Abstract: A reducible volume container includes a package wall having an interior surface and an exterior surface, with at least one tear strip formed in the package wall. The tear strip is defined by a pair of generally parallel frangible tear lines. Each tear line includes a pair of generally parallel creases formed on the interior surface of the package wall, and a linear cut formed in the exterior of the package wall. The linear cut is disposed in an area between the parallel creases and has a depth extending only partly through the thickness of the package wall.

Abstract: A box is formed of a blank of sheet material wherein a filler is sandwiched between an inner liner and an outer liner. A pair of V-grooves is formed parallel to each edge and another V-groove is formed parallel to the pair of grooves on the side away from the edge. The V-grooves of the pair of V-grooves have center lines spaced apart a distance of substantially two thicknesses of the sheet material. The blank is folded upwards at the single V-groove, and then is folded back at the pair of V-grooves to produce successive 90-degree folds. The outer liner extends continuously over the outer side, top edge, and inner side of the resulting double-thickness wall. A similar technique can produce a box with multiple-thickness walls.

Abstract: A box is formed of a blank of sheet material wherein a filler is sandwiched between an inner liner and an outer liner. A dado groove is formed parallel to each edge and a V-groove is formed parallel to the dado groove on the side away from the edge. The blank is folded up at the V-groove and then is folded back at the dado to produce a 180 degree fold. The outer liner extends continuously over the outside, top edge, and inner side of the resulting double thickness wall.

Abstract: A liquid tight rectangular paperboard container (10) is provided with a separate opening tab (17) secured to the top panel (15) thereof which enables the package to be opened to provide a fully open top. In particular, an elongate plastic window (18c) is formed along the front fold line (15a) connecting the top and front panels (15 and 11) of the package, and has ends (18d, 18e) connected to spaced apart arcuate shaped perforated lines (18a, 18b) extending to the rear corners of the top panel. In the construction of the package, the opening tab (17) is first ultrasonically welded to the outside surface of the package blank, and then the window section (18c) is pressed against and welded to the inside surface of the tab. A slit (40) which is formed in the window enables any air trapped between the window and the tab to escape during the welding operation.

Abstract: A tote container which is cut to form a blank from a single sheet of double-faced corrugated plastic material, the blank being scored to define individual panels, and those panels folded to an upright position to define a receptacle region. The corrugations of the plastic material define a grain, and the blank for the tote container is oriented upon the sheet of corrugated plastic material such that the lines of grain cross the scored fold lines separating the panels at an acute angle thereto, thereby permitting individual lines of grain to extend under the receptacle region of the tote container and traverse the tote container both laterally and longitudinally. This prevents the planar plies of the double-faced corrugated plastic sheet material from being perforated, and the convoluted intermediate ply from being crushed along the length thereof, when the blank is scored.

Abstract: A disposable biodegradable insulated container includes a smooth walled frustoconical inner cup received within a frustoconical wrap. A series of angularly spaced apart fluted indentations formed in the outer surface of the wrap extend longitudinally of the wrap and terminate in spaced relation to the upper and lower edges of the wrap. The indentations define corresponding angularly spaced apart and inwardly directed ribs on the inner surface of the wrap which engage the sidewall and maintain portions of the wrap intermediate the ribs in spaced relation to the sidewall. The upper and lower marginal portions of the wrap are adhered to the sidewall. The thickness of the wrap is greater than the distance between the inner surface of the wrap and the outer surface of the sidewall measured from the central axis of the container in a radial direction and between the ribs. A method for making the container is also disclosed.

Abstract: The invention concerns a female die for a paperboard stamper. A thin metal plate is removably mounted by adhesive tape on a counterplate of the paperboard stamper, and a female die member has a groove corresponding in shape to the shape of a male die of the paperboard stamper.

Abstract: A container assembly which is especially adaptable to form a final presentation enclosure is constructed from a flat blank of material. The flat blank is provided with a plurality of fold lines forming a bottom wall, side walls, and top wall portions which act in conjunction with one another to enclose a space. The side walls are connected by joining portions constituting bellows-type folding members. The container is constructed in accordance with the normal hand movements of a person assembling it, wherein the joining members are initially easily folded inwardly thereby drawing up the respective side walls to which they are attached. The natural grasping movement of the hands is then used to complete assembly. The container does not utilize tabs, glue or other fastening means normally associated with a variety of containers. The top walls are formed so as to be exposed at the top of the container to allow securing of the top wall portions by any suitable means.

