Zipper applied across a film in transverse direction

Details Zipper applied across a film in transverse direction Zipper applied across a film in transverse direction

2000-02-09

2000-10-17

Moon, Daniel B.

Package making

Methods

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

531334, 531392, 53451, 53551, 493213, 493214, 493927, B65B 6118

Patent

active

06131370&

ABSTRACT:
The apparatus and method attaches a section of unsupported interlocking zipper transversely to portion of film drawn around a fill tube of a form fill and sea machine. This includes the steps of driving and guiding said zipper horizontally around the outside of the film formed around the tube in a direction transverse to direction of movement of the film, after the formation of the fin seal. An alternative embodiment drives and guides the zipper horizontally around the inside of the film formed around the tube prior to the formation of the fin seal. A retractable ledge may be used to guide the zipper in the alternative embodiment. A slider operated zipper can also be used in this alternative.

REFERENCES:
patent: 4666536 (1987-05-01), Van Erden et al.
patent: 5111643 (1992-05-01), Hobock
patent: 5412924 (1995-05-01), Ausnit
patent: 5557907 (1996-09-01), Malin et al.
patent: 5564259 (1996-10-01), Stolmeier

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