Abstract: A process for the production of carry bags from synthetic resin film with lateral seams made by cutoff welding and with an approximately sinusoidal load-bearing rim with punched-in handle openings, involves a series of steps wherein a tubular film of double width and laid flat is cut open along its center in a wave shape with crests and troughs for the paired production of two sets of bags, and, along the cutting edges, turned-over rims are folded parallel to the folding edges, in each case either toward the outside or toward the inside, and the turned-over rims are welded (usually by heat bonding) at least partially to the lower end upper sheet layers of resulting semitubular lengths from the inside or outside, i.e. at least in a region surrounding the handle opening to be punched out subsequently.

Abstract: A handle for a bag includes an elongated, flexible sheet member having an attachment region at each end. The attachment regions are adapted for attachment to the bag. The sheet member includes an elongated, rectangular intermediate region between the attachment regions. A welting member is adjacent to the intermediate region. The welting member includes an elongated sheet of relatively highly compressible and resilient material. The intermediate region is folded along its long principal axis so that the long sides of that region are mutually jointed at a seam with the welting member positioned between the two halves of the intermediate region on either side of the principal axis. The handle further includes a plurality of seams joining opposite portions of the two halves along substantially parallel axes extending transverse to the principal axis. The transverse axes are equally spaced in the direction of the principal axis by a distance D.

Abstract: A large bulk bag with a complimentary liner therein, both of a flexible material, and constructed and arranged so that when empty they can be folded into a generally flat and compact configuration. At least two spaced apart connectors between the bag and liner prevent the liner from being drawn out of the bag by the discharge of its contents while permitting the liner to collapse upon itself without being substantially restrained from doing so by the bag.

Abstract: A large bulk container is provided with a lift strap formed from a strip of flexible material for lifting the bulk container. The bulk container has connecting side panels and either a closed or open top and preferably a generally rectangular shape when filled. The strip forms a loop above the panels and has two ends connected in overlapping relationshp to adjacent side panels. A diagonal line of connection is provided between the two sides of the strap forming the loop and above the side panels to orient the lifting forces generally into one plane and in a generally vertical direction. The lift strap thereby prevents separation from the connected side panels and the spilling of the container contents upon lifting by the strap.

Abstract: Four pairs of lifting panels extend upwardly from and have their lower end portions formed integrally with the upper edges of the side walls of the cargo bag. Each of the four pairs of lifting panels includes a pair of adjacent lifting panels positioned adjacent a corresponding corner of the cargo bag and the upper end portions of the lifting panels are folded inwardly to form multi-plies thereof. The multi-ply upper end portions of adjacent lifting panels are positioned in overlapping relationship and are interconnected to form a lifting loop above each corner of the cargo bag for supporting and moving the cargo bag from one location to another.

Abstract: The bag is preferably a flat bottom side gusseted open top bag of the shopping bag type, which has soft braided or woven fabric handles. The handles are closed bail type handles having ends which are sandwiched between the bag side walls and a patch adhesively secured to the inner surface of the bag side walls. The bail portion of each handle is soft, limp and flexible while the end portions of each handle sandwiched between the patch and bag wall are stiff and relatively rigid. The ends of the handles are stiffened prior to assembling the bags. In assembly, the bag body is formed and the patches are adhesively secured to the bag side walls. Non-adhered pockets are positioned between the patches and the bag walls for reception of the stiffened ends of the handles. The ends of the handles are coated with adhesive and then inserted into pockets for securing to the bag body.

Abstract: Flexible (single use) sack for transporting goods, such as bulk goods, having a weight of at least 3000 N. It comprises a fabric woven from polypropylene tapes and/or threads and exhibits a mean strip breaking strength of at least 550 N per 50 mm. Sacks with an improved safe working load which can be more readily handled, are obtained by using tapes or threads comprising a matrix of 75-85% B.W. of polypropylene and 25-15% B.W. of polyester, preferably polyethylene terephthalate. The polyester is preferably present in the form of fibrils.

Abstract: A flexible bulk container has a side wall structure 1 formed from a length of tubular woven fabric comprising a base fabric and a plurality of parallel reinforcing bands such as 2 to 5 integrally woven with the base fabric and extending parallel to the tube axis. A bottom 26 is stitched to the side wall structure at one end of the fabric length and a top wall structure 24 may be secured at the other end of the fabric length. The container has a plurality of lifting loops 20 to 23 at the top end of the fabric length, each lifting loop being formed by cutting back a portion of the base fabric alongside each of two adjacent reinforcing bands (e.g. 3 and 4) to leave parts of the bands projecting from the base fabric, and securing together the free ends of the projecting parts to form the loop (e.g. 20). One of the projecting parts may be twisted through 180.degree. before the free ends are joined together.

Abstract: A composite handle for containers to be hand-carried by a person, comprising a pair of handles each fastened to a side of the container, and each consisting of two straps of flexible strong material, the two straps of each handle being fastened together at an intermediate section which is the section to be gripped by the user. The intermediate section of one handle is removably secured to the corresponding intermediate section of the other handle in superposed relation, so as to obtain, at the mutually engaged intermediate portions of each handle, a single composite gripping section having sufficient thickness and rigidity to allow easy gripping by the user.

