Abstract: A process for producing partitioned packages by which a first film is formed into an elongated inner tube and a second film is formed into an elongated outer tube surrounding the inner tube. Reactive components are filled into the inner and outer tubes as the tubes are formed to maintain the reactive components separate from each other. Only the outer tube is actively engaged to advance the tube longitudinally. Frictional forces from the advancing outer tube are applied to the component within the outer tube and, in turn, are applied to the inner tube thereby advancing the inner tube at a rate substantially the same as the outer tube.

Abstract: A heat-shrinkable backseamed casing film comprises a first layer, a second layer, and a third layer, with the first and third layers being outer layers and the second layer being between the first layer and the third layer. The first outer layer serves as an inside casing layer, and comprises polyolefin; the second layer comprises polyester and/or polyamide; the third layer serves as an outside casing layer and comprises polyolefin, polystyrene, and/or polyamide. The second layer has a thickness of at least about 5% of a total thickness of the heat-shrinkable casing film. Alternatively, the first layer comprises polyolefin and has a surface energy level of less than about 34 dynes/cm; the second layer comprises a polyamide having a melting point of at least 300° F.; and the third layer comprises polyolefin, polystyrene and/or polyamide. A package comprises a cooked meat product within the backseamed casing.

Abstract: A tubular composite container includes a paperboard body ply wrapped into a tubular shape, and a polymer film liner ply wrapped into a tubular shape and adhered to the inner surface of the body ply. The liner ply has a circumferential length when unwrapped and flat that is less than that of the body ply so that the liner ply is substantially uncompressed circumferentially. A strip of polymer film liner material is wrapped onto a mandrel and overlapping edge portions of the liner strip are heat sealed together by first preheating the liner strip to a temperature below the sealing temperature of the heat seal material on the edge portions of the liner strip, and then further heating the overlap region of the liner strip to at least the sealing temperature to cause heat sealing of the edge portions. A paperboard strip is coated on an inner surface with adhesive and is then wrapped about the liner and adhered thereto.

Abstract: Covers, containers, multi-ply insulators and methods are disclosed for maintaining a desired thermal environment for carried or conveyed materials. The insulating cover of this invention for use over a liquid supply tube of the type associated with body mountable hydration pack system includes a multi-ply envelope having outer and inner material layers, the outer layer having an outwardly facing reflective surface, preferably a silver MYLAR with knit backing. The inner layer includes an open cell foam with a smooth, inwardly facing, lining.

Abstract: A composite container having a detachable liner and a method for making the container are provided according to the present invention. The method includes providing a tubular body ply formed of a paperboard material and adhering the liner ply using a standard adhesive applicator. The method also includes heating a heat-releasable adhesive disposed between the liner ply and the body ply such that the liner ply substantially releases from the body ply. The liner ply remains adhered to the opposed ends of the container, thus providing a free medial portion between the opposed ends that can move inwardly if a negative pressure is created within the sealed container, thus equalizing the pressure within the container with that outside the container.

Abstract: An apparatus for loading a liner into a container made of a flexible material has an elongate tube into which the liner is inserted with its free end extending slightly beyond the end of the tube and over and onto which the container is received whereby the free end of the liner is generally aligned with a corresponding end of the container such that an operator may grab the corresponding ends of the liner and container and generally simultaneously remove the container and liner from the tube so the liner is received interiorily and stretched out within the container. This process is relatively simple and can be accomplished by a single operator to reduce the cost and time needed to insert a liner into a container. The apparatus can be used with containers having a spout or access opening in one or both of a pair of opposed end walls.

Abstract: An easy-open container has a spirally-wound paperboard bodywall layer, interior barrier liner layer and outer label layer forming as easy-open seam extending spirally between the ends of the container. Easy-opening of the container is enhanced by the provision of pull tabs formed by superimposed and bonded longitudinal edge portions of the bodywall layer and label layer and an easy-open panel formed by diverging lines of score cuts formed in the bodywall layer to initiate and aid in easy-opening of the container along the spiral seam.

Abstract: A cuffing assembly for flexible bags inserted into a receiving open carton includes cuffing fingers at each carton corner. The fingers are movable between a retracted position for insertion into a bag and an extended position in which they can overlap the carton corners. Air is discharged through air outlets adjacent the outer ends of the cuffing fingers to minimize frictional forces between the bag and cuffing fingers to prevent tearing of the bag as the cuff is being formed and during subsequent retraction of the cuffing fingers.

Abstract: A cuffing assembly for flexible bags inserted into a receiving open carton includes paired cuffing fingers that span each carton corner. The fingers are movable between a retracted position for insertion into a bag and an extended position in which they can overlap the outer surfaces adjacent to each carton corner. Diagonal clamp forces can be applied to the cuffed bag between the fingers of each pair as required.

