Transverse zipper system

Details Transverse zipper system Transverse zipper system

1995-02-24

1996-09-24

Sipos, John

Package making

With cover-adjunct application or formation

Adjunct comprising provision to secure cover

53450, B65B 5104

Patent

active

055579078

ABSTRACT:
Packages being produced on a form, fill and seal machine as provided with transverse zippers inserted thereinto through a fin seal gap. Pairs of fin sealing bars are separated by a gap to produce the fin seal gap. The fin seal gap is opened, perhaps by vacuum means, and a zipper probe inserts a zipper having a web into the tube of plastic sheet material being formed into bags. The web of the zipper is sealed to the plastic sheet material, and the zipper probe withdrawn from the tube. Cross seal jaws seal both transverse ends of the package, a knife separates each package from that previously made, and a fin gap sealer seals the fin seal gap to complete the manufacture.

REFERENCES:
patent: 3807118 (1974-04-01), Pike
patent: 4617683 (1986-10-01), Christoff
patent: 4878978 (1989-11-01), Van Erden
patent: 4894975 (1990-01-01), Ausnit
patent: 5072571 (1991-12-01), Boeckmann
patent: 5085031 (1992-02-01), McDonald
patent: 5127208 (1992-07-01), Custer et al.
patent: 5425216 (1995-06-01), Ausnit

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