Abstract: The present invention relates to a sack made of thermoplastic film, said sack having front and rear panels and an open mouth top portion, gusseted side walls wherein the innermost reach of the gusset folds overlap and at the bottom of said sack a heat seal stripe welds together all of the lay-flat layers, including the overlapped regions.

Abstract: A flexible bag operable as a coin bank includes first and second sidewall members and a base portion. The sidewall members and base portion may be constructed from a flexible plastic material, such as a polyethylene plastic, which is capable of being heat-sealed. The flexible bag includes the plurality of edges, all of which are sealed to define an internal coin receiving chamber. Access to the chamber is provided by means of a coin slot, enabling coins to readily be placed into the bag, one at a time. Preferably the coin slot is sized to generally inhibit removal of large numbers of coins from the bag, without substantial difficulty. The flexible bag includes retaining means serving to keep the coin slot held substantially open for facilitating deposit of coins therein, at preferred times. The flexible bag bank may be constructed from materials sufficiently inexpensive and easy to cut open to facilitate complete destruction of the bank, when access to the coins is desired.

Abstract: A flat bottom plastic bag of two sided panel construction with the bottom of the bag formed by a gussett extending between the sealed ends of the bag, at which point the bag side panels are joined together, with the bag bottom gusset having a central fold line that is, in the flattened relation of the bag, disposed between the lower portions of the bag side panels, and that in such relation forms a first pair of adjacent bag plies that includes one of said bag side panel lower portions, and a second pair of bag plies that includes the lower portion of the other bag side panel, with said respective sets of bag plies being respectively joined together but free of adherence to each other by diagonally extending heat seals on either side of the bag that extend diagonally from the bag respective ends in converging relation to adjacent the respective bottom edgers of the bag that are defined by the respective bag plies.

Abstract: A flexible container for transporting and storing bulk goods, preferably arranged so as to be liftable by its upper end, is constructed from a tubular blank so as to include a shell, a bottom and a filling aperture, the pleats being formed in the shell having lower parts which are folded so as to be coplanar with the container bottom. In order to both strengthen the relatively weak region of the container bottom and to enable the manufacture of the container in an automated fashion, the tubular container blank is closed by a bottom seam located substantially in the central region of the container bottom and the upper plane of each pleat is folded into the plane of the container bottom and affixed to the lower plane of the respective pleat by a connecting seam.

Abstract: A line throwing bag comprising a bag with a sidewall, an open end, a closed end formed by an end wall, and an interior compartment with sufficient size to loosely receive a plurality of folds of a central portion of a line. The line has a first end portion fixedly attached to the bag and extending through an aperture in the bag end wall with a loop positioned exterior of the bag for grasping by the person to be rescued. A looped second end portion extends through the bag open end and is positioned exterior of the bag for grasping by the person throwing the bag. A weight is fixedly attached to the bag end wall and weighs a sufficient amount to carry the bag forward when thrown for a distance substantially equal of the length of the line central portion and to gradually play the line out of the bag under the rearward drag created by holding the second line end portion stationary.

Abstract: A bag assembly that is particularly adapted for fishing tackle stowage consisting of an outer bag and a bag unit connected thereto by tether to allow insertion and removal of the bag unit. The bag unit consists of a plurality of heavy gauge, two-sided, polyfilm bags having reclosable tops and the bottoms are each removably retained on a quick-release holder strap.

Abstract: Bottom-fold bags, made of endless tubular material, which can be made of endless flat material and having a substantially rectangular standing-surface, together with a method and apparatus for producing and filling such bags are disclosed. Two lateral, substantially triangular bottom-flaps, in the vicinity of which the tubular material is in three layers, are produced. The tubular material is folded-in from the sides of the bag being formed and a bottom longitudinal seam is formed by pressing the tubular material together and connecting together the layers of tubular material thus caused to bear upon one another. At least the two layers of the bottom-flaps facing away from the bottom-surface of the bag are united longitudinally. At least one connecting seam, arranged near the lateral edge of the bag, and at least one connecting seam, arranged near the apex of each triangular bottom-flap are provided, substantially at right angles to the bottom longitudinal seam.

Abstract: Square ended valve bags are formed from a tube-like band and in a chain with the back wall and top end of each bag partially sealed together to provide bags between the seals. Patches are placed on the top end of the bag and the patches and top ends are provided with displaced openings to provide a valve. Each bag in turn may be filled through the valve located in the top end, the bag expanding forwardly from the back wall by expanding gussets in the top and bottom ends.

