Abstract: A paperboard carton blank including a first panel having side walls connected thereto by scored fold lines formed between a respective one of the side walls and a respective edge of the first panel is disclosed. A second panel is provided having a side wall connected thereto by a scored fold line formed between the side wall and an edge of the second panel. A seal flap is provided and extends a predetermined distance from a predetermined edge of one of the side walls of the first panel, the predetermined edge of the side wall being that edge which extends adjacent to a predetermined edge of the second panel of a carton formed from the blank. The blank also includes opposing end panels connected to each of the side walls and the first and second panels with each of the end walls having at least one die cut edge.

Abstract: A hollow container or carton for an article formed of a single blank which has been suitably shaped and provided with selected fold lines. The carton is provided with a bottom structure which may readily snap open to provide access to the carton. The uppermost edges of both the carton front panel and the rear panel define parabolic curves and the carton side panels include tabs having curved outer edge portions conforming to the uppermost edges of the front and rear panels for alignment therewith and securement thereto.

Abstract: A discarded medical material container comprises a body of sheet material having laminated layers of compact fibrous material and material that is effectively impervious to the passage of fluid. The sheet material is formed into foldable panels that are joined together to define a bottom, sidewalls and a top of the body. The top has a closeable opening for the insertion of discarded material into the container and a closure tab. The top is formed of a first, interior panel of the sheet material having a region that is sectioned to define a plurality of flaps extending inwardly from the contour of the region, so as to define an opening in the first panel of sheet material, and a second, outer panel of sheet material, disposed atop the first panel. The second panel has a cut to define an aperture in the shape of a generally flexible tab overlying the region in the first panel and sized to close the aperture. A slit-score causes each flap to assume a generally downwardly bent condition.

Abstract: Cases and cartons are formed and/or sealed using a specific class of low viscosity reactive urethane hot melt adhesive compositions which provide a fast setting, temperature resistant bond that is not attacked by aromatic oils solvents or petrochemical vapors.

Abstract: The invention relates to a high-integrity closure, sift-proof carton [10], a method and an adhesive dispensing apparatus for producing same. Foamed hot melt adhesive is dispensed in parallel strips from dispensing guns onto the flaps [20], [22], [30], [32] of the carton [10], which are thereafter folded down to close the carton [10]. The strips can be spaced so that a continuous tight adhesive seal is formed, especially by providing a strip pattern interdigitating when the flaps contact each other. Since all strips are provided in parallel, while the carton is moved with respect to the dispensing apparatus, application of adhesive is fast and reliable.

Abstract: A six-sided sealed carton which is formed by folding a generally rigid, unitary, die-cut blank of a composite polymeric material, in which one of the ends is provided with a reclosable pour-out spout that includes an integral part of the blank, at least some of the corners of such carton being self-sealed by webbed areas or gussets which are integral portions of such blank but which are of reduced thickness relative to the major portions of the remainder thereof, such carton being adapted to contain a particulate material which is in direct contact with the inner surfaces thereof. In a preferred embodiment the carton is formed from a die-cut sheet of a composite polymeric material, a major portion of the thickness of which is an expanded polymeric material.

Abstract: A box of the wrap around type for bottles and like products. The box is readily formed from a substantially rectangular blank while maintaining a bottom panel thereof in a flat state and folding front and rear panels upwardly with the front and rear panels carrying end forming panels which, when joined together, complete the box. The bottom panel will also have at opposite ends thereof end forming panels which either may be full height and tucked between the end forming panels carried by the front or rear panels, or in the form of glue flaps which will be disposed externally of the end forming panels carried by the front and rear panels.

Abstract: A disposable pet litter container is disclosed. The container is foldable between a collapsed state for storage and disposal, and an erect state for use. The container includes a lower box portion defining a litter-containing receptacle. The lower box portion includes a bottom, peripheral wall members extending upwardly from the bottom to form the litter-containing receptacle therewith, and a foldable top for covering the lower box portion in the collapsed state. An upper box portion is provided and is selectively extendable from the lower box portion. The upper box portion includes front and rear panels extending upwardly from one pair of oppositely disposed wall members of the lower box portion and are adapted for selectively folding into the lower box portion for storage when in its collapsed state. A pair of side panels are also provided and project upwardly from a second pair of oppositely disposed peripheral wall members and are adapted to form the top when in its collapsed state.

