Method and apparatus for making reclosable bags in a form, fill

Details Method and apparatus for making reclosable bags in a form, fill Method and apparatus for making reclosable bags in a form, fill

1993-11-18

1995-04-18

Culver, Horace M.

Package making

Methods

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

53451, 53552, 531334, 533743, B65B 920, B65B 6118

Patent

active

RE0349054

ABSTRACT:
A method and apparatus for forming a vertical tubular form fill package feeding the film vertically downwardly over a spout, pressing the outer lateral edges of the film together between pressure rollers, feeding joined strips of plastic zipper consisting of interlocking elements and attaching webs between the outer edges of the film and the spout, positioning guide bars on either side of the zipper between the zipper webs and sealing bars outwardly of the guide bars with the sealing bars simultaneously forming a fin seal at the outer edge and joining the zipper webs to the inner surfaces of the film between the fin seal and the spout and thereafter cross-cutting and sealing to form packages enclosing contents dropped through the spout.

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