Abstract: The interior of the paperboard carton is subdivided into two equal volumes by means of an internal divider panel which is formed as an extension of one end of the blank which is used to form the carton. The carton has front and back walls, side walls, and top and bottom closure flaps foldably connected to the front, back and side walls. The carton is formed from a one piece blank having opposite ends thereof overlapping each other and glued together at the center of the back wall, the divider panel is formed as an extension of one of the overlapping ends of the blank and is set back on that end of the blank so that the divider panel has basal marginal legs between which there extends a glue tab which is glued to the other end of the blank to form part of the glue seam joining the ends of the blank together. A paperboard material savings is realized by setting the divider panel back to form the marginal legs.

Abstract: An apparatus for applying latex areas to the seal flaps of paper envelopes and drying the latex is adapted to be placed either "in-line" or "off-line" with respect to a die-cut high speed envelope manufacturing machine. The apparatus includes a rotatable electrically insulated drum which acts as the ground for a radio frequency dryer (dielectric dryer) whose positive electrodes are adjustably spaced from the drum surface. The envelopes, during application of the latex and its drying, are held between flexible belts having projecting guides and are conveyed, still between the belts, by the rotating drum beneath the electrodes, with the latex exposed to the radio frequency drying.

Abstract: An aqueous starch-based adhesive comprising: (a) water; (b) corn starch or wheat starch; (c) a carboxylated styrene-butadiene latex; (d) a thickener; and (e) a crosslinking agent. The thickener and cross-linking agent are collectively present as a minor component. A preferred thickener is a mixture of hydroxyethylcellulose and ammonia and the preferred crosslinking agent is a mixture of a ureaformaldehyde resin and glyoxal. The adhesive has a solids content of between about 35 and about 50 weight percent and pH ranging from about 4.5 to 7.0. The aqueous adhesive can be used to provide corrugated paperboard at rates ranging from 300 to 550 linear feet/minute and has a stable pot life of up to one week. It results in little or no corrosion to corrugating equipment and can be used in the same application and storage systems with conventional starch adhesives. Preparation of the adhesive is simplified because it need not be heated.

Abstract: A container made from an integral blank in which a solid bottom wall is provided with hingedly connected side walls and ends walls which may be folded normal thereto. The end walls are provided with additional panels which may be placed in surface-to-surface relation with the interior of the side walls and secured thereto in any suitable manner as by any automatic machinery such as a "tray former". A pair of the securement panels from opposite end walls and opposite corners of the box have extensions which may be folded inwardly toward the opposite side wall panel to form a central partition. These extensions are longer than half the transverse distance between the opposite side walls so that portions of the extensions may meet in surface-to-surface relation to form a partition.

Abstract: A filler spout for attachment to an automatic bag filling machine whereby freely flowable material is forceably driven through the spout into the interior of the bag. The spout is inserted through an entry opening in the side of the bag during the filling operation. During the filling operation both ends of the bag are sealed. The spout comprises an outer shroud portion inside of which a material delivery tube is disposed. The end of the shroud which is inserted into the bag is closed with a blunt curvilinear contour for easy insertion. An opening is disposed in the side of the shroud adjacent the closed blunt end, and the bore of the delivery tube communicates with the opening in the side of the shroud. The delivery tube has a curvilinear axis so that material fed through the delivery tube is deflected down into the interior of the bag toward one of the sealed ends so as to minimize damage to the side walls.

Abstract: A code dater for coding tray blanks being formed into trays in a tray forming machine comprising means attached to said machine for maintaining each of said tray blanks in a semi-rigid condition as said blanks move through said machine, and means for printing coded information on said blanks as they are maintained in said semi-rigid condition.

Abstract: A fiberboard container for the shipment of fragile and irregularly shaped articles includes a top tray, a bottom tray and, in some cases, a protective sleeve between the trays. Each of the trays has cavities to hold the articles, the cavities being formed in a pad of the tray. Each of the trays is constructed with a top pad and a bottom pad, which pads may be of laminated paperboard panels, and spacers of laminated fiberboard, to separate the top pad from the bottom pad.

Abstract: An improved sleeve valve for use in a flexible paper bag which is adapted to package granular products. The sleeve is mounted in the open mouth located in a corner of the flexible bag and adapted to receive the filler spout of a product-dispensing mechanism. The sleeve valve comprises a tubular plastic sleeve which is adhered to both the open mouth of the bag and to a paper backing panel. The sleeve valve is adhered to the backing panel by three glue bars which are spaced from each other and spaced inwardly from the mouth of the sleeve valve. The rear portion of the paper backing panel is slit lengthwise along its longitudinal center and the rear portion of the plastic sleeve valve adjacent the backing panel is also slit lengthwise along its longitudinal center in substantial juxtaposition with the slit in the paper backing panel.

Abstract: A lid insert is provided for releasable connection to a plastic lid having a subtantially flat top surface and an upwardly and inwardly projecting peripheral bead disposed above and spaced from the top surface of the lid. The lid insert is made of paperboard material having a planar configuration generally corresponding to the configuration of the flat top surface of the lid. The periphery of the planar lid insert includes a plurality of alternating indents and nodes. The area defined by the outermost points of the insert is greater than the area defined by the upwardly and inwardly projecting bead. This peripheral configuration of alternating nodes and indents facilitates the initial placement of the insert on the lid and enables the insert to compensate for the different expansion characteristics of the lid and the lid insert.

Abstract: A multiple access carton particularly adapted for food products, comprising top, bottom and side wall members integrally connected by fold lines to form a carton body, major and minor panels on each end of the carton for detachably interlocking with each other to form an end closure and a tear strip formed in and extending across the top wall and being of sufficient width whereby the content of the carton may be retrieved through either of the end closures or the top wall when the tear strip is removed.