Abstract: A medical waste disposal container has a unitary body structure formed of a substantially flat sheet having a plurality of laminated layers of compact fiberboard, and one or more thin pliable layers of absorbtion resistant plastic material. The laminated sheet material contains a plurality of foldable sheet portions that are scored, wrapped at corners and adhesively joined together to define a bottom, sidewalls and a top of the body structure. The top has an opening, that is closeable by way of a flap formed in the sheet material, for insertion of discarded medical waste. The interior of the container is preferably coated with an absorbtion resistant material to effectively provide a leakproof seal at the intersections of its sidewalls and bottom.

Abstract: A microwave container (2) including a folded body forming a box having first, second, third and fourth sides (4, 26, 6, 28). The sides have first, second, third and fourth side edges, respectively, defining an end (14). A flap (10, 30, 32, 38) extends from each side and is attached at the edge of each side. A sealing region (34) is defined at the intersection of the first flap (10) and each of the adjacent flaps (30, 32) at the corners of the box formed by the first side (4). A notch (40) is formed between the first flap and each of the adjacent flaps before folding. A common seam (44) runs a chosen distance (43) from the corners (18, 20) such that when the first flap and the adjacent side flaps are folded, holes (36) normally formed at the corners are spaced therefrom. The remaining flap (38), opposite the first flap, is folded to cover and seal these holes.

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: An envelope handling system for removing envelopes from an upper level conveyor, placing them in stacks on a lower level bucket conveyor, removing the stacks from the bucket conveyor and side-loading them into cartons, and sealing the cartons, conveying the cartons to a packing area, and forming the cartons into a horizontal column for placement into shipping containers. The system includes a spider feeder for removing the envelopes from an upper level conveyor and discharing them downwardly in a vertical direction, pivoting bottom fingers for receiving envelopes from the feeder and collecting them into a stack, hold back fingers for intercepting envelopes in a second stack above the bottom fingers, and transfer fingers for compressing a stack collected on the bottom fingers and urging the bottom fingers downwardly to place the stack onto the conveyor.

Abstract: A four-sided, sift-proof carton and method of sealing the end flaps of same includes two minor flaps and an inner and outer major flap at the top and bottom of the carton. The inner and outer major flaps are each formed with a width less than the depth of the carton so that when folded a space or gap is formed beneath the outer major flap between the leading edge of the inner major flap and the fold line of the outer major flap. A sift-proof seal is formed between the flaps by applying ribbons or strips of foamed hot melt adhesive along the outer ends of the inner major flap which is folded atop the minor flaps, and by applying strips of foamed hot melt adhesive in a block C shape onto the ends and middle of the outer major flap which is folded atop the minor flaps and inner major flap.

Abstract: The present invention discloses a blank and carton for packaging ice cream or the like comprising hingedly connected cover, rear, bottom and front panels. Left and right end flaps extending from each of the cover, rear, bottom and front panel end flaps. A pocket means formed in each of the carton ends for receiving a portion of the cover panel end flaps adjacent the rear panel for reforming the carton subsequent to the initial opening thereof. The pocket means includes rear panel end flaps forming exterior liners and the corresponding front and bottom panel end flaps forming interior liners. Membrane flaps are hingedly connected to the front panel and left and right front panel end flaps for forming a substantially continuous lip along a portion of the outer periphery of the carton.

Abstract: An ice cream carton is made as a perfect cube with six smooth, unbroken, external surfaces by forming aligned embossments and windows to facilitate adhesion of the carton walls without impairing the external unbroken smooth continuity.

Abstract: In (cigarette) packs, sealing and consequently aroma and moisture preservation are unsatisfactory, particularly because of a lack of sealing of an inner wrapping (tin foil blank 13). With the external appearance and constructive design of a (soft-cup) pack being maintained, the inner wrapping is sealed off by means of bonding strips in specific regions of the overlap or fold. Of particular importance here is a bonding strip (23) in the region of a continuous longitudinal overlap 20 which ensures a considerable increase in leak-proofing.