Abstract: A flexible container including an elongated strip-handle having elongated outer edge portions, the strip-handle extending across a major outer surface of the container, the strip-handle being secured adjacent the ends thereof to the container, the improvement comprises, securing means located intermediate the ends of the strip-handle and located inboard of the elongated outer edge portions, fastening the strip-handle to the container, thereby providing additional securing of the strip-handle to the container, but still permitting the outer edge portions to remain unattached to the container. Also disclosed, is a method of securing an elongated strip-handle to a flexible container.

Abstract: A carry-bag includes two wall sheets (34,36) joined or coherent to define a bag portion, and the respective top portions of the wall sheets are provided with gripping and carrying openings. In order to provide a strong, easy to use, and relatively tight closing to the interior of the bag portion, the top portion of a first wall sheet (34) has been folded inwardly and attached to define an insertion pocket (24), and a gripping opening is provided in the pocket. A top portion of the other wall sheet (36) is shaped as an insertion tongue (32) which is also provided with a gripping opening (6) and is adapted to be received in the interior of the pocket (24) so that the two gripping openings are at least partially coextensive.

Abstract: Four triangular lifting panels are formed integrally with and extend upwardly from the upper edges of the side walls of the cargo bag. Each of the triangular lifting panels includes wide lower ends, inwardly tapering sides, and substantially pointed upper ends with the wide lower ends of the triangular lifting panels being integrally joined with at least one-half of the upper edges of at least two of the side walls on opposed sides of the cargo bag. In one embodiment, pairs of triangular lifting panels are formed integrally with opposed side walls so that the lifting stress is equally distributed to opposed side walls. In another embodiment, the four triangular lifting panels are formed integrally with and centered above the juncture of adjacent side walls so that the lifting stress is equally distributed to all four side walls. Lifting loop means is associated with the lifting panels for supporting and moving the cargo bag from one location to another.

Abstract: An improved mattress carrier for containing and protectably enclosing a mattress and for facilitating handling of the mattress during transportation to a location of use. The carrier comprises a flexible, generally rectangular cover designed to receive and contain a mattress therein. The cover has an upper zippered opening, sets of reinforcing straps bands and spaced pairs of handles on opposite ends of the cover to be gripped by respective deliverymen to normally support the mattress in a generally vertical plane. The handles which may be formed by flexible looped ends of the reinforcing bands are spaced along the ends of the cover on opposite sides of a midline of the mattress carrier, such that the mattress and carrier may be easily manipulated and reoriented about the midline in confined spaces to facilitate handling of the same.

Abstract: A flexible bulk container assembled from a single length of material. The container comprises a base (5), first and second opposed side walls (6,7) each joined to the base and third and fourth opposed side walls each composed of two panel sections (8,9 and 10,11 respectively) joined along a vertical center seam, each third and fourth side wall being joined to the first and second side walls and to the base. Each side wall has two spaced parallel reinforcing bands (2,3) extending from the bottom to the top thereof, each band being extended above the top of the side wall into a connection section that connects with the closer reinforcing band of the adjacent side wall to form a lifting loop (12 to 14) over the respective corner of the container. Each connecting section is a continuous extension of the two reinforcing bands that it connects, so avoiding stitching of the lifting loops to the wall fabric.

Abstract: A shopping bag handle is either integral with opposing panels of a grocery bag or is formed in separate inserts attachable to grocery bag panels. The panels have central end regions which have parallel integral reinforced strips extending along the length of the panels and which may be formed by glued pleats in the panels. A U-shaped flap is cut between the reinforced lateral strips. The flap is wrapped and glued around a transverse web at the end of the panel and which is defined by the U-shaped flap. The transverse web is further reinforced by doubling the web thickness and folding its corners inwardly before wrapping the flap around the web. The reinforced web serves as the handle. The base of the handle opening formed by the flap may be formed of a panel which is folded downwardly to cover the cut edge of the transverse portion of the slit forming the flap.

Abstract: A bulk transport bag comprises a bag body made of a flexible fabric coated with a plastic material such as PVC, and lifting webs defining lifting loops, which lifting webs are made of a fabric web impregnated and/or coated with a plastic material such as PVC compatible with that coated on the body fabric, the lifting webs and bag body being bonded together by a weld through the compatible plastics materials effectively to form an integral structure. Anti-peel devices are preferably provided at the upper periphery of the side wall of the bag body, where the bonded regions of the lifting webs separate from the bag body to form the lifting loops.

Abstract: A pair of handles for a shopping bag, each handle having a base and a bail molded of one-piece plastic construction, are disclosed. The opposite ends of the bail are integrally connected to the base in a manner so as to impart an aesthetically pleasing, generally flat appearance to the bag in the regions overlying the bail ends. The bail has a twisted hand grip portion having a smooth lower surface free of sharp edges to facilitate carrying the bag.