Abstract: The present invention relates to a method and apparatus for making display boxes having windows made of substantially rigid plastic material. The boxes comprise substantially rigid opaque material, such as paperboard, in combination with substantially rigid plastic material. The substantially rigid plastic material includes at least one fold line or groove which cooperates with a fold line in the opaque material when the box is set up. The present invention provides a method and means for making such boxes in a single machine from a supply of blanks of the opaque material and a roll of ungrooved plastic material. The machine comprises means for feeding of the opaque blanks, feeding of a length of the plastic material, means for least one groove in the length of plastic material, means for forming at cutting the grooved plastic material into sheets, and means for juxtaposing and joining the blanks of opaque material and the cut plastic sheets of material.

Abstract: There is disclosed herein an apparatus for forming container blanks from cardboard or other paperboard-like substrates. The apparatus includes a press, platens, a coated plate member, and a die-and-knife assembly. The coating on the plate is impressible for accommodating irregularities in the machine, platen surface, or knife so as to permit the knife edges to substantially lie in a cutting plane. The coating is generally an organic coating which is liquid just above room temperature and solid at room temperature. The impressions are made in the coating and the coating is then hardened for use by polymerization such as by ultraviolet light.

Abstract: A display container having a display window to display articles of manufacture held in the container is provided with at least three panels and a bottom panel which is formed from a cut-out section partially cut from one of the panels, yet remaining connected to at least one panel so that the cut-out section can be folded between the panels to form the bottom panel. A second cut-out section can be partially cut from another panel so that it remains connected to at least one panel whereby it can be folded to form a top panel for the container.

Abstract: A containing package of cardboard for flowers and plants and the method for manufacturing such a package, said package being pliable in such a manner that the flowers and plants can be forwarded safely in it and can be displayed at delivery in this package in its partly fold-out position, which functions as a vase or as a flower-pot, having a bottom (1), side planes (2) and connecting flaps (3).

Abstract: A rectangular box for transporting multiple pizza pies, with one or more pairs of short horizontal cuts in each corner, such that they form shelf supports when poked into the box. The shelf supports are configured such that they provide ventilation for the pizzas, and allow the shelves and pizzas to be easily removed from the box. The box, a cardboard version of it, and the method for making it are all disclosed.In addition, a particular type of box, with a fold-over top with flaps on three sides of the box, which fit into the box as the top folds down, and a separator stand in the center of each pizza pie for support of the pie above, are disclosed.

Abstract: There is disclosed herein an apparatus for forming container blanks from cardboard or other paperboard-like substrates. The apparatus includes a press, platens, a coated plate member, and a die-and-knife assembly. The coating on the plate is impressible by the back edge of the knife for accommodating irregularities in the machine, platen surface, or knife so as to permit the knife edges to substantially lie in a cutting plane. The coating is generally an organic coating which is liquid just above room temperature and solid at room temperature. The impressions are made in the coating and the coating is then hardened for use by polymerization such as by ultraviolet light.

Abstract: A paperboard carton blank consisting of a first panel having side walls connected thereto by scored fold lines formed between a respective side wall and a respective edge of the first panel is provided. The blank further includes a second panel having side walls connected thereto by scored fold lines formed between a respective side wall and a respective edge of the second panel with one of the side walls of the first panel and one of the side walls of the second panel being congruent. The second panel additionally includes a region of weakness formed therein for allowing access to the interior of a formed carton. This region of weakness includes a tab extending from the second panel, at least one uncut line of weakness formed in the second panel and at least one cut line of weakness substantially parallel to the uncut line of weakness and formed in the second panel.

Abstract: An improved flexible semi-bulk container utilizing rigid panels associated with the side walls of the flexible container to provide rigidity and enable the container to stand alone when filled with fluidized material such as fluidized solids, semi-solids, slurries and liquids.

Abstract: A shipping carton or container that can be readily opened and converted into a display tray without having to use a knife or other sharp instrument. The carton is formed from a blank having four sidewalls and hingedly connected top and bottom end panels. The sidewalls have a line of severance running circumferentially around the carton that defines a continuous butt joint separating the carton into a top cover section and a bottom tray section. A wide tape having a narrow tear filament or strip attached to its inner surface is adhesively attached to the sidewalls' outer surface such that it bridges the butt joint and holds the carton's top and bottom sections together, the tear strip being substantially superimposed over the butt joint. Pulling the tear filament neatly splits the wide tape and separates the carton's top and bottom sections.

