Illinois Tool Works Inc.

Jeffrey Griffin

John H Schneider

Stanley Piotrowski

David J Matthews

Nigel Dean Knight

Patricia I Norek

Basil Carl Linton

Gregory H Crunkleton

Reclosable bags having a slider-actuated string zipper and tamper-evident features. In one aspect, the bag comprises: a receptacle having a mouth and an interior volume; a string zipper installed in the mouth; a slider mounted to the string zipper; a membrane depending within the interior volume to block access to a portion of the interior volume when the string zipper is open; and a hood joined to the receptacle and shrouding the mouth. The membrane is made by forming a gusset. Then a string zipper is installed inside of the gusset and heat sealed in place. Later a hood or shroud is attached to the bag walls at an elevation traversed by the gusset panels. A layer of non-sealable material is applied on a surface of a gusset panel to prevent the gusset panels from being sealed together when the hood is heat sealed to the bag walls.

Tamper-evident slider-actuated string-zippered bag and related method of manufacture

A reclosable plastic bag () having a fin seal () which provides a weakness area () that extends into at least one side of the fin seal (). Perforation axes () for opening the reclosable plastic bag () may be aligned with the weakness area (). A method of making the bag is also disclosed.

Easy open feature for reclosable bags having a longitudinal fin seal

A method of making a reclosable plastic bag () having a fin seal () which provides a weakness area () that extends into at least one side of the fin seal (). Perforation axes () for opening the reclosable plastic bag () may be aligned with the weakness area (). A reclosable bag () made in accordance with the method is also disclosed.

Growing community of inventors

Atlanta, GA, United States of America

Jeffrey Griffin