Abstract: An invalid walker and carrier therefor, wherein the carrier is constructed so as to be readily collapsible and portable, and to provide for greater utility and purpose; and which is constructed so that it can be detachably connected to any of the more popular walkers. The carrier includes a bottom panel having a connected circumscribing side wall, both of which are formed from flexible sheet fabric type materials, wherein the bottom panel is formed with a co-extensive pocket for detachably receiving a rigid member for stabilizing the carrier. The carrier is also provided with straps to form hanging loops for suspending the carrier from the upper frame portion of the walker. The hanging loops or straps are arranged so that the carrier can be readily attached to any of the popular walker constructions so that the carrier is disposed within the area defined by the leg members of the walker.

Abstract: A large-sized transportation container for the transport of material in bulk comprises a side wall structure that is formed with four equally sized, substantially rectangular wall portions each of which is a separate cut-up of a woven fabric. The wall portions are interconnected at mutually overlapping edge portions by means of four corner seams which are each stitched with a zigzag-stitch. With this side wall structure a bulk container is obtained which has a factor of safety in respect to the forces acting on the wall which is six times higher than the safety factor of the known containers.

Abstract: A disposable, portion controlled container for condiments and other comestibles formed from heat sealable material is disclosed, featuring an easy opening of the container by virtue of a unique fold and heat seal made at one corner of the container during manufacture. An inside reverse fold is made in one corner of the container and a heat seal made along a four thickness layer of this inside reverse fold defines a tear line, stronger than the adjacent material. A tab extended from this four thickness heat seal of the inside reverse fold provides the means for opening the container along the tear line. The size of the opening in the container is controlled by the initial width of material used to form the inside reverse fold.

Abstract: A fabric bag for carrying bulk materials is formed by attaching side panels into a U-shaped member such that the bag is generally in the shape of a rectangular solid in the open position. Lifting loops are secured to each corner of the bag. A discharge outlet is present in the base of the bag for simplifying the emptying process for the bag. The lifting loops are present and sufficiently strong to support the bag when the bag is lifted by a forklift or similar apparatus.

Abstract: Disclosed is a package for cheese, luncheon meat and the like having an easy open seal. The package comprises a pouch-like receptacle constructed from flexible thermoplastic film having at least two layers wherein the outer surface layer has a tensile strength greater than the bond strength between the outer layer and its adjacent layer. To form the easy open seal the edges of the mouth of the receptacle are folded inwardly, flattened, and a heat seal applied to compress and seal together the resulting four layers of film with the seal being located between the edges and the fold lines. The resulting two folds provide grippable halves which can be pulled apart thereby rupturing one of the outer layers and delaminating the film from the point of rupture to the edge of the film, the delamination occurring between the outer layer and the adjacent layer.

Abstract: A sack comprises an inner container and a double-ply outer container which latter comprises a tubular or essentially tubular section of which the opposed severed edges are interconnected by a seam. Alternatively, the outer container comprises two such sections having their severed edges interconnected by respective seams.

Abstract: A flexible container for transporting and storing bulk goods, preferably arranged so as to be liftable by its upper end, is constructed from a tubular blank so as to include a shell, a bottom and a filling aperture, pleats being formed in the shell and having lower parts which are folded so as to be coplanar with the container bottom. The free, lower margin of the tubular container blank is closed by a bottom seam located substantially in the central region of the container bottom and the upper plane of each pleat is folded into the plane of the container bottom and affixed to the lower plane of the respective pleat by a connecting seam. On each side of the bottom seam, there is at least one supporting seam substantially parallel to the bottom seam. The distance of each supporting seam is advantageously in the range of about 1/3 to 1/4 of the half-length of the connecting seam.

Abstract: A package wherein a compressed array of resilient articles and a convertible support panel are disposed in a constraining enclosure such as, for example, a bag made of thermoplastic film. The convertible support panel preferably functions as the bottom wall of the package to enhance stackability of such packages; and is convertible into a tray for displaying the array of expanded articles upon removal of the constraining enclosure. The method of unpackaging includes the steps of removing the convertible support panel from the package while maintaining the array of articles constrained by the constraining enclosure; erecting the convertible support panel to convert it into a display tray; placing the constrained array in the tray; and removing the constraining enclosure.

Abstract: A flexible container for filling, transport and storage of bulk material is made from at least one piece of base material. The bottom of the container is formed from at least four paired, preferably equally large, flaps which are direct extensions of the container side walls. The bottom flaps are formed by cut lines in the piece of material, and the angles .alpha. and .beta. of alternate flaps converge toward the center of the bottom. The sum of top angles .alpha. and .beta. of the flaps is less than 360.degree., such that the container bottom formed by joints of the flaps is downward slightly cone or funnel shaped when the container is filled. The sum of the angles .alpha. and .beta. of the flaps preferably is between (240.degree.-280.degree.) and 360.degree.. The container bottom will be substantially square or rectangular, depending on whether .alpha.=.beta. or .alpha..noteq..beta..

