Method and Apparatus For Resealable Package with Internal Zipper Seal
AssigneeFrito-Lay North America, Inc.
InventorsFrank Mathew BRENKUS, Chad Arthur HUEBNER
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Abstract
Embodiments of the present disclosure describe a method and apparatus for a resealable package having an internal zipper seal. In one embodiment, the apparatus is a vertical form, fill, and seal machine that includes a former, a vertical sealer, and a zipper separation blade located between the former and the vertical sealer. The zipper separation blade further comprises a connector and a blade body that defines a zipper gap between an exterior surface of the former and the blade body.
Claims23
A vertical form, fill, and seal machine for forming a resealable bag, the vertical form, fill, and seal machine comprising:
- a former;
- a vertical sealer;
- a zipper separation blade coupled to the former and located between the former and the vertical sealer, wherein the zipper separation blade further comprises a connector coupled to a blade body, and wherein the zipper separation blade defines a zipper gap between an exterior surface of the former and the blade body.
A method for forming a resealable bag on a vertical form, fill, and seal machine from a film comprising a set of zipper strips;
- the vertical form, fill, and seal machine including a zipper separation blade;
- and the method comprising:
- wrapping a packaging film around a former to form a tube of film;
- isolating the unattached portion within a zipper gap while forming the back seal;
- and
- rejoining the unattached portion of the first zipper strip over the newly formed back seal.
Dependencies are inferred from the claim text.