carrier, a second pair of transverse partition panels foldably joined respectively to the first pair of transverse partition panels on each side of the carrier and disposed in overlapping relation therewith, an anchoring tab foldably joined to each of said second pair of transverse partition panels and secured to the inner surface of the associated side wall to form a plurality of article rec

Abstract: An open-ended collapsible paperboard container includes front and back wall panels, and side wall panels tapering to a bottom edge joining the front and back wall panels. In one embodiment of the invention, the side wall panels widen from the bottom edge to a location less than half the distance to the top of the container, and extend therefrom at essentially the same width to the top of the container. In a second embodiment of the invention, the side wall panels comprise diamond-shaped scores which bow inwardly, the diamond-shaped scores encompassing less than one-half the height of the container.

Abstract: A telescopic carton assembly for compact shipment and storage of envelopes and the like which is readily converted and separated into two self-contained shipping containers with about twice the load-carrying capacity of the telescopic carton assembly. The convertible carton assembly is particularly useful in connection with pre-sorted mail and includes a pair of telescoping cartons. Each of the cartons has an outer panel with upright walls and a movable flap assembly for converting the carton from a portion of the telescopic carton assembly to a self-contained shipping container. Preferably, the movable flap assembly includes a movable panel and a pair of pivotable flaps. The movable panel and one of the flaps are positioned adjacent the outer panel within the interior of the carton when the carton is being used as part of the telescopic carton assembly.