Abstract: A dispensing bag for particulate matter is closed at one end by a two layer closure formed by an openable outer closure, and an inner dispersion panel with apertures of suitable size therethrough. Opening the outer closure exposes the apertures in the dispersion panel and permits particulate matter to be dispensed therethrough. The bags may be conveniently mass produced from sheet material, such as flexible plastic, in the form of a continuous strip or flattened tube, by appropriate cutting, folding, and joining operations. The invention provides an inexpensive container from which particulate matter may be conveniently dispensed in controlled fashion, and which resists accidental opening and spillage.

Abstract: A pack or bundle comprising a bag of thermoplastic film such as polyethylene, individual packages of rolls of paper, such as packages of four rolls of toilet tissue, packed in the bag, a closure panel inserted in the bag engaging the contents, the panel being heat-sealable on its outside face, the bag having a marginal lip at its mouth projecting beyond the closure panel folded over on the outside face of the closure panel and heat-sealed thereto to close the bag, and the method of making such bundles involving inserting the contents and the closure into the bag through its mouth, and folding over the lip and heat-sealing it to the panel.

Abstract: A bag structure of a thermoplastic film material comprising front and rear bag walls connected by side walls and having an open mouth top portion, said open mouth portion being characterized by having handles located at opposite end regions thereof, said handles being of two films as a result of being integral extensions of said front, rear and gusseted side walls; said bag having a bottom wall planarly extensible so as to form a rectangle with at least no substantial excess film outside of the bulk volumetric capacity of said bottom region of said bag.

Abstract: Multi-layered enclosures are provided which include extruded tubing laminated between two extruded sheets of coextruded film in order to rapidly produce an unusually tough enclosure having longitudinal side walls that are free of internal seams while providing superior fluid barrier properties. When desired, the multi-layered enclosure is transformed into a multi-layered bag or pouch by sealing the multi-layered enclosure together along one or more locations interconnecting the longitudinal or side edges of the multi-layered enclosure to thereby cross seal together the sheets, the tubing, and the internal surfaces of the tubing.

Abstract: A cell washing method and apparatus which utilizes centrifugation to separate blood components in a flexible bag. The less dense separated components e.g., supernatant, is expressed from the bag by centrifugal force acting on a plate adjacent the bag and the more dense component e.g., RBC's, remains. The bag is oriented at a double angle in the centrifuge so that less dense component accumulates at one location and more dense at a second location diagonally opposite the first location, thus facilitating removal of the less dense and washing of the more dense component.

Abstract: In the construction of a collapsible receptacle there is provided a length of fabric material and a length of webbing material formed from the same material as the length of fabric material. A plurality of lift loops formed from length of webbing material are positioned at spaced points along the length of fabric material with the lower ends of the lift loops located more than a predetermined distance above the lower edge of the material. After the lift loops are secured to the length of fabric material, the assembly is secured around the upper end of a collapsible receptacle body panel with the lift loops projecting above the upper edge of the panel. A line of stitching is used to at least partially secure the assembly to the body panel, with the line of stitching positioned at least the predetermined distance below the lowermost end of the lift loops.

Abstract: Multi-layered enclosures are provided which include extruded tubing laminated between two extruded sheets of coextruded film in order to rapidly produce an unusually tough enclosure having longitudinal side walls that are free of internal seams while providing superior fluid barrier properties. When desired, the multi-layered enclosure is transformed into a multi-layered bag or pouch by sealing the multi-layered enclosure together along one or more locations interconnecting the longitudinal or side edges of the multi-layered enclosure to thereby cross seal together the sheets, the tubing, and the internal surfaces of the tubing.

Abstract: A portable wine bottle carrier is characterized by a tote bag having a non-rigid bottom and sides and an open top, and a cushion divider for dividing the interior of the bag into two vertical compartments suitable for receipt of a wine bottle in each whereby bottles carried in the bag in the compartments are maintained in spaced, cushioned relationship. In one form of carrier, the cushion divider consists of a flexible padded tongue secured at its lower end to the bottom of the bag, which divides the bag into the vertical compartments or alternatively the divider may be adjusted or positioned to the side to accommodate a single wine bottle of standard or larger size. Also with the use of a larger size wine bottle, the tongue may be folded upon itself and on the bottom of the bag to provide a padded base support for the bottle. In another form of carrier, the cushion divider consists of an inverted T-shape cardboard insert.