Abstract: An adjustable mounting block assembly, particularly for embossing die elements used with cutting, scoring and/or punching dies, having a block adjustably mounted within a frame. The perimeter of the block is spaced from the frame, and adjustable opposed spacers extend between the block and the frame so as to adjust the position of the block within the frame.

Abstract: Apparatus for imprinting or impressing a sheet of material such as cardboard intended to be made into a die for making a folding box or case, comprises a stamping plate for carrying the sheet and co-operable with a tool. The stamping plate lies on a table plate of a frame structure which has holders for releasably carrying a form which extends parallel to the table plate, and at least one bridge assembly which extends movably above the table plate. A carriage is carried on the bridge assembly and moves transversely with respect to the direction of travel thereof. The carriage carries at least one vertically movable pressure member directed towards the table plate.

Abstract: A container blank particularly suitable for carrying liquids formed from a paperboard web fed in from a roll, the upper and lower edges of which are provided with short cut lines along the score lines forming the side panels. The method for obtaining such as blank consists of a set of rectilinear cut lines spaced apart from each other in correspondence of said upper and lower edges executed at the same time as said short cut lines or during a following stage, the lips defined by short cut lines and by score lines parallel to the edges being folded over and brought into contact with the corresponding panels simultaneously with the carrying out of short cut lines or later after the side seaming of the blank; in this way the container can selectively exhibit different types of top and bottom end closures.

Abstract: Disclosed is a carton formed from a unitary paperboard blank and having a collar-like lifting flange at one end thereof for receiving a lifting blade. The carton includes a tubular body having a number of side walls formed by axially-extending fold lines. The blank from which the carton is formed includes two or more transverse extending wall portions extending across two or more side walls of the carton. The wall portions are folded upon one another and upon two or more side walls of the carton so as to continuously overlie two or more side walls of the carton and the axial fold lines joining those side walls. Thus, an unbroken corner of the lifting flange overlies an outside corner of the carton. The invention is particularly useful with lifting blades having an L-shaped cross-section which mate with an outside corner of the carton and overlie two adjacent side walls thereof.

Abstract: A one-piece paperboard container and closure member telescopically opens and closes and, in the process of opening, reveals hidden matter printed on the container body portion, the closure member automatically frictionally locking onto the container body portion in the closed position. A single paperboard blank has a first and second set of four serially connected rectangular panels, a corresponding set of connecting strips connecting the first and second set of panels and cooperating therewith to provide a top for the closure member and to provide telescopic movement of the closure member relative to the container body portion, a series of proportionately sized V-cuts between each of the first set of panels, just below and adjacent to the strips, and two pairs of converging cut score lines and a central perforated score line at non-adjacent corners of the constructed container body portion, the converging cut score lines having a predetermined height less than the height of the closure member.

Abstract: A parallelepipedal gable-topped bulk-material container made out of a multilayer plastic laminate and with its head sealed by a ridged seam, leaving two superimposed triangular folding tabs at the ends of the seam, whereby each tab is wrapped out and around a straight buckling edge on each side of the container and the container material has longitudinal and transverse or sloping scores for the edges of the body and floor or gable edges. To maintain the integrity of a ridged seam when manufacturing and sealing thick-walled containers in a filling machine and hence eliminate ridged-seam fracture, the container has at least one auxiliary score for each vertical body score in the vicinity of the gable and out of alignment with the body score.

Abstract: An apparatus and method is provided for progressively converting each blank of sheet material in a stream of moving blanks into a clamshell assembly having interconnected lid and bottom portions. The apparatus includes a female die assembly having first and second mold cavities, an upstream control system for aligning one portion of each blank at a lid-pressing station defined by the first mold cavity, and a downstream control system for aligning a remaining portion of each blank at a bottom-pressing station defined by the second mold cavity. A male die assembly is provided for simultaneously forming a lid portion in one blank of sheet material and a bottom portion in an adjacent blank of sheet material. In particular, during each pressing cycle, the male die assembly simultaneously presses an initial blank at the bottom-pressing station and a succeeding blank at the lid-pressing station to produce the equivalent of a whole clamshell assembly on a single stroke of the male die assembly.

