Patent application number | Description | Published |
20080267542 | Zipper with fold over elements for reclosable package - A zipper assembly for a reclosable package or bag is disclosed. The zipper assembly includes two profiles with flanges and internal interlocking elements on the interior of the flanges. The exterior of one of the flanges includes two exterior parallel press-to-close profile-like interlocking elements which are brought into engagement with each other by folding the flanges of the zipper assembly. This increases the burst handling capability of the zipper assembly and the package or bag to which it is attached. Alternatives include substituting a peel seal for the exterior interlocking element as well as an exterior label or sticker to maintain the flanges in a folded configuration. | 10-30-2008 |
20080279484 | Leak-proofing gussets on multi-wall paper and woven polypropylene packages or bags - Reclosable gusseted packages or bags have improved resistance to leaking or spilling through the gussets by way of glue or adhesive applied in the gussets in the areas proximate to the reclosable zipper of the bag. This can be done by applying a glue smear to the interior and exterior of the gusset walls; applying glue dots between the exterior facing walls of the gussets; or by applying the glue smear between the exterior facing walls of the gussets. | 11-13-2008 |
20090052812 | Various gusset seals or treatments for reclosable packages - Reclosable gusseted packages or bags have improved resistance to leaking or spilling through the gussets by sealing the gussets together through apertures in the gusset walls, by sealing the zipper flanges together through apertures passing through the gussets in the package or bag, by folding portions of the gussets, or by sewing the gussets shut in areas proximate to the zipper. | 02-26-2009 |
20090056278 | Dual hot melt adhesive systems - The present disclosure relates to the use of first and second adhesives for the attachment of zipper flanges to reclosable packages. A first adhesive is typically a reactive, cross-linkable hot melt adhesive while the second adhesive is typically non-cross-linkable hot melt adhesive, typically, but not limited to, either EVA-based or polyamide-based. Alternatively, the second adhesive can be a coextrusion layer including a resin that is typically used as a sealant layer in zipper extrusion, such as metallocene type linear low density polyethylene. | 03-05-2009 |
20090067761 | High burst closure assembly for large packages - The present disclosure relates to a high burst closure which allows for bottom filling of packages, such as large bags, and further provides increased resistance to damage from the dropping or shock loading of the filled package. This is achieved by providing profiles that combine an upper portion of one profile and its related flange, so as to form a juncture above a peel seal joining one profile to the other, so that external forces on a package or bag from bottom filling or shock loading are directed toward the juncture thereby causing a shear force against the peel seal or other frangible connection, thereby increasing the resistance of the package to external forces. | 03-12-2009 |
20090097783 | High-burst, easy-opening slider zipper for reclosable packages or bags - The reclosable package or bag includes a zipper which allows for high burst strength while maintaining easy opening capability. The zipper includes first and second profiles which include respective first and second exterior flanges which are glued or heat sealed to corresponding first and second panels of the package or bag. The first profile further includes an interior flange. A peel seal is formed between the interior flange and the second exterior flange. In this configuration, a high load on the panels puts the peel seal into a shear mode, which results in greatly increased strength of the peel seal and therefore of both the zipper and the package or bag. After the high load subsides, the peel seal returns to the configuration in which it can be separated by a much lower peel force, such as is applied by a consumer during ordinary opening. | 04-16-2009 |
20090255216 | HOT MELT ADHESIVE SYSTEMS FOR ZIPPER ASSEMBLIES ON LARGE BAG CONSTRUCTIONS OF VARIOUS SUBSTRATES - The present disclosure relates to a high burst slider zipper which allows for bottom filling of reclosable packages, such as large bags, and further provides increased resistance to damage from the dropping or shock loading of the filled package. This is achieved by providing a peel seal or other frangible or separable connection between the zipper profiles, and by sealing a portion of one of the flanges to itself by a hard seal above the peel seal. This causes the external forces on a bag from bottom filling or shock loading to be directed toward the hard seal and further directed so as to cause a shear force against the peel seal, thereby increasing the resistance of the package to external forces. | 10-15-2009 |
20090257691 | HIGH BURST CLOSURE ASSEMBLY FOR LARGE PACKAGES - The present disclosure relates to a high burst closure which allows for bottom filling of packages, such as large bags, and further provides increased resistance to damage from the dropping or shock loading of the filled package. This is achieved by providing profiles that combine an upper portion of one profile and its related flange, so as to form a juncture above a peel seal joining one profile to the other, so that external forces on a package or bag from bottom filling or shock loading are directed toward the juncture thereby causing a shear force against the peel seal or other frangible connection, thereby increasing the resistance of the package to external forces. | 10-15-2009 |
