Abstract: A method and apparatus for forming a plastic liner bag from a roll of plastic sleeve material and inserting the liner bag snugly within and over the upper edges of a bulk container.

Abstract: A bag inserter machine having pinch rolls for automatically unwinding a perforated bag roll one bag length, bag opening and separating assemblies to cooperatively grippingly engage the leading bag of the bag roll and separating it therefrom along perforations and then opening the bag, an inserter assembly movable into the opened bag for moving the opened bag into a case on a conveyer and cuff the upper portion of the bag over the upwardly extending case top flaps, and controls to stop a case on a conveyer in a position to have a bag inserted therein, stop the drive to the pinch rolls after unwinding the bag roll a bag length, then the bag opening and separating assemblies to grippingly engage the bag to separate it from the bag roll, then open the bag, thereafter operate the inserter assembly to insert and cuff the bag and retract the inserter assembly and then allow the conveyer to move another case to have a bag inserted therein, and automatically continue the cycle of operation.

Abstract: A method of installing a continuous moisture proof essentially disposable film liner within a conventional cargo trailer to protect moisture sensitive cargo during shipment. A polyolefin bag is inflated directly into an empty tractor trailer by attaching the lower edge of the bag opening along the bottom of the doorway of the trailer and blowing a gentle stream of air into the bag as sufficient tension is applied to the upper edge and surface of the bag to direct the air to the rear of the trailer. In this manner, the bag inflates from the rear of the trailer forward, thus pushing the air trapped between the bag and the inside of the trailer out the open doorway without the bag exiting the trailer. Once the bag is properly inflated and in contact with the inside of the trailer, it has been found that it tends to remain in place for sufficient time to load the cargo, even without continued use of the blower.

Abstract: For the fabrication of a bag-in-box (BIB) package, there is first provided a semifinished, collapsed BIB package wherein a flattened bag is placed within a collapsed box and secured to at least one of its inside surfaces by means of an adhesive. After erecting the package, the bag is inflated into close internal contact with the box by introducing a gas under pressure through a fitment attached to the bag and projecting outwardly of the box. The opposite ends of the box are closed with sets of foldable end flaps, with the aid of an adhesive. Preferably, the bag is further secured to the inside surfaces of a pair of opposed ones of the four bottom end flaps of the box. The opposed pair of bottom flaps are held folded out during the introduction of the pressurized gas into the bag, in order that the bottom end portion of the inflated bag may make neat contact with the inside surfaces of the box. There is also disclosed herein an apparatus for thus fabricating the BIB package.

Abstract: Disclosed is a container for storing product, a process and apparatus for making that container, a process and apparatus for drawing and blow forming plastic into a paperboard outer container and a process and apparatus for heat sealing a container. The container comprises a paperboard outer container and a plastic inner container which has been drawn and blow formed into the outer container. At the mouth of the container are horizontal plastic flanges which extend about the periphery of the container at least about 1/8 inch outwardly from the plastic inner container. Vertical flanges extend downwardly at least about 1/8 inch from the horizontal flanges. After product is placed in the container, the container is sealed by a heat sealable cover. A plastic overcap may be provided which engagedly fits around the container at its top.

Abstract: For the fabrication of a bag-in-box (BIB) package, there is first provided a semifinished, collapsed BIB package wherein a flattened bag is placed within a collapsed box and secured to at least one of its inside surfaces by means of an adhesive. After erecting the package, the bag is inflated into close internal contact with the box by introducing a gas under pressure through a fitment attached to the bag and projecting outwardly of the box. The opposite ends of the box are closed with sets of foldable end flaps, with the aid of an adhesive. Preferably, the bag is further secured to the inside surfaces of a pair of opposed ones of the four bottom end flaps of the box. The opposed pair of bottom flaps are held folded out during the introduction of the pressurized gas into the bag, in order that the bottom end portion of the inflated bag may make neat contact with the inside surfaces of the box. There is also disclosed herein an apparatus for erecting, filling, and sealing thus fabricating the BIB package.

Abstract: The present invention relates to an apparatus for making a container comprising an outer container of cardboard or similar stiff material and a lining of plastic or other easily formable and preferably gas-sealing material which lining is provided in the said outer container and which at the side of the container to be opened exposes an even single layer of lining material, and which is filled from and closed at the opposite end thereof.The container can be used for packing of any types of goods, but it is in particular suited for packing of compressed and/or evacuated goods of the type which is to be packed hermetically sealed. It is however to be understood that the container can as well be used for packing of any other solid or liquid product.

Abstract: Boxes which are open at the top and partly open at the bottom are transported by a chain conveyor past assembling, filling and sealing stations. At the assembling station, each box receives a bag which is open at the top and closed at the bottom, and each box further receives a platform which is inserted through its partially open bottom and extends to such a level as to maintain the open top of the respective bag above the open top of the box. Successive containers consisting of boxes and empty bags are then advanced to the filling station where the bags receive metered quantities of pulverulent, granular or other material, and the thus filled containers are advanced to the sealing station where the tops of the filled bags are readily sealable because they project upwardly beyond the open tops of the corresponding boxes.

Abstract: In plastic pouch forming, improved vacuum boxes that are movable toward and away from one another are provided. Each vacuum box comprises a series of superimposed, paired, mutually spaced vacuum ports in fluid communication with one another, the outer pair of ports being resilient and adapted to frictionally engage a wall portion of a flattened pouch and to flex open upon application of a vacuum to draw portions of the pouch wall into a cavity defined by an underlying port.

