Tamper evident reclosable package
AssigneeIllinois Tool Works Inc.
InventorsJohn H. Schneider, Donald L. Crevier, Patricia I. Norek
Life of this patent
Estimating the term…
Abstract
A tamper evident package has a first wall and a second wall facing the first wall. A zipper is provided at a top of the package. The first and second walls include portions that extend over the zipper and the first wall extension portion has a line of weakness that extends parallel to the zipper. A peel seal joins the first wall and the second wall above the interlocking members of the profiles and sections of the first and second walls extend beyond the peel seal. If the zipper has a slider, a pocket is formed in one of the walls to accommodate the slider. The slider pocket extends parallel to the zipper. Methods of forming the package on various types of form, fill and seal equipment as well as the equipment are also disclosed.
Claims10
A method of making reclosable packaging comprising:
- providing a first longitudinally extending sheet of film material and a second longitudinally extending sheet of film material, said first sheet of film material being formed of thermoform material and said second sheet being provided separately from said first sheet;
- forming a longitudinally extending line of weakness proximal to and spaced from a side edge of said first longitudinally extending sheet;
- positioning said first sheet to overlie said second sheet;
- and
- attaching a zipper between said sheets, said line of weakness being positioned between a line of attachment of said zipper to said first sheet and said side edge of said first sheet, said zipper having a first profile attached to said first sheet along said line of attachment and a second profile attached to said second sheet, said first and second profiles respectively having mating first and second interlocking members.
A method of making reclosable packaging comprising:
- providing a first sheet of film material and a second sheet of film material, said first sheet of film material being formed of thermoform material;
- thermoforming a slider pocket in said first sheet of film material;
- attaching a zipper between said sheets, said zipper having a first profile attached to said first sheet and a second profile attached to said second sheet, said first and second profiles respectively having mating first and second interlocking members and a slider disposed over said first and second interlocking members for opening and closing said zipper;
- and
- positioning said zipper slider in said pocket.
An apparatus for making reclosable packaging comprising:
- means for providing a first longitudinally extending sheet of film material and a second longitudinally extending sheet of film material, said first sheet of film material being formed of thermoform material, said second sheet being provided separately from said first sheet;
- means for forming a longitudinally extending line of weakness proximal to and spaced from a side edge of said first longitudinally extending sheet;
- means for positioning said first sheet to overlie said second sheet;
- and
- means for attaching a zipper between said sheets, said line of weakness being positioned between a line of attachment of said zipper to said first sheet and said side edge of said first sheet, said zipper having a first profile attached to said first sheet along said line of attachment and a second profile attached to said second sheet, said first and second profiles respectively having mating first and second interlocking members.
Dependencies are inferred from the claim text.