20090258772 | METHOD OF PRODUCING HIGH BURST ZIPPER ASSEMBLIES FOR LARGE RECLOSABLE PACKAGES - The present disclosure relates to a method for producing a high burst slider zipper which allows for bottom filling of reclosable packages, such as large bags, and further provides increased resistance to damage from the dropping or shock loading of the filled package. This is achieved by providing a peel seal or other frangible or separable connection between the zipper profiles, and by sealing a portion of one of the flanges to itself by a hard seal above the peel seal. This causes the external forces on a bag from bottom filling or shock loading to be directed toward the hard seal and further directed so as to cause a shear force against the peel seal, thereby increasing the resistance of the package to external forces. | 10-15-2009 |
20090263051 | HIGH BURST ZIPPER ASSEMBLY FOR LARGE RECLOSABLE PACKAGES - The present disclosure relates to a high burst slider zipper which allows for bottom filling of reclosable packages, such as large bags, and further provides increased resistance to damage from the dropping or shock loading of the filled package. This is achieved by providing a peel seal or other frangible or separable connection between the zipper profiles, and by sealing a portion of one of the flanges to itself by a hard seal above the peel seal. This causes the external forces on a bag from bottom filling or shock loading to be directed toward the hard seal and further directed so as to cause a shear force against the peel seal, thereby increasing the resistance of the package to external forces. | 10-22-2009 |
20100069211 | METHOD OF PRODUCING HIGH BURST ZIPPER ASSEMBLIES FOR LARGE RECLOSABLE PACKAGES - The present disclosure relates to a method for producing a high burst slider zipper which allows for bottom filling of reclosable packages, such as large bags, and further provides increased resistance to damage from the dropping or shock loading of the filled package. This is achieved by providing a peel seal or other frangible or separable connection between the zipper profiles, and by sealing a portion of one of the flanges to itself by a hard seal above the peel seal. This causes the external forces on a bag from bottom filling or shock loading to be directed toward the hard seal and further directed so as to cause a shear force against the peel seal, thereby increasing the resistance of the package to external forces. | 03-18-2010 |
20100202714 | HIGH BURST PACKAGE HAVING A RECLOSABLE POUR SPOUT - The disclosure relates to a gusseted reclosable package with an internal unisex reclosure strip. The reclosure strip has upper and lower flanges, and a two or three-point connection, rather than a four-point connection, to the interior circumference of the package. This results in the package having a higher internal (product side) opening strength than the external (consumer side) opening strength, thereby allowing the package to be easily opened by the consumer while maintaining a high burst strength. | 08-12-2010 |
20100209026 | EASY OPEN WOVEN POLYPROPYLENE BAG - The disclosure relates to a large package, typically with woven polypropylene walls, including an easy-open strip with a pre-activated peel seal. The easy-open strip achieves a high burst strength by configuring the pre-activated peel seal in shear mode in response to internal (product side) forces while achieving a low consumer opening force by configuring the peel seal in response to external (consumer side) forces. | 08-19-2010 |
20100278457 | ARCHING ZIPPER AND METHOD OF MANUFACTURE - Zippers are provided for reclosable packages or bags. By selectively co-extruding a first portion of the zipper with a shrinkable or expandable material, and simultaneously co-extruding a second portion of the zipper with a dimensionally stable thermoplastic or similar material, followed by a step of activating the shrinkage or expansion of the shrinkable material, several different shapes of zipper can be achieved. For instance, by co-extruding the shrinkable material to a lower portion of the zipper or co-extruding the expandable material to an upper portion of the zipper, an upwardly arching or convex shape can be achieved. Similarly, by co-extruding the shrinkable material to an upper portion of the zipper or co-extruding the expandable material to a lower portion of the zipper, a downwardly arching or concave shape can be achieved. Similarly, by co-extruding the shrinkable material to inner portions of the zipper or the expandable material to outer portions of the zipper, a self-opening characteristic may be added to the zipper. Additionally, zippers may be placed at inclined positions in a complementary head-to-head configuration in order to eliminate or reduce waste of packaging material during manufacture. | 11-04-2010 |
20110283487 | ZIPPER WITH SACHET - A reclosable zipper is disclosed which includes a first profile containing a first interlocking element and a first product side flange. A second profile is provided which contains a second product side flange and a second interlocking element for reclosably interlocking with the first interlocking element. A sachet is provided on a flange either on the product or consumer side or extending between the first and second flanges. | 11-24-2011 |