Abstract: A package for containing a preselected amount of a product in the form of a pill or the like is adapted to be converted for use as a cup for containing liquid and includes a pair of sidewalls made of paperboard which are joined together along three mutual edges thereof, the fourth mutual edges defining the top of the cup. A support flap is connected by a perforated score line along an edge of one of the sidewalls at the top of the cup and has a plastic blister bonded to one face thereof within which a pill or other product may be contained. The support flap is provided with an aperture therein registering with the interior of the blister and a frangible closure, preferably a metal foil, is secured in overlapping relationship to the aperture to prevent loss of the product prior to the time of use. Spaced fold lines in the sidewalls allow folding of the package to a compact condition for storage, and the support flap may be torn away from the top of the cup during use to allow ready access to the product.

Abstract: A filler sleeve is disclosed for use in conjunction with a bag adapted to contain a powder, fibrous, flake or granular product. More specifically, a filler sleeve is disclosed comprised of an elongated tubular member which is connected to the top end of the bag. The tubular member includes an open end which is contiguous with a filler opening provided in the top end of the bag. The opposed end of the tubular member is heat sealed or locked by folding. A longitudinally extending slit is provided in the tubular member disposed on the bottom surface thereof. In use, when the bag is filled by introducing the product by air flow or by gravity, through a filler nozzle which is inserted into the filler opening and into the tubular member, the product is deflected downwardly into the bag thereby inhibiting the likelihood of blowout of the side panels.

Abstract: Gum applying apparatus including a pair of gum applying dies mounted on a common shaft for applying gum along and adjacent to the side edges of an envelope blank during the manufacture of the blank into an envelope. Each of the dies includes a central circular plate and a pair of circular sectors spaced from each other about the circumference of the circular plate. The sectors are in contact with a gummer roll which transfers gum from a container to the sectors. The gum is applied by the sectors to spaced envelope blanks on a conveyor belt beneath the sectors. The space between the sectors is adjacent the conveyor when the space between the blanks on the conveyor traverses the gum applying station thereby precluding gum from being applied to the belt running through the station; but enabling the gum to be applied continually to the envelope blanks. Means are also disclosed to control the amount of gum transferred to the gum applying die sectors.

Abstract: A laminated packaging material suitable for use in packaging products in pouch form, comprises (A) as an outer surface, a substrate of paper or film which may be printed and/or primed; (B) an adhesive layer, (C) a metallic foil, preferably aluminum, (D) an optional primer, (E) a barrier coextruded layer comprised of two or three-layer combinations of ethylene-methyl acrylate copolymer and polyester, and (F) an optional polyolefin film layer. Pouches prepared from this packaging material provide a chemical barrier between the foil and the product contained therein and are especially useful where the foil needs to be protected from the product.

Abstract: Heat transfer paper is provided having applied to at least one surface thereof from about 1/2 to 5 pounds per side of a high-volume, liquid swellable material selected from the group consisting of clays and starches.

Abstract: A food container and a cover for the container, the cover being of the type which is secured to the container and is formed with rupturable cut score lines so that the cover can be neatly and easily torn off the container. The cover is formed with an interrupted perforated line adjacent to the rupturable cut score lines so that stresses produced at the periphery of the cover when the container is assembled are at least partially lowered to prevent the cut score lines from prematurely rupturing during assembly of the container. Containers of this type are typically used for packaging popcorn which is to be popped in the container.

Abstract: A shadow display carton and blank for same with a slanted side shadow panel and a lower vertical panel to frame the article to be displayed and a die cut folded portion to support, cushion and restrain the article away from the bottom of the carton. The bottom of the carton is designed to permit end loading on conventional automatic seal end equipment.

Abstract: A probe system is provided which may be removably installed in-line in a pressurized pipe line to determine the pH of the fluid flowing therethrough. The probe system comprises a mounting means exteriorly secured to the pipe line, a valve means in said mounting means and a cap means secured to the mounting means and having an opening therein. An elongated pH probe is inserted through said opening and is secured by said mounting means while the probe tip is disposed within the pipe line. The probe includes a transducer for converting the acidity of the fluid flowing through the pipe line to an electrical signal representing the acidity, and a smooth, adherent plastic coating is provided on said probe to define an elongated sheath with a uniform, round circumference. A sealing means seals against the sheath to prevent fluid flow past the cap means, said sealing means permitting movement of the sheath relative to said cap means upon installation and removal of the probe within the pipe line.

Abstract: An improved container comprising an open tray assembly and a cover assembly which is placed over the open tray assembly after the open tray assembly is packed with articles, such as fresh produce. Side flaps on the cover assembly are folded over and attached to the side walls of the tray assembly. The top panel of the cover assembly has an opening and is provided with tear lines adjacent said opening to form closure panels which will permit the cover to be easily opened and reclosed.

Abstract: A one-piece fiberboard carton having an integral dispensing flap. A tear strip is drawn along an edge of the dispenser flap which is formed intermediate the top and bottom edges of the front surface of the carton so that the flap may be pulled out of the plane of the front of the carton and disposed at an angle with respect to the carton so that when the carton is placed on a side, product stored within the carton can be dispensed by gravity feeding it through the opening adjacent the dispenser flap. Alternatively, the dispenser flap may be taped by adhering a tab to the front wall of the carton which may be cut along a line to open the same. Oppositely disposed web corners attach the dispenser flap at an acute angle to the front wall of the carton so that when it is opened, the product will not fall from the carton unless the carton is intentionally placed on its side in a dispensing position.