Abstract: A one-piece corrugated fiberboard blank and the triple-end container assembled therefrom wherein the blank includes a rectangular bottom panel with a side panel hingedly attached to each of the two opposite sides thereof. Hingedly attached to the remaining two opposite sides of the bottom panel are first, exterior end panels, each having a hand-hold slot formed therein. Second, intermediate end panels sized in width to extend approximately half way across the first end panel in the assembled container are hingedly attached to the opposite ends of each side panel. Each intermediate end panel has a cutout complementary to the hand-hold slot in the first end panel and includes an extension hingedly attached thereto that folds back upon the intermediate end panel to form the third, innermost end panel.

Abstract: This invention relates to a display box of the kind comprising a part of an opaque material such as cardboard and an opening overlapping or straddling at least one edge of the box and which is shut off by a sheet of a plastics material. According to the invention the sheet is formed from a rigid plastics material. The sheet may be formed by a single sheet and have two preparatory or incipient folds produced by pre-scoring or pre-grooving along the lines corresponding to the edges which are to be produced, the edges of the plastics sheet having notches at the extremities of each incipient fold. The invention also provides a method of and apparatus for manufacturing the box.

Abstract: A folded paperboard tray suitable for cooking food products contained in the tray in a microwave oven has an interior surface which is coated with a styrene methyl methacrylate copolymer to prevent liquid seepage from the food product through the paperboard. The tray has a peripheral flange formed thereon which is connected to the remainder of the tray by means of a cut score fold line. The use of the cut score fold line prevents the copolymer coating on the tray from tearing away from the edges of the tray when the edges are cut from a stock sheet of coated paperboard.

Abstract: A paperboard container having a side wall formed from a single blank. A band or zone along one edge of the blank is provided with a plurality score lines each of whose edges are non-parallel to thereby yield a wedge score indentation. The blank is rolled to assume a round or rectangular cross-section tube, and the band is bent inwardly and sealed against a closure disc or panel. By virtue of the wedge shape of the scores, the resultant gathers in the band are substantially confined within the wedge scores to yield a more uniform seal between the inwardly bent band and the closure disc or panel.

Abstract: A method of slitting selected plies of multiply paperboard blanks by compressing narrow portions against an anvil surface (preferably soft) and cutting one or more plies along the compressed portions. The apparatus includes a cutting rule (straight or annular) with compression rules on each side to compress the blanks simultaneously with the cutting. The method and apparatus may be used in conjunction with conventional flat-bed or rotary diecutting.

Abstract: The present invention provides an installation for the continuous production of presecured folded cardboard packing cases, this installation comprising essentially a glueing unit, a folding unit, a two-speed positioning station and a stapler, disposed in line.According to the invention, the positioning station comprises two devices (17 and 34) for transferring the sheets, the first of which (17) is formed by mechanical chains (18) with retractable studs (24a to 24d) and the second (34) consists of a "drive sandwich" formed preferably from two superimposed trains of mobile belts (37 and 52), the upper belt train (37) being moveable in height. These first and second transfer devices may be made respectively inactive and operational, in response to setting the glueing unit alone in operation and respectively operational and inactive in response to setting the stapler in operation.

Abstract: There is disclosed a package formed of a carton stock having front and rear main panels, side panels, and a set of end closure flaps, which comprises dust flaps, a cover flap, and a sealing flap, and coated, at least on the end closure flap, with a heat sealing coating which is cut and scored in a manner such that the sealing flap can be pulled away from the cover flap and the cover flap broken away to open the carton. The sealing flap has a tuck-in tab and the cover flap a complementary punch-in for effecting reclosing of the package.

Abstract: A packing laminate which is intended to be converted into packing containers is often provided with crease lines in order to facilitate folding and shaping. At the places where crease lines cross each other a multiple folding of the laminate takes place on conversion into packing containers which, among other things, means that small cracks are formed in the different material layers, so that the tightness of the packing container is put into jeopardy. In accordance with the invention, a packing laminate is proposed in which these difficulties are overcome by providing the laminate with specially designed auxiliary crease lines which in the region of the laminate, where the folding lines cross each other or meet, replace the (main) crease line guiding the folding line. The auxiliary crease lines are situated at such a distance from the main crease line that the folding line is not affected, that is to say, the folding line will after folding not coincide in any part with the auxiliary crease lines.