Zipper guide system for form tooling

Details Zipper guide system for form tooling Zipper guide system for form tooling

1989-04-24

1990-07-17

Sipos, John

Package making

Methods

Forming a cover adjunct or application of a cover adjunct to...

53133, 53450, 53551, 383 61, 383 63, B65B 906, B65B 6118, B65D 3316

Patent

active

049413074

ABSTRACT:
A method and mechanism for continuous wrapping of objects in a product package having a reclosable zipper thereon, providing a continuous sheet of thermoplastic film with a reclosable rib and groove fastener profile extending therealong parallel to the formation axis of the film with the profiles interlocked to form a flattened closure, guidingly wrapping the sheet around the object, simultaneously guiding the interlocked fastener to an upright position relative to the object, and flattening the upright interlocked profiles against an outer surface of a wall of the object and thereafter cross-sealing the film at the ends of the object locking the flattened profile to the package end.

REFERENCES:
patent: 2362460 (1944-11-01), Barnett
patent: 2385897 (1945-10-01), Waters
patent: 2882662 (1959-04-01), Campbell
patent: 4252238 (1981-02-01), Spiegelberg et al.
patent: 4428477 (1984-01-01), Cristofolo
patent: 4570820 (1986-02-01), Murphy
patent: 4625496 (1986-12-01), Ausnit
patent: 4663915 (1987-05-01), Van Erden et al.
patent: 4807426 (1989-02-01), Smith
patent: 4840012 (1989-06-01), Boeckmann

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