Illinois Tool Works Inc.

Rusty Koenigkramer

David J Anzini

Steven Ausnit

Eric Paul Plourde

Clifton Ronald Howell

Glyn Russell

Kenny E McCracken

Charles Greco

David J Matthews

Lars G Wihlborg

Robert E Hogan

David Mark Wallace

Lawrence Share

David C Wallace

Murray Edward Bruce Leighton

Jose Manuel Septien Rojas

Kevin Owen

Clifton R Howell

John H Pilarski

Victor Matias

Michael J Lasofsky

Ernesto L Pitargue

Carroll F Baranowske, Iii

Hugh K Schedler

Carolyn Cannan, Legal Representative

Robert J Coulton

Arthur A Bucci

Steven Olechowski

Francis Olajide

Kenny Mccracker

Charles G Greco

Robert Hogan

Arthur Bucci

Kenny Mccracken

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.

Carton with plastic reclosable header

The zipper for a reclosable package wherein the zipper includes fragrance-carrying oil within an internal zipper volume or storage volume thereby confining the scent while the zipper and the package are closed. When the zipper is opened, the scent is allowed to escape to the consumer.

Reclosable package or bag with scented zipper

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.

Zipper profile manufactured by cut and stretch methods

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.

High burst zipper assembly for large reclosable packages

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 flange of zippers in reclosable packages or bags.

Tear strip creation on zipper flanges

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.

High burst package having a reclosable pour spout

The disclosure relates to relates to the use of trim sensors, registration sensors or pressure sensors to sense the position of a zipper during the manufacture of reclosable packages, particularly manufacturing processes wherein the ends of the zipper need to line up at the fin seal to insure success of the closure. The output of the sensors is used to adjust belt or roller speeds, or similar operational parameters to bring the zipper profiles into alignment at the fin seal.

Fin seal registration in manufacture of reclosable packages

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.

High burst leak-resistant slider zipper system

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.

Zipper with sachet

Hot melt adhesive systems for zipper assemblies on large bag constructions of various substrates

Method for manufacturing high burst zipper assemblies

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.

Method of producing high burst zipper assemblies for large reclosable packages

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.

Dual hot melt adhesive systems

Growing community of inventors

Nanuet, NY, United States of America

Rusty Koenigkramer