Abstract: A casing article is disclosed which includes a shirred casing having a tubular leader extending through its bore wherein one end of the leader is attachable to a web for drawing the web through the bore of the shirred casing.

Abstract: Discrete sheets of separator material for use in dry cells are introduced tangentially into an annular clearance between the cylindrical internal surface of an outer tool and the cylindrical peripheral surface of an inner tool, and the inner tool is rotated about its axis while one or more spring-biased rollers urge the sheet in the clearance against its peripheral surface so that the sheet is converted into an inner tube which tends to expand radially and is introduced into an outer tube in response to axial shifting of the inner tool. A shoulder between the inner tool and a support for the inner tool pushes one end face of the inner tube from the clearance, and the inner tube is free to expand radially into contact with the internal surface of the respective outer tube in response to complete expulsion from the outer tool.

Abstract: In a method and apparatus for manufacturing two-ply agricultural storage bags, two supplies (36, 38) of flexible tubular materials are positioned on opposite sides of feed wheels (26) mounted on a generally cylindrical frame structure (24). The inner material (36a) from the first supply (36) extends through the frame (24) and outwardly around the feed wheels (26). The outer material (38a) from the second supply (38) extends around the feedwheels (26) in surrounding engagement over the inner material (36a). Actuation of the feedwheels (26) effects simultaneous advancement of the materials (36a, 38a) around the frame (24) so that a bag can be collected at the lower end of the frame.

Abstract: The invention provides a container preferably made from sheet plastics comprising a bag containing a tubular valve member, the bag being sealed with a seam at each end, the top seal having an opening therein for entry of an access tube into the valve member, and the valve member having a sealing seam which facilitates piercing of the access tube through the valve member into the bag. A second bag may be provided within the first bag.The invention includes a machine for making the containers continuously from sheets of material.

Abstract: In a method and apparatus for manufacturing two-ply agricultural storage bags, two supplies (36, 38) of flexible tubular materials are positioned on opposite sides of feed wheels (26) mounted on a generally cylindrical frame structure (24). The inner material (36a) from the first supply (36) extends through the frame (24) and outwardly around the feed wheels (26). The outer material (38a) from the second supply (38) extends around the feedwheels (26) in surrounding engagement over the inner material (36a). Actuation of the feedwheels (26) effects simultaneous advancement of the materials (36a, 38a) around the frame (24) so that a bag can be collected at the lower end of the frame.

Abstract: A composite container capable of accommodating an internal vacuum environment within a tubular body of spirally wound paperboard or similar paperbase materials. A hermetically sealed liner is provided coextensive with the interior of the tubular body and adhesively secured thereto throughout substantially the full extent of the interior surface of the body. The liner is spirally wound, defining a spiral overlapped seam with the overlapping edge portion including an underfolded edge flap folded about a fold line prior to adhesive engagement with the overlapped edge portion. The seam fold thus formed has the interior thereof in direct communication with the paperbase body and is capable of ballooning inward, through the entire length thereof, upon generation of a vacuum atmosphere with the container. The vacuum atmosphere can thus be accommodated without affecting the structural integrity of the container.

Abstract: A composite container comprising a tubular body formed of spirally wound plies of paperboard or the like and an internal vacuum accommodating liner substantially coextensive with the length of the tubular body and adhesively affixed solely at the opposed ends thereof to the tubular body. The container is completed by the mounting of opposed end caps which are hermetically sealed to the adhesively secured opposed ends of the liner for the accommodation of an internally developed vacuum within the liner.

Abstract: A method for providing identificational coloration on a paper ply of a yarn tube or similar article, the invention comprises reverse printing of a dye onto a pervious paper which is coated on the outer surface with a transparent polymer coating, the coating being impervious to the dye. According to the invention, the dye penetrates through the paper but not through the polymer coating, the informational coloration and/or pattern of the dye being clearly visible through the polymer coating to allow ready identification of the yarn or other material carried on the tube.

Abstract: Blanks which are made of cardboard or the like and wherein the neighboring panels are flexible relative to each other are converted first into flat tubular preforms which are thereupon expanded prior to a change of orientation and introduction into a filling machine. The conversion is carried out on a horizontal support during stepwise transport of successive blanks along a stationary elongated one-piece flat pattern having progressively narrower portions at several successive deforming stations. At the first deforming station, a lap which is integral with one outermost panel of each blank is flexed relative to the respective outermost panel; at the second deforming station, the lap and the respective outermost panel are folded over the adjacent portion of the pattern; and the other outermost panel is bonded to the lap at the third deforming station.