Apparatus and method for securing a zipper closure to polymeric film
AssigneeReynolds Presto Products Inc.
InventorsCraig Soller, Carlos Chapek, Zachary Thompson, Aaron Wells, Gregory Heckman
Life of this patent
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Abstract
A method and apparatus for securing a zipper closure to polymeric film using minimal tension on the zipper closure includes providing first and second tension control loops, an eyemark detector, and a hole punch programmed to punch a hole in the zipper closure upon detection of the eyemark. The zipper closure and the film are supplied to a sealing station at the same speed, and the hole zipper closure is aligned with the eyemark on the film, to result in sealing the strip of zipper closure to the film resulting in minimal wrinkles to the resulting bag.
Claims7
An apparatus for securing a zipper closure to a polymeric film using minimal tension on the zipper closure;
- the apparatus comprising:
- (a) a tension control mechanism to provide at least some tension to a strip of zipper closure;
- (b) a first tension control loop downstream of the tension control mechanism;
- (c) an eyemark detector positioned to detect an eyemark on the film;
- (d) a hole punch downstream of the first tension control loop and programmed to punch a hole in the strip of zipper closure upon detection of the eyemark on the film;
- (e) a second tension control loop downstream of the hole punch;
- and
- (f) a sealing station downstream of the second tension control loop and of the eyemark detector and constructed and arranged to seal the strip of zipper closure to the film.
Dependencies are inferred from the claim text.