Cover Weakened For Tearing Patents (Class 53/133.6)
  • Patent number: 8100875
    Abstract: A single-use ostomy appliance is described including an ostomy coupling for releasable coupling first and second portions at a stomal orifice. The two portions may be separable body-side and non-body-side parts, or the two portions may be portions of a unitary ostomy device such as a controlled evacuation device. The coupling includes a mechanical fastener configured such that the coupling is rendered substantially not resecurable after the fastener is released.
    Type: Grant
    Filed: October 11, 2006
    Date of Patent: January 24, 2012
    Assignee: ConvaTec Technologies Inc.
    Inventors: John Cline, John L. Blum, Gary Stacey, Phillip Davies, Trevor Beckett
  • Patent number: 8038349
    Abstract: The invention relates to a flexible package (1) formed by a wrapped material having a first longitudinal joint (4) comprising two longitudinal edge portions of the wrapped material. The package (1) also has a first and a second transverse joint (5, 6), each comprising a transversal edge portion of the wrapped material. The package (1) comprises a pocket defined by said wrapped material, an openable flap (11) defined by an indication (10) and a label (12) fixed to the openable flap (11) and provided with a tab (14) for opening the package (1) along the indication (10). The package (1) is characterised by a first and a second longitudinal stiffener (3) being formed by said wrapped material and that said label (12) is adhesively fixed to at least one of said first and second longitudinal stiffeners (3). The invention also relates to a method of producing such package.
    Type: Grant
    Filed: April 11, 2006
    Date of Patent: October 18, 2011
    Assignee: Regath HB
    Inventors: Thomas Andersson, Carl-Olof Norlin
  • Publication number: 20090049799
    Abstract: This vertical packager comprises a packing sheet (2) marking mechanism (3), along the path of said packing sheet (2) from the reel (21) towards the cutting, filling, and package sealing sections (11). Said mechanism (3) includes a laser beam generator that upon application to the packing sheet (2) creates a tear line (9) of varying adjustable shapes and depths and systems for focussing of the laser beam onto the packing sheet (2), a housing mounted on movable guide sections of the focussing system, a protective casing, ventilation apparatus for the removal of smoke created and a control system for movement of the housing and for the operation of the laser beam generator.
    Type: Application
    Filed: November 1, 2006
    Publication date: February 26, 2009
    Inventor: Jose Maria Pastrana Rojas
  • Patent number: 7416521
    Abstract: An apparatus and method for making a composite packaging material for easy-open packages includes means for pulling a running length of packaging film, the film having defined rupture characteristics. The packaging film is perforated with a sequence of spaced apart at least one perforation separated from another at a substantially constant fixed interval between adjacent ones of the sequence along the length of the film. A tape with a continuously extending dry edge is formed from a continuous supply of tape and tape pieces are formed and spaced apart along the length of the film. Successive discrete pieces of tape are adhered to the packaging film in overlying sealing relationship to successive ones of the sequence of at least one perforation.
    Type: Grant
    Filed: November 9, 2006
    Date of Patent: August 26, 2008
    Inventors: Harold M. Forman, Trevor G. Smith, Alfred E. Kettell
  • Patent number: 7037250
    Abstract: A method of forming a perforated tear line in a bag to form an easy-open corner portion. The perforation blade includes a base formed to span the corner portion of the bag. The base has a first end adapted to extend to the end edge of the bag proximate a seal line, and a second end adapted to extend to one side edge of the bag. A series of closely spaced perforation teeth are formed with the base, and are adapted to penetrate the first and second walls of the bag to form a corresponding series of perforations at the corner portion of the bag. A starter tooth is formed at the first end of the base, and is adapted to cut a starter nick in a skirt of the bag between the end edge and the proximate seal line. A burst protection gap is formed between the starter tooth and a first of the series of perforation teeth. The burst protection gap is adapted for safely receiving the seal line of the bag to prevent severing the seal line when cutting the perforations.
    Type: Grant
    Filed: August 26, 2003
    Date of Patent: May 2, 2006
    Assignee: Exopack-Thomasville LLC
    Inventor: Timothy L. Albright
  • Patent number: 6912825
    Abstract: A flexible stand-up liquid pouch is formed from a sheet of foil film laminate material whereby opposed side walls of the material are folded together with sealed circumferential edges to form an enclosed chamber. A liquid is provided in the chamber, and the side walls of the sheet material which form the container have raised portions which, when sealed together, cooperatively form an internal straw restraining passage inside the container. The straw restraining passage communicates with the liquid chamber and a straw is held loosely captive inside the straw restraining passage and is axially displaceable therein. The straw restraining passage defines a reduced cross-sectional area of the chamber, and the pouch is manufactured with a weakened portion on an upper portion of the pouch, whereby the weakened portion can be torn by a user, thus enabling the internal straw to emerge, due to the buoyancy of the straw, from the interior of the pouch.
