Abstract:
A pouch-style containment package for containing and dispensing products is provided, comprising a front film and a back film sealed to the front film along a series of edge seals. In accordance with an embodiment of the invention, the pouch-style containment package comprises a widened seal portion extending inwardly from a first edge seal of the series of edge seals and an elongated diagonal cut extending substantially across the first edge seal and into the widened seal portion. The widened seal portion and elongated diagonal cut facilitate simple, directionally controlled tearing. In an embodiment of the invention, the pouch-style containment package has a preformed bulge, a widened seal portion extends inwardly from two edge seals adjacent the corner where the two edge seals meet, and two elongated diagonal cuts extend into the widened seal portion, facilitating tearing off a generally triangular corner portion.
Abstract:
A form-fill-seal machine for making a pouch style package is provided, comprising an optional bulge forming station for forming a puff or bulge; a heating and filling station for create seals and filling the pouch; and an optional flap making station comprising means for folding over a flap and sealing the inside portion of the flap to the front face of the pouch.
Abstract:
A compact form-fill-seal machine capable of the high speed production, collation and loading into cartons of a variety of small dispensing packages with instant opening features including fault lines in the lower containment formation. It can make a variety of formations in the upper cover member as well as fault lines. It also produces simple cups and tubs. The machine operates at extremely high efficiency with practically every known thermoformable plastic film.
Abstract:
An aperture forming structure for a sealed containment and dispensing package for flowable products is provided. The structure includes a breakaway tip member of thermoformable plastic. In one embodiment a cap may be integrally formed with the aperture forming structure and may be used to protect the tip member or for reclosing the aperture. An alternative embodiment relates to a pouch, wherein a flap member portion of the pouch is folded over and sealingly attached to the body of the pouch. When the flap member portion is pulled away from the body, an outlet aperture is produced through the surface of the pouch.
Abstract:
A container thermoformed from a relatively thin flat plastic film comprising an upright standing hollow containment formation having an upper flat rim to which a thin cover member is sealingly attached in a sealing pattern. The sealing rim encompassing the containment formation with at least a portion of the sealing rim extending outwardly from the hollow containment formation an amount adequate to permit it to function as a tab. The extending tab portion has a fault line on its underside traversing the tab at a right angle to a centerline extending outwardly from the hollow containment formation which when the tab portion is upwardly bent causes the tab to rupture at the fault line. The rupturing causes the outer tab portion to break away from the remaining tab portion while remaining sealed to the thin cover member which is also upwardly bent to create an outlet passage for flowable material between the remaining tab portion and the thin cover.
Abstract:
A pouch-style package formed of thin film comprising a front wall, a back wall, edge seals joining the front wall and back wall, and at least one bulge formation formed in a wall of the pouch-style package, having a stress-relieving indent formed in the wall in which said bulge formation is formed, the stress-relieving indent providing material to relieve excessive thinning or stress cracking at corners of the bulge formation.
Abstract:
A form-fill-seal machine for making a pouch style package is provided, comprising an optional bulge forming station for forming a puff or bulge; a heating and filling station for creating seals and filling the pouch; and an optional flap making station comprising a folding mechanism for folding over a flap and sealing the inside portion of the flap to the front face of the pouch.
Abstract:
A pouch style containment and dispensing package for flowable products is provided. The package comprises at least three layers of thin materials selected from a group of materials including heat sealable plastic films, metal foils, oxygen barrier films, plastic moisture barrier films, adhesives, coextrudable plastics and high strength plastics. The package includes an aperture or aperture forming means and a flap portion that is folded over and sealed to cover the aperture or aperture forming means, so that when the flap portion is folded back and away, an aperture is exposed or created. The layers may be selected so that a contact face of the flap member is sealed at a lower temperature than a sealing temperature for forming edge seals on the inner product contacting wall layers. Also, one layer may comprise a high strength layer that will not lose a significant amount of strength at temperatures substantially higher than the edge sealing temperature. Also, the invention provides a pouch style package having a pre-formed bulge in at least one wall to increase its product containment capability.
Abstract:
An aperture forming structure for a sealed containment and dispensing package for flowable products is provided. The structure includes a breakaway tip member of thermoformable plastic. In one embodiment a cap may be integrally formed with the aperture forming structure and may be used to protect the tip member or for reclosing the aperture. An alternative embodiment relates to a pouch, wherein a flap member portion of the pouch is folded over and sealingly attached to the body of the pouch. When the flap member portion is pulled away from the body, an outlet aperture is produced through the surface of the pouch.
Abstract:
A dispenser package comprising a relatively stiff flat sheet including a tough, high barrier layer secured to at least one surface thereof, a flexible sheet secured to one side of the relatively stiff sheet to form an enclosed flexible pouch or chamber adjacent the relatively stiff sheet, a cut pattern or fault line or other fault area scored or otherwise formed in the relatively stiff sheet generally along the transverse center line thereof, and at least one asymmetric protrusion displacing at least a portion of the fault line or fault pattern of the relatively stiff sheet, said protrusion preferably comprising an asymmetrical substantially semi- or split pyramidal shape. In preferred embodiments, a duplex or multiplex dispenser package is provided, including at least two adjacent but separate pouches or chambers secured to the relatively stiff sheet, and at least two substantially semi- or split pyramidally shaped, stress concentrating protrusions, at least one of said protrusions located above the along the inner edge of each separate pouch or chamber. Alternatively, the duplex or multiplex package is formed by interconnecting one or more individual dispenser packages.