20110297680 | CARTON WITH PLASTIC RECLOSABLE HEADER - The disclosure relates to a method and apparatus for manufacturing a package with a rigid or semi-rigid container and a polymeric or plastic header with a reclosure, such as a zipper. The rigid or semi-rigid container is typically provided in a stack of flat containers. The header is sealed, glued or otherwise secured to the containers. The container, typically inverted, is filled, and the bottom is formed by folding and sealing the bottom portion of the container. | 12-08-2011 |
20110301006 | CARTON WITH PLASTIC RECLOSABLE HEADER - The disclosure relates to a method and apparatus for manufacturing a package with a rigid or semi-rigid container and a polymeric or plastic header with a reclosure, such as a zipper. The rigid or semi-rigid container is typically provided in a stack of flat containers. The header is sealed, glued or otherwise secured to the containers. The container, typically inverted, is filled, and the bottom is formed by folding and sealing the bottom portion of the container. | 12-08-2011 |
20120186048 | HIGH BURST LEAK-RESISTANT SLIDER ZIPPER SYSTEM - The disclosure pertains to a slider zipper which includes first and second zipper profiles, typically a hinged profile and an non-hinged profile, with first and second ears extending above the respective first and second zipper profiles. A slider rides above the zipper profiles and opens the zipper by separating the ears. Typically, the slider is configured to push the non-hinged zipper profile away from the hinged zipper profiles. Similarly, typically, the ear on the non-hinged zipper profile is stiffer than the ear on the hinged zipper profile. | 07-26-2012 |
20120187182 | CARTON WITH PLASTIC RECLOSABLE HEADER - The disclosure relates to a method and apparatus for manufacturing a package with a rigid or semi-rigid container and a polymeric or plastic header with a reclosure, such as a zipper. The rigid or semi-rigid container is typically provided in a stack of flat containers. The header is sealed, glued or otherwise secured to the containers. The container, typically inverted, is filled, and the bottom is formed by folding and sealing the bottom portion of the container. | 07-26-2012 |
20120189232 | TEAR STRIP CREATION ON ZIPPER FLANGES - The disclosure pertains to various embodiments of zippers with a tear flange for use in a reclosable flexible package or bag. A line of weakness can be introduced into the tear flange by application of a peel seal polymer resin or of a foaming agent. The disclosure includes further embodiments wherein lines of weakness are introduced into the flanges of zippers in reclosable packages or bags. | 07-26-2012 |
20120202667 | UNISEX ZIPPERED PACKAGES WITH WIDE MOUTH AND OTHER FEATURES - The disclosure pertains to method for manufacturing reclosable packages, bags or pouches wherein, typically, a unisex zipper is looped and sealed inside of the package. The formation of the looped zipper segment causes the package to have a wide open mouth, and a natural tendency toward the open configuration. Both transverse and machine direction methods are disclosed, as well as resulting packages which may include a spout. | 08-09-2012 |
20120301056 | ZIPPER PROFILE MANUFACTURED BY CUT AND STRETCH METHODS - The disclosure relates to a zipper for a reclosable bag wherein the zipper is designed to make additional sound during operation, and further provide an increased tactile response. The zipper profile is manufactured by forming cuts in the profile, and then the profile is stretched so that the cuts become gaps. These gaps cause additional sound during operation of the zipper. | 11-29-2012 |
20130174386 | MORE SUSTAINABLE BIODEGRADABLE FOAMED ZIPPER - The present disclosure relates to zipper for a reclosable package, particularly a zipper which has been foamed with the use of bioresins or biodegradable additives to increase the degradability of the zipper. The combination of the process of foaming with the use of bioresins or biodegradable additives typically increases the rate of degradability of the zipper, particularly in biodegradable environments, such as landfills. | 07-11-2013 |
20140263597 | CARTON WITH PLASTIC RECLOSABLE HEADER - The disclosure relates to a method and apparatus for manufacturing a package with a rigid or semi-rigid container and a polymeric or plastic header with a reclosure, such as a zipper. The rigid or semi-rigid container is typically provided in a stack of flat containers. The header is sealed, glued or otherwise secured to the containers. The container, typically inverted, is filled, and the bottom is formed by folding and sealing the bottom portion of the container. | 09-18-2014 |
20140263598 | CARTON WITH PLASTIC RECLOSABLE HEADER - The disclosure relates to a method and apparatus for manufacturing a package with a rigid or semi-rigid container and a polymeric or plastic header with a reclosure, such as a zipper. The rigid or semi-rigid container is typically provided in a stack of flat containers. The header is sealed, glued or otherwise secured to the containers. The container, typically inverted, is filled, and the bottom is formed by folding and sealing the bottom portion of the container. | 09-18-2014 |
20140294325 | RECLOSABLE PACKAGE OR BAG WITH SCENTED ZIPPER - The disclosure relates to a zipper for a reclosable package ( | 10-02-2014 |