Abstract: A method for making a container having an outer container tube of cardboard or the like and a lining of plastic or the like within the outer container tube, one end of the container exposing an openable lining side and the opposite end intended to be filled and closed. A tubular outer container blank having bottom close flaps is provided and a separate lining blank in introduced into the outer container blank so that the upper side thereof is positioned at or adjacent the upper edge of the outer container blank. The lining blank is pressed from the openable side back some distance into itself to provide a lining rib which extends around the openable side. The lining blank is secured in the outer container blank by folding the top flaps of the outer container blank in and securing them to the lining rib.

Abstract: Individual flanged trays are deposited on a conveyor belt. A continuous film is applied across the top surface of the trays. A heated flat plate is pressed into the film and causes the tray flanges to bend to a desired position. The plate heats the film throughout and bonds the film to the tray flanges. Directly thereafter and while at the same station, vacuum is applied which serves to deform the film into the interior of the trays. The formed film preferably has rounded corners and may be partially separated from the bottom wall and side walls of the tray by an air space. Thereafter, a heated plug preferably having insulated sides, heat seals the now deformed film to the bottom wall of the tray. A cutting device trims the excess film at the tray flanges. The excess film may be scavenged and recycled. The cutting device may be provided at the deforming station or the sealing station or at a trimming station downstream of either of these stations.

Abstract: In plastic pouch forming structure, a pair of vacuum ports such as, for example, cups are provided in each of a pair of opposed vacuum boxes that are horizontally movable toward and away from one another. Each vacuum cup comprises an insert having a first half-face portion that is substantially flush with the vacuum cup's sealing surface, and a second half face portion that is recessed as respects the first face portion. The dividing line between the face portions is essentially a vertically extending edge of the first face portion offset laterally as respects the diameter of the cup.

Abstract: An apparatus for inserting a flexible bag into a box having an open upper end. The apparatus includes a frame which supports the box with the upwardly directed open end. A vertically movable member is mounted on the frame above the box for receiving a flexible container thereon. The receiving member has a leading end and a trailing end. The flexible container, when it is received on the receiving member, includes a closed end which is coextensive with the leading end and an open end which is coextensive with the trailing end. The trailing end of the receiving member includes an operative mechanism for folding the open end of the flexible container down around the outer periphery of the open end of the outer container to preferably provide a substantially U-shaped or cuff-like fold.

Abstract: A machine for placing an insert having a main panel and a bottom panel into an article carrier cell comprises a frame and a reciprocably operable insertion blade mounted thereon. The cell of the article carrier is positioned directly below the insertion blade so that the blade is operable to fold and lower the insert into the cell.

Abstract: A method is disclosed which makes a bag-in-carton by successively and intermittently advancing cartons, the upper ends of which are opened, and during the advancement successively supplying each of the cartons with a flattened bag, and subsequently blowing up the bag. A bag supplying apparatus and a bag blowing up apparatus used for performing the method are also disclosed. The bag supplying apparatus comprises means for supplying tubular material, roller means for intermittently advancing the material, means for providing the material with side folds while the material is being advanced, means for heat sealing the side folded material thereacross at the places spaced by the distance equal to the desired length of the bag to form bottom seams, and means for cutting the material just below the bottom seams to provide bags.

Abstract: Apparatus is disclosed for forming and placing a flexible liner into a shipping container with the open end of the liner draped over the sides of the container and the closed end of the liner spread into the bottom corners of the container. The device includes structure supporting a pair of cross heads moving relative to each other, each having a pair of side by side container liner engaging devices for opening and holding the liner in position for insertion into the container. One of the liner engaging devices has a dimension to enter the liner and extend to the closed end thereof, and the other is spaced from the first liner engaging device to enter the liner and extend partway to the closed end thereof, the liner engaging devices being spaced from each other to accommodate therebetween the walls of the shipping container. As the liner engaging devices are moved with respect to the container, the open end of the liner is draped about the container.

Abstract: A bag-type liner is applied interiorly of a container, such as a corrugated carton or box, by inserting an open end of the liner over an open end of the container and thereafter creating a vacuum within the container and liner to simultaneously draw the liner within the container. In a first apparatus embodiment of this invention, the vacuum is created by moving a partially opened bottom of the container over a vacuum opening formed in the platen. In a second apparatus embodiment of this invention, a pair of vacuum plenums are movably mounted adjacent to sides and upper portions of the container to draw the vacuum over and between upper closure flaps connected to the container.

Abstract: Apparatus for automatically inserting plastic liners in open-mouth multiwall paper bags having means for holding a stack of the bags to be lined, and means for opening the uppermost bag of the stack for insertion of a liner therein. Insertion is via an inserter having vacuum means for gripping a liner, the inserter moving forward into the opened bag at the top of the stack for inserting a liner grasped by the inserter into the bag. The inserter moves the lined bag forward to an outfeed position where an outfeed means engages the lined bag to feed it forward for being stacked and, with the grip on the liner released, the inserter is retracted for the next cycle of operation. Liners are supplied from a roll in which they are interconnected end-to-end in series at transverse lines of weakness, the leading liner of the series being torn off and fed into position for being gripped by the vacuum means of the inserter.