    Type: Grant
    Filed: August 29, 2002
    Date of Patent: July 5, 2005
    Inventor: Rahul A. Kothari
  • Patent number: 6889483
    Abstract: An easy-opening feature in a flexible package is provided by forming a tear feature in the package material by slitting, perforating, or otherwise forming a stress riser in the material, and affixing a label to the package material so that the label adheres to the tear feature. The formation of the tear feature and affixing of the label are performed prior to wrapping a product in the package material and sealing the material, and preferably are performed while the package material is moving along a path in a packaging apparatus. The label in one embodiment includes a detachable middle portion that tears free of the rest of the label upon pulling the detachable portion, such that remaining portions of the label remain on the package adjacent the opening created by the tear feature.
    Type: Grant
    Filed: October 31, 2002
    Date of Patent: May 10, 2005
    Assignee: Cryovac, Inc.
    Inventors: Stephen F. Compton, Roger J. Morrissette, Mitchell W. Smith, Sr., Frank B. Edwards
  • Publication number: 20040083680
    Abstract: An easy-opening feature in a flexible package is provided by forming a tear feature in the package material by slitting, perforating, or otherwise forming a stress riser in the material, and affixing a label to the package material so that the label adheres to the tear feature. The formation of the tear feature and affixing of the label are performed prior to wrapping a product in the package material and sealing the material, and preferably are performed while the package material is moving along a path in a packaging apparatus. The label in one embodiment includes a detachable middle portion that tears free of the rest of the label upon pulling the detachable portion, such that remaining portions of the label remain on the package adjacent the opening created by the tear feature.
    Type: Application
    Filed: October 31, 2002
    Publication date: May 6, 2004
    Applicant: Sealed Air Corporation
    Inventors: Stephen F. Compton, Roger J. Morrissette, Mitchell W. Smith, Frank B. Edwards
  • Patent number: 6609998
    Abstract: A method and a machine for making a plastic film bag with opposed closable end openings as well as a double compartment bag is described. The bags may be formed from J-folded, U-folded or tubular film sheets. In one embodiment, a bag is formed with a gusseted end adjacent which a zipper closure and a detachable end is provided and at the other end of the bag there is provided an opening which is closable by a closure tag. The method and machine are also adaptable to form double-ended closure bags having two distinct compartments, each accessible by a respective one of the end closure. The bags formed by the method and machine have various uses such as carrying two separate articles, each article being accessible from one of the opposed ends of the bags. The double compartment bags may also contain two different products, each accessible separately through a zipper closure. The bags may also be formed with a flap provided with wicket holes to support the bag in an automatic bag filling machine.
    Type: Grant
    Filed: August 27, 2002
    Date of Patent: August 26, 2003
    Assignee: Glopak Inc.
    Inventors: Robert Lauzon, Ritchie Baird, Guy J. Houle, Pierre Papineau, Richard Beauchesne
  • Patent number: 6539688
    Abstract: A hermetically sealed package for food items, such as loaves of processed cheese, employing plastic film with serrated ends and an accessible tear strip, which together provide points of focus for easy opening of the package without unwanted tearing or undesirable contamination of the food item. A process for forming this package also forms part of the invention.
    Type: Grant
    Filed: October 29, 2001
    Date of Patent: April 1, 2003
    Assignee: Schreiber Foods, Inc.
    Inventors: Kenneth Fahs, David Sullivan, Michael Nooyen
  • Patent number: 6440051
    Abstract: A method and a machine for making a plastic film bag with opposed closable end openings as well as a double compartment bag is described. The bags may be formed from J-folded, U-folded or tubular film sheets. In one embodiment, a bag is formed with a gusseted end adjacent which a zipper closure and a detachable end is provided and at the other end of the bag there is provided an opening which is closable by a closure tag. The method and machine are also adaptable to form double-ended closure bags having two distinct compartments, each accessible by a respective one of the end closure. The bags formed by the method and machine have various uses such as carrying two separate articles, each article being accessible from one of the opposed ends of the bags. The double compartment bags may also contain two different products, each accessible separately through a zipper closure. The bags may also be formed with a flap provided with wicket holes to support the bag in an automatic bag filling machine.
    Type: Grant
    Filed: November 27, 2000
    Date of Patent: August 27, 2002
    Assignee: Glopak, Inc.
    Inventors: Robert Lauzon, Ritchie Baird, Guy J. Houle, Pierre Papineau, Richard Beauchesne
  • Patent number: 6212860
    Abstract: Sipping straws are confined in discrete envelopes while advancing in a single file of spaced-apart straws through a wrapping station. The envelopes are obtained from a continuous strip of wrapping paper which is conveyed to the wrapping station in the direction of advancement of the file of spaced-apart straws and is draped around the straws in such a way that one of its longitudinally extending marginal portions overlies and adheres to the other marginal portion with simultaneous formation of a seam rather than an outwardly extending fin. The thus obtained tubular wrapper is thereupon severed in the gaps between successive spaced-apart straws, and the end portions of the thus obtained discrete envelopes are sealed by knurling, e.g., simultaneously with severing of the tubular wrapper.
    Type: Grant
    Filed: July 20, 1999
    Date of Patent: April 10, 2001
    Assignee: Hauni Richmond, Inc.
    Inventors: Peter M. Preisner, Hans-Joachim Oppe