Abstract: A center special slotted container is shown which is manufactured from sheet of corrugated paper material. The blank is formed such that top and bottom flaps provide parallel edges in knock-down manufactured condition when the manufacturer's glue joint is made up. Before the glue joint is firmly set, this knock-down carton is readily processed in a squaring device of a folder-gluer (a Flexo folder-gluer is an example) to prove a quality manufactured carton, and overcome out-of-square defects.

Abstract: A variable volume package made from two identical or nearly identical package halves is provided. The package has integral corner posts for stack strength which are formed as the package halves are erected from blanks. The package can be used for a class of articles having two orthogonal dimensions substantially constant among articles in the class, with a third orthogonal dimension varying, by providing overlapping flaps having a length at least equal to one-half the maximum length of the third dimension and at most equal to the minimum length of the third dimension.

Abstract: A blank for packing containers having a carrier layer of paper or cardboard and a layer of thermoplastic-coated aluminum foil which is used for generating by means of induction devices the heat required for sealing overlapping plastic layers of the blank in a Z-shaped configuration wherein the aluminum foil layer is removed locally along the sealing regions in outer layers but is kept intact in the inner layer.

Abstract: An insert which is frictionally positioned in the top end of a barrier carton and dimensioned for ready removal through a carton pour spout. The insert includes a central panel and a peripheral flange which is hingedly connected to the central panel at an embossed score line. Removal of the insert is facilitated by the provision of outwardly curved edges in the peripheral flange. A knock-out opening is provided in the central panel for pulling the insert through the carton pour spout.

Abstract: A flat top, thermoplastic coated, paperboard container having weakened lines formed thereon such that the top may be fully opened by breaking through a weakened line at the front and progressively breaking the weakened lines along the sides upon peeling back the cover panel, to provide access to the contents. Provisions are included for covering the weakened lines on the inside of the container to prevent leakage.

Abstract: The present invention briefly relates to a package box (11) for the liquid tight sealing of the contents, preferably a liquid, which box (11) is folded from a cardboard blank, the side of which facing inwardly in the package box (11) is coated with a thin layer of plastic. The closing flaps (12a, 13, 14, 15) extend each from its corresponding wall of the box (11) and are delimited from respective wall by a folding line (17). The longitudinal corner (19) of the box (11) between box bottom and lid is defined by two parallel folding lines (24, 25) and the recesses separating the flaps (12a, 13, 14, 15) terminate at a distance from the folding lines (17) of the flaps (12a, 13, 14, 15). The recesses preferably terminate in a section, the flange (23) of which is parallel to the folding lines (17) of the flaps (12a, 13, 14, 15) the length of such flange portion corresponding essentially to the distance between two parallel corner lines (24, 25).

Abstract: A six-sided or parallelepiped carton which is formed by folding a die-cut blank of a generally rigid, unitary blank of a polymeric material in which a major portion of the thickness of the blank comprises an expanded polymeric material, at least some of the corners of such carton being self-sealed by webbed areas or gussets which comprise portions of such blank but which are of reduced thickness relative to the major portions of the remainder thereof, and a die-cut blank which is adapted to be formed into such a carton.

Abstract: This relates to tamper resistant cartons wherein the outermost closure flap is provided with a sealing flap of which at least a portion functions as a tuck flap and which tuck flap passes between a front panel and a terminal inner panel with a tuck flap portion being bonded on its inner surface to the outer surface of the inner terminal panel in an inaccessible position whereby the carton cannot be opened without rupturing the same to the extent that tampering would be apparent.

Abstract: A food package for cooking popcorn in a microwave oven which comprises an inner pouch containing the popcorn kernels, oils and seasoning, an outer paperboard carton in the form of an inverted truncated pyramid and a stand therefor which is adapted to be packaged inside the carton. When the package is to be used, the outer carton is inverted and opened, the stand is removed, erected and placed in a microwave oven. The inverted outer carton is then placed on the stand which insulates the lower portion of the carton. In this position, the popping area of the package is in a position to be affected by maximum microwave energy efficiency and is protected against heat loss for maximum heat efficiency whereby, a higher ratio of popped to unpopped kernels can be obtained.